amazon-web-services - AWS CloudFormation 服务无法放置任务，因为没有容器实例满足其所有要求

Question

我正在尝试使用 ci/cd 管道创建 ECS。我已经定义了 TaskDefination 和 ECSService 以及 VPC。

cloudformation 创建了集群，但在创建 ECSService 时卡住了。

我参加了 ECSService 事件，发现错误“服务 my-service-name 无法放置任务，因为没有容器实例满足其所有要求”。原因:您的集群中未找到容器实例。有关详细信息，请参阅“故障排除”部分。'

我的管道中是否缺少某些内容？

这是我的 TaskDefination 和 ECSService

AWSTemplateFormatVersion: 2010-09-09
Description: The CloudFormation template for the Fargate ECS Cluster.

Parameters:
  Stage:
    Type: String
  ContainerPort:
    Type: Number
  ImageURI:
    Type: String

Resources:

  # Create an ECS Cluster
  Cluster:
    Type: AWS::ECS::Cluster
    Properties:
      ClusterName: !Join ['-', [!Ref Stage, !Ref 'AWS::AccountId', 'Cluster']]

  # Create a VPC
  VPC:
    Type: AWS::EC2::VPC
    Properties: 
      CidrBlock: 10.0.0.0/16
      EnableDnsHostnames: True
      EnableDnsSupport: True

  # Create a Subnet
  SubnetA:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: 10.0.0.0/24
      VpcId: !Ref VPC
      AvailabilityZone: !Join ['', [!Ref "AWS::Region", 'a']]

  # Create a Subnet
  SubnetB:
    Type: AWS::EC2::Subnet
    Properties:
      CidrBlock: 10.0.1.0/24
      VpcId: !Ref VPC
      AvailabilityZone: !Join ['', [!Ref "AWS::Region", 'b']]

  # Create Access Role for ECS-Tasks
  ExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      RoleName: !Join ['-', [!Ref Stage, !Ref 'AWS::AccountId', 'ExecutionRole']]
      AssumeRolePolicyDocument:
        Statement:
          - Effect: Allow
            Principal:
              Service: ecs-tasks.amazonaws.com
            Action: 'sts:AssumeRole'
      ManagedPolicyArns:
        - 'arn:aws:iam::aws:policy/service-role/AmazonECSTaskExecutionRolePolicy'

  # Create a TaskDefinition with container details
  TaskDefinition:
    Type: AWS::ECS::TaskDefinition
    Properties:
      NetworkMode: awsvpc
      RequiresCompatibilities:
        - 'EC2'
      TaskRoleArn: !Ref ExecutionRole
      ExecutionRoleArn: !Ref ExecutionRole
      ContainerDefinitions:
        - Name: !Join ['-', [!Ref Stage, !Ref 'AWS::AccountId', 'Container']]
          Image: !Ref ImageURI
          Cpu: 1024
          Memory: 1024
          PortMappings:
            - ContainerPort: !Ref ContainerPort
              HostPort: !Ref ContainerPort

  # Create an ECS Service and add created Cluster, TaskDefintion, Subnets, TargetGroup and SecurityGroup
  ECSService:
    Type: AWS::ECS::Service
    Properties:
      ServiceName: !Join ['-', [!Ref Stage, !Ref 'AWS::AccountId', 'ECSService']]
      Cluster: !Ref Cluster
      TaskDefinition: !Ref TaskDefinition
      DesiredCount: 1
      LaunchType: EC2
      NetworkConfiguration: 
        AwsvpcConfiguration:
          Subnets:
            - !Ref SubnetA
            - !Ref SubnetB

我已尝试回答已发布的问题。在大多数情况下，人们会在 AWS Web 界面上收到此错误。对我来说 ECS 正在使用 Web 界面工作。我无法使用我的管道让它工作。

Answer 1

您必须明确配置EC2 container instances用于您的 ECS 任务。您当前的 TF 代码不会创建任何 ECS 集群和任务使用的 EC2 实例。