Snap MongoDB Server 3-8 support. Part 1.

Thanks to xet7 !

docs/Databases/MongoDB-Version-Management.md

@@ -0,0 +1,189 @@
+# MongoDB Version Management System
+
+This document describes the MongoDB version management system that automatically detects MongoDB server versions and switches to the appropriate binary and Node.js driver.
+
+## Overview
+
+The system provides:
+- **Automatic version detection** based on connection attempts and wire protocol errors
+- **Automatic binary switching** to the correct MongoDB server version
+- **Automatic driver selection** using the appropriate Node.js MongoDB driver
+- **Support for MongoDB versions 3-8** with fallback mechanisms
+
+## Current Status
+
+### Available MongoDB Server Binaries
+- ✅ **MongoDB 3.2.22** - Available at `/snap/wekan/current/migratemongo/bin/`
+- ❌ **MongoDB 4.4.28** - Not available (needs to be added to snap package)
+- ❌ **MongoDB 5.0.28** - Not available (needs to be added to snap package)
+- ❌ **MongoDB 6.0.15** - Not available (needs to be added to snap package)
+- ✅ **MongoDB 7.0.25** - Available at `/snap/wekan/current/bin/`
+- ❌ **MongoDB 8.0.4** - Not available (needs to be added to snap package)
+
+### Available MongoDB Node.js Drivers
+- ✅ **MongoDB 3.7.4** - Available as `mongodb3legacy`
+- ✅ **MongoDB 4.17.2** - Available as `mongodb4legacy`
+- ✅ **MongoDB 5.9.2** - Available as `mongodb5legacy`
+- ✅ **MongoDB 6.3.0** - Available as `mongodb6legacy`
+- ✅ **MongoDB 7.0.1** - Available as `mongodb7legacy`
+- ✅ **MongoDB 8.0** - Available as `mongodb8legacy`
+
+## How It Works
+
+### 1. Version Detection
+The system attempts to connect to MongoDB using the latest available binary (MongoDB 7.x) and analyzes the response:
+
+- **Success**: If connection succeeds, it's MongoDB 7.x
+- **Wire Protocol Error**: If connection fails with wire protocol errors, it detects the version based on the protocol version number:
+  - Protocol 0-3: MongoDB 3.x
+  - Protocol 4: MongoDB 4.x
+  - Protocol 5: MongoDB 5.x
+  - Protocol 6: MongoDB 6.x
+  - Protocol 7: MongoDB 7.x
+  - Protocol 8: MongoDB 8.x
+
+### 2. Binary Switching
+Based on the detected version, the system switches to the appropriate MongoDB server binary:
+
+```bash
+# MongoDB 3.x
+export PATH="/snap/wekan/current/migratemongo/bin:$PATH"
+export LD_LIBRARY_PATH="/snap/wekan/current/migratemongo/lib:$LD_LIBRARY_PATH"
+
+# MongoDB 7.x (default)
+export PATH="/snap/wekan/current/bin:$PATH"
+export LD_LIBRARY_PATH="/snap/wekan/current/usr/lib:$LD_LIBRARY_PATH"
+```
+
+### 3. Driver Selection
+The Node.js application automatically selects the appropriate MongoDB driver based on the detected version using the `mongodbDriverManager` system.
+
+## Files Modified
+
+### Removed Migration Files
+- ❌ `snap-src/bin/mongodb-migrate` - Removed
+- ❌ `snap-src/bin/mongodb-migration-web` - Removed  
+- ❌ `snap-src/bin/mongodb-migration-status` - Removed
+
+### Updated Files
+- ✅ `snap-src/bin/mongodb-control` - Completely rewritten with version detection
+- ✅ `snap-src/bin/mongodb-version-manager` - New utility for managing versions
+
+### Node.js Driver System
+- ✅ `models/lib/mongodbDriverManager.js` - Manages multiple MongoDB drivers
+- ✅ `models/lib/mongodbConnectionManager.js` - Handles connections with version detection
+- ✅ `models/lib/meteorMongoIntegration.js` - Integrates with Meteor's Mongo.Collection
+- ✅ `server/mongodb-driver-startup.js` - Initializes the driver system
+
+## Adding Missing MongoDB Server Binaries
+
+To add MongoDB versions 4, 5, 6, and 8 to the snap package, you need to:
+
+### 1. Download MongoDB Server Binaries
+Download the appropriate MongoDB server binaries for each version:
+
+```bash
+# MongoDB 4.4.28
+wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-4.4.28.tgz
+
+# MongoDB 5.0.28  
+wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-5.0.28.tgz
+
+# MongoDB 6.0.15
+wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-6.0.15.tgz
+
+# MongoDB 8.0.4
+wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-8.0.4.tgz
+```
+
+### 2. Extract and Install in Snap Package
+Extract each version to the appropriate directory in the snap package:
+
+```bash
+# Extract MongoDB 4.x
+tar -xzf mongodb-linux-x86_64-4.4.28.tgz
+mkdir -p /snap/wekan/current/mongodb4/bin
+cp mongodb-linux-x86_64-4.4.28/bin/* /snap/wekan/current/mongodb4/bin/
+
+# Extract MongoDB 5.x
+tar -xzf mongodb-linux-x86_64-5.0.28.tgz
+mkdir -p /snap/wekan/current/mongodb5/bin
+cp mongodb-linux-x86_64-5.0.28/bin/* /snap/wekan/current/mongodb5/bin/
+
+# Extract MongoDB 6.x
+tar -xzf mongodb-linux-x86_64-6.0.15.tgz
+mkdir -p /snap/wekan/current/mongodb6/bin
+cp mongodb-linux-x86_64-6.0.15/bin/* /snap/wekan/current/mongodb6/bin/
+
+# Extract MongoDB 8.x
+tar -xzf mongodb-linux-x86_64-8.0.4.tgz
+mkdir -p /snap/wekan/current/mongodb8/bin
+cp mongodb-linux-x86_64-8.0.4/bin/* /snap/wekan/current/mongodb8/bin/
+```
+
+### 3. Update Snap Package Build
+Modify the snap package build process to include these binaries in the final package.
+
+## Usage
+
+### Check Available Versions
+```bash
+$SNAP/bin/mongodb-version-manager versions
+```
+
+### Check Current Active Version
+```bash
+$SNAP/bin/mongodb-version-manager active
+```
+
+### Force Version Detection
+```bash
+$SNAP/bin/mongodb-version-manager detect
+```
+
+### View Detection Log
+```bash
+$SNAP/bin/mongodb-version-manager log
+```
+
+## Configuration
+
+### Environment Variables
+- `MONGO_URL` - MongoDB connection URL (default: `mongodb://127.0.0.1:27017/wekan`)
+- `SNAP_COMMON` - Snap common directory for logs and version files
+
+### Version Files
+- `${SNAP_COMMON}/mongodb-active-version` - Caches the currently active version
+- `${SNAP_COMMON}/mongodb-version-detection.log` - Logs version detection events
+
+## Benefits
+
+1. **No Downtime**: Automatic version detection and switching without manual intervention
+2. **Backward Compatibility**: Works with existing MongoDB 3.x databases
+3. **Forward Compatibility**: Ready for MongoDB 8.x when available
+4. **Automatic Fallback**: Falls back to MongoDB 7.x if detection fails
+5. **Comprehensive Logging**: Detailed logs for troubleshooting
+6. **No Migrations**: Eliminates the need for database migrations
+
+## Troubleshooting
+
+### Version Detection Not Working
+1. Check the detection log: `$SNAP/bin/mongodb-version-manager log`
+2. Force re-detection: `$SNAP/bin/mongodb-version-manager detect`
+3. Restart MongoDB service
+
+### Wrong Version Selected
+1. Clear the cached version: `rm ${SNAP_COMMON}/mongodb-active-version`
+2. Restart MongoDB service
+
+### Connection Issues
+1. Verify MongoDB server is running
+2. Check MONGO_URL environment variable
+3. Review MongoDB server logs
+
+## Future Enhancements
+
+1. **Add Missing Binaries**: Include MongoDB 4, 5, 6, and 8 server binaries in snap package
+2. **Health Checks**: Add health monitoring for different MongoDB versions
+3. **Performance Metrics**: Track performance across different versions
+4. **Auto-Upgrade**: Automatically upgrade to newer versions when available

snap-src/bin/mongodb-control

@@ -1,8 +1,8 @@
 #!/bin/bash
 
 # MongoDB Control Script
-# IMPORTANT: Migration is only triggered when MIGRATE_MONGODB=true environment variable is set
-# IMPORTANT: No snap settings or channel changes are made during migration
+# Handles MongoDB server startup with automatic version detection and switching
+# Supports MongoDB versions 3-8 with automatic binary selection
 
 # get wekan/mongo settings
 source $SNAP/bin/wekan-read-settings
@@ -13,117 +13,177 @@ if [ "true" == "${DISABLE_MONGODB}" ]; then
     exit 0
 fi
 
-# Migration checking and handling - controlled by MIGRATE_MONGODB environment variable
-MIGRATION_STATUS="${SNAP_COMMON}/mongodb-migration-status.json"
-MIGRATION_LOG="${SNAP_COMMON}/mongodb-migration-log.txt"
-REVERT_FILE="${SNAP_COMMON}/revert-mongodb-migration.txt"
-
-# Check if migration is needed
-check_migration_needed() {
-    if [ -f "$MIGRATION_STATUS" ]; then
-        local status=$(jq -r '.status' "$MIGRATION_STATUS" 2>/dev/null || echo "unknown")
-        if [ "$status" = "completed" ]; then
-            return 1
-        elif [ "$status" = "running" ]; then
-            return 0
-        fi
-    fi
-
-    # Check if we have MongoDB 3 data
-    if [ -d "${SNAP_COMMON}/wekan" ] && [ ! -f "${SNAP_COMMON}/mongodb-version-7" ]; then
-        return 0
-    fi
-
-    return 1
+# MongoDB Version Detection and Auto-Switching System
+# Detects MongoDB server version from connection attempts and switches to correct binary
+
+# MongoDB binary paths for different versions
+# Note: Currently only versions 3 and 7 are available in the snap package
+# Versions 4, 5, 6, 8 would need to be added to the snap package
+MONGO3_BIN="/snap/${SNAP_NAME}/current/migratemongo/bin"
+MONGO7_BIN="/snap/${SNAP_NAME}/current/bin"
+MONGO3_LIB="/snap/${SNAP_NAME}/current/migratemongo/lib"
+MONGO7_LIB="/snap/${SNAP_NAME}/current/usr/lib"
+
+# Future paths for additional versions (when added to snap package)
+MONGO4_BIN="/snap/${SNAP_NAME}/current/mongodb4/bin"
+MONGO5_BIN="/snap/${SNAP_NAME}/current/mongodb5/bin"
+MONGO6_BIN="/snap/${SNAP_NAME}/current/mongodb6/bin"
+MONGO8_BIN="/snap/${SNAP_NAME}/current/mongodb8/bin"
+
+# Version detection log
+VERSION_DETECTION_LOG="${SNAP_COMMON}/mongodb-version-detection.log"
+
+# Log version detection events
+log_version_detection() {
+    echo "$(date): $1" >> "$VERSION_DETECTION_LOG"
 }
 
-# Handle migration - only if MIGRATE_MONGODB=true
-handle_migration() {
-    echo "MongoDB migration needed, starting migration process..."
-
-    # Stop Wekan (meteor) process before migration
-    echo "Stopping Wekan (meteor) process for migration..."
-    snapctl stop --disable ${SNAP_NAME}.wekan || true
-    snapctl stop --disable ${SNAP_NAME} || true
+# Detect MongoDB server version by attempting connection
+detect_mongodb_version() {
+    local mongo_url="${MONGO_URL:-mongodb://127.0.0.1:27017/wekan}"
+    local detected_version=""
     
-    # Wait a moment for processes to stop
-    sleep 2
+    log_version_detection "Starting MongoDB version detection for: $mongo_url"
     
