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首頁 系統運維管理 操作指南 自動化任務 動作 Action通用屬性

Action通用屬性

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動作（Action）定義了一個具體的操作，是操作的最小單位。

動作類型

動作分為以下幾種類型：

  • 原子動作（Atom Action）

    • API動作（API Action）

    • 觸發器動作（Trigger Action）

    • 控制類動作（Control Action）

    • 嵌套類動作（ACS::Template）

  • 云產品動作（Cloud Product Action）

    • 彈性計算（ECS）類

    • 關系型數據庫（RDS）類

    • 函數計算（FC）類

    • 釘釘（DingTalk）類

名稱格式

動作（Action）的名稱格式為ACS::<name>。

通用屬性

除非某個Action有特殊說明，否則每個Action都具有以下通用屬性。

---
Tasks:
  - Name: task_name_1
    Action: 'Action類型'
    Description: describe the purpose of the task
    OnError: 'ACS::END/<other-task-name>/ACS::NEXT' # 默認ACS::END
    OnSuccess: 'ACS::NEXT/<other-task-name>/ACS::END' # 默認ACS::NEXT 
    IsCritical: true/false # 默認true
    Properties:
      Service: ECS/RDS/RAM
      API: DeleteInstance/CreateDBInstance/CreateRamRole
      Parameters:
        InstanceId: "i-XXX"
    Outputs:
      Output_parameter_name_1:
        Type: String/List
        ValueSelector": ".Key1"

Action通用定義

  • Name：合法字符為：[a-zA-Z0-9-_]，長度限制200個內，不允許包含冒號（:）。

  • Action：必須為以下類型之一，原子action，云產品動作。以ACS::開頭。

  • Description：描述當前task的用途。

  • Properties：詳細信息，請參見ACS::ExecuteAPI。

流程控制類

  • OnError：ACS::END：默認，此任務出錯時，結束執行。

  • OnSuccess：ACS::END：此任務成功時，結束執行。

  • OnError：ACS::NEXT：此任務失敗時，后續如有任務，繼續向后執行。

  • OnSuccess：ACS::NEXT：默認，此任務成功時，后續如有任務，繼續向后執行。

  • OnError: <task_name>：此任務出錯時執行指定的任務。

  • OnSuccess: <task_name>：此任務成功時執行指定的任務。

  • IsCritical：將一個任務指定為成功完成自動化的關鍵步驟，該選項的默認值為 true。此屬性只會影響最終執行的狀態，若您在某個Action中配置“IsCritical:false”，則即使此Action執行失敗，最終整體的執行狀態仍然會顯示為“成功”。

