Python版GCF函数测试失败：无法获取构建器镜像

问题详情 #

日常使用Google Cloud Run开发Python函数，此前页面顶部的Test Function功能（仅支持Python、Node.js）可正常测试，本周初使用无异常，项目权限未变更。当前点击该功能时触发构建错误，所有Python版本均受影响，但Node.js的Test Function功能正常。函数可正常部署，仅测试功能异常，已提交Google问题工单。

错误日志 #

[5:37:05 PM] - Error: Command failed: cd /gcf-working-dir/function-sources && pack build gcf-ui-function --builder gcr.io/gae-runtimes/buildpacks/google-gae-22/python/builder --pull-policy if-not-present --env GOOGLE_FUNCTION_TARGET=hello_http --env GOOGLE_FUNCTION_SIGNATURE_TYPE=cloudevent --env GOOGLE_DEVMODE=1 --env GOOGLE_RUNTIME_VERSION=3.12
ERROR: failed to build: failed to fetch builder image 'gcr.io/gae-runtimes/buildpacks/google-gae-22/python/builder:latest': image 'gcr.io/gae-runtimes/buildpacks/google-gae-22/python/builder:latest' does not exist on the daemon: not found

    at checkExecSyncError (node:child_process:826:11)
    at execSync (node:child_process:900:15)
    at buildFunction (/app/app.runfiles/google3/cloud/console/web/functions/external/testing_server/workers/build_function_worker.js:17:38)
    at Object.<anonymous> (/app/app.runfiles/google3/cloud/console/web/functions/external/testing_server/workers/build_function_worker.js:35:131)
    at Module._compile (node:internal/modules/cjs/loader:1095:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1124:10)
    at Module.load (node:internal/modules/cjs/loader:975:32)
    at Function.Module._load (node:internal/modules/cjs/loader:816:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/main/worker_thread:79:12)
    at MessagePort.<anonymous> (node:internal/main/worker_thread:183:24)
ERROR: failed to build: failed to fetch builder image 'gcr.io/gae-runtimes/buildpacks/google-gae-22/python/builder:latest': image 'gcr.io/gae-runtimes/buildpacks/google-gae-22/python/builder:latest' does not exist on the daemon: not found

原因分析与临时解决方案 #

• 核心原因：Test Function功能调用的gcr.io/gae-runtimes/buildpacks/google-gae-22/python/builder:latest构建镜像不存在，推测是Google侧Python构建镜像服务变更（上周1.8版本已停用）导致。
• 临时替代方案：
  • 本地完成函数测试后直接部署，利用Cloud Run部署后的服务端点进行验证。
  • 使用gcloud命令行工具触发函数测试，示例命令：

    gcloud run services invoke 你的服务名称 --region 你的区域 --data '{"key": "value"}'
    

  • 等待Google官方修复对应问题工单。

内容的提问来源于stack exchange，提问作者Alex Mindock