-    # Kill any remaining meteor/node processes
-    pkill -f "node.*main.js" || true
-    pkill -f "meteor" || true
-    sleep 1
-
-    # Start migration web interface in background
-    $SNAP/bin/mongodb-migration-web &
-    local web_pid=$!
-    echo "$web_pid" > "${SNAP_COMMON}/migration-web.pid"
-
-    # Run migration
-    if $SNAP/bin/mongodb-migrate; then
-        echo "MongoDB migration completed successfully"
-        # Kill migration web interface
-        if [ -f "${SNAP_COMMON}/migration-web.pid" ]; then
-            local web_pid=$(cat "${SNAP_COMMON}/migration-web.pid")
-            kill "$web_pid" 2>/dev/null || true
-            rm -f "${SNAP_COMMON}/migration-web.pid"
+    # Try to connect with MongoDB 7 first (latest available)
+    log_version_detection "Attempting connection with MongoDB 7 binary"
+    if timeout 10s /snap/${SNAP_NAME}/current/bin/mongosh --quiet --eval "db.runCommand({buildInfo: 1}).version" "$mongo_url" 2>/dev/null | grep -q "7\."; then
+        detected_version="7"
+        log_version_detection "Detected MongoDB 7.x server"
+    elif timeout 10s /snap/${SNAP_NAME}/current/bin/mongosh --quiet --eval "db.runCommand({buildInfo: 1}).version" "$mongo_url" 2>&1 | grep -q "protocol version\|wire protocol"; then
+        # Check for wire protocol errors that indicate older version
+        local error_output=$(timeout 10s /snap/${SNAP_NAME}/current/bin/mongosh --quiet --eval "db.runCommand({buildInfo: 1}).version" "$mongo_url" 2>&1)
+        if echo "$error_output" | grep -q "protocol version 0\|wire protocol version 0"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 0)"
+        elif echo "$error_output" | grep -q "protocol version 1\|wire protocol version 1"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 1)"
+        elif echo "$error_output" | grep -q "protocol version 2\|wire protocol version 2"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 2)"
+        elif echo "$error_output" | grep -q "protocol version 3\|wire protocol version 3"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 3)"
+        elif echo "$error_output" | grep -q "protocol version 4\|wire protocol version 4"; then
+            detected_version="4"
+            log_version_detection "Detected MongoDB 4.x server (wire protocol 4)"
+        elif echo "$error_output" | grep -q "protocol version 5\|wire protocol version 5"; then
+            detected_version="5"
+            log_version_detection "Detected MongoDB 5.x server (wire protocol 5)"
+        elif echo "$error_output" | grep -q "protocol version 6\|wire protocol version 6"; then
+            detected_version="6"
+            log_version_detection "Detected MongoDB 6.x server (wire protocol 6)"
+        elif echo "$error_output" | grep -q "protocol version 7\|wire protocol version 7"; then
+            detected_version="7"
+            log_version_detection "Detected MongoDB 7.x server (wire protocol 7)"
+        elif echo "$error_output" | grep -q "protocol version 8\|wire protocol version 8"; then
+            detected_version="8"
+            log_version_detection "Detected MongoDB 8.x server (wire protocol 8)"
+        else
+            log_version_detection "Unknown wire protocol error: $error_output"
         fi
-        
-        # Clean up temporary Node.js server file
-        rm -f "${SNAP_COMMON}/migration-web-server.js"
-        
-        echo "Migration completed. Wekan will be restarted automatically."
     else
-        echo "MongoDB migration failed"
-        # Kill migration web interface
-        if [ -f "${SNAP_COMMON}/migration-web.pid" ]; then
-            local web_pid=$(cat "${SNAP_COMMON}/migration-web.pid")
-            kill "$web_pid" 2>/dev/null || true
-            rm -f "${SNAP_COMMON}/migration-web.pid"
-        fi
-        
-        # Clean up temporary Node.js server file
-        rm -f "${SNAP_COMMON}/migration-web-server.js"
-        
-        exit 1
+        log_version_detection "No MongoDB server running or connection failed"
     fi
+    
+    echo "$detected_version"
 }
 
-# Check if revert is requested
-if [ -f "$REVERT_FILE" ]; then
-    echo "Revert requested, stopping Wekan and MongoDB, then reverting migration..."
-    
-    # Stop Wekan (meteor) process before revert
-    echo "Stopping Wekan (meteor) process for revert..."
-    snapctl stop --disable ${SNAP_NAME}.wekan || true
-    snapctl stop --disable ${SNAP_NAME} || true
-    
-    # Wait a moment for processes to stop
-    sleep 2
+# Switch to appropriate MongoDB binary based on detected version
+switch_mongodb_binary() {
+    local version="$1"
     
-    # Kill any remaining meteor/node processes
-    pkill -f "node.*main.js" || true
-    pkill -f "meteor" || true
-    sleep 1
-    
-    # Stop MongoDB
-    snapctl stop --disable ${SNAP_NAME}.mongodb
-    
-    # Run migration (which will handle revert)
-    $SNAP/bin/mongodb-migrate
-    exit $?
-fi
+    case "$version" in
+        "3")
+            if [ -f "/snap/${SNAP_NAME}/current/migratemongo/bin/mongod" ]; then
+                log_version_detection "Switching to MongoDB 3.x binary"
+                export PATH="${MONGO3_BIN}:${PATH}"
+                export LD_LIBRARY_PATH="${MONGO3_LIB}:${MONGO3_LIB}/x86_64-linux-gnu:${LD_LIBRARY_PATH}"
+                echo "3" > "${SNAP_COMMON}/mongodb-active-version"
+            else
+                log_version_detection "MongoDB 3.x binary not found, using default MongoDB 7.x"
+                switch_mongodb_binary "7"
+            fi
+            ;;
+        "4")
+            if [ -f "/snap/${SNAP_NAME}/current/mongodb4/bin/mongod" ]; then
+                log_version_detection "Switching to MongoDB 4.x binary"
+                export PATH="${MONGO4_BIN}:${PATH}"
+                echo "4" > "${SNAP_COMMON}/mongodb-active-version"
+            else
+                log_version_detection "MongoDB 4.x binary not found, using default MongoDB 7.x"
+                switch_mongodb_binary "7"
+            fi
+            ;;
+        "5")
+            if [ -f "/snap/${SNAP_NAME}/current/mongodb5/bin/mongod" ]; then
+                log_version_detection "Switching to MongoDB 5.x binary"
+                export PATH="${MONGO5_BIN}:${PATH}"
+                echo "5" > "${SNAP_COMMON}/mongodb-active-version"
+            else
+                log_version_detection "MongoDB 5.x binary not found, using default MongoDB 7.x"
+                switch_mongodb_binary "7"
+            fi
+            ;;
+        "6")
+            if [ -f "/snap/${SNAP_NAME}/current/mongodb6/bin/mongod" ]; then
+                log_version_detection "Switching to MongoDB 6.x binary"
+                export PATH="${MONGO6_BIN}:${PATH}"
+                echo "6" > "${SNAP_COMMON}/mongodb-active-version"
+            else
+                log_version_detection "MongoDB 6.x binary not found, using default MongoDB 7.x"
+                switch_mongodb_binary "7"
+            fi
+            ;;
+        "7"|"")
+            log_version_detection "Using MongoDB 7.x binary (default)"
+            export PATH="${MONGO7_BIN}:${PATH}"
+            export LD_LIBRARY_PATH="${MONGO7_LIB}:${LD_LIBRARY_PATH}"
+            echo "7" > "${SNAP_COMMON}/mongodb-active-version"
+            ;;
+        "8")
+            if [ -f "/snap/${SNAP_NAME}/current/mongodb8/bin/mongod" ]; then
+                log_version_detection "Switching to MongoDB 8.x binary"
+                export PATH="${MONGO8_BIN}:${PATH}"
+                echo "8" > "${SNAP_COMMON}/mongodb-active-version"
+            else
+                log_version_detection "MongoDB 8.x binary not found, using default MongoDB 7.x"
+                switch_mongodb_binary "7"
+            fi
+            ;;
+        *)
+            log_version_detection "Unknown version $version, using default MongoDB 7.x"
+            export PATH="${MONGO7_BIN}:${PATH}"
+            export LD_LIBRARY_PATH="${MONGO7_LIB}:${LD_LIBRARY_PATH}"
+            echo "7" > "${SNAP_COMMON}/mongodb-active-version"
+            ;;
+    esac
+}
 
-# Check if migration is needed - only if MIGRATE_MONGODB=true
-if [ "$MIGRATE_MONGODB" = "true" ]; then
-    if check_migration_needed; then
-        handle_migration
+# Main version detection and switching logic
+setup_mongodb_version() {
+    # Check if we have a cached version
+    if [ -f "${SNAP_COMMON}/mongodb-active-version" ]; then
+        local cached_version=$(cat "${SNAP_COMMON}/mongodb-active-version")
+        log_version_detection "Using cached MongoDB version: $cached_version"
+        switch_mongodb_binary "$cached_version"
+        return
+    fi
+    
+    # Detect version and switch
+    local detected_version=$(detect_mongodb_version)
+    if [ -n "$detected_version" ]; then
+        switch_mongodb_binary "$detected_version"
     else
-        echo "MIGRATE_MONGODB=true but no migration needed"
+        # Default to MongoDB 7 if detection fails
+        log_version_detection "Version detection failed, using default MongoDB 7.x"
+        switch_mongodb_binary "7"
     fi
-else
-    echo "MIGRATE_MONGODB not set to 'true' - skipping migration check"
-fi
+}
+
+# Run version detection and setup
+setup_mongodb_version
 
 # make sure we have set minimum env variables for locale
 if [ -z "${LANG}" ]; then
@@ -143,145 +203,93 @@ if [ -f ${SNAP_COMMON}/settings.log ]; then
     rm ${SNAP_COMMON}/settings.log
 fi
 
-#if test -f "$SNAP_COMMON/01-migrate-mongo3-to-mongo5.txt"; then
-#   touch "$SNAP_COMMON/01-migrate-mongo3-to-mongo5.txt"
-#   # Stop MongoDB
-#   touch "$SNAP_COMMON/02-disable-mongo.txt"
-#   snapctl stop --disable ${SNAP_NAME}.mongodb
-#   touch "$SNAP_COMMON/03-eval-stop-mongo.txt"
-#   mongo wekan --eval "db.getSiblingDB('admin').shutdownServer()" $BIND_OPTIONS
-#   # Start MongoDB 4.4
-#   touch "$SNAP_COMMON/04-start-mongo44.txt"
-#   $SNAP/mongo44bin/mongod --dbpath $SNAP_COMMON --logpath $SNAP_COMMON/02_mongodb_log_while_migrate.txt --logappend --journal $MONGO_URL --quiet
-#   # Wait MongoDB 4.4 to start
-#   touch "$SNAP_COMMON/05-wait-2s-mongo44-start.txt"
-#   sleep 2s
-#   # Dump Old MongoDB 3.x database
-#   touch "$SNAP_COMMON/06-dump-database.txt"
-#   (cd $SNAP_COMMON && mongodump --port ${MONGODB_PORT})
-#   # Stop MongoDB 4.4
-#   touch "$SNAP_COMMON/07-stop-mongo44.txt"
-#   $SNAP/mongo44bin/mongo wekan --eval "db.getSiblingDB('admin').shutdownServer()" $BIND_OPTIONS
-#   # Wait MongoDB 4.4 to stop
-#   touch "$SNAP_COMMON/08-wait-2s-mongo44-stop.txt"
-#   sleep 2s
-#   # Start MongoDB 5
-#   touch "$SNAP_COMMON/09-start-mongo5.txt"
-#   mongod --dbpath $SNAP_COMMON --logpath $SNAP_COMMON/10_mongodb_log_while_migrate.txt --logappend --journal $MONGO_URL --quiet
-#   # Restore database
-#   touch "$SNAP_COMMON/11-mongorestore-to-mongo5.txt"
-#   (cd $SNAP_COMMON && mongorestore --port ${MONGODB_PORT})
-#   # Wait 5s
-#   touch "$SNAP_COMMON/12-wait-5s-after-restore.txt"
-#   sleep 5s
-#   # Shutdown mongodb
-#   touch "$SNAP_COMMON/13-shutdown-mongodb.txt"
-#   mongo wekan --eval "db.getSiblingDB('admin').shutdownServer()" $BIND_OPTIONS
-#   touch "$SNAP_COMMON/14-wait-5s-after-mongo5-shutdown.txt"
-#   sleep 5s
-#   # Enable MongoDB 5
-#   touch "$SNAP_COMMON/15-enable-mongo-5.txt"
-#   snapctl start --enable ${SNAP_NAME}.mongodb
-#fi
-# When starting MongoDB, if logfile exist, delete it, because now uses syslog instead of logfile,
-# because syslog usually already has log rotation.
-# https://github.com/wekan/wekan-snap/issues/92
-#if test -f "$SNAP_COMMON/mongodb.log"; then
-#   rm -f "$SNAP_COMMON/mongodb.log"
-#fi
-
-# Alternative: When starting MongoDB, and using logfile, truncate log to last 1000 lines of text.
-# 1) If file exists:
-#if test -f "$SNAP_COMMON/mongodb.log"; then
-#    # 2) Copy last 1000 lines to variable loglast1000lines.
-#    loglast1000lines=$(tail -1000 "$SNAP_COMMON/mongodb.log")
-#    # 3) Copy variable to replace original MongoDB log.
-#    echo "$loglast1000lines" > "$SNAP_COMMON/mongodb.log"
-#    # 4) Set variable to be empty.
-#    loglast1000lines=""
-#fi
-
-if [ -z "${MONGO_URL}" ]; then
-
-    # start mongo deamon
-    BIND_OPTIONS=""
-    if [ "nill" != "${MONGODB_BIND_UNIX_SOCKET}" ] && [ "x" != "x${MONGODB_BIND_UNIX_SOCKET}" ]; then
-        BIND_OPTIONS+=" --unixSocketPrefix ${MONGODB_BIND_UNIX_SOCKET}"
-    fi
-    # Newest MongoDB uses --host or --bind_ip
-    if [ "x" != "x${MONGODB_BIND_IP}" ]; then
-        BIND_OPTIONS+=" --bind_ip $MONGODB_BIND_IP"
-    fi
-    if [ "x" != "x${MONGODB_PORT}" ]; then
-        BIND_OPTIONS+=" --port ${MONGODB_PORT}"
-    fi
-
-    if [ "syslog" == "${MONGO_LOG_DESTINATION}" ]; then
-        echo "Sending mongodb logs to syslog"
-        mongod --dbpath ${SNAP_COMMON} --syslog ${BIND_OPTIONS} --quiet
-        exit 0
-    fi
-
-    if [ "snapcommon" == "${MONGO_LOG_DESTINATION}" ]; then
-        echo "Sending mongodb logs to $SNAP_COMMON"
-        mongod --dbpath ${SNAP_COMMON} --logpath ${SNAP_COMMON}/mongodb.log --logappend ${BIND_OPTIONS} --quiet
-    fi
-
-    if [ "devnull" == "${MONGO_LOG_DESTINATION}" ]; then
-        echo "Sending mongodb logs to /dev/null"
-        mongod --dbpath ${SNAP_COMMON} --logpath /dev/null ${BIND_OPTIONS} --quiet
-    fi
-    #echo "mongodb log destination: ${MONGO_LOG_DESTINATION}" >> "${SNAP_COMMON}/settings.log"
-
-    # Disable MongoDB telemetry and free monitoring
-    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'disableTelemetry();' --port ${MONGODB_PORT}
-    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'db.disableFreeMonitoring();' --port ${MONGODB_PORT}
-
-    # Snap: Disable apparmor="DENIED" at syslog
-    # https://github.com/wekan/wekan/issues/4855
-    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'db.adminCommand({ setParameter: 1, diagnosticDataCollectionEnabled: false});' --port ${MONGODB_PORT}
-
-    # Drop indexes on database upgrade, when starting MongoDB
-    #mongosh wekan --eval "db.getCollectionNames().forEach(function(col_name) { var coll = db.getCollection(col_name); coll.dropIndexes(); });" $BIND_OPTIONS
-
-    # Set MongoDB feature compatibility version
-    #mongosh wekan --eval 'db.adminCommand({ setFeatureCompatibilityVersion: "4.4" });' ${BIND_OPTIONS}
+# Set MongoDB log destination to snapcommon for log file detection
+export MONGO_LOG_DESTINATION="snapcommon"
 
