GH Actions: use NPM version for docker tag

Author: pdiakumis

.github/workflows/build_docker_container_and_push_to_ghcrio.yml

@@ -0,0 +1,69 @@
+name: deploy
+
+on:
+  push:
+    branches:
+      - main
+      - v2
+jobs:
+  tag_and_dockerise:
+    # When merging to one of the branches above and the commit message matches
+    if: "startsWith(github.event.head_commit.message, 'Bump version:')"
+    name: Tag and dockerise
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        shell: bash -l {0}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Get package version
+        id: package-version
+        uses: martinbeentjes/npm-get-version-action@master
+      - name: Tag based on version
+        uses: actions/github-script@v5
+        env:
+          VERSION: ${{ steps.package-version.outputs.current-version }}
+        with:
+          script: |
+            const the_tag = 'refs/tags/v' + process.env.VERSION
+            github.rest.git.createRef({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              ref: the_tag,
+              sha: context.sha
+            })
+
+      # checkout tag from above
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          ref: v${{ steps.package-version.outputs.current-version }}
+      # Use qemu to perform multiplatform builds
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      # Use docker buildx to build multi-platform containers
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          use: true
+          install: true
+          config-inline: |
+            [worker.oci]
+              max-parallelism = 2
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push docker image
+        uses: docker/build-push-action@v2
+        env:
+          VERSION: ${{ steps.package-version.outputs.current-version }}
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository }}:${{ env.VERSION }}

bump

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+# usage: bump major/minor/patch
+npm version $1 -m 'Bump version: %s'