Question

我有一个配置为使用awsvpc网络模式的任务定义。根据{{3}}：

awsvpc网络模式仅支持专用子网。由于任务不接收公共IP地址，因此NAT网关是出站互联网访问和入站互联网流量所需应该通过负载均衡器进行路由。

我在公共子网（具有Internet网关）中设置了NAT网关，并在私有子网中配置了路由表，以将流量发送到NAT网关。但是，当我想创建一个驻留在专用子网中的任务时，会得到：

Run tasks failed Reasons : ["ATTRIBUTE"]. Learn more

如果我选择EC2本身使用的公共子网，它将创建任务。但是我无法在任务中访问Internet。
我的最终目标是从EC2中的任务访问Internet。

更新：我的任务定义：

{
"ipcMode": null,
"executionRoleArn": "arn:aws:iam::783294628224:role/ecsTaskExecutionRole",
"containerDefinitions": [
{
"dnsSearchDomains": null,
"logConfiguration": {
"logDriver": "awslogs",
"options": {
"awslogs-group": "/ecs/TEST-Task-Definition",
"awslogs-region": "us-west-2",
"awslogs-stream-prefix": "ecs"
}
},
"entryPoint": null,
"portMappings": [
{
"hostPort": 8500,
"protocol": "tcp",
"containerPort": 8500
},
{
"hostPort": 8501,
"protocol": "tcp",
"containerPort": 8501
}
],
"command": null,
"linuxParameters": null,
"cpu": 0,
"environment": [],
"resourceRequirements": null,
"ulimits": null,
"dnsServers": null,
"mountPoints": [],
"workingDirectory": null,
"secrets": null,
"dockerSecurityOptions": null,
"memory": null,
"memoryReservation": 500,
"volumesFrom": [],
"stopTimeout": null,
"image": "<MY ECR REPOSITORY ADDRESS FOR IMAGE 1>",
"startTimeout": null,
"dependsOn": null,
"disableNetworking": null,
"interactive": null,
"healthCheck": null,
"essential": true,
"links": null,
"hostname": null,
"extraHosts": null,
"pseudoTerminal": null,
"user": "root",
"readonlyRootFilesystem": null,
"dockerLabels": null,
"systemControls": null,
"privileged": true,
"name": "backend"
},
{
"dnsSearchDomains": null,
"logConfiguration": {
"logDriver": "awslogs",
"options": {
"awslogs-group": "/ecs/TEST-Task-Definition",
"awslogs-region": "us-west-2",
"awslogs-stream-prefix": "ecs"
}
},
"entryPoint": null,
"portMappings": [
{
"hostPort": 80,
"protocol": "tcp",
"containerPort": 80
}
],
"command": null,
"linuxParameters": null,
"cpu": 0,
"environment": [],
"resourceRequirements": null,
"ulimits": null,
"dnsServers": null,
"mountPoints": [],
"workingDirectory": null,
"secrets": null,
"dockerSecurityOptions": null,
"memory": null,
"memoryReservation": 500,
"volumesFrom": [],
"stopTimeout": null,
"image": "<MY ECR REPOSITORY ADDRESS FOR IMAGE 2>",
"startTimeout": null,
"dependsOn": null,
"disableNetworking": null,
"interactive": null,
"healthCheck": null,
"essential": true,
"links": null,
"hostname": null,
"extraHosts": null,
"pseudoTerminal": null,
"user": "root",
"readonlyRootFilesystem": null,
"dockerLabels": null,
"systemControls": null,
"privileged": true,
"name": "frontend"
}
],
"memory": null,
"taskRoleArn": "arn:aws:iam::783294628224:role/ecsTaskExecutionRole",
"family": "TEST-Task-Definition",
"pidMode": null,
"requiresCompatibilities": [
"EC2"
],
"networkMode": "awsvpc",
"cpu": null,
"proxyConfiguration": null,
"volumes": [],
"placementConstraints": []
}

Answer 1

如果您不使用https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-optimized_AMI.html

确保已将座席参数环境密钥ECS_ENABLE_TASK_ENI设置为true

Answer 2

我终于成功解决了我的问题。据我所知，在“任务定义”中使用awsvpc网络模式时，必须在EC2子网中创建任务（或服务）。另外，如果您希望您的任务可以访问Internet，则应在另一个子网中创建NAT网关，该子网具有到位于VPC中的Internet网关的默认路由。在任务/服务/ EC2子网中，您必须向NAT网关添加默认路由。发生的唯一问题是您不能再使用SSH了。如果您想使用EC2，我认为您应该设置负载均衡器。

使用EC2时，ECS群集无法在专用子网中运行任务

2 个答案: