Docker gen multiarch images

.circleci/config.yml

@@ -0,0 +1,80 @@
+version: 2
+jobs:
+  # publish jobs require $DOCKERHUB_REPO, $DOCKERHUB_USER, $DOCKERHUB_PASS defined
+  publish_docker_linuxamd64:
+    machine:
+      docker_layer_caching: true
+    steps:
+      - checkout  
+      - run:
+          command: |
+            LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            #
+            sudo docker build --pull -t $DOCKERHUB_REPO:$LATEST_TAG-amd64 -f linuxamd64.Dockerfile .
+            sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
+            sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-amd64
+
+  publish_docker_linuxarm:
+    machine:
+      docker_layer_caching: true
+    steps:
+      - checkout  
+      - run:
+          command: |
+            sudo docker run --rm --privileged multiarch/qemu-user-static:register --reset
+            LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            #
+            sudo docker build --pull -t $DOCKERHUB_REPO:$LATEST_TAG-arm32v7 -f linuxarm32v7.Dockerfile .
+            sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
+            sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-arm32v7
+
+  publish_docker_multiarch:
+    machine:
+      enabled: true
+      image: circleci/classic:201808-01
+    steps:
+      - run:
+          command: |
+            # Turn on Experimental features
+            sudo mkdir $HOME/.docker
+            sudo sh -c 'echo "{ \"experimental\": \"enabled\" }" >> $HOME/.docker/config.json'
+            #
+            sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
+            #
+            LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            sudo docker manifest create --amend $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-amd64 $DOCKERHUB_REPO:$LATEST_TAG-arm32v7
+            sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-amd64 --os linux --arch amd64
+            sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-arm32v7 --os linux --arch arm --variant v7
+            sudo docker manifest push $DOCKERHUB_REPO:$LATEST_TAG -p
+
+workflows:
+  version: 2
+  build_and_test:
+    jobs:
+      - test
+
+  publish:
+    jobs:
+      - publish_docker_linuxamd64:
+          filters:
+            # ignore any commit on any branch by default
+            branches:
+              ignore: /.*/
+            # only act on version tags
+            tags:
+              only: /v(.)*/
+      - publish_docker_linuxarm:
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /v(.)*/
+      - publish_docker_multiarch:
+          requires:
+            - publish_docker_linuxamd64
+            - publish_docker_linuxarm
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /v(.)*/

linuxamd64.Dockerfile

@@ -1,9 +1,9 @@
-FROM alpine:latest
+FROM alpine:3.8
 LABEL maintainer="Jason Wilder <mail@jasonwilder.com>"
 
 RUN apk -U add openssl
 
-ENV VERSION 0.7.3
+ENV VERSION 0.7.4
 ENV DOWNLOAD_URL https://github.com/jwilder/docker-gen/releases/download/$VERSION/docker-gen-alpine-linux-amd64-$VERSION.tar.gz
 ENV DOCKER_HOST unix:///tmp/docker.sock
 

linuxarm32v7.Dockerfile

@@ -0,0 +1,12 @@
+FROM arm32v6/alpine:3.8
+LABEL maintainer="Jason Wilder <mail@jasonwilder.com>"
+
+RUN apk -U add openssl
+
+ENV VERSION 0.7.4
+ENV DOWNLOAD_URL https://github.com/jwilder/docker-gen/releases/download/$VERSION/docker-gen-alpine-linux-armhf-$VERSION.tar.gz
+ENV DOCKER_HOST unix:///tmp/docker.sock
+
+RUN wget -qO- $DOWNLOAD_URL | tar xvz -C /usr/local/bin
+
+ENTRYPOINT ["/usr/local/bin/docker-gen"]