Added cicd pipelines

.circleci/build_and_push.sh

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+#!/usr/bin/env bash
+set -e
+aws ecr get-login --region $AWS_REGION --no-include-email | bash
+echo "Building docker image..."
+cp pkg/fluent-plugin-kubernetes-metrics-*.gem docker
+docker build --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}'
+echo "Docker image pushed successfully."

.circleci/config.yml

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+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/ruby:2.4.1-node-browsers
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+      - setup_remote_docker:
+          reusable: true
+      - run:
+          name: Install dependencies
+          command: |
+            sudo gem update --system
+            gem install bundler
+            bundle install --jobs=4 --retry=3 --path vendor/bundler
+
+      - run:
+          name: Builder
+          command: |
+            rake build -t -v
+
+      - run:
+          name: Run unit tests
+          command: |
+            rake test -t -v
+
+      - run:
+          name: Push rubygem to s3
+          command: |
+            .circleci/push_gem.sh
+
+      - run:
+          name: Build and push docker image to ecr
+          command: |
+            .circleci/build_and_push.sh

.circleci/push_gem.sh

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+#!/usr/bin/env bash
+set -e
+sudo apt-get install -y python-pip libpython-dev > /dev/null 2>&1
+echo "Installing aws cli..."
+sudo pip install awscli > /dev/null 2>&1
+echo "Pushing metrics gem to s3..."
+aws s3 cp pkg/*.gem s3://k8s-ci-artifacts/

README.md

@@ -1,3 +1,4 @@
+[![CircleCI](https://circleci.com/gh/git-lfs/git-lfs.svg?style=shield&circle-token=856152c2b02bfd236f54d21e1f581f3e4ebf47ad)](https://circleci.com/gh/splunk/fluent-plugin-kubernetes-metrics)
 # fluent-plugin-kubernetes-metrics
 
 [Fluentd](https://fluentd.org/) input plugin to collect kubernetes cluster metrics from the Summary API, exposed by [Kubelet](https://kubernetes.io/docs/admin/kubelet/) on each node.