deploy job for the blog ci/cd pipeline for k8s using circleci & helm task.

deploy.yaml

deploy:
    docker: (1)
        - image: circleci/golang:1.10
    steps: (2)
      - checkout
      - run: (3)
          name: Install AWS cli
          command: export TZ=Europe/Minsk && sudo ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > sudo  /etc/timezone && sudo apt-get update && sudo apt-get install -y awscli
      - run: (4)
          name: Set the tag for the image, we will concatenate the app verson and circle build number with a `-` char in between
          command:  echo 'export TAG=$(cat VERSION)-$CIRCLE_PREVIOUS_BUILD_NUM' >> $BASH_ENV
      - run: (5)
          name: Install and confgure kubectl
          command: sudo curl -L https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl -o /usr/local/bin/kubectl && sudo chmod +x /usr/local/bin/kubectl  
      - run: (6)
          name: Install and confgure kubectl aws-iam-authenticator
          command: curl -o aws-iam-authenticator https://amazon-eks.s3-us-west-2.amazonaws.com/1.10.3/2018-07-26/bin/linux/amd64/aws-iam-authenticator && sudo chmod +x ./aws-iam-authenticator && sudo cp ./aws-iam-authenticator /bin/aws-iam-authenticator
       - run: (7)
          name: Install latest awscli version
          command: sudo apt install unzip && curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip" && unzip awscli-bundle.zip &&./awscli-bundle/install -b ~/bin/aws
      - run: (8)
          name: Get the kubeconfig file 
          command: export KUBECONFIG=$HOME/.kube/kubeconfig && /home/circleci/bin/aws eks --region $AWS_REGION update-kubeconfig --name $EKS_CLUSTER_NAME
      - run: (9)
          name: Install and configuire helm
          command: sudo curl -L https://storage.googleapis.com/kubernetes-helm/helm-v2.11.0-linux-amd64.tar.gz | tar xz && sudo mv linux-amd64/helm /bin/helm && sudo rm -rf linux-amd64
      - run: (10)
          name: Initialize helm
          command:  helm init --client-only --kubeconfig=$HOME/.kube/kubeconfig
      - run: (11)
          name: Install tiller plugin
          command: helm plugin install https://github.com/rimusz/helm-tiller --kubeconfig=$HOME/.kube/kubeconfig        
      - run: (12)
          name: Release helloapp using helm chart 
          command: bash scripts/release-helloapp.sh $TAG