Adding dockerfiles for multi-arch builds and manifest.

Dockerfile.arm64v8

@@ -0,0 +1,77 @@
+FROM amd64/alpine:3.7 AS builder
+
+# Set the environment variables for builder
+ENV QEMU_VERSION=v4.2.0-6 \
+    QEMU_ARCHITECTURE=aarch64 \
+    NODE_ARCHITECTURE=linux-arm64 \
+    NODE_VERSION=v12.16.1 \
+    WEKAN_VERSION=3.96  \
+    WEKAN_ARCHITECTURE=arm64
+     
+     # Install dependencies 
+RUN  apk update && apk add ca-certificates outils-sha1 && \
+     \
+     # Download qemu static for our architecture
+     wget https://github.com/multiarch/qemu-user-static/releases/download/${QEMU_VERSION}/qemu-${QEMU_ARCHITECTURE}-static.tar.gz -O - | tar -xz && \
+     \
+    # Download wekan and shasum
+    wget https://releases.wekan.team/raspi3/wekan-${WEKAN_VERSION}-${WEKAN_ARCHITECTURE}.zip && \
+    wget https://releases.wekan.team/raspi3/SHA256SUMS.txt && \
+    # Verify wekan
+    grep wekan-${WEKAN_VERSION}-${WEKAN_ARCHITECTURE}.zip SHA256SUMS.txt | sha256sum -c - && \ 
+    \
+    # Unzip wekan
+    unzip wekan-${WEKAN_VERSION}-${WEKAN_ARCHITECTURE}.zip && \
+    \
+    # Download node and shasums
+    wget https://nodejs.org/dist/${NODE_VERSION}/node-${NODE_VERSION}-${NODE_ARCHITECTURE}.tar.gz && \
+    wget https://nodejs.org/dist/${NODE_VERSION}/SHASUMS256.txt.asc && \
+    \
+    # Verify nodejs authenticity
+    grep node-${NODE_VERSION}-${NODE_ARCHITECTURE}.tar.gz SHASUMS256.txt.asc | sha256sum -c - && \
+    \
+    # Extract node and remove tar.gz
+    tar xvzf node-${NODE_VERSION}-${NODE_ARCHITECTURE}.tar.gz
+
+# Build wekan dockerfile 
+FROM arm64v8/ubuntu:19.10
+LABEL maintainer="wekan"
+
+# Set the environment variables (defaults where required)
+ENV QEMU_ARCHITECTURE=aarch64 \
+    NODE_ARCHITECTURE=linux-arm64 \
+    NODE_VERSION=v12.16.1 \
+    NODE_ENV=production \
+    NPM_VERSION=latest \
+    WITH_API=true \
+    PORT=8080 \
+    ROOT_URL=http://localhost \
+    MONGO_URL=mongodb://127.0.0.1:27017/wekan 
+
+# Copy qemu-static to image
+COPY --from=builder qemu-${QEMU_ARCHITECTURE}-static /usr/bin
+
+# Copy the app to the image
+COPY --from=builder bundle /home/wekan/bundle
+
+# Copy
+COPY --from=builder node-${NODE_VERSION}-${NODE_ARCHITECTURE} /opt/nodejs 
+
+RUN \
+    set -o xtrace && \
+    # Add non-root user wekan
+    useradd --user-group --system --home-dir /home/wekan wekan && \
+    \
+    # Install Node
+    ln -s /opt/nodejs/bin/node /usr/bin/node && \
+    ln -s /opt/nodejs/bin/npm /usr/bin/npm && \
+    mkdir -p /opt/nodejs/lib/node_modules/fibers/.node-gyp /root/.node-gyp/8.16.1 /home/wekan/.config && \
+    chown wekan --recursive /home/wekan/.config && \
+    \
+    # Install Node dependencies
+    npm install -g npm@${NPM_VERSION}
+
+EXPOSE $PORT
+USER wekan
+
+CMD ["node", "/home/wekan/bundle/main.js"]

wekan-dockerfile-manifest.yaml

@@ -0,0 +1,11 @@
+image: quay.io/wekan/wekan
+manifests:
+  - image: quay.io/wekan/wekan:amd64
+    platform:
+      architecture: amd64
+      os: linux
+  - image: quay.io/wekan/wekan:arm64v8
+    platform:
+      architecture: arm64
+      os: linux
+      variant: v8