在执行所有用户数据之前，Cloudformation堆栈显示为完成

Question

在我的cloudformation堆栈中，我有一个启动配置，它在用户数据中运行ansible脚本。这里的问题是，即使ansible脚本没有完成精算，我的堆栈状态也显示为CREATE_COMPLETE。在我ssh进入ec2实例后，我看到了日志，其中显示ansible执行仍在进行中。我的样例cloudformation堆栈json是这样的：

"OpenShiftMasterASLaunchConfig": {
      "Type": "AWS::AutoScaling::LaunchConfiguration",
      "Metadata": {
        "AWS::CloudFormation::Init": {
          "configSets": {
            "quickstart": ["GetPublicKey", "AddPublicKey", "rpms", "ConfigSSHD", "DockerGroup", "DockerSecurity", "InstallAWSCLI", "SetPrivateKey", "StartServices"]
          },
          "rpms": {
            "packages": {
              "yum": {
                "epel-release": [],
                "NetworkManager": [],
                "ansible": [],
                "docker": [],
                "git": [],
                "python-boto": [],
                "python-cryptography": [],
                "python-lxml": [],
                "python-pip": [],
                "origin-docker-excluder": [],
                "centos-release-openshift-origin": [],
                "atomic-openshift-utils": [],
                "origin-clients": [],
                "awslogs" : []
              }
            }
          },
          "Properties": {
        "AssociatePublicIpAddress" : "true",
        "KeyName": {
          "Ref": "KeyPairName"
        },
        "ImageId": {
          "Fn::FindInMap": [
            "AWSAMIRegionMap",
            {
              "Ref": "AWS::Region"
            },
            "CENTOS7HVM"
          ]
        },
        "BlockDeviceMappings": [{
          "DeviceName": "/dev/sda1",
          "Ebs": {
            "VolumeSize": "100"
          }
        }],
        "InstanceMonitoring": "true",
        "IamInstanceProfile": {
          "Ref": "SetupRoleProfile"
        },
        "InstanceType": {
          "Ref": "MasterInstanceType"
        },
        "SecurityGroups": [{
          "Ref": "OpenShiftSecurityGroup"
        }],
        "UserData": {
          "Fn::Base64": {
            "Fn::Join": [
              "", [
                "bash /local/scripts/openshift-origin-bootstrap-master.sh\n",

                "ansible-playbook -i /local/ansible/inventory/hosts.cluster /local/openshift-ansible/playbooks/prerequisites.yml >> /local/prereq.log\n",

                "ansible-playbook -i /local/ansible/inventory/hosts.cluster /local/openshift-ansible/playbooks/deploy_cluster.yml -vvv > /local/cluster.log\n",

                "bash /local/scripts/configure_openebs.sh\n"
              ]
            ]
          }
        }
      }

这只是一个示例。当堆栈显示为完成时，此处的ansible-playbook命令仍在执行中。有没有办法延迟堆栈上的create条件，以确保首先执行所有用户数据。我尝试使用wait condition，但它没有给出预期的结果。

Answer 1

将CreationPolicy与您的资源关联，以防止其状态达到“创建完成”，直到您的userdata脚本向CloudFormation发出信号(在userdata的末尾)。这是一个example。