-    # Delete incomplete uploads so that they would not prevent starting WeKan
-    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'db.getCollection("cfs.attachments.filerecord").find( { "uploadedAt": { "$exists": true }, "copies.attachments" : null,"failures.copies.attachments.doneTrying" : {"$ne" : true}});' --port ${MONGODB_PORT}
-
-else
-
-    if [ "syslog" == "${MONGO_LOG_DESTINATION}" ]; then
-        echo "Sending mongodb logs to syslog"
-        mongod --dbpath ${SNAP_COMMON} --syslog ${MONGO_URL} --quiet
-    fi
-
-    if [ "snapcommon" == "${MONGO_LOG_DESTINATION}" ]; then
-        echo "Sending mongodb logs to ${SNAP_COMMON}"
-        mongod --dbpath ${SNAP_COMMON} --logpath ${SNAP_COMMON}/mongodb.log --logappend ${MONGO_URL} --quiet
-    fi
-
-    if [ "devnull" == "${MONGO_LOG_DESTINATION}" ]; then
-        echo "Sending mongodb logs to /dev/null"
-        mongod --dbpath ${SNAP_COMMON} --logpath /dev/null ${MONGO_URL} --quiet
-    fi
-
-    # Disable MongoDB telemetry and free monitoring
-    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'disableTelemetry();'
-    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.disableFreeMonitoring();'
-
-    # Snap: Disable apparmor="DENIED" at syslog
-    # https://github.com/wekan/wekan/issues/4855
-    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.adminCommand({ setParameter: 1, diagnosticDataCollectionEnabled: false});'
-
-    # Drop indexes on database upgrade, when starting MongoDB
-    #mongosh wekan --eval "db.getCollectionNames().forEach(function(col_name) { var coll = db.getCollection(col_name); coll.dropIndexes(); });" $BIND_OPTIONS
-
-    # Set MongoDB feature compatibility version
-    #/snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.adminCommand({ setFeatureCompatibilityVersion: "4.4" });'
-
-    # Delete incomplete uploads so that they would not prevent starting WeKan
-    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.getCollection("cfs.attachments.filerecord").find( { "uploadedAt": { "$exists": true }, "copies.attachments" : null,"failures.copies.attachments.doneTrying" : {"$ne" : true}});'
+# Set MongoDB data directory
+export MONGO_DATA_DIR="${SNAP_COMMON}/wekan"
 
+# Create MongoDB data directory if it doesn't exist
+if [ ! -d "$MONGO_DATA_DIR" ]; then
+    mkdir -p "$MONGO_DATA_DIR"
+    chmod 755 "$MONGO_DATA_DIR"
 fi
+
+# Set MongoDB log file path
+export MONGO_LOG_FILE="${SNAP_COMMON}/mongodb.log"
+
+# Start MongoDB with appropriate version
+echo "Starting MongoDB with detected version..."
+log_version_detection "Starting MongoDB server"
+
+# Get the active version
+ACTIVE_VERSION=$(cat "${SNAP_COMMON}/mongodb-active-version" 2>/dev/null || echo "7")
+
+case "$ACTIVE_VERSION" in
+    "3")
+        echo "Starting MongoDB 3.x server..."
+        log_version_detection "Starting MongoDB 3.x server"
+        exec /snap/${SNAP_NAME}/current/migratemongo/bin/mongod \
+            --dbpath="$MONGO_DATA_DIR" \
+            --logpath="$MONGO_LOG_FILE" \
+            --logappend \
+            --bind_ip=127.0.0.1 \
+            --port=27017 \
+            --fork
+        ;;
+    "4")
+        echo "Starting MongoDB 4.x server..."
+        log_version_detection "Starting MongoDB 4.x server"
+        exec /snap/${SNAP_NAME}/current/mongodb4/bin/mongod \
+            --dbpath="$MONGO_DATA_DIR" \
+            --logpath="$MONGO_LOG_FILE" \
+            --logappend \
+            --bind_ip=127.0.0.1 \
+            --port=27017 \
+            --fork
+        ;;
+    "5")
+        echo "Starting MongoDB 5.x server..."
+        log_version_detection "Starting MongoDB 5.x server"
+        exec /snap/${SNAP_NAME}/current/mongodb5/bin/mongod \
+            --dbpath="$MONGO_DATA_DIR" \
+            --logpath="$MONGO_LOG_FILE" \
+            --logappend \
+            --bind_ip=127.0.0.1 \
+            --port=27017 \
+            --fork
+        ;;
+    "6")
+        echo "Starting MongoDB 6.x server..."
+        log_version_detection "Starting MongoDB 6.x server"
+        exec /snap/${SNAP_NAME}/current/mongodb6/bin/mongod \
+            --dbpath="$MONGO_DATA_DIR" \
+            --logpath="$MONGO_LOG_FILE" \
+            --logappend \
+            --bind_ip=127.0.0.1 \
+            --port=27017 \
+            --fork
+        ;;
+    "7"|*)
+        echo "Starting MongoDB 7.x server..."
+        log_version_detection "Starting MongoDB 7.x server"
+        exec /snap/${SNAP_NAME}/current/bin/mongod \
+            --dbpath="$MONGO_DATA_DIR" \
+            --logpath="$MONGO_LOG_FILE" \
+            --logappend \
+            --bind_ip=127.0.0.1 \
+            --port=27017 \
+            --fork
+        ;;
+    "8")
+        echo "Starting MongoDB 8.x server..."
+        log_version_detection "Starting MongoDB 8.x server"
+        exec /snap/${SNAP_NAME}/current/mongodb8/bin/mongod \
+            --dbpath="$MONGO_DATA_DIR" \
+            --logpath="$MONGO_LOG_FILE" \
+            --logappend \
+            --bind_ip=127.0.0.1 \
+            --port=27017 \
+            --fork
+        ;;
+esac

snap-src/bin/mongodb-control-new

@@ -0,0 +1,179 @@
+#!/bin/bash
+
+# MongoDB Control Script
+# Handles MongoDB server startup with automatic version detection and switching
+
+# get wekan/mongo settings
+source $SNAP/bin/wekan-read-settings
+
+if [ "true" == "${DISABLE_MONGODB}" ]; then
+    echo "mongodb is disabled. Stop service"
+    snapctl stop --disable ${SNAP_NAME}.mongodb
+    exit 0
+fi
+
+# MongoDB Version Detection and Auto-Switching System
+# Detects MongoDB server version from connection attempts and switches to correct binary
+
+# MongoDB binary paths for different versions
+MONGO3_BIN="/snap/${SNAP_NAME}/current/migratemongo/bin"
+MONGO7_BIN="/snap/${SNAP_NAME}/current/bin"
+MONGO3_LIB="/snap/${SNAP_NAME}/current/migratemongo/lib"
+MONGO7_LIB="/snap/${SNAP_NAME}/current/usr/lib"
+
+# Version detection log
+VERSION_DETECTION_LOG="${SNAP_COMMON}/mongodb-version-detection.log"
+
+# Log version detection events
+log_version_detection() {
+    echo "$(date): $1" >> "$VERSION_DETECTION_LOG"
+}
+
+# Detect MongoDB server version by attempting connection
+detect_mongodb_version() {
+    local mongo_url="${MONGO_URL:-mongodb://127.0.0.1:27017/wekan}"
+    local detected_version=""
+    
+    log_version_detection "Starting MongoDB version detection for: $mongo_url"
+    
+    # Try to connect with MongoDB 7 first (latest)
+    log_version_detection "Attempting connection with MongoDB 7 binary"
+    if timeout 10s /snap/${SNAP_NAME}/current/bin/mongosh --quiet --eval "db.runCommand({buildInfo: 1}).version" "$mongo_url" 2>/dev/null | grep -q "7\."; then
+        detected_version="7"
+        log_version_detection "Detected MongoDB 7.x server"
+    elif timeout 10s /snap/${SNAP_NAME}/current/bin/mongosh --quiet --eval "db.runCommand({buildInfo: 1}).version" "$mongo_url" 2>&1 | grep -q "protocol version\|wire protocol"; then
+        # Check for wire protocol errors that indicate older version
+        local error_output=$(timeout 10s /snap/${SNAP_NAME}/current/bin/mongosh --quiet --eval "db.runCommand({buildInfo: 1}).version" "$mongo_url" 2>&1)
+        if echo "$error_output" | grep -q "protocol version 0\|wire protocol version 0"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 0)"
+        elif echo "$error_output" | grep -q "protocol version 1\|wire protocol version 1"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 1)"
+        elif echo "$error_output" | grep -q "protocol version 2\|wire protocol version 2"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 2)"
+        elif echo "$error_output" | grep -q "protocol version 3\|wire protocol version 3"; then
+            detected_version="3"
+            log_version_detection "Detected MongoDB 3.x server (wire protocol 3)"
+        else
+            log_version_detection "Unknown wire protocol error: $error_output"
+        fi
+    else
+        log_version_detection "No MongoDB server running or connection failed"
+    fi
+    
+    echo "$detected_version"
+}
+
+# Switch to appropriate MongoDB binary based on detected version
+switch_mongodb_binary() {
+    local version="$1"
+    
+    case "$version" in
+        "3")
+            log_version_detection "Switching to MongoDB 3.x binary"
+            export PATH="${MONGO3_BIN}:${PATH}"
+            export LD_LIBRARY_PATH="${MONGO3_LIB}:${MONGO3_LIB}/x86_64-linux-gnu:${LD_LIBRARY_PATH}"
+            echo "3" > "${SNAP_COMMON}/mongodb-active-version"
+            ;;
+        "7"|"")
+            log_version_detection "Using MongoDB 7.x binary (default)"
+            export PATH="${MONGO7_BIN}:${PATH}"
+            export LD_LIBRARY_PATH="${MONGO7_LIB}:${LD_LIBRARY_PATH}"
+            echo "7" > "${SNAP_COMMON}/mongodb-active-version"
+            ;;
+        *)
+            log_version_detection "Unknown version $version, using default MongoDB 7.x"
+            export PATH="${MONGO7_BIN}:${PATH}"
+            export LD_LIBRARY_PATH="${MONGO7_LIB}:${LD_LIBRARY_PATH}"
+            echo "7" > "${SNAP_COMMON}/mongodb-active-version"
+            ;;
+    esac
+}
+
+# Main version detection and switching logic
+setup_mongodb_version() {
+    # Check if we have a cached version
+    if [ -f "${SNAP_COMMON}/mongodb-active-version" ]; then
+        local cached_version=$(cat "${SNAP_COMMON}/mongodb-active-version")
+        log_version_detection "Using cached MongoDB version: $cached_version"
+        switch_mongodb_binary "$cached_version"
+        return
+    fi
+    
+    # Detect version and switch
+    local detected_version=$(detect_mongodb_version)
+    if [ -n "$detected_version" ]; then
+        switch_mongodb_binary "$detected_version"
+    else
+        # Default to MongoDB 7 if detection fails
+        log_version_detection "Version detection failed, using default MongoDB 7.x"
+        switch_mongodb_binary "7"
+    fi
+}
+
+# Run version detection and setup
+setup_mongodb_version
+
+# make sure we have set minimum env variables for locale
+if [ -z "${LANG}" ]; then
+    export LANG=en_US.UTF-8
+fi
+
+export LC_ALL=C
+# If CPU does not support AVX, use Qemu that supports AVX.
+# Migratemongo is at https://github.com/wekan/migratemongo
+# and at directory /snap/${SNAP_NAME}/current/migratemongo/avx
+# is bash scripts like mongod, mongosh check avx support and use Qemu if needed.
+export PATH=/snap/${SNAP_NAME}/current/migratemongo/avx:/snap/${SNAP_NAME}/current/usr/bin:/snap/${SNAP_NAME}/current/bin:${PATH}
+export LD_LIBRARY_PATH=/snap/${SNAP_NAME}/current/lib:/snap/${SNAP_NAME}/current/lib/x86_64-linux-gnu:${LD_LIBRARY_PATH}
+
+# If temporary settings log exists, delete it
+if [ -f ${SNAP_COMMON}/settings.log ]; then
+    rm ${SNAP_COMMON}/settings.log
+fi
+
+# Set MongoDB log destination to snapcommon for log file detection
+export MONGO_LOG_DESTINATION="snapcommon"
+
+# Set MongoDB data directory
+export MONGO_DATA_DIR="${SNAP_COMMON}/wekan"
+
+# Create MongoDB data directory if it doesn't exist
+if [ ! -d "$MONGO_DATA_DIR" ]; then
+    mkdir -p "$MONGO_DATA_DIR"
+    chmod 755 "$MONGO_DATA_DIR"
+fi
+
+# Set MongoDB log file path
+export MONGO_LOG_FILE="${SNAP_COMMON}/mongodb.log"
+
+# Start MongoDB with appropriate version
+echo "Starting MongoDB with detected version..."
+log_version_detection "Starting MongoDB server"
+
+# Get the active version
+ACTIVE_VERSION=$(cat "${SNAP_COMMON}/mongodb-active-version" 2>/dev/null || echo "7")
+
+if [ "$ACTIVE_VERSION" = "3" ]; then
+    echo "Starting MongoDB 3.x server..."
+    log_version_detection "Starting MongoDB 3.x server"
+    exec /snap/${SNAP_NAME}/current/migratemongo/bin/mongod \
+        --dbpath="$MONGO_DATA_DIR" \
+        --logpath="$MONGO_LOG_FILE" \
+        --logappend \
+        --bind_ip=127.0.0.1 \
+        --port=27017 \
+        --fork
+else
+    echo "Starting MongoDB 7.x server..."
+    log_version_detection "Starting MongoDB 7.x server"
+    exec /snap/${SNAP_NAME}/current/bin/mongod \
+        --dbpath="$MONGO_DATA_DIR" \
+        --logpath="$MONGO_LOG_FILE" \
+        --logappend \
+        --bind_ip=127.0.0.1 \
+        --port=27017 \
+        --fork
+fi

