pipeline {
    agent any
    environment {
        REGISTRY = "192.168.108.200:80"
        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"
        BK_SOCK = "/tmp/buildkitd.sock"
    }
    stages {
        stage('Build & Push') {
            steps {
                script {
                    sh """
                    # Install tools if pod is fresh
                    if ! command -v buildkitd >/dev/null; then
                        curl -L https://github.com/moby/buildkit/releases/download/v0.12.5/buildkit-v0.12.5.linux-amd64.tar.gz | tar -xz -C /usr/local/bin/ --strip-components=1
                        ln -sf /usr/local/bin/buildctl /usr/bin/buildctl
                    fi
                    pkill buildkitd || true
                    export JENKINS_NODE_COOKIE=dontKillMe
                    nohup buildkitd --addr unix://${BK_SOCK} > /tmp/buildkitd.log 2>&1 &
                    for i in \$(seq 1 20); do [ -S ${BK_SOCK} ] && break; sleep 1; done
                    
                    export BUILDKIT_HOST=unix://${BK_SOCK}
                    nerdctl --address ${CONTAINERD_ADDR} build --insecure-registry -t ${IMAGE_TAG} .
                    """
                    withCredentials([usernamePassword(credentialsId: 'harbor-creds', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
                        sh "echo '${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 ${NAMESPACE} --patch \
                        '{"spec": {"template": {"spec": {
                            "imagePullSecrets": [{"name": "harbor-pull-secret"}],
                            "containers": [{"name": "${APP_NAME}", "image": "${IMAGE_TAG}", "imagePullPolicy": "Always"}]
                        }}}}'
                        kubectl --kubeconfig=${KUBECONFIG} rollout status deployment/${APP_NAME} -n ${NAMESPACE} --timeout=90s
                        """
                    }
                }
            }
        }
    }
}