Added release workflow (#34)

Author: chaitanyaphalak

.circleci/build_and_push.sh

@@ -3,9 +3,7 @@ set -e
 aws ecr get-login --region $AWS_REGION --no-include-email | bash
 echo "Building docker image..."
 cp /tmp/pkg/fluent-plugin-kubernetes-metrics-*.gem docker
-echo "Copy latest fluent-plugin-splunk-hec gem from S3"
-aws s3 cp s3://k8s-ci-artifacts/fluent-plugin-splunk-hec-${FLUENT_SPLUNK_HEC_GEM_VERSION}.gem ./docker
-docker build --no-cache -t splunk/fluent-plugin-kubernetes-metrics:metrics ./docker
+docker build --build-arg VERSION=$FLUENT_SPLUNK_HEC_GEM_VERSION --no-cache -t splunk/fluent-plugin-kubernetes-metrics:metrics ./docker
 docker tag splunk/fluent-plugin-kubernetes-metrics:metrics $AWS_ACCOUNT_ID.dkr.ecr.$AWS_REGION.amazonaws.com/k8s-ci-metrics:latest
 echo "Push docker image to ecr..."
 docker push $AWS_ACCOUNT_ID.dkr.ecr.$AWS_REGION.amazonaws.com/k8s-ci-metrics:latest | awk 'END{print}'

.circleci/build_and_push_to_dockerhub.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+echo "Building docker image..."
+cp /tmp/pkg/fluent-plugin-kubernetes-metrics-*.gem docker
+VERSION=`cat VERSION`
+docker build --build-arg VERSION=$VERSION --no-cache -t splunk/fluent-plugin-kubernetes-metrics:ci ./docker
+docker tag splunk/fluent-plugin-kubernetes-metrics:ci splunk/${DOCKERHUB_REPO_NAME}:${VERSION}
+echo "Push docker image to splunk dockerhub..."
+docker login --username=$DOCKERHUB_ACCOUNT_ID --password=$DOCKERHUB_ACCOUNT_PASS
+docker push splunk/${DOCKERHUB_REPO_NAME}:${VERSION} | awk 'END{print}'
+echo "Docker image pushed successfully to docker-hub."

.circleci/build_and_push_to_github_release.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+wget https://github.com/tcnksm/ghr/releases/download/v0.12.0/ghr_v0.12.0_linux_amd64.tar.gz
+tar -xzvf ghr_v0.12.0_linux_amd64.tar.gz
+sudo chmod +x ghr_v0.12.0_linux_amd64
+sudo mv ghr_v0.12.0_linux_amd64/ghr /usr/local/bin/ghr
+
+VERSION=`cat VERSION`
+echo "Pushing SCK release to github releases...${VERSION}"
+
+ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} -n "${RELEASE_TITLE}" -b "${RELEASE_BODY}" -draft ${VERSION} /tmp/pkg/

.circleci/config.yml

@@ -60,6 +60,29 @@ jobs:
           command: |
             .circleci/build_and_push.sh
 
+  release:
+    docker:
+      - image: circleci/ruby:2.6.1-node-browsers
+    working_directory: ~/repo
+    steps:
+      - attach_workspace:
+          at: /tmp
+      - checkout
+      - setup_remote_docker:
+          reusable: true
+      - run:
+          name: Install dependencies
+          command: |
+            .circleci/install_dep.sh
+      - run:
+          name: Build and push docker image to dockerhub
+          command: |
+            .circleci/build_and_push_to_dockerhub.sh
+      - run:
+          name: Upload gem to Github
+          command: |
+            .circleci/build_and_push_to_github_release.sh
+
 workflows:
   version: 2
   build_test_push:
@@ -73,4 +96,10 @@ workflows:
             - test
           filters:
             branches:
-              only: develop
+              only: develop
+      - release:
+          requires:
+          - test
+          filters:
+            branches:
+              only: master

docker/Dockerfile

@@ -1,7 +1,10 @@
 FROM alpine:3.8
 
-LABEL maintainer="Don Tregonning <[email protected]>, Chaitanya Phalak <[email protected]>"
-LABEL Description="Splunk Connect for Kubernetes docker image" Vendor="Splunk Inc." Version="1.1.Alpha"
+LABEL maintainer="Splunk Inc. <[email protected]>"
+LABEL Description="Splunk Connect for Kubernetes docker image" Vendor="Splunk Inc."
+
+ARG VERSION
+ENV VERSION=${VERSION}
 
 ENV DUMB_INIT_VERSION=1.2.1
 ENV SU_EXEC_VERSION=0.2
@@ -26,13 +29,13 @@ RUN apk update \
         ruby-dev wget gnupg \
  && echo 'gem: --no-document' >> /etc/gemrc \
  && gem install -N \
-         fluentd:1.3.3 \
-         fluent-plugin-record-modifier:1.1.0 \
-         fluent-plugin-splunk-hec:1.0.1 \
-         oj:3.7.8 \
+         fluentd:1.4.0 \
+         fluent-plugin-record-modifier:2.0.1 \
+         fluent-plugin-splunk-hec:${VERSION} \
+         oj:3.7.9 \
          multi_json:1.13.1 \
-         bigdecimal:1.3.5 \
-         kubeclient:4.2.2 \
+         bigdecimal:1.4.3 \
+         kubeclient:4.3.0 \
  && gem install -N /tmp/*.gem \
  && apk del .build-deps \
  && rm -rf /var/cache/apk/* \