示例

如下模板：執行云助手命令。

  • YAML格式：

FormatVersion: OOS-2019-06-01
Description: Creates a cloud assistant command and triggers it on one ECS instance.
Parameters:
  regionId:
    Description: The ID of region.
    Type: String
    Default: '{{ ACS::RegionId }}'
  commandContent:
    Description: The content of command.
    Type: String
  instanceId:
    Description: The ID of ECS instance that will invoke command.
    Type: String
    MinLength: 1
    MaxLength: 30
  commandType:
    Description: The type of command.
    Type: String
    AllowedValues:
    - RunBatScript
    - RunPowerShellScript
    - RunShellScript
  workingDir:
    Description: The directory where the created command runs on the ECS instances.
    Type: String
    Default: ""
  timeout:
    Description: The value of the invocation timeout period of a command on ECS instances.
    Type: Number
    Default: 600
Tasks:
- Name: runCommand
  Action: 'ACS::ExecuteAPI'
  Description: Executes a cloud assistant command.
  Properties:
    Service: ECS
    API: RunCommand
    Parameters:
      RegionId: '{{ regionId }}'
      CommandContent: '{{ commandContent }}'
      InstanceIds:
        - '{{instanceId}}'
      Name: '{{ ACS::ExecutionId }}'
      Type: '{{ commandType }}'
      WorkingDir: '{{ workingDir }}'
      Timeout: '{{ timeout }}'
  Outputs:
    invokeId:
      Type: String
      ValueSelector: InvokeId
- Name: untilInvocationReady
  Action: ACS::WaitFor
  Description: Waits for the command to be completed.
  OnError: ACS::END
  Retries: 20
  Properties:
    Service: ECS
    API: DescribeInvocations
    Parameters:
      RegionId: '{{ regionId }}'
      InvokeId: '{{ runCommand.invokeId }}'
    DesiredValues:
    - Finished
    StopRetryValues:
    - Failed
    PropertySelector: Invocations.Invocation[].InvokeStatus
- Name: describeInvocationResults
  Action: ACS::ExecuteAPI
  Description: Views the command output of a cloud assistant command in the specified ECS
    instance.
  Properties:
    Service: ECS
    API: DescribeInvocationResults
    Parameters:
      RegionId: '{{ regionId }}'
      InvokeId: '{{ runCommand.invokeId }}'
  Outputs:
    invocationResult:
      Type: String
      ValueSelector: 'Invocation.InvocationResults.InvocationResult[].Output'
- Name: checkInvocationResult
  Action: 'ACS::CheckFor'
  Description: Check the command exitcode of a cloud assistant command.
  OnError: 'ACS::END'
  Properties:
    Service: ECS
    API: DescribeInvocationResults
    Parameters:
      RegionId: '{{ regionId }}'
      InvokeId: '{{ runCommand.InvokeId }}'
    PropertySelector: 'Invocation.InvocationResults.InvocationResult[].ExitCode'
    DesiredValues:
      - 0
Outputs:
  invocationOutput:
    Type: String
    Value:
      'Fn::Base64Decode': '{{ describeInvocationResults.invocationResult }}'

  • JSON格式：

{
  "FormatVersion": "OOS-2019-06-01",
  "Description": "Creates a cloud assistant command and triggers it on one ECS instance.",
  "Parameters": {
    "regionId": {
      "Description": "The ID of region.",
      "Type": "String",
      "Default": "{{ ACS::RegionId }}"
    },
    "commandContent": {
      "Description": "The content of command.",
      "Type": "String"
    },
    "instanceId": {
      "Description": "The ID of ECS instance that will invoke command.",
      "Type": "String",
      "MinLength": 1,
      "MaxLength": 30
    },
    "commandType": {
      "Description": "The type of command.",
      "Type": "String",
      "AllowedValues": [
        "RunBatScript",
        "RunPowerShellScript",
        "RunShellScript"
      ]
    },
    "workingDir": {
      "Description": "The directory where the created command runs on the ECS instances.",
      "Type": "String",
      "Default": ""
    },
    "timeout": {
      "Description": "The value of the invocation timeout period of a command on ECS instances.",
      "Type": "Number",
      "Default": 600
    }
  },
  "Tasks": [
    {
      "Name": "runCommand",
      "Action": "ACS::ExecuteAPI",
      "Description": "Executes a cloud assistant command.",
      "Properties": {
        "Service": "ECS",
        "API": "RunCommand",
        "Parameters": {
          "RegionId": "{{ regionId }}",
          "CommandContent": "{{ commandContent }}",
          "InstanceIds": [
            "{{instanceId}}"
          ],
          "Name": "{{ ACS::ExecutionId }}",
          "Type": "{{ commandType }}",
          "WorkingDir": "{{ workingDir }}",
          "Timeout": "{{ timeout }}"
        }
      },
      "Outputs": {
        "invokeId": {
          "Type": "String",
          "ValueSelector": "InvokeId"
        }
      }
    },
    {
      "Name": "untilInvocationReady",
      "Action": "ACS::WaitFor",
      "Description": "Waits for the command to be completed.",
      "OnError": "ACS::END",
      "Retries": 20,
      "Properties": {
        "Service": "ECS",
        "API": "DescribeInvocations",
        "Parameters": {
          "RegionId": "{{ regionId }}",
          "InvokeId": "{{ runCommand.invokeId }}"
        },
        "DesiredValues": [
          "Finished"
        ],
        "StopRetryValues": [
          "Failed"
        ],
        "PropertySelector": "Invocations.Invocation[].InvokeStatus"
      }
    },
    {
      "Name": "describeInvocationResults",
      "Action": "ACS::ExecuteAPI",
      "Description": "Views the command output of a cloud assistant command in the specified ECS instance.",
      "Properties": {
        "Service": "ECS",
        "API": "DescribeInvocationResults",
        "Parameters": {
          "RegionId": "{{ regionId }}",
          "InvokeId": "{{ runCommand.invokeId }}"
        }
      },
      "Outputs": {
        "invocationResult": {
          "Type": "String",
          "ValueSelector": "Invocation.InvocationResults.InvocationResult[].Output"
        }
      }
    },
    {
      "Name": "checkInvocationResult",
      "Action": "ACS::CheckFor",
      "Description": "Check the command exitcode of a cloud assistant command.",
      "OnError": "ACS::END",
      "Properties": {
        "Service": "ECS",
        "API": "DescribeInvocationResults",
        "Parameters": {
          "RegionId": "{{ regionId }}",
          "InvokeId": "{{ runCommand.InvokeId }}"
        },
        "PropertySelector": "Invocation.InvocationResults.InvocationResult[].ExitCode",
        "DesiredValues": [
          0
        ]
      }
    }
  ],
  "Outputs": {
    "invocationOutput": {
      "Type": "String",
      "Value": {
        "Fn::Base64Decode": "{{ describeInvocationResults.invocationResult }}"
      }
    }
  }
}

