Merge pull request hypnoglow#88 from hypnoglow/add-docker-image

Add docker image

.circleci/config.yml

@@ -2,6 +2,47 @@
 # Ref: https://circleci.com/docs/2.0/configuration-reference/
 version: 2.1
 
+commands:
+  build_push_docker_image:
+    description: "Builds and pushes Docker image"
+    parameters:
+      helm_version:
+        type: string
+      image_name:
+        type: string
+        default: hypnoglow/helm-s3
+    steps:
+      - run:
+          name: Build & push Docker image
+          command: |
+            HELM_VERSION="<< parameters.helm_version >>"
+            IMAGE_NAME="<< parameters.image_name >>"
+
+            PLUGIN_VERSION="commit.${CIRCLE_SHA1}"
+            if [ "${CIRCLE_BRANCH}" == "master" ]; then
+              PLUGIN_VERSION="master"
+            fi
+            if [ -n "${CIRCLE_TAG}" ]; then
+              PLUGIN_VERSION="${CIRCLE_TAG#v*}"
+            fi
+
+            docker build \
+              --build-arg HELM_VERSION=${HELM_VERSION} \
+              --build-arg PLUGIN_VERSION=${PLUGIN_VERSION} \
+              --build-arg BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ") \
+              --build-arg VCS_REF=$(git rev-parse --short HEAD) \
+              -t ${IMAGE_NAME}:local .
+
+            echo "${DOCKERHUB_PASSWORD}" | docker login -u "${DOCKERHUB_USERNAME}" --password-stdin
+
+            IMAGE_TAG="${PLUGIN_VERSION}-helm${HELM_VERSION}"
+            docker tag ${IMAGE_NAME}:local ${IMAGE_NAME}:${IMAGE_TAG}
+            docker push ${IMAGE_NAME}:${IMAGE_TAG}
+
+            IMAGE_TAG_HELM_MINOR="${PLUGIN_VERSION}-helm${HELM_VERSION%*.*}"
+            docker tag ${IMAGE_NAME}:local ${IMAGE_NAME}:${IMAGE_TAG_HELM_MINOR}
+            docker push ${IMAGE_NAME}:${IMAGE_TAG_HELM_MINOR}
+
 jobs:
   dep:
     docker:
@@ -119,6 +160,28 @@ jobs:
             if [ -n "$CIRCLE_TAG" ]; then
               curl -sL https://git.io/goreleaser | bash
             fi
+  docker-helm-2_14:
+    docker:
+      - image: circleci/buildpack-deps:stretch
+    working_directory: ~/workspace/helm-s3
+    steps:
+      - attach_workspace:
+          at: ~/workspace
+      - setup_remote_docker:
+          version: 18.06.0-ce
+      - build_push_docker_image:
+          helm_version: 2.14.3
+  docker-helm-2_15:
+    docker:
+      - image: circleci/buildpack-deps:stretch
+    working_directory: ~/workspace/helm-s3
+    steps:
+      - attach_workspace:
+          at: ~/workspace
+      - setup_remote_docker:
+          version: 18.06.0-ce
+      - build_push_docker_image:
+          helm_version: 2.15.2
 
 workflows:
   version: 2
@@ -138,6 +201,24 @@ workflows:
           filters:
             branches:
               only: master
+      - docker-helm-2_14:
+          requires:
+            - dep
+            - test-unit
+            - test-integration-and-e2e
+            - test-install
+          filters:
+            branches:
+              only: master
+      - docker-helm-2_15:
+          requires:
+            - dep
+            - test-unit
+            - test-integration-and-e2e
+            - test-install
+          filters:
+            branches:
+              only: master
   # release-pipeline runs only on tags.
   release-pipeline:
     jobs:
@@ -155,9 +236,30 @@ workflows:
               only: /.*/
             branches:
               ignore: /.*/
+      - docker-helm-2_14:
+          requires:
+            - dep
+            - test-install
+          filters:
+            tags:
+              only: /.*/
+            branches:
+              ignore: /.*/
+      - docker-helm-2_15:
+          requires:
+            - dep
+            - test-install
+          filters:
+            tags:
+              only: /.*/
+            branches:
+              ignore: /.*/
       - release:
           requires:
             - dep
+            - test-install
+            - docker-helm-2_14
+            - docker-helm-2_15
           filters:
             tags:
               only: /.*/

