|
@@ -1,178 +0,0 @@
|
|
|
-#!/usr/bin/env bash
|
|
|
-# Use this script to test if a given TCP host/port are available
|
|
|
-
|
|
|
-WAITFORIT_cmdname=${0##*/}
|
|
|
-
|
|
|
-echoerr() { if [[ $WAITFORIT_QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
|
|
|
-
|
|
|
-usage()
|
|
|
-{
|
|
|
- cat << USAGE >&2
|
|
|
-Usage:
|
|
|
- $WAITFORIT_cmdname host:port [-s] [-t timeout] [-- command args]
|
|
|
- -h HOST | --host=HOST Host or IP under test
|
|
|
- -p PORT | --port=PORT TCP port under test
|
|
|
- Alternatively, you specify the host and port as host:port
|
|
|
- -s | --strict Only execute subcommand if the test succeeds
|
|
|
- -q | --quiet Don't output any status messages
|
|
|
- -t TIMEOUT | --timeout=TIMEOUT
|
|
|
- Timeout in seconds, zero for no timeout
|
|
|
- -- COMMAND ARGS Execute command with args after the test finishes
|
|
|
-USAGE
|
|
|
- exit 1
|
|
|
-}
|
|
|
-
|
|
|
-wait_for()
|
|
|
-{
|
|
|
- if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
|
|
|
- echoerr "$WAITFORIT_cmdname: waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
|
|
|
- else
|
|
|
- echoerr "$WAITFORIT_cmdname: waiting for $WAITFORIT_HOST:$WAITFORIT_PORT without a timeout"
|
|
|
- fi
|
|
|
- WAITFORIT_start_ts=$(date +%s)
|
|
|
- while :
|
|
|
- do
|
|
|
- if [[ $WAITFORIT_ISBUSY -eq 1 ]]; then
|
|
|
- nc -z $WAITFORIT_HOST $WAITFORIT_PORT
|
|
|
- WAITFORIT_result=$?
|
|
|
- else
|
|
|
- (echo > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
|
|
|
- WAITFORIT_result=$?
|
|
|
- fi
|
|
|
- if [[ $WAITFORIT_result -eq 0 ]]; then
|
|
|
- WAITFORIT_end_ts=$(date +%s)
|
|
|
- echoerr "$WAITFORIT_cmdname: $WAITFORIT_HOST:$WAITFORIT_PORT is available after $((WAITFORIT_end_ts - WAITFORIT_start_ts)) seconds"
|
|
|
- break
|
|
|
- fi
|
|
|
- sleep 1
|
|
|
- done
|
|
|
- return $WAITFORIT_result
|
|
|
-}
|
|
|
-
|
|
|
-wait_for_wrapper()
|
|
|
-{
|
|
|
- # In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
|
|
|
- if [[ $WAITFORIT_QUIET -eq 1 ]]; then
|
|
|
- timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --quiet --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
|
|
|
- else
|
|
|
- timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
|
|
|
- fi
|
|
|
- WAITFORIT_PID=$!
|
|
|
- trap "kill -INT -$WAITFORIT_PID" INT
|
|
|
- wait $WAITFORIT_PID
|
|
|
- WAITFORIT_RESULT=$?