snap-src/bin/mongodb-control-old

@@ -0,0 +1,281 @@
+#!/bin/bash
+
+# MongoDB Control Script
+# Handles MongoDB server startup with automatic version detection and switching
+
+# get wekan/mongo settings
+source $SNAP/bin/wekan-read-settings
+
+if [ "true" == "${DISABLE_MONGODB}" ]; then
+    echo "mongodb is disabled. Stop service"
+    snapctl stop --disable ${SNAP_NAME}.mongodb
+    exit 0
+fi
+
+# Check if migration is needed
+check_migration_needed() {
+    if [ -f "$MIGRATION_STATUS" ]; then
+        local status=$(jq -r '.status' "$MIGRATION_STATUS" 2>/dev/null || echo "unknown")
+        if [ "$status" = "completed" ]; then
+            return 1
+        elif [ "$status" = "running" ]; then
+            return 0
+        fi
+    fi
+
+    # Check if we have MongoDB 3 data
+    if [ -d "${SNAP_COMMON}/wekan" ] && [ ! -f "${SNAP_COMMON}/mongodb-version-7" ]; then
+        return 0
+    fi
+
+    return 1
+}
+
+# Handle migration - only if MIGRATE_MONGODB=true
+handle_migration() {
+    echo "MongoDB migration needed, starting migration process..."
+
+    # Stop Wekan (meteor) process before migration
+    echo "Stopping Wekan (meteor) process for migration..."
+    snapctl stop --disable ${SNAP_NAME}.wekan || true
+    snapctl stop --disable ${SNAP_NAME} || true
+    
+    # Wait a moment for processes to stop
+    sleep 2
+    
+    # Kill any remaining meteor/node processes
+    pkill -f "node.*main.js" || true
+    pkill -f "meteor" || true
+    sleep 1
+
+    # Start migration web interface in background
+    $SNAP/bin/mongodb-migration-web &
+    local web_pid=$!
+    echo "$web_pid" > "${SNAP_COMMON}/migration-web.pid"
+
+    # Run migration
+    if $SNAP/bin/mongodb-migrate; then
+        echo "MongoDB migration completed successfully"
+        # Kill migration web interface
+        if [ -f "${SNAP_COMMON}/migration-web.pid" ]; then
+            local web_pid=$(cat "${SNAP_COMMON}/migration-web.pid")
+            kill "$web_pid" 2>/dev/null || true
+            rm -f "${SNAP_COMMON}/migration-web.pid"
+        fi
+        
+        # Clean up temporary Node.js server file
+        rm -f "${SNAP_COMMON}/migration-web-server.js"
+        
+        echo "Migration completed. Wekan will be restarted automatically."
+    else
+        echo "MongoDB migration failed"
+        # Kill migration web interface
+        if [ -f "${SNAP_COMMON}/migration-web.pid" ]; then
+            local web_pid=$(cat "${SNAP_COMMON}/migration-web.pid")
+            kill "$web_pid" 2>/dev/null || true
+            rm -f "${SNAP_COMMON}/migration-web.pid"
+        fi
+        
+        # Clean up temporary Node.js server file
+        rm -f "${SNAP_COMMON}/migration-web-server.js"
+        
+        exit 1
+    fi
+}
+
+# Check if revert is requested
+if [ -f "$REVERT_FILE" ]; then
+    echo "Revert requested, stopping Wekan and MongoDB, then reverting migration..."
+    
+    # Stop Wekan (meteor) process before revert
+    echo "Stopping Wekan (meteor) process for revert..."
+    snapctl stop --disable ${SNAP_NAME}.wekan || true
+    snapctl stop --disable ${SNAP_NAME} || true
+    
+    # Wait a moment for processes to stop
+    sleep 2
+    
+    # Kill any remaining meteor/node processes
+    pkill -f "node.*main.js" || true
+    pkill -f "meteor" || true
+    sleep 1
+    
+    # Stop MongoDB
+    snapctl stop --disable ${SNAP_NAME}.mongodb
+    
+    # Run migration (which will handle revert)
+    $SNAP/bin/mongodb-migrate
+    exit $?
+fi
+
+# Check if migration is needed - only if MIGRATE_MONGODB=true
+if [ "$MIGRATE_MONGODB" = "true" ]; then
+    if check_migration_needed; then
+        handle_migration
+    else
+        echo "MIGRATE_MONGODB=true but no migration needed"
+    fi
+else
+    echo "MIGRATE_MONGODB not set to 'true' - skipping migration check"
+fi
+
+# make sure we have set minimum env variables for locale
+if [ -z "${LANG}" ]; then
+    export LANG=en_US.UTF-8
+fi
+
+export LC_ALL=C
+# If CPU does not support AVX, use Qemu that supports AVX.
+# Migratemongo is at https://github.com/wekan/migratemongo
+# and at directory /snap/${SNAP_NAME}/current/migratemongo/avx
+# is bash scripts like mongod, mongosh check avx support and use Qemu if needed.
+export PATH=/snap/${SNAP_NAME}/current/migratemongo/avx:/snap/${SNAP_NAME}/current/usr/bin:/snap/${SNAP_NAME}/current/bin:${PATH}
+export LD_LIBRARY_PATH=/snap/${SNAP_NAME}/current/lib:/snap/${SNAP_NAME}/current/lib/x86_64-linux-gnu:${LD_LIBRARY_PATH}
+
+# If temporary settings log exists, delete it
+if [ -f ${SNAP_COMMON}/settings.log ]; then
+    rm ${SNAP_COMMON}/settings.log
+fi
+
+#if test -f "$SNAP_COMMON/01-migrate-mongo3-to-mongo5.txt"; then
+#   touch "$SNAP_COMMON/01-migrate-mongo3-to-mongo5.txt"
+#   # Stop MongoDB
+#   touch "$SNAP_COMMON/02-disable-mongo.txt"
+#   snapctl stop --disable ${SNAP_NAME}.mongodb
+#   touch "$SNAP_COMMON/03-eval-stop-mongo.txt"
+#   mongo wekan --eval "db.getSiblingDB('admin').shutdownServer()" $BIND_OPTIONS
+#   # Start MongoDB 4.4
+#   touch "$SNAP_COMMON/04-start-mongo44.txt"
+#   $SNAP/mongo44bin/mongod --dbpath $SNAP_COMMON --logpath $SNAP_COMMON/02_mongodb_log_while_migrate.txt --logappend --journal $MONGO_URL --quiet
+#   # Wait MongoDB 4.4 to start
+#   touch "$SNAP_COMMON/05-wait-2s-mongo44-start.txt"
+#   sleep 2s
+#   # Dump Old MongoDB 3.x database
+#   touch "$SNAP_COMMON/06-dump-database.txt"
+#   (cd $SNAP_COMMON && mongodump --port ${MONGODB_PORT})
+#   # Stop MongoDB 4.4
+#   touch "$SNAP_COMMON/07-stop-mongo44.txt"
+#   $SNAP/mongo44bin/mongo wekan --eval "db.getSiblingDB('admin').shutdownServer()" $BIND_OPTIONS
+#   # Wait MongoDB 4.4 to stop
+#   touch "$SNAP_COMMON/08-wait-2s-mongo44-stop.txt"
+#   sleep 2s
+#   # Start MongoDB 5
+#   touch "$SNAP_COMMON/09-start-mongo5.txt"
+#   mongod --dbpath $SNAP_COMMON --logpath $SNAP_COMMON/10_mongodb_log_while_migrate.txt --logappend --journal $MONGO_URL --quiet
+#   # Restore database
+#   touch "$SNAP_COMMON/11-mongorestore-to-mongo5.txt"
+#   (cd $SNAP_COMMON && mongorestore --port ${MONGODB_PORT})
+#   # Wait 5s
+#   touch "$SNAP_COMMON/12-wait-5s-after-restore.txt"
+#   sleep 5s
+#   # Shutdown mongodb
+#   touch "$SNAP_COMMON/13-shutdown-mongodb.txt"
+#   mongo wekan --eval "db.getSiblingDB('admin').shutdownServer()" $BIND_OPTIONS
+#   touch "$SNAP_COMMON/14-wait-5s-after-mongo5-shutdown.txt"
+#   sleep 5s
+#   # Enable MongoDB 5
+#   touch "$SNAP_COMMON/15-enable-mongo-5.txt"
+#   snapctl start --enable ${SNAP_NAME}.mongodb
+#fi
+# When starting MongoDB, if logfile exist, delete it, because now uses syslog instead of logfile,
+# because syslog usually already has log rotation.
+# https://github.com/wekan/wekan-snap/issues/92
+#if test -f "$SNAP_COMMON/mongodb.log"; then
+#   rm -f "$SNAP_COMMON/mongodb.log"
+#fi
+
+# Alternative: When starting MongoDB, and using logfile, truncate log to last 1000 lines of text.
+# 1) If file exists:
+#if test -f "$SNAP_COMMON/mongodb.log"; then
+#    # 2) Copy last 1000 lines to variable loglast1000lines.
+#    loglast1000lines=$(tail -1000 "$SNAP_COMMON/mongodb.log")
+#    # 3) Copy variable to replace original MongoDB log.
+#    echo "$loglast1000lines" > "$SNAP_COMMON/mongodb.log"
+#    # 4) Set variable to be empty.
+#    loglast1000lines=""
+#fi
+
+if [ -z "${MONGO_URL}" ]; then
+
+    # start mongo deamon
+    BIND_OPTIONS=""
+    if [ "nill" != "${MONGODB_BIND_UNIX_SOCKET}" ] && [ "x" != "x${MONGODB_BIND_UNIX_SOCKET}" ]; then
+        BIND_OPTIONS+=" --unixSocketPrefix ${MONGODB_BIND_UNIX_SOCKET}"
+    fi
+    # Newest MongoDB uses --host or --bind_ip
+    if [ "x" != "x${MONGODB_BIND_IP}" ]; then
+        BIND_OPTIONS+=" --bind_ip $MONGODB_BIND_IP"
+    fi
+    if [ "x" != "x${MONGODB_PORT}" ]; then
+        BIND_OPTIONS+=" --port ${MONGODB_PORT}"
+    fi
+
+    if [ "syslog" == "${MONGO_LOG_DESTINATION}" ]; then
+        echo "Sending mongodb logs to syslog"
+        mongod --dbpath ${SNAP_COMMON} --syslog ${BIND_OPTIONS} --quiet
+        exit 0
+    fi
+
+    if [ "snapcommon" == "${MONGO_LOG_DESTINATION}" ]; then
+        echo "Sending mongodb logs to $SNAP_COMMON"
+        mongod --dbpath ${SNAP_COMMON} --logpath ${SNAP_COMMON}/mongodb.log --logappend ${BIND_OPTIONS} --quiet
+    fi
+
+    if [ "devnull" == "${MONGO_LOG_DESTINATION}" ]; then
+        echo "Sending mongodb logs to /dev/null"
+        mongod --dbpath ${SNAP_COMMON} --logpath /dev/null ${BIND_OPTIONS} --quiet
+    fi
+    #echo "mongodb log destination: ${MONGO_LOG_DESTINATION}" >> "${SNAP_COMMON}/settings.log"
+
+    # Disable MongoDB telemetry and free monitoring
+    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'disableTelemetry();' --port ${MONGODB_PORT}
+    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'db.disableFreeMonitoring();' --port ${MONGODB_PORT}
+
+    # Snap: Disable apparmor="DENIED" at syslog
+    # https://github.com/wekan/wekan/issues/4855
+    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'db.adminCommand({ setParameter: 1, diagnosticDataCollectionEnabled: false});' --port ${MONGODB_PORT}
+
+    # Drop indexes on database upgrade, when starting MongoDB
+    #mongosh wekan --eval "db.getCollectionNames().forEach(function(col_name) { var coll = db.getCollection(col_name); coll.dropIndexes(); });" $BIND_OPTIONS
+
+    # Set MongoDB feature compatibility version
+    #mongosh wekan --eval 'db.adminCommand({ setFeatureCompatibilityVersion: "4.4" });' ${BIND_OPTIONS}
+
+    # Delete incomplete uploads so that they would not prevent starting WeKan
+    /snap/${SNAP_NAME}/current/bin/mongosh wekan --eval 'db.getCollection("cfs.attachments.filerecord").find( { "uploadedAt": { "$exists": true }, "copies.attachments" : null,"failures.copies.attachments.doneTrying" : {"$ne" : true}});' --port ${MONGODB_PORT}
+
+else
+
+    if [ "syslog" == "${MONGO_LOG_DESTINATION}" ]; then
+        echo "Sending mongodb logs to syslog"
+        mongod --dbpath ${SNAP_COMMON} --syslog ${MONGO_URL} --quiet
+    fi
+
+    if [ "snapcommon" == "${MONGO_LOG_DESTINATION}" ]; then
+        echo "Sending mongodb logs to ${SNAP_COMMON}"
+        mongod --dbpath ${SNAP_COMMON} --logpath ${SNAP_COMMON}/mongodb.log --logappend ${MONGO_URL} --quiet
+    fi
+
+    if [ "devnull" == "${MONGO_LOG_DESTINATION}" ]; then
+        echo "Sending mongodb logs to /dev/null"
+        mongod --dbpath ${SNAP_COMMON} --logpath /dev/null ${MONGO_URL} --quiet
+    fi
+
+    # Disable MongoDB telemetry and free monitoring
+    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'disableTelemetry();'
+    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.disableFreeMonitoring();'
+
+    # Snap: Disable apparmor="DENIED" at syslog
+    # https://github.com/wekan/wekan/issues/4855
+    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.adminCommand({ setParameter: 1, diagnosticDataCollectionEnabled: false});'
+
+    # Drop indexes on database upgrade, when starting MongoDB
+    #mongosh wekan --eval "db.getCollectionNames().forEach(function(col_name) { var coll = db.getCollection(col_name); coll.dropIndexes(); });" $BIND_OPTIONS
+
+    # Set MongoDB feature compatibility version
+    #/snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.adminCommand({ setFeatureCompatibilityVersion: "4.4" });'
+
+    # Delete incomplete uploads so that they would not prevent starting WeKan
+    /snap/${SNAP_NAME}/current/bin/mongosh ${MONGO_URL} --eval 'db.getCollection("cfs.attachments.filerecord").find( { "uploadedAt": { "$exists": true }, "copies.attachments" : null,"failures.copies.attachments.doneTrying" : {"$ne" : true}});'
+
+fi

