helmfile_gc.groovy

#!/usr/bin/env groovy

def call(Map parameters) {
    env = parameters.env
    service = parameters.service
    region = parameters.region

    withCredentials([
        string(credentialsId: 'GITHUB_ACCESS_TOKEN', variable: 'GITHUB_ACCESS_TOKEN')
        ]) {
        sh """
            set -x
            
            export ON_JENKINS="true"
            export TERM=xterm
            
            main(){
                get_kube_config
                remove_old_deploys
            }
            
            get_kube_config(){
                case ${env} in
                    data-dev) account_id=123456789012 ;;
                    data-prod) account_id=123456789012 ;;
                    dev) account_id=123456789012 ;;
                    qa) account_id=123456789012 ;;
                    prod) account_id=123456789012 ;;
                    *) echo "Invalid account, please update case statement in Jenkins scripts" && exit 1 ;;
                esac
                
                echo "Setting AWS Credentials for ${env}"
                session_json=\$(aws sts assume-role --role-arn arn:aws:iam::\${account_id}:role/jenkins-admin-role --role-session-name local-tmp)
                export AWS_ACCESS_KEY_ID=\$(echo "\${session_json}"|jq -r '.Credentials.AccessKeyId')
                export AWS_SECRET_ACCESS_KEY=\$(echo "\${session_json}"|jq -r '.Credentials.SecretAccessKey')
                export AWS_SESSION_TOKEN=\$(echo "\${session_json}"|jq -r '.Credentials.SessionToken')
                
                echo "Setting kube config"
                
                aws eks \
                    update-kubeconfig \
                    --name ${env}-${region}-eks \
                    --region ${region}
            }
            
            remove_old_deploys(){
                helm list \
                    "airflow-data-dev-*" \
                        --output json | \
                            jq -r --arg NAMESPACE "${env}" --arg DAYS 7 '.Releases[] | {
                                Name: .Name,
                                Updated: .Updated | strptime("%a %b %d %H:%M:%S %Y") | mktime,
                                Namespace: .Namespace
                            } | select(
                                .Updated < (now | . - 60*60*24*( \$DAYS | tonumber ) ) and .Namespace != \$NAMESPACE
                            ).Name' | xargs -r -n1 helm delete --purge
            }
            main
        """
    }
}