pipeline {
    agent any

    environment {
        REGISTRY = "myharbor.local:80"
        HARBOR_IP = "192.168.108.101" 
        APP_NAME = "ecommerce-app" 
        IMAGE_NAME = "ecommerce-backend"
        IMAGE_TAG = "${REGISTRY}/library/${IMAGE_NAME}:${env.BRANCH_NAME}-${env.BUILD_NUMBER}"
        NAMESPACE = "ecommerce"
        CONTAINERD_ADDR = "/run/containerd-pod/containerd.sock"
    }

    stages {
        stage('Network Setup') {
            steps {
                // No sudo needed, agent is running as root
                sh "echo '${HARBOR_IP} myharbor.local' >> /etc/hosts"
            }
        }

        stage('Build Image') {
            steps {
                script {
                    // Ensure directories exist for BuildKit
                    sh "mkdir -p /run/buildkit && chmod 777 /run/buildkit"
                    
                    // Start buildkitd in background if not running
                    sh """
                    if ! pgrep buildkitd > /dev/null; then
                        echo "Starting buildkitd..."
                        nohup buildkitd --addr unix:///run/buildkit/buildkitd.sock > /tmp/buildkitd.log 2>&1 &
                        sleep 10
                    fi
                    """
                    
                    sh "nerdctl --address ${CONTAINERD_ADDR} build --insecure-registry -t ${IMAGE_TAG} ."
                }
            }
        }

        stage('Push to Harbor') {
            steps {
                script {
                    withCredentials([usernamePassword(credentialsId: 'harbor-creds', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
                        sh "echo '${PASS}' | nerdctl --address ${CONTAINERD_ADDR} login ${REGISTRY} -u ${USER} --password-stdin --insecure-registry"
                        sh "nerdctl --address ${CONTAINERD_ADDR} push ${IMAGE_TAG} --insecure-registry"
                    }
                }
            }
        }

        stage('Deploy') {
            steps {
                script {
                    withCredentials([file(credentialsId: 'k8s-config', variable: 'KUBECONFIG')]) {
                        sh """
                        kubectl --kubeconfig=${KUBECONFIG} patch deployment ${APP_NAME} -n ${NAMESPACE} --patch \
                        '{"spec": {"template": {"spec": {"containers": [{"name": "${APP_NAME}", "image": "${IMAGE_TAG}", "imagePullPolicy": "Never"}]}}}}'
                        """
                    }
                }
            }
        }
    }
}