snap-src/bin/mongodb-migrate

@@ -1,876 +0,0 @@
-#!/bin/bash
-
-# MongoDB Migration Script from version 3 to 7
-# This script handles migration with disk space checks, progress tracking, and error handling
-#
-# IMPORTANT: Migration is only triggered when MIGRATE_MONGODB=true environment variable is set
-# IMPORTANT: All operations are contained within SNAP_COMMON directory
-# IMPORTANT: No snap settings or channel changes are made during migration
-# This is the only writable directory in a snap environment
-
-set -e
-
-# Source settings
-source $SNAP/bin/wekan-read-settings
-
-# Migration configuration
-MIGRATION_LOG="${SNAP_COMMON}/mongodb-migration-log.txt"
-MIGRATION_STATUS="${SNAP_COMMON}/mongodb-migration-status.json"
-MIGRATION_PROGRESS="${SNAP_COMMON}/mongodb-migration-progress.html"
-REVERT_FILE="${SNAP_COMMON}/revert-mongodb-migration.txt"
-TEMP_DIR="${SNAP_COMMON}/mongodb-migration-temp"
-BACKUP_DIR="${SNAP_COMMON}/mongodb-backup-$(date +%Y%m%d-%H%M%S)"
-
-# MongoDB paths
-MONGO3_BIN="/snap/${SNAP_NAME}/current/migratemongo/bin"
-MONGO7_BIN="/snap/${SNAP_NAME}/current/bin"
-MONGO3_LIB="/snap/${SNAP_NAME}/current/migratemongo/lib"
-MONGO7_LIB="/snap/${SNAP_NAME}/current/usr/lib"
-
-# Set up environment for MongoDB 3 tools
-export LD_LIBRARY_PATH="${MONGO3_LIB}:${MONGO3_LIB}/x86_64-linux-gnu:${LD_LIBRARY_PATH}"
-export PATH="${MONGO3_BIN}:${MONGO7_BIN}:${PATH}"
-
-# Set MongoDB log destination to snapcommon for log file detection
-export MONGO_LOG_DESTINATION="snapcommon"
-
-# Validate that all operations are within SNAP_COMMON
-validate_snap_common_path() {
-    local path="$1"
-    local description="$2"
-
-    if [[ "$path" != "${SNAP_COMMON}"* ]]; then
-        log_error "Path outside SNAP_COMMON detected: $path ($description)"
-        log_error "SNAP_COMMON: $SNAP_COMMON"
-        return 1
-    fi
-    return 0
-}
-
-# Validate all critical paths
-validate_all_paths() {
-    log_message "Validating all paths are within SNAP_COMMON"
-
-    validate_snap_common_path "$MIGRATION_LOG" "Migration log" || return 1
-    validate_snap_common_path "$MIGRATION_STATUS" "Migration status" || return 1
-    validate_snap_common_path "$MIGRATION_PROGRESS" "Migration progress" || return 1
-    validate_snap_common_path "$REVERT_FILE" "Revert file" || return 1
-    validate_snap_common_path "$TEMP_DIR" "Temporary directory" || return 1
-    validate_snap_common_path "$BACKUP_DIR" "Backup directory" || return 1
-
-    log_success "All paths validated within SNAP_COMMON"
-    return 0
-}
-
-# Logging functions
-log_message() {
-    local message="$1"
-    local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
-    echo "[$timestamp] $message" | tee -a "$MIGRATION_LOG"
-}
-
-log_error() {
-    local message="$1"
-    log_message "ERROR: $message"
-}
-
-log_success() {
-    local message="$1"
-    log_message "SUCCESS: $message"
-}
-
-log_warning() {
-    local message="$1"
-    log_message "WARNING: $message"
-}
-
-# Disk space checking functions
-check_disk_space() {
-    local required_space_gb="$1"
-    local available_space_gb=$(df "$SNAP_COMMON" | awk 'NR==2 {print int($4/1024/1024)}')
-
-    if [ "$available_space_gb" -lt "$required_space_gb" ]; then
-        log_error "Insufficient disk space. Required: ${required_space_gb}GB, Available: ${available_space_gb}GB"
-        return 1
-    fi
-
-    log_message "Disk space check passed. Available: ${available_space_gb}GB, Required: ${required_space_gb}GB"
-    return 0
-}
-
-# Progress tracking functions
-update_progress() {
-    local step="$1"
-    local total_steps="$2"
-    local description="$3"
-    local percentage=$((step * 100 / total_steps))
-
-    # Update JSON status file
-    cat > "$MIGRATION_STATUS" << EOF
-{
-    "step": $step,
-    "total_steps": $total_steps,
-    "percentage": $percentage,
-    "description": "$description",
-    "timestamp": "$(date -Iseconds)",
-    "status": "running"
-}
-EOF
-
-    # Update HTML progress page
-    cat > "$MIGRATION_PROGRESS" << EOF
-<!DOCTYPE html>
-<html>
-<head>
-    <title>MongoDB Migration Progress</title>
-    <meta http-equiv="refresh" content="5">
-    <style>
-        body { font-family: Arial, sans-serif; margin: 40px; }
-        .progress-bar { width: 100%; background-color: #f0f0f0; border-radius: 5px; }
-        .progress-fill { height: 30px; background-color: #4CAF50; border-radius: 5px; width: ${percentage}%; }
-        .status { margin: 20px 0; }
-        .error { color: red; }
-        .success { color: green; }
-    </style>
-</head>
-<body>
-    <h1>MongoDB Migration Progress</h1>
-    <div class="progress-bar">
-        <div class="progress-fill"></div>
-    </div>
-    <div class="status">
-        <p><strong>Progress:</strong> $step of $total_steps steps ($percentage%)</p>
-        <p><strong>Current Step:</strong> $description</p>
-        <p><strong>Last Updated:</strong> $(date)</p>
-    </div>
-    <p><em>This page will refresh automatically every 5 seconds.</em></p>
-</body>
-</html>
-EOF
-
-    log_message "Progress: $step/$total_steps ($percentage%) - $description"
-}
-
-# Estimate completion time
-estimate_completion_time() {
-    local start_time="$1"
-    local current_step="$2"
-    local total_steps="$3"
-
-    if [ "$current_step" -gt 0 ]; then
-        local elapsed=$(($(date +%s) - start_time))
-        local avg_time_per_step=$((elapsed / current_step))
-        local remaining_steps=$((total_steps - current_step))
-        local estimated_remaining=$((remaining_steps * avg_time_per_step))
-
-        local hours=$((estimated_remaining / 3600))
-        local minutes=$(((estimated_remaining % 3600) / 60))
-        local seconds=$((estimated_remaining % 60))
-
-        echo "${hours}h ${minutes}m ${seconds}s"
-    else
-        echo "Calculating..."
-    fi
-}
-
-# Create backup before migration
-create_backup() {
-    log_message "Creating backup of MongoDB 3 database"
-
-    # Check disk space for backup (estimate 2x current database size)
-    local db_size=$(du -s "${SNAP_COMMON}/wekan" 2>/dev/null | awk '{print $1}' || echo "0")
-    local required_space=$((db_size * 2 / 1024 / 1024 + 1)) # Convert to GB and add 1GB buffer
-
-    if ! check_disk_space "$required_space"; then
-        log_error "Insufficient disk space for backup"
-        return 1
-    fi
-
-    # Create backup directory
-    mkdir -p "$BACKUP_DIR"
-
-    # Copy database files
-    if [ -d "${SNAP_COMMON}/wekan" ]; then
-        cp -r "${SNAP_COMMON}/wekan" "$BACKUP_DIR/"
-        log_success "Database backup created at $BACKUP_DIR"
-        return 0
-    else
-        log_error "No database found to backup"
-        return 1
-    fi
-}
-
-# Check if migration is needed
-check_migration_needed() {
-    if [ -f "$MIGRATION_STATUS" ]; then
-        local status=$(jq -r '.status' "$MIGRATION_STATUS" 2>/dev/null || echo "unknown")
-        if [ "$status" = "completed" ]; then
-            log_message "Migration already completed"
-            return 1
-        elif [ "$status" = "running" ]; then
-            log_message "Migration already in progress"
-            return 0
-        fi
-    fi
-
-    # Check if we have MongoDB 3 data (either in wekan directory or raw database files)
-    if [ -d "${SNAP_COMMON}/wekan" ] && [ ! -f "${SNAP_COMMON}/mongodb-version-7" ]; then
-        log_message "MongoDB 3 data detected in wekan directory"
-        return 0
-    fi
-
-    # Check for MongoDB upgrade needed by examining log file
-    if detect_mongodb_upgrade_needed; then
-        log_message "MongoDB upgrade needed detected from log file"
-        return 0
-    fi
-
-    log_message "No migration needed"
-    return 1
-}
-
-# Display MongoDB log content for debugging
-display_mongodb_log_content() {
-    local mongodb_log="${SNAP_COMMON}/mongodb.log"
-    
-    if [ ! -f "$mongodb_log" ]; then
-        log_message "MongoDB log file not found: $mongodb_log"
-        return 1
-    fi
-    
-    log_message "MongoDB log file content (last 50 lines):"
-    if [ -r "$mongodb_log" ]; then
-        tail -50 "$mongodb_log" | while read -r line; do
-            log_message "LOG: $line"
-        done
-    else
-        log_message "MongoDB log file not readable, trying with sudo"
-        sudo tail -50 "$mongodb_log" 2>/dev/null | while read -r line; do
-            log_message "LOG: $line"
-        done
-    fi
-}
-
-# Detect if MongoDB upgrade is needed by checking log file
-detect_mongodb_upgrade_needed() {
-    local mongodb_log="${SNAP_COMMON}/mongodb.log"
-    
-    # Check if MongoDB log file exists
-    if [ ! -f "$mongodb_log" ]; then
-        log_message "MongoDB log file not found: $mongodb_log"
-        return 1
-    fi
-    
-    # Display log content for debugging
-    display_mongodb_log_content
-    
-    # Check file permissions and try to read with appropriate method
-    if [ ! -r "$mongodb_log" ]; then
-        log_message "MongoDB log file not readable, trying with sudo"
-        # Try to read with sudo if not readable
-        if ! sudo grep -q "too recent to start up on the existing data files" "$mongodb_log" 2>/dev/null; then
-            log_message "No MongoDB upgrade needed detected in log file (via sudo)"
-            return 1
-        fi
-    else
-        # Check for various error messages that indicate upgrade is needed
-        # The exact message may vary between MongoDB versions
-        local upgrade_patterns=(
-            "This version of MongoDB is too recent to start up on the existing data files"
-            "too recent to start up on the existing data files"
-            "Try MongoDB 4.2 or earlier"
-            "unsupported format version"
-            "data files are incompatible"
-            "database files are incompatible"
-            "version too new"
-            "version too recent"
-        )
-        
-        local found_upgrade_needed=false
-        for pattern in "${upgrade_patterns[@]}"; do
-            if grep -q "$pattern" "$mongodb_log" 2>/dev/null; then
-                log_message "Found upgrade pattern in log: '$pattern'"
-                found_upgrade_needed=true
-                break
-            fi
-        done
-        
-        if [ "$found_upgrade_needed" = false ]; then
-            log_message "No MongoDB upgrade needed detected in log file"
-            return 1
-        fi
-    fi
-    
-    log_message "MongoDB upgrade needed detected in log file"
-    return 0
-}
-
-# Log rotation function for MongoDB logs
-rotate_mongodb_logs() {
-    local mongodb_log="${SNAP_COMMON}/mongodb.log"
-    local max_size_mb=100
-    local keep_copies=10
-    
-    # Check if log file exists and is large enough to rotate
-    if [ ! -f "$mongodb_log" ]; then
-        log_message "MongoDB log file not found, skipping rotation"
-        return 0
-    fi
-    
-    # Get log file size in MB
-    local log_size_mb=$(du -m "$mongodb_log" | cut -f1)
-    
-    if [ "$log_size_mb" -lt "$max_size_mb" ]; then
-        log_message "MongoDB log size (${log_size_mb}MB) is below rotation threshold (${max_size_mb}MB)"
-        return 0
-    fi
-    
-    log_message "Rotating MongoDB log file (size: ${log_size_mb}MB)"
-    
-    # Create rotated log file with timestamp
-    local timestamp=$(date +%Y%m%d-%H%M%S)
-    local rotated_log="${mongodb_log}.${timestamp}"
-    
-    # Copy current log to rotated file
-    if cp "$mongodb_log" "$rotated_log"; then
-        log_message "Created rotated log file: $rotated_log"
-        
-        # Truncate original log file
-        if > "$mongodb_log"; then
-            log_message "Truncated original log file"
-        else
-            log_error "Failed to truncate original log file"
-            return 1
-        fi
-        
-        # Compress rotated log file
-        if gzip "$rotated_log"; then
-            log_message "Compressed rotated log file: ${rotated_log}.gz"
-        else
-            log_warning "Failed to compress rotated log file"
-        fi
-        
-        # Clean up old rotated logs (keep only specified number)
-        local old_logs=$(ls -t "${mongodb_log}".* 2>/dev/null | tail -n +$((keep_copies + 1)))
-        if [ -n "$old_logs" ]; then
-            echo "$old_logs" | xargs rm -f
-            log_message "Cleaned up old rotated log files"
-        fi
-        
-        log_success "MongoDB log rotation completed successfully"
-        return 0
-    else
-        log_error "Failed to create rotated log file"
-        return 1
-    fi
-}
-
-# Enhanced log rotation function for migration logs
-rotate_migration_logs() {
-    local migration_log="${SNAP_COMMON}/mongodb-migration-log.txt"
-    local max_size_mb=50
-    local keep_copies=5
-    
-    # Check if migration log file exists and is large enough to rotate
-    if [ ! -f "$migration_log" ]; then
-        log_message "Migration log file not found, skipping rotation"
-        return 0
-    fi
-    
-    # Get log file size in MB
-    local log_size_mb=$(du -m "$migration_log" | cut -f1)
-    
-    if [ "$log_size_mb" -lt "$max_size_mb" ]; then
-        log_message "Migration log size (${log_size_mb}MB) is below rotation threshold (${max_size_mb}MB)"
-        return 0
-    fi
-    
-    log_message "Rotating migration log file (size: ${log_size_mb}MB)"
-    
-    # Create rotated log file with timestamp
-    local timestamp=$(date +%Y%m%d-%H%M%S)
-    local rotated_log="${migration_log}.${timestamp}"
-    
-    # Copy current log to rotated file
-    if cp "$migration_log" "$rotated_log"; then
-        log_message "Created rotated migration log file: $rotated_log"
-        
-        # Truncate original log file
-        if > "$migration_log"; then
-            log_message "Truncated original migration log file"
-        else
-            log_error "Failed to truncate original migration log file"
-            return 1
-        fi
-        
-        # Compress rotated log file
-        if gzip "$rotated_log"; then
-            log_message "Compressed rotated migration log file: ${rotated_log}.gz"
-        else
-            log_warning "Failed to compress rotated migration log file"
-        fi
-        
-        # Clean up old rotated logs (keep only specified number)
-        local old_logs=$(ls -t "${migration_log}".* 2>/dev/null | tail -n +$((keep_copies + 1)))
-        if [ -n "$old_logs" ]; then
-            echo "$old_logs" | xargs rm -f
-            log_message "Cleaned up old rotated migration log files"
-        fi
-        
-        log_success "Migration log rotation completed successfully"
-        return 0
-    else
-        log_error "Failed to create rotated migration log file"
-        return 1
-    fi
-}
-
-# Reset MONGO_LOG_DESTINATION to devnull after successful migration - DISABLED
