pipeline {
    agent {
        kubernetes {
            yaml '''
apiVersion: v1
kind: Pod
spec:
  serviceAccountName: jenkins
  containers:
    - name: kaniko
      image: gcr.io/kaniko-project/executor:v1.23.2-debug
      command: ["sleep"]
      args: ["999999"]
      volumeMounts:
        - name: docker-config
          mountPath: /kaniko/.docker
    - name: kubectl
      image: alpine/k8s:1.34.12
      command: ["sleep"]
      args: ["999999"]
  volumes:
    - name: docker-config
      secret:
        secretName: harbor-dockerconfig
        items:
          - key: .dockerconfigjson
            path: config.json
'''
        }
    }

    options {
        timestamps()
        buildDiscarder(logRotator(numToKeepStr: '10'))
        timeout(time: 20, unit: 'MINUTES')
    }

    environment {
        REGISTRY = 'harbor.nineleaves.cn'
        IMAGE    = 'harbor.nineleaves.cn/apps/blog'
        NS       = 'apps'
    }

    stages {
        stage('准备') {
            steps {
                echo "构建号 #${env.BUILD_NUMBER}，分支 ${env.BRANCH_NAME ?: 'main'}"
                sh 'ls -la'
            }
        }

        stage('构建镜像并推送 Harbor') {
            steps {
                container('kaniko') {
                    sh '''
                    set -e
                    TAG="build-${BUILD_NUMBER}"
                    echo "开始构建 ${IMAGE}:${TAG}"
                    /kaniko/executor \
                      --context=dir://${WORKSPACE} \
                      --dockerfile=${WORKSPACE}/Dockerfile \
                      --destination=${IMAGE}:${TAG} \
                      --destination=${IMAGE}:latest \
                      --skip-tls-verify \
                      --skip-tls-verify-pull \
                      --cache=false \
                      --verbosity=info
                    echo "镜像已推送: ${IMAGE}:${TAG}"
                    '''
                }
            }
        }

        stage('部署到 Kubernetes') {
            steps {
                container('kubectl') {
                    sh '''
                    set -e
                    TAG="build-${BUILD_NUMBER}"
                    kubectl apply -f ${WORKSPACE}/k8s/deployment.yaml
                    kubectl -n ${NS} set image deployment/blog blog=${IMAGE}:${TAG}
                    kubectl -n ${NS} rollout status deployment/blog --timeout=180s
                    kubectl -n ${NS} get pods -l app=blog
                    '''
                }
            }
        }

        stage('冒烟测试') {
            steps {
                container('kubectl') {
                    sh '''
                    set -e
                    for i in $(seq 1 20); do
                      CODE=$(curl -s -o /dev/null -w "%{http_code}" http://blog.apps.svc.cluster.local/healthz || true)
                      if [ "$CODE" = "200" ]; then echo "健康检查通过 (第 $i 次)"; exit 0; fi
                      echo "第 $i 次: $CODE"; sleep 3
                    done
                    echo "健康检查失败"; exit 1
                    '''
                }
            }
        }
    }

    post {
        success {
            echo "✅ 部署成功：https://blog.nineleaves.cn"
        }
        failure {
            echo "❌ 流水线失败，查看上面的日志"
        }
    }
}