无法使用 Session Manager 连接 EC2 实例

Question

我正在使用 Cloudformation 将 EC2 实例部署到不同的 VPC。使用 cloudformation，我创建了一个角色和角色配置文件并将其附加到 EC2 实例 [有问题的角色是 AmazonEC2RoleforSSM ]。然而，我无法使用理智连接到 EC2。 这是 Cloudformation 代码： AWS模板格式版本：2010-09-09 描述：测试和开发环境

Resources:
  VPCdev:
    Type: "AWS::EC2::VPC"
    Properties:
      CidrBlock: 10.0.0.0/16
      EnableDnsHostnames: true
      EnableDnsSupport: true
      InstanceTenancy: default
      Tags:
        - Key: Name
          Value: VPCdev
  VPCtest:
    Type: "AWS::EC2::VPC"
    Properties:
      CidrBlock: 192.168.0.0/16
      EnableDnsHostnames: true
      EnableDnsSupport: true
      InstanceTenancy: default
      Tags:
        - Key: Name
          Value: VPCtest
  SubnetDev:
    Type: "AWS::EC2::Subnet"
    Properties:
      AvailabilityZone: !Select [0, !GetAZs '']
      CidrBlock: 10.0.1.0/24
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: SubnetDev
      VpcId: !Ref VPCdev
  SubnetTest:
    Type: "AWS::EC2::Subnet"
    Properties:
      AvailabilityZone: !Select [0, !GetAZs '']
      CidrBlock: 192.168.1.0/24
      MapPublicIpOnLaunch: true
      Tags:
        - Key: Name
          Value: Subnettest
      VpcId: !Ref VPCtest
  IGWdev:
    Type: "AWS::EC2::InternetGateway"
    Properties:
      Tags:
        - Key: Name
          Value: IGWdev
  IGWtest:
    Type: "AWS::EC2::InternetGateway"
    Properties:
      Tags:
        - Key: Name
          Value: IGWtest

  IGWdevattachment:
    Type: "AWS::EC2::VPCGatewayAttachment"
    Properties:
      InternetGatewayId: !Ref IGWdev
      VpcId: !Ref VPCdev
  IGWtestattachment:
    Type: "AWS::EC2::VPCGatewayAttachment"
    Properties:
      InternetGatewayId: !Ref IGWtest
      VpcId: !Ref VPCtest

  RouteTabledev:
    Type: "AWS::EC2::RouteTable"
    Properties:
      Tags:
        - Key: Name
          Value: RouteTabledev
      VpcId: !Ref VPCdev
  RouteTabletest:
    Type: "AWS::EC2::RouteTable"
    Properties:
      Tags:
        - Key: Name
          Value: RouteTabletest
      VpcId: !Ref VPCtest

  defaultdev:
    Type: "AWS::EC2::Route"
    Properties:
      DestinationCidrBlock: 0.0.0.0/0
      GatewayId: !Ref IGWdev
      RouteTableId: !Ref RouteTabledev

  defaulttest:
    Type: "AWS::EC2::Route"
    Properties:
      DestinationCidrBlock: 0.0.0.0/0
      GatewayId: !Ref IGWtest
      RouteTableId: !Ref RouteTabletest

  Ec2InstanceProfile:
    Type: AWS::IAM::InstanceProfile
    Properties:
      Path: /
      Roles: [ !Ref Ec2InstanceRole ]
  Ec2InstanceRole:
    Type: AWS::IAM::Role
    Properties:
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AmazonEC2RoleforSSM
      AssumeRolePolicyDocument:
        Statement:
          - Effect: Allow
            Principal:
              Service: [ ec2.amazonaws.com ]
            Action:
              - sts:AssumeRole
      Path: /

  sgdev:
    Type: "AWS::EC2::SecurityGroup"
    Properties:
      GroupDescription: sgdev
      GroupName: sgdev
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 80
          ToPort: 80
          CidrIp: 0.0.0.0/0
      Tags:
        - Key: Name
          Value: sgdev
      VpcId: !Ref VPCdev
  sgtest:
    Type: "AWS::EC2::SecurityGroup"
    Properties:
      GroupDescription: sgtest
      GroupName: sgtest
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 80
          ToPort: 80
          CidrIp: 0.0.0.0/0
      Tags:
        - Key: Name
          Value: sgtest
      VpcId: !Ref VPCtest

  instancedev:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: ami-02d55cb47e83a99a0
      InstanceType: "t2.micro"
      IamInstanceProfile: !Ref Ec2InstanceProfile
      NetworkInterfaces:
        - AssociatePublicIpAddress: true
          DeviceIndex: 0
          GroupSet:
            - !Ref sgdev
          SubnetId: !Ref SubnetDev
      Tags:
        - Key: Name
          Value: dev

  instancetest:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: ami-02d55cb47e83a99a0
      InstanceType: "t2.micro"
      IamInstanceProfile: !Ref Ec2InstanceProfile
      NetworkInterfaces:
        - AssociatePublicIpAddress: true
          DeviceIndex: 0
          GroupSet:
            - !Ref sgtest
          SubnetId: !Ref SubnetTest
      Tags:
        - Key: Name
          Value: test  

还附上了错误截图。 P.S：我尝试手动执行它并且它有效。似乎不明白我哪里出错了，堆栈已成功构建，所有资源也已部署。

我使用的是 Ubuntu 18.04 LTS Image，它预装了 Session Manager

Answer 1

它不起作用，因为您的子网是私有的，它们没有任何互联网连接。

尽管您创建了公共路由表，但它们不关联与任何子网。

以下内容应该会有所帮助：

  MyRouteTableAssoc1:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties: 
      RouteTableId: !Ref RouteTabledev
      SubnetId: !Ref SubnetDev    

  MyRouteTableAssoc2:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties: 
      RouteTableId: !Ref RouteTabletest
      SubnetId: !Ref SubnetTest