Merge pull request #6 from gizmoguy/master

Use github actions + docker buildx for building multi-arch images.

.github/workflows/release.yml

@@ -0,0 +1,32 @@
+name: Release workflow
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  docker-image:
+    name: "Build docker image"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Set up docker buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          buildx-version: latest
+          qemu-version: latest
+      - name: Login to docker registry
+        run: |
+          docker login --username ${{ secrets.DOCKER_USERNAME }} --password ${{ secrets.DOCKER_TOKEN }}
+      - name: Run buildx
+        run: |
+          docker buildx build \
+            --tag faucet/base:${{ github.event.release.tag_name }} \
+            --tag faucet/base:latest \
+            --platform linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8,linux/ppc64le,linux/s390x \
+            --output "type=registry" \
+            --file Dockerfile \
+            .

Dockerfile

@@ -1,6 +1,9 @@
 ## Image name: faucet/base
 
-FROM alpine:3.10
+FROM alpine:3.10.5
+
 RUN apk add --no-cache bash su-exec
+
 COPY entrypoint.sh /usr/local/bin/entrypoint.sh
+
 ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]

README.rst

@@ -12,4 +12,9 @@ Built images are available on Docker Hub so that you don't need to build your ow
 Images are available for the following architectures:
 
 * `amd64 <https://hub.docker.com/r/faucet/base/>`_
-* `armhf (for raspberry pi) <https://hub.docker.com/r/faucet/base-pi/>`_
+* `386 <https://hub.docker.com/r/faucet/base/>`_
+* `arm/v6 <https://hub.docker.com/r/faucet/base/>`_
+* `arm/v7 <https://hub.docker.com/r/faucet/base/>`_
+* `arm64/v8 <https://hub.docker.com/r/faucet/base/>`_
+* `ppc64le <https://hub.docker.com/r/faucet/base/>`_
+* `s390x <https://hub.docker.com/r/faucet/base/>`_