pipeline {
  agent {
    kubernetes {
      label UUID.randomUUID().toString()
      containerTemplate {
        name 'this'
        image 'staywell/terraform:1.1.0'
        ttyEnabled true
        command 'cat'
      }
    }
  }

  options {
    buildDiscarder(logRotator(numToKeepStr: '30'))
  }

  environment {
    AWS_ACCESS_KEY_ID = credentials('aws.id')
    AWS_SECRET_ACCESS_KEY = credentials('aws.key')
  }

  stages {
    stage('Initialize') {
      steps {
        container('this') {
          configFileProvider([configFile(fileId: 'kubeconfig', variable: 'KUBECONFIG')]) {
            sh '''
              # calculate env name based on git repository name
              export TF_VAR_env=$(git remote get-url origin | sed -e "s/.*env-//" | sed -e "s/.git//")

              # This config would be better put inside config.tf, but due to a Terraform limitation you
              # cannot use variables in a backend configuration. Therefore this is the only way to
              # dynamically set the "key" value so that it is unique for each environment.
              #
              # Note that the "region" value below is NOT the region that your Terraform infrastructure
              # is being deployed to. It is only the region of the state storage bucket and will be the
              # same across all Staywell environments.
              terraform init \\
                -backend-config "bucket=staywell-terraform-state" \\
                -backend-config "region=us-west-2" \\
                -backend-config "key=${TF_VAR_env}.tfstate" \\
                -backend-config "encrypt=true"
            '''
          }
        }
      }
    }
    stage('Plan') {
      steps {
        container('this') {
          configFileProvider([configFile(fileId: 'kubeconfig', variable: 'KUBECONFIG')]) {
            sh '''
              # calculate env name based on git repository name
              export TF_VAR_env=$(git remote get-url origin | sed -e "s/.*env-//" | sed -e "s/.git//")

              # uncomment for a single run any time the EKS cluster is destroyed and needs to be rebuilt
              # terraform state rm module.worker_config_map
              # terraform state rm module.jenkins
              terraform plan -input=false -out .tfplan
            '''
          }
        }
      }
    }
    /*
    stage('Apply') {
      when {
        expression { env.BRANCH_NAME == 'master' }
      }
      steps {
        container('this') {
          timeout(time: 5, unit: 'MINUTES') {
            input message: 'Continuing may change or destroy existing infrastructure, be sure to review the plan stage before continuing'
          }
          configFileProvider([configFile(fileId: 'kubeconfig', variable: 'KUBECONFIG')]) {
            sh 'terraform apply -input=false -auto-approve .tfplan'
            sh 'terraform output worker_config_map > worker-config-map.yml'
            sh 'terraform output kubeconfig > kubeconfig'
          }
        }
      }
    }
    */
  }

  post {
    always {
      archiveArtifacts artifacts: 'worker-config-map.yml,kubeconfig', fingerprint: true, allowEmptyArchive: true
    }
  }
}