"Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable."
"Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable."
我正在尝试构建一个容器映像，稍后我将使用它来更新虚拟机内部的代码。 docker 图像工作正常，因为我可以在我的终端内构建和 运行 它。但是，当我尝试将其部署到云 运行 时，我一直收到错误消息：“云 运行 错误：容器无法启动。无法启动，然后监听 PORT 环境变量定义的端口”我该如何解决这个错误？
构建日志包含以下内容：
Deploying container to Cloud Run service [SERVICE] in project [PROJECT_ID] region [REGION]
Deploying...
Creating Revision.......................................................................................................................................................................failed
Deployment failed
ERROR: (gcloud.run.deploy) Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.
修订日志包含以下内容：
{
"protoPayload": {
"@type": "type.googleapis.com/google.cloud.audit.AuditLog",
"status": {
"code": 9,
"message": "Ready condition status changed to False for Revision {REVISION_NAME} with message: Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.\n\nLogs URL:{URL_LINK}"
},
"serviceName": "run.googleapis.com",
"resourceName": "{REVISION_NAME}",
"response": {
"metadata": {
"name": "{REVISION_NAME}",
"namespace": "{NAMESPACE}",
"selfLink": "{SELFLINK}",
"uid": "{UID}",
"resourceVersion": "{RESOURCEVER}",
"generation": 1,
"creationTimestamp": "{TIMESTAMP}",
"labels": {
"serving.knative.dev/route": "{SERVICE}",
"serving.knative.dev/configuration": "{SERVICE}",
"serving.knative.dev/configurationGeneration": "15",
"serving.knative.dev/service": "{SERVICE}",
"serving.knative.dev/serviceUid": "{SERVICE_UID}",
"cloud.googleapis.com/location": "{REGION}"
},
"annotations": {
"run.googleapis.com/client-name": "gcloud",
"serving.knative.dev/creator": "{NAMESPACE}@cloudbuild.gserviceaccount.com",
"client.knative.dev/user-image": "gcr.io/{PROJECT_ID}/{IMAGE}",
"run.googleapis.com/client-version": "357.0.0",
"autoscaling.knative.dev/maxScale": "100"
},
"ownerReferences": [
{
"kind": "Configuration",
"name": "{SERVICE}",
"uid": "{UID}",
"apiVersion": "serving.knative.dev/v1",
"controller": true,
"blockOwnerDeletion": true
}
]
},
"apiVersion": "serving.knative.dev/v1",
"kind": "Revision",
"spec": {
"containerConcurrency": 80,
"timeoutSeconds": 300,
"serviceAccountName": "{NAMESPACE}-compute@developer.gserviceaccount.com",
"containers": [
{
"image": "gcr.io/{PROJECT_ID}/{IMAGE}",
"ports": [
{
"name": "h2c",
"containerPort": 8080
}
],
"resources": {
"limits": {
"cpu": "1000m",
"memory": "512Mi"
}
}
}
]
},
"status": {
"observedGeneration": 1,
"conditions": [
{
"type": "Ready",
"status": "False",
"reason": "HealthCheckContainerError",
"message": "Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.\n\nLogs URL:{LOG_LINK}",
"lastTransitionTime": "{TIME}"
},
{
"type": "Active",
"status": "Unknown",
"reason": "Reserve",
"lastTransitionTime": "{TIME}",
"severity": "Info"
},
{
"type": "ContainerHealthy",
"status": "False",
"reason": "HealthCheckContainerError",
"message": "Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.\n\nLogs URL:{LOG_LINK}",
"lastTransitionTime": "{TIME}"
},
{
"type": "ResourcesAvailable",
"status": "True",
"lastTransitionTime": "{TIME}"
},
{
"type": "Retry",
"status": "True",
"reason": "ImmediateRetry",
"message": "System will retry after 0:00:00 from lastTransitionTime for attempt 0.",
"lastTransitionTime": "{TIME}",
"severity": "Info"
}
],
"logUrl": "{LOG_LINK}",
"imageDigest": "gcr.io/{PROJECT_ID}/{IMAGE_SHA}"
},
"@type": "type.googleapis.com/google.cloud.run.v1.Revision"
}
},
"insertId": "{ID}",
"resource": {
"type": "cloud_run_revision",
"labels": {
"location": "{REGION}",
"configuration_name": "{SERVICE}",
"service_name": "{SERVICE}",
"project_id": "{PROJECT_ID}",
"revision_name": "{REVISION_NAME}"
}
},
"timestamp": "{TIME}",
"severity": "ERROR",
"logName": "projects/{PROJECT_ID}/logs/cloudaudit.googleapis.com%2Fsystem_event",
"receiveTimestamp": "{TIME}"
}
这是我的 cloudbuild.yaml:
steps:
- name: 'gcr.io/cloud-builders/docker'
args: ['build', '-t', 'gcr.io/PROJECT_ID/IMAGE', '.']