-# Snap settings changes are permanently disabled during migration
-reset_mongo_log_destination() {
-    log_message "MONGO_LOG_DESTINATION reset disabled - snap settings changes not allowed during migration"
-    
-    # Snap settings changes permanently disabled during migration
-    # This ensures no snap configuration is modified during the migration process
-    # if snap set wekan mongo-log-destination="devnull" 2>/dev/null; then
-    #     log_success "MONGO_LOG_DESTINATION reset to devnull successfully"
-    # else
-    #     log_error "Failed to reset MONGO_LOG_DESTINATION to devnull"
-    #     # Don't fail the migration for this setting issue
-    # fi
-}
-
-# Migrate raw MongoDB 3 database files
-migrate_raw_database_files() {
-    log_message "Starting raw MongoDB 3 database files migration"
-
-    # Validate paths are within SNAP_COMMON
-    if ! validate_snap_common_path "${SNAP_COMMON}" "Database path"; then
-        log_error "Database path validation failed"
-        return 1
-    fi
-
-    # Stop any running MongoDB processes
-    log_message "Stopping any running MongoDB processes"
-    pkill -f mongod || true
-    sleep 3
-
-    # Start MongoDB 3 with raw files
-    log_message "Starting MongoDB 3 with raw database files"
-    local mongo3_pid
-    mongod --dbpath "${SNAP_COMMON}" --port "${MONGODB_PORT:-27019}" --quiet &
-    mongo3_pid=$!
-
-    # Wait for MongoDB 3 to start
-    local retry_count=0
-    while [ $retry_count -lt 30 ]; do
-        if mongosh --quiet --eval "db.adminCommand('ping')" "mongodb://localhost:${MONGODB_PORT:-27019}/admin" >/dev/null 2>&1; then
-            log_message "MongoDB 3 started successfully"
-            break
-        fi
-        sleep 1
-        retry_count=$((retry_count + 1))
-    done
-
-    if [ $retry_count -eq 30 ]; then
-        log_error "MongoDB 3 failed to start"
-        kill $mongo3_pid 2>/dev/null || true
-        return 1
-    fi
-
-    # Dump all databases from MongoDB 3
-    log_message "Dumping databases from MongoDB 3"
-    if ! mongodump --port "${MONGODB_PORT:-27019}" --out "$TEMP_DIR" --dbpath "${SNAP_COMMON}"; then
-        log_error "Failed to dump databases from MongoDB 3"
-        kill $mongo3_pid 2>/dev/null || true
-        return 1
-    fi
-
-    # Stop MongoDB 3
-    log_message "Stopping MongoDB 3"
-    kill $mongo3_pid 2>/dev/null || true
-    sleep 3
-
-    # Start MongoDB 7
-    log_message "Starting MongoDB 7"
-    local mongo7_pid
-    mongod --dbpath "${SNAP_COMMON}" --port "${MONGODB_PORT:-27019}" --quiet &
-    mongo7_pid=$!
-
-    # Wait for MongoDB 7 to start
-    retry_count=0
-    while [ $retry_count -lt 30 ]; do
-        if mongosh --quiet --eval "db.adminCommand('ping')" "mongodb://localhost:${MONGODB_PORT:-27019}/admin" >/dev/null 2>&1; then
-            log_message "MongoDB 7 started successfully"
-            break
-        fi
-        sleep 1
-        retry_count=$((retry_count + 1))
-    done
-
-    if [ $retry_count -eq 30 ]; then
-        log_error "MongoDB 7 failed to start"
-        kill $mongo7_pid 2>/dev/null || true
-        return 1
-    fi
-
-    # Restore databases to MongoDB 7
-    log_message "Restoring databases to MongoDB 7"
-    if ! mongorestore --port "${MONGODB_PORT:-27019}" --dbpath "${SNAP_COMMON}" "$TEMP_DIR"; then
-        log_error "Failed to restore databases to MongoDB 7"
-        kill $mongo7_pid 2>/dev/null || true
-        return 1
-    fi
-
-    # Stop MongoDB 7
-    log_message "Stopping MongoDB 7"
-    kill $mongo7_pid 2>/dev/null || true
-    sleep 3
-
-    # Clean up old MongoDB 3 files
-    log_message "Cleaning up old MongoDB 3 files"
-    find "${SNAP_COMMON}" -maxdepth 1 -name "*.0" -o -name "*.1" -o -name "*.ns" -o -name "j._*" -o -name "mongod.lock" | while read -r file; do
-        if [ -f "$file" ]; then
-            rm -f "$file"
-            log_message "Removed old file: $file"
-        fi
-    done
-
-    # Remove journal directory if it exists
-    if [ -d "${SNAP_COMMON}/journal" ]; then
-        rm -rf "${SNAP_COMMON}/journal"
-        log_message "Removed journal directory"
-    fi
-
-    log_success "Raw database files migration completed successfully"
-    
-    # Reset MONGO_LOG_DESTINATION to devnull after successful migration
-    reset_mongo_log_destination
-    
-    return 0
-}
-
-# Snap channel detection and switching functions
-get_current_snap_channel() {
-    local snap_name="$1"
-    snap list "$snap_name" 2>/dev/null | awk 'NR==2 {print $4}' || echo "unknown"
-}
-
-is_wekan_snap() {
-    local snap_name="$1"
-    case "$snap_name" in
-        wekan|wekan-gantt-gpl|wekan-ondra)
-            return 0
-            ;;
-        *)
-            return 1
-            ;;
-    esac
-}
-
-switch_to_stable_channel() {
-    local snap_name="$1"
-    local current_channel=$(get_current_snap_channel "$snap_name")
-
-    log_message "Snap channel switching disabled - not changing $snap_name channel (currently: $current_channel)"
-    log_message "Snap channel changes are permanently disabled during migration"
-    return 0
-    
-    # Snap channel switching permanently disabled during migration
-    # This ensures no snap channels are modified during the migration process
-    # if [ "$current_channel" != "stable" ] && [ "$current_channel" != "unknown" ]; then
-    #     log_message "Switching $snap_name from $current_channel to stable channel"
-    #     if snap refresh "$snap_name" --channel=stable; then
-    #         log_success "Successfully switched $snap_name to stable channel"
-    #         return 0
-    #     else
-    #         log_error "Failed to switch $snap_name to stable channel"
-    #         return 1
-    #     fi
-    # else
-    #     log_message "$snap_name is already on stable channel or not installed"
-    #     return 0
-    # fi
-}
-
-switch_all_wekan_snaps_to_stable() {
-    log_message "Checking for Wekan-related snaps to switch to stable channel"
-
-    local wekan_snaps=("wekan" "wekan-gantt-gpl" "wekan-ondra")
-    local switched_count=0
-    local failed_count=0
-
-    for snap_name in "${wekan_snaps[@]}"; do
-        if snap list "$snap_name" >/dev/null 2>&1; then
-            if switch_to_stable_channel "$snap_name"; then
-                switched_count=$((switched_count + 1))
-            else
-                failed_count=$((failed_count + 1))
-            fi
-        fi
-    done
-
-    log_message "Channel switching completed: $switched_count successful, $failed_count failed"
-
-    if [ "$failed_count" -gt 0 ]; then
-        return 1
-    else
-        return 0
-    fi
-}
-
-# Get database collections
-get_collections() {
-    local mongo_url="$1"
-    local collections=$(mongosh --quiet --eval "db.getCollectionNames().join('\n')" "$mongo_url" 2>/dev/null | grep -v "^$" || echo "")
-    echo "$collections"
-}
-
-# Migrate a single collection
-migrate_collection() {
-    local collection="$1"
-    local mongo3_url="$2"
-    local mongo7_url="$3"
-    local step="$4"
-    local total_steps="$5"
-
-    log_message "Migrating collection: $collection"
-
-    # Check disk space before each collection (estimate 2x collection size)
-    local collection_size=$(mongosh --quiet --eval "db.$collection.stats().size" "$mongo3_url" 2>/dev/null || echo "0")
-    local required_space=$((collection_size * 2 / 1024 / 1024 / 1024 + 1)) # Convert to GB and add 1GB buffer
-
-    if ! check_disk_space "$required_space"; then
-        log_error "Insufficient disk space for collection $collection"
-        return 1
-    fi
-
-    # Dump collection
-    local dump_file="${TEMP_DIR}/${collection}.bson"
-    log_message "Dumping collection $collection to $dump_file"
-
-    if ! mongodump --db wekan --collection "$collection" --out "$TEMP_DIR" --port "${MONGODB_PORT:-27019}" --dbpath "${SNAP_COMMON}"; then
-        log_error "Failed to dump collection $collection"
-        return 1
-    fi
-
-    # Restore collection
-    log_message "Restoring collection $collection to MongoDB 7"
-    if ! mongorestore --db wekan --collection "$collection" "$dump_file" --port "${MONGODB_PORT:-27019}" --dbpath "${SNAP_COMMON}"; then
-        log_error "Failed to restore collection $collection"
-        return 1
-    fi
-
-    # Update progress
-    update_progress "$step" "$total_steps" "Migrated collection: $collection"
-
-    # Clean up dump file
-    rm -f "$dump_file"
-
-    log_success "Collection $collection migrated successfully"
-    return 0
-}
-
-# Main migration function
-perform_migration() {
-    local start_time=$(date +%s)
-
-    log_message "Starting MongoDB migration from version 3 to 7"
-
-    # Rotate MongoDB logs before migration if needed
-    log_message "Checking if MongoDB log rotation is needed"
-    if ! rotate_mongodb_logs; then
-        log_warning "MongoDB log rotation failed, continuing with migration"
-    fi
-    
-    # Rotate migration logs before migration if needed
-    log_message "Checking if migration log rotation is needed"
-    if ! rotate_migration_logs; then
-        log_warning "Migration log rotation failed, continuing with migration"
-    fi
-
-    # Create backup before migration
-    log_message "Creating backup before migration"
-    if ! create_backup; then
-        log_error "Failed to create backup, aborting migration"
-        return 1
-    fi
-
-    # Create temporary directory
-    mkdir -p "$TEMP_DIR"
-
-    # Check if we need to migrate raw database files
-    if detect_mongodb_upgrade_needed; then
-        log_message "MongoDB upgrade needed detected, starting raw file migration"
-        if ! migrate_raw_database_files; then
-            log_error "Failed to migrate raw database files"
-            return 1
-        fi
-    fi
-
-    # Get MongoDB connection details
-    local mongo3_url="mongodb://localhost:${MONGODB_PORT:-27019}/wekan"
-    local mongo7_url="mongodb://localhost:${MONGODB_PORT:-27019}/wekan"
-
-    # Get collections to migrate
-    log_message "Getting list of collections to migrate"
-    local collections=$(get_collections "$mongo3_url")
-
-    if [ -z "$collections" ]; then
-        log_error "No collections found to migrate"
-        return 1
-    fi
-
-    local collection_count=$(echo "$collections" | wc -l)
-    log_message "Found $collection_count collections to migrate"
-
-    # Migrate each collection
-    local current_step=0
-    for collection in $collections; do
-        current_step=$((current_step + 1))
-
-        if ! migrate_collection "$collection" "$mongo3_url" "$mongo7_url" "$current_step" "$collection_count"; then
-            log_error "Migration failed at collection $collection"
-            return 1
-        fi
-
-        # Update completion time estimate
-        local estimated_time=$(estimate_completion_time "$start_time" "$current_step" "$collection_count")
-        log_message "Estimated completion time: $estimated_time"
-    done
-
-    # Mark migration as completed
-    cat > "$MIGRATION_STATUS" << EOF
-{
-    "step": $collection_count,
-    "total_steps": $collection_count,
-    "percentage": 100,
-    "description": "Migration completed successfully",
-    "timestamp": "$(date -Iseconds)",
-    "status": "completed"
-}
-EOF
-
-    # Create MongoDB 7 version marker
-    touch "${SNAP_COMMON}/mongodb-version-7"
-
-    # Clean up temporary files
-    rm -rf "$TEMP_DIR"
-
-    # Switch Wekan snaps to stable channel after successful migration
-    log_message "Switching Wekan snaps to stable channel after successful migration"
-    if switch_all_wekan_snaps_to_stable; then
-        log_success "All Wekan snaps switched to stable channel successfully"
-    else
-        log_error "Some Wekan snaps failed to switch to stable channel"
-        # Don't fail the migration for channel switching issues
-    fi
-
-    log_success "MongoDB migration completed successfully"
-    
-    # Rotate MongoDB logs after successful migration
-    log_message "Rotating MongoDB logs after successful migration"
-    if ! rotate_mongodb_logs; then
-        log_warning "MongoDB log rotation after migration failed"
-    fi
-    
-    # Rotate migration logs after successful migration
-    log_message "Rotating migration logs after successful migration"
-    if ! rotate_migration_logs; then
-        log_warning "Migration log rotation after migration failed"
-    fi
-    
-    # Reset MONGO_LOG_DESTINATION to devnull after successful migration
-    reset_mongo_log_destination
-    
-    return 0
-}
-
-# Revert migration
-revert_migration() {
-    log_message "Reverting MongoDB migration"
-
-    if [ ! -f "$REVERT_FILE" ]; then
-        log_error "Revert file not found: $REVERT_FILE"
-        return 1
-    fi
-
-    # Stop MongoDB 7 - DISABLED
-    log_message "MongoDB stopping disabled - not using snapctl stop"
-    # snapctl stop --disable "${SNAP_NAME}.mongodb"
-
-    # Remove MongoDB 7 version marker
-    rm -f "${SNAP_COMMON}/mongodb-version-7"
-
-    # Find the most recent backup directory
-    local latest_backup=$(ls -td "${SNAP_COMMON}/mongodb-backup-"* 2>/dev/null | head -1)
-
-    if [ -n "$latest_backup" ] && [ -d "$latest_backup" ]; then
-        log_message "Restoring from backup: $latest_backup"
-
-        # Stop any running MongoDB processes
-        pkill -f mongod || true
-        sleep 2
-
-        # Remove current database directory
-        rm -rf "${SNAP_COMMON}/wekan"
-
-        # Restore from backup
-        cp -r "$latest_backup"/* "${SNAP_COMMON}/"
-
-        # Clean up backup directory
-        rm -rf "$latest_backup"
-
-        log_success "Database restored from backup"
-    else
-        log_error "No backup found for revert"
-        return 1
-    fi
-
-    # Remove revert file
-    rm -f "$REVERT_FILE"
-
-    # Clear migration status
-    rm -f "$MIGRATION_STATUS"
-
-    # Start MongoDB 3 - DISABLED
-    log_message "MongoDB starting disabled - not using snapctl start"
-    # snapctl start --enable "${SNAP_NAME}.mongodb"
-
-    log_success "Migration reverted successfully"
-    return 0
-}
-
-# Main execution
-main() {
-    log_message "MongoDB Migration Script started"
-
-    # Validate all paths are within SNAP_COMMON
-    if ! validate_all_paths; then
-        log_error "Path validation failed - aborting migration"
-        exit 1
-    fi
-
-    # Check if revert is requested
-    if [ -f "$REVERT_FILE" ]; then
-        revert_migration
-        exit $?
-    fi
-
-    # Check if migration is needed
-    if ! check_migration_needed; then
-        exit 0
-    fi
-
-    # Perform migration
-    if perform_migration; then
-        log_success "Migration completed successfully"
-        exit 0
-    else
-        log_error "Migration failed"
-        exit 1
-    fi
-}
-
-# Run main function
-main "$@"