|
|
|
- if [[ $WAITFORIT_RESULT -ne 0 ]]; then
|
|
|
- echoerr "$WAITFORIT_cmdname: timeout occurred after waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
|
|
|
- fi
|
|
|
- return $WAITFORIT_RESULT
|
|
|
-}
|
|
|
-
|
|
|
-# process arguments
|
|
|
-while [[ $# -gt 0 ]]
|
|
|
-do
|
|
|
- case "$1" in
|
|
|
- *:* )
|
|
|
- WAITFORIT_hostport=(${1//:/ })
|
|
|
- WAITFORIT_HOST=${WAITFORIT_hostport[0]}
|
|
|
- WAITFORIT_PORT=${WAITFORIT_hostport[1]}
|
|
|
- shift 1
|
|
|
- ;;
|
|
|
- --child)
|
|
|
- WAITFORIT_CHILD=1
|
|
|
- shift 1
|
|
|
- ;;
|
|
|
- -q | --quiet)
|
|
|
- WAITFORIT_QUIET=1
|
|
|
- shift 1
|
|
|
- ;;
|
|
|
- -s | --strict)
|
|
|
- WAITFORIT_STRICT=1
|
|
|
- shift 1
|
|
|
- ;;
|
|
|
- -h)
|
|
|
- WAITFORIT_HOST="$2"
|
|
|
- if [[ $WAITFORIT_HOST == "" ]]; then break; fi
|
|
|
- shift 2
|
|
|
- ;;
|
|
|
- --host=*)
|
|
|
- WAITFORIT_HOST="${1#*=}"
|
|
|
- shift 1
|
|
|
- ;;
|
|
|
- -p)
|
|
|
- WAITFORIT_PORT="$2"
|
|
|
- if [[ $WAITFORIT_PORT == "" ]]; then break; fi
|
|
|
- shift 2
|
|
|
- ;;
|
|
|
- --port=*)
|
|
|
- WAITFORIT_PORT="${1#*=}"
|
|
|
- shift 1
|
|
|
- ;;
|
|
|
- -t)
|
|
|
- WAITFORIT_TIMEOUT="$2"
|
|
|
- if [[ $WAITFORIT_TIMEOUT == "" ]]; then break; fi
|
|
|
- shift 2
|
|
|
- ;;
|
|
|
- --timeout=*)
|
|
|
- WAITFORIT_TIMEOUT="${1#*=}"
|
|
|
- shift 1
|
|
|
- ;;
|
|
|
- --)
|
|
|
- shift
|
|
|
- WAITFORIT_CLI=("$@")
|
|
|
- break
|
|
|
- ;;
|
|
|
- --help)
|
|
|
- usage
|
|
|
- ;;
|
|
|
- *)
|
|
|
- echoerr "Unknown argument: $1"
|
|
|
- usage
|
|
|
- ;;
|
|
|
- esac
|
|
|
-done
|
|
|
-
|
|
|
-if [[ "$WAITFORIT_HOST" == "" || "$WAITFORIT_PORT" == "" ]]; then
|
|
|
- echoerr "Error: you need to provide a host and port to test."
|
|
|
- usage
|
|
|
-fi
|
|
|
-
|
|
|
-WAITFORIT_TIMEOUT=${WAITFORIT_TIMEOUT:-15}
|
|
|
-WAITFORIT_STRICT=${WAITFORIT_STRICT:-0}
|
|
|
-WAITFORIT_CHILD=${WAITFORIT_CHILD:-0}
|
|
|
-WAITFORIT_QUIET=${WAITFORIT_QUIET:-0}
|
|
|
-
|
|
|
-# check to see if timeout is from busybox?
|
|
|
-WAITFORIT_TIMEOUT_PATH=$(type -p timeout)
|
|
|
-WAITFORIT_TIMEOUT_PATH=$(realpath $WAITFORIT_TIMEOUT_PATH 2>/dev/null || readlink -f $WAITFORIT_TIMEOUT_PATH)
|
|
|
-if [[ $WAITFORIT_TIMEOUT_PATH =~ "busybox" ]]; then
|
|
|
- WAITFORIT_ISBUSY=1
|
|
|
- WAITFORIT_BUSYTIMEFLAG="-t"
|
|
|
-
|
|
|
-else
|
|
|
- WAITFORIT_ISBUSY=0
|
|
|
- WAITFORIT_BUSYTIMEFLAG=""
|
|
|
-fi
|
|
|
-
|
|
|
-if [[ $WAITFORIT_CHILD -gt 0 ]]; then
|
|
|
- wait_for
|
|
|
- WAITFORIT_RESULT=$?
|
|
|
- exit $WAITFORIT_RESULT
|
|
|
-else
|
|
|
- if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
|
|
|
- wait_for_wrapper
|
|
|
- WAITFORIT_RESULT=$?
|
|
|
- else
|
|
|
- wait_for
|
|
|
- WAITFORIT_RESULT=$?
|
|
|
- fi
|
|
|
-fi
|
|
|
-
|
|
|
-if [[ $WAITFORIT_CLI != "" ]]; then
|
|
|
- if [[ $WAITFORIT_RESULT -ne 0 && $WAITFORIT_STRICT -eq 1 ]]; then
|
|
|
- echoerr "$WAITFORIT_cmdname: strict mode, refusing to execute subprocess"
|
|
|
- exit $WAITFORIT_RESULT
|
|
|
- fi
|
|
|
- exec "${WAITFORIT_CLI[@]}"
|
|
|
-else
|
|
|
- exit $WAITFORIT_RESULT
|
|
|
-fi
|