[Docker] support multi-arch build (#9246)

* multi arch build

* fix buildx

* use openjdk

* fix bash install

* remove armv7

* remove arm64

* use jre 11

* add v8

* skip bash install

* add back tests

* remove v8

* minor change

* fix tag and push

* fix tag

* skip pull request for dockerhub push

.travis.yml

@@ -62,6 +62,14 @@ addons:
     - petstore.swagger.io
 
 before_install:
+  - sudo rm -rf /var/lib/apt/lists/*
+  - curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+  - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) edge"
+  - sudo apt-get update
+  - sudo apt-get -y -o Dpkg::Options::="--force-confnew" install docker-ce
+  - mkdir -vp ~/.docker/cli-plugins/
+  - curl --silent -L "https://github.com/docker/buildx/releases/download/v0.3.0/buildx-v0.3.0.linux-amd64" > ~/.docker/cli-plugins/docker-buildx
+  - chmod a+x ~/.docker/cli-plugins/docker-buildx
   # to run petstore server locally via docker
   - echo "$DOCKER_HUB_PASSWORD" | docker login --username=$DOCKER_HUB_USERNAME --password-stdin || true
   - docker pull swaggerapi/petstore
@@ -149,6 +157,8 @@ install:
 script:
   # fail fast
   - set -e
+  # show docker buildx version
+  - docker buildx version
   # fail if the template files contains tabs
   - /bin/bash ./bin/utils/detect_tab_in_templates.sh
   # fail if the test files have changes
@@ -199,12 +209,14 @@ after_success:
       echo "$DOCKER_HUB_PASSWORD" | docker login --username=$DOCKER_HUB_USERNAME --password-stdin;
       export cli_version=$(\mvn -o org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate -Dexpression=project.version | grep -v '\[');
       export build_date=$(date -u +"%Y-%m-%dT%H:%M:%SZ");
-      docker build --label=org.opencontainers.image.created=$build_date --label=org.opencontainers.image.title=openapi-generator-online --label=org.opencontainers.image.revision=$TRAVIS_COMMIT --label=org.opencontainers.image.version=$cli_version -t $DOCKER_GENERATOR_IMAGE_NAME ./modules/openapi-generator-online;
+      docker buildx create --use;
       if [ ! -z "$TRAVIS_TAG" ]; then
-          docker tag $DOCKER_GENERATOR_IMAGE_NAME:latest $DOCKER_GENERATOR_IMAGE_NAME:$TRAVIS_TAG;
+          docker buildx build --platform linux/amd64,linux/arm64 --label=org.opencontainers.image.created=$build_date --label=org.opencontainers.image.title=openapi-generator-online --label=org.opencontainers.image.revision=$TRAVIS_COMMIT --label=org.opencontainers.image.version=$cli_version -t $DOCKER_GENERATOR_IMAGE_NAME:latest -t $DOCKER_GENERATOR_IMAGE_NAME:$TRAVIS_TAG -t $DOCKER_GENERATOR_IMAGE_NAME ./modules/openapi-generator-online;
+          echo "Built and tagged $DOCKER_GENERATOR_IMAGE_NAME";
       fi;
-      if [ ! -z "$TRAVIS_TAG" ] || [ "$TRAVIS_BRANCH" = "master" ]; then
-          docker push $DOCKER_GENERATOR_IMAGE_NAME && echo "Pushed to $DOCKER_GENERATOR_IMAGE_NAME";
+      if [ -z "$TRAVIS_TAG" ] && [ "$TRAVIS_BRANCH" = "master" ] && ["$TRAVIS_PULL_REQUEST" = "false" ]; then
+          docker buildx build --push --platform linux/amd64,linux/arm64 --label=org.opencontainers.image.created=$build_date --label=org.opencontainers.image.title=openapi-generator-online --label=org.opencontainers.image.revision=$TRAVIS_COMMIT --label=org.opencontainers.image.version=$cli_version -t $DOCKER_GENERATOR_IMAGE_NAME ./modules/openapi-generator-online;
+          echo "Pushed to $DOCKER_GENERATOR_IMAGE_NAME for master";
       fi;
     fi;
   ## docker: build cli image and push to Docker Hub
@@ -213,12 +225,14 @@ after_success:
       cp docker-entrypoint.sh ./modules/openapi-generator-cli;
       export cli_version=$(\mvn -o org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate -Dexpression=project.version | grep -v '\[');
       export build_date=$(date -u +"%Y-%m-%dT%H:%M:%SZ");
-      docker build --label=org.opencontainers.image.created=$build_date --label=org.opencontainers.image.title=openapi-generator-cli --label=org.opencontainers.image.revision=$TRAVIS_COMMIT --label=org.opencontainers.image.version=$cli_version -t $DOCKER_CODEGEN_CLI_IMAGE_NAME ./modules/openapi-generator-cli;
+      docker buildx create --use;
+      docker buildx build --platform linux/amd64,linux/arm64 --label=org.opencontainers.image.created=$build_date --label=org.opencontainers.image.title=openapi-generator-cli --label=org.opencontainers.image.revision=$TRAVIS_COMMIT --label=org.opencontainers.image.version=$cli_version -t $DOCKER_CODEGEN_CLI_IMAGE_NAME ./modules/openapi-generator-cli;
       if [ ! -z "$TRAVIS_TAG" ]; then
-          docker tag $DOCKER_CODEGEN_CLI_IMAGE_NAME:latest $DOCKER_CODEGEN_CLI_IMAGE_NAME:$TRAVIS_TAG;
+          docker buildx build --platform linux/amd64,linux/arm64 --label=org.opencontainers.image.created=$build_date --label=org.opencontainers.image.title=openapi-generator-cli --label=org.opencontainers.image.revision=$TRAVIS_COMMIT --label=org.opencontainers.image.version=$cli_version -t $DOCKER_CODEGEN_CLI_IMAGE_NAME:latest -t $DOCKER_CODEGEN_CLI_IMAGE_NAME:$TRAVIS_TAG -t $DOCKER_CODEGEN_CLI_IMAGE_NAME ./modules/openapi-generator-cli;
+          echo "Built and tagged $DOCKER_GENERATOR_IMAGE_NAME";
       fi;
-      if [ ! -z "$TRAVIS_TAG" ] || [ "$TRAVIS_BRANCH" = "master" ]; then
-          docker push $DOCKER_CODEGEN_CLI_IMAGE_NAME;
+      if [ -z "$TRAVIS_TAG" ] && [ "$TRAVIS_BRANCH" = "master" ] && ["$TRAVIS_PULL_REQUEST" = "false" ]; then
+          docker buildx build --push --platform linux/amd64,linux/arm64 --label=org.opencontainers.image.created=$build_date --label=org.opencontainers.image.title=openapi-generator-cli --label=org.opencontainers.image.revision=$TRAVIS_COMMIT --label=org.opencontainers.image.version=$cli_version -t $DOCKER_CODEGEN_CLI_IMAGE_NAME ./modules/openapi-generator-cli;
           echo "Pushed to $DOCKER_CODEGEN_CLI_IMAGE_NAME";
       fi;
     fi;

modules/openapi-generator-cli/Dockerfile

@@ -1,6 +1,4 @@
-FROM java:8-jre-alpine
-
-RUN apk add --no-cache bash
+FROM openjdk:11.0-jre-buster
 
 ADD target/openapi-generator-cli.jar /opt/openapi-generator/modules/openapi-generator-cli/target/openapi-generator-cli.jar