更新 'Jenkinsfile'

Jenkinsfile

@@ -2,7 +2,7 @@ pipeline {
     agent any
 
     environment {
-        DOCKER_IMAGE = "my-web-app:latest"
+        docker_image = "my-web-app:latest"
         K8S_DEPLOYMENT_NAME = "my-web-app-deployment"
     }
 
@@ -10,7 +10,7 @@ pipeline {
         stage('构建镜像') {
             steps {
                 script {
-                    docker.build("${DOCKER_IMAGE}")
+                    docker.build("${docker_image}")
                 }
             }
         }
@@ -19,7 +19,7 @@ pipeline {
                 script {
                     // 假设已经配置了 Docker 认证
                     docker.withRegistry('http://core.harbor.cn', 'registry-credentials') {
-                        docker.image("${DOCKER_IMAGE}").push()
+                        docker.image("${docker_image}").push()
                     }
                 }
             }