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

A biblioteca de scripts fornece um conjunto de procedimentos para automatizar as funções mais comuns de administração de servidor de aplicativos. Há três maneiras de utilizar a biblioteca de script Jython.
  • Execute scripts da biblioteca de scripts Jython no modo interativo com a ferramenta wsadmin. Você pode ativar a ferramenta wsadmin e executar scripts individuais incluídos na biblioteca de scripts utilizando a seguinte sintaxe:
    wsadmin>AdminServerManagement.createApplicationServer("myNode", "myServer", "default")
  • Utilize um editor de texto para combinar diversos scripts da biblioteca de scripts Jython, conforme exibido na seguinte amostra:
    #
    # My Custom Jython Script - file.py
    #
    AdminServerManagement.createApplicationServer("myNode", "Server1", "default")
    AdminServerManagement.createApplicationServer("myNode", "Server2", "default")
    
    # Use one of them as the first member of a cluster
    AdminClusterManagement.createClusterWithFirstMember("myCluster", "APPLICATION_SERVER",
        "myNode", "Server1")
    
    # Add a second member to the cluster
    AdminClusterManagement.createClusterMember("myCluster", "myNode", "Server3")
    
    # Install an application
    AdminApplication.installAppWithClusterOption("DefaultApplication",
        "..\installableApps\DefaultApplication.ear", "myCluster") 
    
    # Start all servers and applications on the node
    AdminServerManagement.startAllServers("myNode")
    Salve o script customizado e execute-o na linha de comandos, conforme demonstra a seguinte sintaxe:
    bin>wsadmin -language jython -f path/to/your/jython/file.py
  • Utilize o código da biblioteca de scripts Jython como sintaxe de amostra para gravar scripts customizados. Cada exemplo de script na biblioteca de scripts demonstra boas práticas para escrever scripts wsadmin. O código da biblioteca de script está localizado no diretório app_server_root/scriptLibraries. Nesse diretório, os scripts são organizados em subdiretórios, de acordo com a funcionalidade. Por exemplo, o subdiretório app_server_root/scriptLibraries/application/V70 contém procedimentos que executam tarefas de gerenciamento de aplicativo que são aplicáveis à Versão 7.0 e posterior do produto. O subdiretório V70 nos caminhos da biblioteca de scripts não significa que os scripts contidos nesse diretório são scripts da Versão 7.0.
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.
Boas Práticas Boas Práticas: 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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Ícone de registro de data e hora Última atualização: July 9, 2016 7:58
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