- name: 'gcr.io/cloud-builders/docker'
args: ['push', 'gcr.io/PROJECT_ID/IMAGE']
- name: 'gcr.io/google.com/cloudsdktool/cloud-sdk'
entrypoint: gcloud
args: ['run', 'deploy', 'SERVICE-NAME', '--image', 'gcr.io/PROJECT_ID/IMAGE', '--region', 'REGION', '--port', '8080']
images:
- gcr.io/PROJECT_ID/IMAGE
这是我的 Dockerfile：
FROM python:3.9.7-slim-buster
WORKDIR /app
COPY . .
CMD [ "python3", "hello.py" ]
这是hello.py中的代码：
print("Hello World")
当 Cloud 运行 启动您的容器时，会向容器发送健康检查。您的容器没有响应健康检查。因此，Cloud 运行 确定您的服务失败。
云 运行 要求容器提供 service/process/program 侦听和响应 HTTP 请求。
您的 hello.py 文件仅将消息打印到标准输出。您的程序没有启动进程来侦听请求。
将您的示例转换为工作程序的一个非常简单的示例：
import os
from flask import Flask
app = Flask(__name__)
@app.route('/')
def home():
return "Hello world"
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0', port=int(os.environ.get('PORT', 8080)))
注意：您需要将文件 requirements.txt 添加到您的构建中以包含 Flask。在与 Dockerfile.
相同的位置创建 requirements.txt
requirements.txt:
Flask==2.0.1
我正在尝试构建一个容器映像，稍后我将使用它来更新虚拟机内部的代码。 docker 图像工作正常，因为我可以在我的终端内构建和 运行 它。但是，当我尝试将其部署到云 运行 时，我一直收到错误消息：“云 运行 错误：容器无法启动。无法启动，然后监听 PORT 环境变量定义的端口”我该如何解决这个错误？
构建日志包含以下内容：
Deploying container to Cloud Run service [SERVICE] in project [PROJECT_ID] region [REGION]
Deploying...
Creating Revision.......................................................................................................................................................................failed
Deployment failed
ERROR: (gcloud.run.deploy) Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.
修订日志包含以下内容：
{
"protoPayload": {
"@type": "type.googleapis.com/google.cloud.audit.AuditLog",
"status": {
"code": 9,
"message": "Ready condition status changed to False for Revision {REVISION_NAME} with message: Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.\n\nLogs URL:{URL_LINK}"
},
"serviceName": "run.googleapis.com",
"resourceName": "{REVISION_NAME}",
"response": {
"metadata": {
"name": "{REVISION_NAME}",
"namespace": "{NAMESPACE}",
"selfLink": "{SELFLINK}",
"uid": "{UID}",
"resourceVersion": "{RESOURCEVER}",
"generation": 1,
"creationTimestamp": "{TIMESTAMP}",
"labels": {
"serving.knative.dev/route": "{SERVICE}",
"serving.knative.dev/configuration": "{SERVICE}",
"serving.knative.dev/configurationGeneration": "15",
"serving.knative.dev/service": "{SERVICE}",
"serving.knative.dev/serviceUid": "{SERVICE_UID}",
"cloud.googleapis.com/location": "{REGION}"
},
"annotations": {
"run.googleapis.com/client-name": "gcloud",
"serving.knative.dev/creator": "{NAMESPACE}@cloudbuild.gserviceaccount.com",
"client.knative.dev/user-image": "gcr.io/{PROJECT_ID}/{IMAGE}",
"run.googleapis.com/client-version": "357.0.0",
"autoscaling.knative.dev/maxScale": "100"
},
"ownerReferences": [
{
"kind": "Configuration",
"name": "{SERVICE}",
"uid": "{UID}",
"apiVersion": "serving.knative.dev/v1",
"controller": true,
"blockOwnerDeletion": true
}
]
},
"apiVersion": "serving.knative.dev/v1",
"kind": "Revision",
"spec": {
