buildspec_deploy.yml

version: 0.2
phases:
  install: # Install AWS cli, kubectl and Helm3
    commands:
       - apt-get update
       - apt-get install -y git python3 python3-pip
       - pip install awscli
       - curl -o aws-iam-authenticator https://s3.us-west-2.amazonaws.com/amazon-eks/1.21.2/2021-07-05/bin/linux/amd64/aws-iam-authenticator
       - chmod +x ./aws-iam-authenticator
       - mkdir -p $HOME/bin && cp ./aws-iam-authenticator $HOME/bin/aws-iam-authenticator && export PATH=$PATH:$HOME/bin
       - curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.21.0/bin/linux/amd64/kubectl
       - chmod +x kubectl
       - mv ./kubectl /usr/local/bin/kubectl
       - curl -sSL https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash
       - helm repo add stable https://charts.helm.sh/stable && helm repo update

  pre_build: # Check helm version and Add kubeconfig to access to EKS cluster and check readiness of the cluster
    commands:
      - helm version
      - mkdir ~/.kube/
      - aws eks --region $AWS_DEFAULT_REGION update-kubeconfig --name $EKS_CLUSTER_NAME --role-arn $EKS_CODEBUILD_ROLE_ARN
      - chmod 0600 ~/.kube/config
      - aws sts get-caller-identity
  
  build: # Deploy app via Helm
    commands:
      - helm upgrade -i $EKS_CODEBUILD_APP_NAME-$ENV helm_charts/$EKS_CODEBUILD_APP_NAME -f helm_charts/$EKS_CODEBUILD_APP_NAME/values.$ENV.yaml --set image.repository=$AWS_ACCOUNT_ID.dkr.ecr.$AWS_DEFAULT_REGION.amazonaws.com/$IMAGE_REPO_NAME --set image.tag=$CODEBUILD_RESOLVED_SOURCE_VERSION
  
  post_build: # Display the endpoint of the application
    commands:
      - bash -c "if [ /"$CODEBUILD_BUILD_SUCCEEDING/" == /"0/" ]; then exit 1; fi"
      - sleep 60
      - JAVA_APP_ENDPOINT=`kubectl get svc $EKS_CODEBUILD_APP_NAME-$ENV -o jsonpath="{.status.loadBalancer.ingress[*].hostname}"`
      - echo -e "\nThe Java application can be accessed nw via http://$JAVA_APP_ENDPOINT/hello"