snap-src/bin/mongodb-migration-status

@@ -1,126 +0,0 @@
-#!/bin/bash
-
-# MongoDB Migration Status Script
-# Provides status information about the migration process
-
-# Source settings
-source $SNAP/bin/wekan-read-settings
-
-# Configuration
-MIGRATION_STATUS="${SNAP_COMMON}/mongodb-migration-status.json"
-MIGRATION_LOG="${SNAP_COMMON}/mongodb-migration-log.txt"
-REVERT_FILE="${SNAP_COMMON}/revert-mongodb-migration.txt"
-
-# Show migration status
-show_status() {
-    if [ -f "$MIGRATION_STATUS" ]; then
-        echo "=== MongoDB Migration Status ==="
-        echo "Status: $(jq -r '.status' "$MIGRATION_STATUS" 2>/dev/null || echo "unknown")"
-        echo "Progress: $(jq -r '.step' "$MIGRATION_STATUS" 2>/dev/null || echo "0")/$(jq -r '.total_steps' "$MIGRATION_STATUS" 2>/dev/null || echo "0") steps"
-        echo "Percentage: $(jq -r '.percentage' "$MIGRATION_STATUS" 2>/dev/null || echo "0")%"
-        echo "Current Step: $(jq -r '.description' "$MIGRATION_STATUS" 2>/dev/null || echo "Unknown")"
-        echo "Last Updated: $(jq -r '.timestamp' "$MIGRATION_STATUS" 2>/dev/null || echo "Unknown")"
-        echo ""
-
-        if [ -f "$MIGRATION_LOG" ]; then
-            echo "=== Recent Migration Log ==="
-            tail -10 "$MIGRATION_LOG"
-        fi
-    else
-        echo "No migration in progress or completed."
-    fi
-}
-
-# Show migration log
-show_log() {
-    if [ -f "$MIGRATION_LOG" ]; then
-        echo "=== Full Migration Log ==="
-        cat "$MIGRATION_LOG"
-    else
-        echo "No migration log found."
-    fi
-}
-
-# Check if migration is needed
-check_needed() {
-    if [ -d "${SNAP_COMMON}/wekan" ] && [ ! -f "${SNAP_COMMON}/mongodb-version-7" ]; then
-        echo "Migration needed: MongoDB 3 data detected"
-        return 0
-    else
-        echo "No migration needed"
-        return 1
-    fi
-}
-
-# Start migration
-start_migration() {
-    if check_needed; then
-        echo "Starting MongoDB migration..."
-        $SNAP/bin/mongodb-migrate
-    else
-        echo "Migration not needed or already completed"
-    fi
-}
-
-# Request revert
-request_revert() {
-    echo "Requesting migration revert..."
-    touch "$REVERT_FILE"
-    echo "Revert requested. Restart Wekan to apply revert."
-}
-
-# Clear migration status
-clear_status() {
-    echo "Clearing migration status..."
-    rm -f "$MIGRATION_STATUS"
-    rm -f "$MIGRATION_LOG"
-    rm -f "$REVERT_FILE"
-    echo "Migration status cleared."
-}
-
-# Show help
-show_help() {
-    echo "MongoDB Migration Status Tool"
-    echo ""
-    echo "Usage: $0 [command]"
-    echo ""
-    echo "Commands:"
-    echo "  status    - Show current migration status (default)"
-    echo "  log       - Show full migration log"
-    echo "  check     - Check if migration is needed"
-    echo "  start     - Start migration if needed"
-    echo "  revert    - Request migration revert"
-    echo "  clear     - Clear migration status"
-    echo "  help      - Show this help"
-    echo ""
-}
-
-# Main execution
-case "${1:-status}" in
-    "status")
-        show_status
-        ;;
-    "log")
-        show_log
-        ;;
-    "check")
-        check_needed
-        ;;
-    "start")
-        start_migration
-        ;;
-    "revert")
-        request_revert
-        ;;
-    "clear")
-        clear_status
-        ;;
-    "help"|"-h"|"--help")
-        show_help
-        ;;
-    *)
-        echo "Unknown command: $1"
-        show_help
-        exit 1
-        ;;
-esac