"containerConcurrency": 80,
"timeoutSeconds": 300,
"serviceAccountName": "{NAMESPACE}-compute@developer.gserviceaccount.com",
"containers": [
{
"image": "gcr.io/{PROJECT_ID}/{IMAGE}",
"ports": [
{
"name": "h2c",
"containerPort": 8080
}
],
"resources": {
"limits": {
"cpu": "1000m",
"memory": "512Mi"
}
}
}
]
},
"status": {
"observedGeneration": 1,
"conditions": [
{
"type": "Ready",
"status": "False",
"reason": "HealthCheckContainerError",
"message": "Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.\n\nLogs URL:{LOG_LINK}",
"lastTransitionTime": "{TIME}"
},
{
"type": "Active",
"status": "Unknown",
"reason": "Reserve",
"lastTransitionTime": "{TIME}",
"severity": "Info"
},
{
"type": "ContainerHealthy",
"status": "False",
"reason": "HealthCheckContainerError",
"message": "Cloud Run error: Container failed to start. Failed to start and then listen on the port defined by the PORT environment variable. Logs for this revision might contain more information.\n\nLogs URL:{LOG_LINK}",
"lastTransitionTime": "{TIME}"
},
{
"type": "ResourcesAvailable",
"status": "True",
"lastTransitionTime": "{TIME}"
},
{
"type": "Retry",
"status": "True",
"reason": "ImmediateRetry",
"message": "System will retry after 0:00:00 from lastTransitionTime for attempt 0.",
"lastTransitionTime": "{TIME}",
"severity": "Info"
}
],
"logUrl": "{LOG_LINK}",
"imageDigest": "gcr.io/{PROJECT_ID}/{IMAGE_SHA}"
},
"@type": "type.googleapis.com/google.cloud.run.v1.Revision"
}
},
"insertId": "{ID}",
"resource": {
"type": "cloud_run_revision",
"labels": {
"location": "{REGION}",
"configuration_name": "{SERVICE}",
"service_name": "{SERVICE}",
"project_id": "{PROJECT_ID}",
"revision_name": "{REVISION_NAME}"
}
},
"timestamp": "{TIME}",
"severity": "ERROR",
"logName": "projects/{PROJECT_ID}/logs/cloudaudit.googleapis.com%2Fsystem_event",
"receiveTimestamp": "{TIME}"
}
这是我的 cloudbuild.yaml:
steps:
- name: 'gcr.io/cloud-builders/docker'
args: ['build', '-t', 'gcr.io/PROJECT_ID/IMAGE', '.']
- name: 'gcr.io/cloud-builders/docker'
args: ['push', 'gcr.io/PROJECT_ID/IMAGE']
- name: 'gcr.io/google.com/cloudsdktool/cloud-sdk'
entrypoint: gcloud
args: ['run', 'deploy', 'SERVICE-NAME', '--image', 'gcr.io/PROJECT_ID/IMAGE', '--region', 'REGION', '--port', '8080']
images:
- gcr.io/PROJECT_ID/IMAGE
这是我的 Dockerfile：
FROM python:3.9.7-slim-buster
WORKDIR /app
COPY . .
CMD [ "python3", "hello.py" ]
这是hello.py中的代码：
print("Hello World")
当 Cloud 运行 启动您的容器时，会向容器发送健康检查。您的容器没有响应健康检查。因此，Cloud 运行 确定您的服务失败。
云 运行 要求容器提供 service/process/program 侦听和响应 HTTP 请求。
您的 hello.py 文件仅将消息打印到标准输出。您的程序没有启动进程来侦听请求。
将您的示例转换为工作程序的一个非常简单的示例：
import os
from flask import Flask
app = Flask(__name__)
@app.route('/')
def home():
return "Hello world"
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0', port=int(os.environ.get('PORT', 8080)))
注意：您需要将文件 requirements.txt 添加到您的构建中以包含 Flask。在与 Dockerfile.
相同的位置创建 requirements.txtrequirements.txt:
Flask==2.0.1