ALIYUN::ROS::WaitConditionHandle

The ALIYUN::ROS::WaitConditionHandle type can be used to create an instance for sending and receiving messages during UserData execution.

Syntax

{
    "Type" : "ALIYUN::ROS::WaitConditionHandle",
    "Properties" : {
    }
}

Return values

Fn::GetAtt

• CurlCli: A cURL command is generated by the resource and used to send the UserData execution results or status to ROS.

Example

{
  "ROSTemplateFormatVersion" : "2015-09-01",
  "Resources" : {
    "WebServer": {
      "Type": "ALIYUN::ECS::Instance",
      "Properties": {
        "ImageId" : "centos6u5_64_40G_cloudinit_20160728.raw",
        "InstanceType": "ecs.s2.large",
        "SecurityGroupId": "sg-94q49gota",
        "IoOptimized": "optimized",
        "VSwitchId": "vsw-94vdvonyi",
        "VpcId": "vpc-949uzr8c9",
        "SystemDiskCategory": "cloud_ssd",
        "UserData": {"Fn::Replace": [
          {"ros-notify": {"Fn::GetAtt": ["WaitConHandle", "CurlCli"]}},
          {"Fn::Join": ["", [
             "#!/bin/sh\n",
             "mkdir ~/test_ros\n",
             "print hello > ~/1.txt\n",
             "ros-notify \n",
             "ros-notify -d '{\\"id\\" : \\"1\\"}'\n"
         ]]}]}
      }
    },
    "WaitConHandle": {
        "Type": "ALIYUN::ROS::WaitConditionHandle"
    },
    "WaitCondition": {
      "Type": "ALIYUN::ROS::WaitCondition",
      "Properties": {
        "Handle": {"Ref": "WaitConHandle"},
        "Timeout": 60,
        "Count": 2
      }
    },
  },
  "Outputs": {
    "InstanceId": {
         "Value" : {"Fn::GetAtt": ["WebServer","InstanceId"]}
    },
    "PublicIp": {
         "Value" : {"Fn::GetAtt": ["WebServer","PublicIp"]}
    },
    "CurlCli" : {
       "Value" : { "Fn::GetAtt": ["WaitConHandle", "CurlCli"] }
    },
    "Data" : {
       "Value" : { "Fn::GetAtt": ["WaitCondition", "Data"] }
     }
  }
}