build version branch images

.github/workflows/docker-version-branches.yaml

@@ -0,0 +1,52 @@
+name: Docker Release Branches
+permissions:
+  contents: read
+on:
+  push:
+    branches:
+      - 0-2*-0
+
+jobs:
+  publish:
+    runs-on:
+      group: large-runners
+      labels: linux
+    steps:
+      - name: Checkout
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        with:
+          fetch-depth: 0
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@507c2f2dc502c992ad446e3d7a5dfbe311567a96
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            pomerium/pomerium
+          # generate Docker tags based on the following events/attributes
+          tags: |
+            type=ref,event=branch
+            type=sha
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@e81a89b1732b9c48d79cd809d8d81d79c4647a18
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@f03ac48505955848960e80bbb68046aa35c7b9e7
+
+      - name: Login to DockerHub
+        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
+        with:
+          username: ${{ secrets.DOCKERHUB_USER }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Docker Publish - Version Branches
+        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}