ECS 从 EC2 迁移到 Fargate

Question

我正在尝试从 Amaxon ECS EC2 迁移到 Fargate。在这里，我根据https://aws.amazon.com/blogs/compute/migrating-your-amazon-ecs-containers-to-aws-fargate/ 的建议进行了一些更改。我正在使用 amazon cloudformation 创建/更新资源。

ECSTaskDefinition:
    Type: AWS::ECS::TaskDefinition
    Properties:
        Family : !Join ["_", [!Ref "AppName", !Ref "ComponentName", !Ref "TargetEnv" ]]
        NetworkMode: "awsvpc"
        ExecutionRoleArn: arn:aws:iam::${AWS::AccountId}:role/ecsTaskExecutionRole
        TaskRoleArn: 
            Fn::Sub: 
                [ 
                    "arn:aws:iam::${AWS::AccountId}:role/exec_dp_${TargetEnv}",
                    { 
                        TargetEnv: !Ref "TargetEnv"
                    }
                ]
        RequiresCompatibilities:
          - "FARGATE"
        Memory: "512"
        Cpu: '256'
        ContainerDefinitions:

这里的问题是当我尝试创建堆栈时，它给了我如下错误：

无法承担服务相关角色。请验证 ECS 服务关联角色是否存在

我也尝试过创建服务相关角色，如下所示：

AwsEcsTaskExecutionRole:
     Type: AWS::IAM::Role
     Properties:
        Path: /
        AssumeRolePolicyDocument:
             Version: 2012-10-17
             Statement:
                     - Effect: Allow
             Principal:
             Service: ecs.amazonaws.com
             Action: sts:AssumeRole
        ManagedPolicyArns:
             - arn:aws:iam::aws:policy/aws-service-role/AmazonECSServiceRolePolicy

然后将其指定为 ExecutionRoleArn: !GetAtt AwsEcsTaskExecutionRole.Arn

它不工作。任何有关的方向都会有帮助。

Answer 1

简答：

运行这个命令：aws iam create-service-linked-role --aws-service-name ecs.amazonaws.com

长答案：

AWS 介绍了Service-Linked Roles。对于旧的 AWS 账户，或者如果您从未在控制台中手动创建过 ECS 集群，则必须运行上述命令才能创建角色。