任務輸出

Task級別的Outputs由輸出Type和輸出ValueSelector組成。如果聲明多個輸出項，則用逗號分隔開。請參見下列示例的語法結構。

示例

如下模板：獲取指定狀態的所有ECS實例。

  • YAML格式：

FormatVersion: OOS-2019-06-01
Description: Views the ECS instances by specifying instance status.
Parameters:
  regionId:
    Description: The ID of region.
    Type: String
    Default: '{{ ACS::RegionId }}'
  status:
    Description: The ECS instances status for query instances.
    Type: String
Tasks:
- Name: describeInstances
  Action: ACS::ExecuteAPI
  Description: Views the ECS instances by specifying instance status.
  Properties:
    Service: ECS
    API: DescribeInstances
    Parameters:
      RegionId: '{{ regionId }}'
      Status: '{{ status }}'
  Outputs:
    instanceIds:
      Type: List
      ValueSelector: Instances.Instance[].InstanceId
Outputs:
  instanceIds:
    Type: List
    Value: '{{ describeInstances.instanceIds }}'

  • Json格式：

{
    "FormatVersion": "OOS-2019-06-01",
    "Description": "Views the ECS instances by specifying instance status.",
    "Parameters": {
        "regionId": {
            "Description": "The ID of region.",
            "Type": "String",
            "Default": "{{ ACS::RegionId }}"
        },
        "status": {
            "Description": "The ECS instances status for query instances.",
            "Type": "String"
        }
    },
    "Tasks": [
        {
            "Name": "describeInstances",
            "Action": "ACS::ExecuteAPI",
            "Description": "Views the ECS instances by specifying instance status.",
            "Properties": {
                "Service": "ECS",
                "API": "DescribeInstances",
                "Parameters": {
                    "RegionId": "{{ regionId }}",
                    "Status": "{{ status }}"
                }
            },
            "Outputs": {
                "instanceIds": {
                    "Type": "List",
                    "ValueSelector": "Instances.Instance[].InstanceId"
                }
            }
        }
    ],
    "Outputs": {
        "instanceIds": {
            "Type": "List",
            "Value": "{{ describeInstances.instanceIds }}"
        }
    }
}

輸出名稱（必需）

輸出項的標識符，在模板中具有唯一性。如示例中的InstanceIds。

Type（必需）

輸出項的類型，如String、List等。

ValueSelector（必需）

在任務調用API執行完成時，將輸出的屬性值。支持JQ selector，對于該API返回值，如".Instances",".Instances.Instance[].Status"。