简而言之： 我们有在 Google App Engine Nodejs 运行时、flex 环境中运行的网络应用程序。从 5 天前开始，我们所有的部署都开始失败，原因如下：
ERROR: (gcloud.app.deploy) Error Response: [4] Timed out waiting for the app infrastructure to become healthy.
完整的错误堆栈跟踪：
Updating service [default] (this may take several minutes)...\DEBUG: Operation [apps/PROJECT_ID/operations/45d6fec1-9261-41d2-943a-648976b971ed] not complete. Waiting to retry.
Updating service [default] (this may take several minutes)...-DEBUG: Operation [apps/PROJECT_ID/operations/45d6fec1-9261-41d2-943a-648976b971ed] complete. Result: {
"metadata": {
"user": "SOME_EMAIL@mail.com",
"target": "apps/PROJECT_ID/services/default/versions/release-0-6-3",
"@type": "type.googleapis.com/google.appengine.v1.OperationMetadataV1",
"insertTime": "2018-02-19T06:08:56.439Z",
"method": "google.appengine.v1.Versions.CreateVersion"
},
"done": true,
"name": "apps/PROJECT_ID/operations/45d6fec1-9261-41d2-943a-648976b971ed",
"error": {
"message": "Timed out waiting for the app …