snap-src/bin/mongodb-migration-web

@@ -1,251 +0,0 @@
-#!/bin/bash
-
-# MongoDB Migration Web Interface
-# Serves migration progress at ROOT_URL/migration-progress using Node.js
-
-# Source settings
-source $SNAP/bin/wekan-read-settings
-
-# Set up Node.js environment like wekan-control
-export NODE_PATH=$SNAP/bin
-
-# Configuration
-MIGRATION_STATUS="${SNAP_COMMON}/mongodb-migration-status.json"
-MIGRATION_LOG="${SNAP_COMMON}/mongodb-migration-log.txt"
-MIGRATION_PROGRESS="${SNAP_COMMON}/mongodb-migration-progress.html"
-# Use same PORT as wekan-control, but add 1 to avoid conflicts
-MIGRATION_PORT=$((PORT + 1))
-
-# Create Node.js HTTP server script
-create_node_server() {
-    cat > "${SNAP_COMMON}/migration-web-server.js" << 'EOF'
-const http = require('http');
-const fs = require('fs');
-const path = require('path');
-
-const PORT = process.env.MIGRATION_PORT || 8081;
-const SNAP_COMMON = process.env.SNAP_COMMON;
-const ROOT_URL = process.env.ROOT_URL || 'http://127.0.0.1';
-const MIGRATION_STATUS = path.join(SNAP_COMMON, 'mongodb-migration-status.json');
-const MIGRATION_LOG = path.join(SNAP_COMMON, 'mongodb-migration-log.txt');
-
-function readFileSafe(filePath) {
-    try {
-        return fs.readFileSync(filePath, 'utf8');
-    } catch (error) {
-        return null;
-    }
-}
-
-function getMigrationStatus() {
-    const statusContent = readFileSafe(MIGRATION_STATUS);
-    if (!statusContent) {
-        return null;
-    }
-    
-    try {
-        return JSON.parse(statusContent);
-    } catch (error) {
-        return null;
-    }
-}
-
-function getMigrationLog() {
-    const logContent = readFileSafe(MIGRATION_LOG);
-    if (!logContent) {
-        return 'No log available';
-    }
-    
-    const lines = logContent.split('\n');
-    return lines.slice(-20).join('\n');
-}
-
-function generateHTML(status) {
-    if (!status) {
-        return `<!DOCTYPE html>
-<html>
-<head>
-    <title>MongoDB Migration Progress</title>
-    <meta http-equiv="refresh" content="5">
-    <style>
-        body { font-family: Arial, sans-serif; margin: 40px; }
-        .container { max-width: 800px; margin: 0 auto; text-align: center; }
-    </style>
-</head>
-<body>
-    <div class="container">
-        <h1>MongoDB Migration</h1>
-        <p>No migration in progress.</p>
-        <p><em>This page will refresh automatically every 5 seconds.</em></p>
-    </div>
-</body>
-</html>`;
-    }
-
-    const { status: statusValue, step, total_steps, percentage, description, timestamp } = status;
-    const logContent = getMigrationLog();
-
-    return `<!DOCTYPE html>
-<html>
-<head>
-    <title>MongoDB Migration Progress</title>
-    <meta http-equiv="refresh" content="5">
-    <style>
-        body {
-            font-family: Arial, sans-serif;
-            margin: 40px;
-            background-color: #f5f5f5;
-        }
-        .container {
-            max-width: 800px;
-            margin: 0 auto;
-            background: white;
-            padding: 30px;
-            border-radius: 10px;
-            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
-        }
-        .progress-bar {
-            width: 100%;
-            background-color: #e0e0e0;
-            border-radius: 10px;
-            overflow: hidden;
-            margin: 20px 0;
-        }
-        .progress-fill {
-            height: 40px;
-            background: linear-gradient(90deg, #4CAF50, #45a049);
-            border-radius: 10px;
-            width: ${percentage}%;
-            transition: width 0.3s ease;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            color: white;
-            font-weight: bold;
-        }
-        .status {
-            margin: 20px 0;
-            padding: 20px;
-            background-color: #f9f9f9;
-            border-radius: 5px;
-        }
-        .error { color: #d32f2f; }
-        .success { color: #388e3c; }
-        .warning { color: #f57c00; }
-        .info { color: #1976d2; }
-        .log-container {
-            margin-top: 30px;
-            max-height: 300px;
-            overflow-y: auto;
-            background-color: #f5f5f5;
-            padding: 15px;
-            border-radius: 5px;
-            font-family: monospace;
-            font-size: 12px;
-        }
-        .header {
-            text-align: center;
-            margin-bottom: 30px;
-        }
-        .status-indicator {
-            display: inline-block;
-            width: 12px;
-            height: 12px;
-            border-radius: 50%;
-            margin-right: 8px;
-        }
-        .status-running { background-color: #ff9800; }
-        .status-completed { background-color: #4caf50; }
-        .status-error { background-color: #f44336; }
-        .status-unknown { background-color: #9e9e9e; }
-    </style>
-</head>
-<body>
-    <div class="container">
-        <div class="header">
-            <h1>MongoDB Migration Progress</h1>
-            <p>Migrating from MongoDB 3 to MongoDB 7</p>
-        </div>
-
-        <div class="progress-bar">
-            <div class="progress-fill">${percentage}%</div>
-        </div>
-
-        <div class="status">
-            <p><span class="status-indicator status-${statusValue}"></span><strong>Status:</strong> ${statusValue}</p>
-            <p><strong>Progress:</strong> ${step} of ${total_steps} steps</p>
-            <p><strong>Current Step:</strong> ${description}</p>
-            <p><strong>Last Updated:</strong> ${timestamp}</p>
-        </div>
-
-        <div class="log-container">
-            <h3>Migration Log (Last 20 lines):</h3>
-            <pre>${logContent}</pre>
-        </div>
-
-        <p style="text-align: center; margin-top: 30px; color: #666;">
-            <em>This page will refresh automatically every 5 seconds.</em><br>
-            <em>Migration URL: ${ROOT_URL}/migration-progress</em>
-        </p>
-    </div>
-</body>
-</html>`;
-}
-
-const server = http.createServer((req, res) => {
-    if (req.url === '/migration-progress' || req.url === '/') {
-        const status = getMigrationStatus();
-        const html = generateHTML(status);
-        
-        res.writeHead(200, {
-            'Content-Type': 'text/html; charset=utf-8',
-            'Cache-Control': 'no-cache',
-            'Connection': 'close'
-        });
-        res.end(html);
-    } else {
-        res.writeHead(404, { 'Content-Type': 'text/plain' });
-        res.end('Not Found');
-    }
-});
-
-server.listen(PORT, () => {
-    console.log(`MongoDB Migration Web Server running on port ${PORT}`);
-});
-
-// Handle graceful shutdown
-process.on('SIGTERM', () => {
-    console.log('Received SIGTERM, shutting down gracefully');
-    server.close(() => {
-        process.exit(0);
-    });
-});
-
-process.on('SIGINT', () => {
-    console.log('Received SIGINT, shutting down gracefully');
-    server.close(() => {
-        process.exit(0);
-    });
-});
-EOF
-}
-
-# Start the Node.js web server
-start_node_server() {
-    echo "Starting MongoDB migration web server using Node.js..."
-    echo "Migration server will be available at: ${ROOT_URL}/migration-progress"
-    echo "Migration server port: ${MIGRATION_PORT}"
-    
-    # Create the Node.js server script
-    create_node_server
-    
-    # Export environment variables for the Node.js process
-    export MIGRATION_PORT
-    export ROOT_URL
-    
-    # Start the server using Node.js from SNAP/bin
-    $NODE_PATH/node "${SNAP_COMMON}/migration-web-server.js"
-}
-
-# Start the web server
-start_node_server

snap-src/bin/mongodb-version-manager

@@ -0,0 +1,138 @@
+#!/bin/bash
+
+# MongoDB Version Manager
+# Helps manage MongoDB server binaries for different versions (3-8)
+# This script provides utilities for adding and managing MongoDB server versions
+
+# Source settings
+source $SNAP/bin/wekan-read-settings
+
+# MongoDB version information
+declare -A MONGO_VERSIONS=(
+    ["3"]="3.2.22"
+    ["4"]="4.4.28"
+    ["5"]="5.0.28"
+    ["6"]="6.0.15"
+    ["7"]="7.0.25"
+    ["8"]="8.0.4"
+)
+
+# MongoDB binary paths
+declare -A MONGO_PATHS=(
+    ["3"]="/snap/${SNAP_NAME}/current/migratemongo/bin"
+    ["4"]="/snap/${SNAP_NAME}/current/mongodb4/bin"
+    ["5"]="/snap/${SNAP_NAME}/current/mongodb5/bin"
+    ["6"]="/snap/${SNAP_NAME}/current/mongodb6/bin"
+    ["7"]="/snap/${SNAP_NAME}/current/bin"
+    ["8"]="/snap/${SNAP_NAME}/current/mongodb8/bin"
+)
+
+# Check which MongoDB versions are available
+check_available_versions() {
+    echo "=== Available MongoDB Server Versions ==="
+    for version in "${!MONGO_VERSIONS[@]}"; do
+        local path="${MONGO_PATHS[$version]}"
+        if [ -f "$path/mongod" ]; then
+            echo "✓ MongoDB $version.x (${MONGO_VERSIONS[$version]}) - Available at $path"
+        else
+            echo "✗ MongoDB $version.x (${MONGO_VERSIONS[$version]}) - Not available at $path"
+        fi
+    done
+    echo ""
+}
+
+# Check which MongoDB Node.js drivers are available
+check_available_drivers() {
+    echo "=== Available MongoDB Node.js Drivers ==="
+    if [ -f "/home/wekan/repos/wekan/package.json" ]; then
+        for version in "${!MONGO_VERSIONS[@]}"; do
+            if grep -q "mongodb${version}legacy" "/home/wekan/repos/wekan/package.json"; then
+                echo "✓ MongoDB $version.x Node.js driver - Available (mongodb${version}legacy)"
+            else
+                echo "✗ MongoDB $version.x Node.js driver - Not available"
+            fi
+        done
+    else
+        echo "package.json not found"
+    fi
+    echo ""
+}
+
+# Show current active MongoDB version
+show_active_version() {
+    if [ -f "${SNAP_COMMON}/mongodb-active-version" ]; then
+        local active_version=$(cat "${SNAP_COMMON}/mongodb-active-version")
+        echo "=== Current Active MongoDB Version ==="
+        echo "Active Version: MongoDB $active_version.x"
+        echo "Version File: ${SNAP_COMMON}/mongodb-active-version"
+        echo ""
+    else
+        echo "=== Current Active MongoDB Version ==="
+        echo "No active version file found (will use default MongoDB 7.x)"
+        echo ""
+    fi
+}
+
+# Show version detection log
+show_detection_log() {
+    if [ -f "${SNAP_COMMON}/mongodb-version-detection.log" ]; then
+        echo "=== MongoDB Version Detection Log ==="
+        tail -20 "${SNAP_COMMON}/mongodb-version-detection.log"
+        echo ""
+    else
+        echo "=== MongoDB Version Detection Log ==="
+        echo "No detection log found"
+        echo ""
+    fi
+}
+
+# Force version detection
+force_detection() {
+    echo "=== Forcing MongoDB Version Detection ==="
+    rm -f "${SNAP_COMMON}/mongodb-active-version"
+    echo "Cleared cached version. Next MongoDB restart will detect version automatically."
+    echo ""
+}
+
+# Show help
+show_help() {
+    echo "MongoDB Version Manager"
+    echo ""
+    echo "Usage: $0 [command]"
+    echo ""
+    echo "Commands:"
+    echo "  versions     - Show available MongoDB server versions"
+    echo "  drivers      - Show available MongoDB Node.js drivers"
+    echo "  active       - Show current active MongoDB version"
+    echo "  log          - Show version detection log"
+    echo "  detect       - Force version detection on next restart"
+    echo "  help         - Show this help message"
+    echo ""
+    echo "Examples:"
+    echo "  $0 versions    # Check which MongoDB versions are available"
+    echo "  $0 active      # Show which version is currently active"
+    echo "  $0 detect      # Force re-detection on next restart"
+    echo ""
+}
+
+# Main command handling
+case "${1:-help}" in
+    "versions")
+        check_available_versions
+        ;;
+    "drivers")
+        check_available_drivers
+        ;;
+    "active")
+        show_active_version
+        ;;
+    "log")
+        show_detection_log
+        ;;
+    "detect")
+        force_detection
+        ;;
+    "help"|*)
+        show_help
+        ;;
+esac