.dockerignore

@@ -0,0 +1,3 @@
+# Ref: https://docs.docker.com/engine/reference/builder/#dockerignore-file
+.git
+bin

CHANGELOG.md

@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Added
+
+- The plugin is now also distributed as Docker images. Images are pushed to Docker Hub tagged with plugin release 
+version and suffixed with Helm version. The image built from master branch is also available, note that it should be
+only used for playing and testing, it is **strongly discouraged** to use that image for production use cases. 
+Refer to https://hub.docker.com/r/hypnoglow/helm-s3 for details and all available tags.
+[Refs: [#79](https://github.com/hypnoglow/helm-s3/issues/79) [#88](https://github.com/hypnoglow/helm-s3/pull/88)]
+
 ### Fixed
 
 - Fixed incorrect s3 url when "proxy" runs on uninitialized repository.

Dockerfile

@@ -0,0 +1,45 @@
+ARG HELM_VERSION
+
+FROM golang:1.12-alpine as build
+
+ARG PLUGIN_VERSION
+
+WORKDIR /workspace/helm-s3
+
+COPY . .
+
+RUN apk add --no-cache git
+
+RUN go build -o bin/helms3 \
+    -mod=vendor \
+    -ldflags "-X main.version=${PLUGIN_VERSION}" \
+    ./cmd/helms3
+
+# Correct the plugin manifest with docker-specific fixes:
+# - remove hooks, because we are building everything locally from source
+# - update version
+RUN sed "/^hooks:/,+2 d" plugin.yaml > plugin.yaml.fixed \
+    && sed -i "s/^version:.*$/version: ${PLUGIN_VERSION}/" plugin.yaml.fixed
+
+FROM alpine/helm:${HELM_VERSION}
+
+# Build-time metadata as defined at http://label-schema.org
+ARG BUILD_DATE
+ARG VCS_REF
+ARG PLUGIN_VERSION
+LABEL org.label-schema.build-date=$BUILD_DATE \
+      org.label-schema.name="helm-s3" \
+      org.label-schema.description="The Helm plugin that provides S3 protocol support and allows to use AWS S3 as a chart repository." \
+      org.label-schema.vcs-ref=$VCS_REF \
+      org.label-schema.vcs-url="https://github.com/hypnoglow/helm-s3" \
+      org.label-schema.version=$PLUGIN_VERSION \
+      org.label-schema.schema-version="1.0"
+
+COPY --from=build /workspace/helm-s3/plugin.yaml.fixed /root/.helm/cache/plugins/helm-s3/plugin.yaml
+COPY --from=build /workspace/helm-s3/bin/helms3 /root/.helm/cache/plugins/helm-s3/bin/helms3
+
+RUN mkdir -p /root/.helm/plugins \
+    && helm plugin install /root/.helm/cache/plugins/helm-s3
+
+ENTRYPOINT []
+CMD []

README.md

@@ -24,7 +24,16 @@ download versioned release with prebuilt binary from [github releases](https://g
 However, if you want to build the plugin from source, or you want to contribute
 to the plugin, please see [these instructions](.github/CONTRIBUTING.md).
 
-#### Note on AWS authentication
+### Docker Images
+
+[![Docker Pulls](https://img.shields.io/docker/pulls/hypnoglow/helm-s3)](https://hub.docker.com/r/hypnoglow/helm-s3)
+
+The plugin is also distributed as Docker images. Images are pushed to Docker Hub tagged with plugin release 
+version and suffixed with Helm version. The image built from master branch is also available, note that it should be
+only used for playing and testing, it is **strongly discouraged** to use that image for production use cases. 
+Refer to https://hub.docker.com/r/hypnoglow/helm-s3 for details and all available tags.
+
+### Note on AWS authentication
 
 Because this plugin assumes private access to S3, you need to provide valid AWS credentials.
 You can do this in [the same manner](https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html) as for `AWS CLI` tool.