Add github actions for multiarch

.github/workflows/build.yaml

@@ -0,0 +1,35 @@
+name: build from source
+
+on:
+  push:
+    branches:
+      - master
+      - dev
+    paths:
+      - .github/workflows/build.yaml
+      - build/.dockerignore
+      - build/build-docker.sh
+      - build/build.sh
+      - build/Dockerfile
+      - build/entrypoint.sh
+      - build/gpgparams
+      - build/VERSION
+
+env:
+  DOCKER_TAG: shenxn/protonmail-bridge
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+      - name: Docker login
+        uses: azure/docker-login@v1
+        with:
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_USERNAME }}
+      - name: Set up Docker buildx
+        uses: crazy-max/ghaction-docker-buildx@v2
+      - name: Build image
+        run: bash build/build-docker.sh

.github/workflows/main.yaml

@@ -16,7 +16,7 @@ on:
       - VERSION
 
 env:
-  DOCKER_TAG: shenxn/protonmail-bridge
+  DOCKER_REPO: shenxn/protonmail-bridge
 
 jobs:
   build:

build/build-docker.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -ex
+
+# Enter the right path
+SCRIPT=`realpath $0`
+SCRIPTPATH=`dirname $SCRIPT`
+cd $SCRIPTPATH
+
+# Set docker tag
+VERSION=`cat VERSION`
+if [[ $GITHUB_REF == "refs/heads/master" ]]; then
+    TAG_TYPE="build"
+    TAG_VERTION="${VERSION}-build"
+else
+    TAG_TYPE="build-dev"
+    TAG_VERTION="${VERSION}-build-dev"
+fi
+
+# Build multiarch and push
+docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7,linux/arm/v6 -t ${DOCKER_REPO}:${TAG_TYPE} -t ${DOCKER_REPO}:${TAG_VERSION} --push .

build/gpgparams

@@ -0,0 +1,8 @@
+%no-protection
+%echo Generating a basic OpenPGP key
+Key-Type: RSA
+Key-Length: 2048
+Name-Real: pass-key
+Expire-Date: 0
+%commit
+%echo done