Automating administrative architecture setup using wsadmin scripting library

The scripting library provides Jython script procedures to assist in automating your environment. Use the server, node, and cluster management scripts to configure servers, nodes, node groups, and clusters in your application server environment.

Before you begin

Before you can complete this task, you must install an application server in your environment.

About this task

Scripting 程式庫提供一組自動執行最常見應用程式伺服器管理功能的程序。 Jython Script 程式庫有三種使用方式。
  • 利用 wsadmin 工具,以互動模式執行 Jython Script 程式庫中的 Script。 您可以啟動 wsadmin 工具,然後利用下列語法來執行併入 Script 程式庫的個別 Script:
    wsadmin>AdminServerManagement.createApplicationServer("myNode", "myServer", "default")
  • 利用文字編輯器,依照下列範例所示,將 Jython Script 程式庫中的若干 Script 結合起來:
    #
    # My Custom Jython Script - file.py
    #
    AdminServerManagement.createApplicationServer("myNode", "Server1", "default")
    AdminServerManagement.createApplicationServer("myNode", "Server2", "default")
    
    # 使用其中一個作為叢集的第一個成員
    AdminClusterManagement.createClusterWithFirstMember("myCluster", "APPLICATION_SERVER",
        "myNode", "Server1")
    
    # 新增第二個成員到叢集中
    AdminClusterManagement.createClusterMember("myCluster", "myNode", "Server3")
    
    # 安裝應用程式
    AdminApplication.installAppWithClusterOption("DefaultApplication",
        "..\installableApps\DefaultApplication.ear", "myCluster") 
    
    # 啟動節點上的所有伺服器和應用程式
    AdminServerManagement.startAllServers("myNode")
    請將自訂 Script 儲存起來,然後依照下列語法所示,從指令行執行它:
    bin>wsadmin -language jython -f path/to/your/jython/file.py
  • 利用 Jython Scripting 程式庫程式碼作為撰寫自訂 Script 的語法範例。 Script 程式庫中的各個 Script 範例示範撰寫 wsadmin Script 的最佳實務。 Script 程式庫程式碼位於app_server_root/scriptLibraries 目錄中。 在這個目錄內,Script 是先依照功能組織成子目錄。 例如,app_server_root/scriptLibraries/application/V70 子目錄所包含的程序會執行適用於產品 7.0 版及更新版本的應用程式管理作業。Script 程式庫路徑中的 V70 子目錄不表示 在該子目錄中的 Script 為 7.0 版 Script。
Use the scripts in the following directories to configure your administrative architecture:
  • The server and cluster management procedures are located in the app_server_root/scriptLibraries/servers/V70 subdirectory.
  • The node and node group management procedures are located in the app_server_root/scriptLibraries/system/V70 subdirectory.
Each script from the directory automatically loads when you launch the wsadmin tool. To automatically load your own Jython scripts (*.py) when the wsadmin tool starts, create a new subdirectory, and save existing automation scripts in the app_server_root/scriptLibraries directory.
最佳作法 最佳作法: To create custom scripts using the scripting library procedures, save the modified scripts to a new subdirectory to avoid overwriting the library. Do not edit the script procedures in the scripting library.bprac

Use the following steps to create a node group and add three nodes to the group:

Procedure

  1. Optional: Launch the wsadmin tool.
    Use this step to launch the wsadmin tool and connect to a server, job manager, or administrative agent profile, or run the tool in local mode. If you launch the wsadmin tool, use the interactive mode examples to run scripts.
    • Enter the following command from the bin directory to launch the wsadmin tool and connect to a server:
      wsadmin -lang jython
    • Enter the following command from the bin directory to launch the wsadmin tool in local mode using the Jython scripting language:
      wsadmin -conntype none -lang jython
    When the wsadmin tool launches, the system loads all scripts from the scripting library.
  2. Display the nodes in your environment.
    Run the listNodes script procedure from the AdminNodeManagement script library, as the following example demonstrates:
    bin>wsadmin -lang jython -c "AdminNodeManagement.listNodes()"
    You can also use interactive mode to run the script procedure, as the following example demonstrates:
    wsadmin>AdminNodeManagement.listNodes()
    For this example, the command returns the following output:
    Node1
    Node2
    Node3
  3. Create a node group.
    Run the createNodeGroup script procedure from the AdminNodeGroupManagement script library, specifying the name to assign to the new node group, as the following example demonstrates:
    bin>wsadmin -lang jython -c "AdminNodeGroupManagement.createNodeGroup("NodeGroup1")"
    You can also use interactive mode to run the script procedure, as the following example demonstrates:
    wsadmin>AdminNodeGroupManagement.createNodeGroup("myNodeGroup")
  4. Add nodes to the node group.
    Run the addNodeGroupMember script procedure from the AdminNodeGroupManagement script library to add the Node1, Node2, and Node3 nodes to the NodeGroup1 node group, specifying the node name and node group name, as the following examples demonstrate:
    wsadmin -lang jython -c "AdminNodeGroupManagement.addNodeGroupMember("Node1", "NodeGroup1")"
    wsadmin -lang jython -c "AdminNodeGroupManagement.addNodeGroupMember("Node2", "NodeGroup1")"
    wsadmin -lang jython -c "AdminNodeGroupManagement.addNodeGroupMember("Node3", "NodeGroup1")"
    You can also use interactive mode to run the script procedure, as the following example demonstrates:
    wsadmin>AdminNodeGroupManagement.addNodeGroupMember("Node1", "NodeGroup1")
    wsadmin>AdminNodeGroupManagement.addNodeGroupMember("Node2", "NodeGroup1")
    wsadmin>AdminNodeGroupManagement.addNodeGroupMember("Node3", "NodeGroup1")

Results

The wsadmin script libraries return the same output as the associated wsadmin commands. For example, the AdminServerManagement.listServers() script returns a list of available servers. The AdminClusterManagement.checkIfClusterExists() script returns a value of true if the cluster exists, or false if the cluster does not exist. If the command does not return the expected output, the script libraries return a 1 value when the script successfully runs. If the script fails, the script libraries return a -1 value and an error message with the exception.

By default, the system disables failonerror option. To enable this option, specify true as the last argument for the script procedure, as the following example displays:
wsadmin>AdminApplication.startApplicationOnCluster("myApplication","myCluster","true")

What to do next

Create custom scripts to automate your environment by combining script procedures from the scripting library. Save custom scripts to a new subdirectory of the app_server_root/scriptLibraries directory.


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時間戳記圖示 前次更新: July 9, 2016 11:18
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