The scripting library provides Jython script procedures
to assist in automating your environment. Use the server management
scripts to configure servers, the server runtime environment, Web
containers, performance monitoring, and logs. You can also use the
scripts to administer your servers.
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.
The
AdminServerManagement procedures in scripting library are located
in the
app_server_root/scriptLibraries/servers/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 under the
app_server_root/scriptLibraries
directory.
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
You can use the
AdminServerManagement.py scripts to perform multiple combinations
of administration functions. Use the following steps to create an
application server, connect the application server to the AdminService
interface, configure Java™ virtual
machine (JVM) settings, add the application server to a cluster, and
propagate the changes to the node.
Procedure
- 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.
When the wsadmin tool launches, the system
loads all scripts from the scripting library.
- Create an application server.
Run the createApplicationServer
script procedure from the AdminServerManagement script library, as
the following example demonstrates:
bin>wsadmin -lang jython -c "AdminServerManagement.createApplicationServer("myNode", "myServer", "default")"
You
can also use interactive mode to run the script procedure, as the
following example demonstrates:
wsadmin>AdminServerManagement.createApplicationServer("myNode", "myServer", "default")
- Connect the application server of interest to the AdminService
interface.
The AdminService interface is the server
interface to the application server administration functions. To connect
the application server to the AdminService interface, run the configureAdminService
script procedure from the AdminServerManagement script library, specifying
the node name, server name, and connector type arguments, as the following
example demonstrates:
bin>wsadmin -lang jython -c "AdminServerManagement.configureAdminService("myNode", "myServer",
"IPC", "JSR160RMI")
You can also use
interactive mode to run the script procedure, as the following example
demonstrates:
wsadmin>AdminServerManagement.configureAdminService("myNode", "myServer", "IPC", "JSR160RMI")
- Configure the Java virtual
machine (JVM).
As part of configuring an application
server, you might define settings that enhance the way your operating
system uses of the JVM. The JVM is an interpretive computing engine
responsible for running the byte codes in a compiled Java program. The JVM translates the Java byte codes into the native instructions
of the host machine. The application server, being a Java process, requires a JVM in order to run,
and to support the Java applications running on it.
Run
the configureJavaVirtualMachine script procedure from the AdminServerManagement
script library, specifying the node name, server name, whether to
run the JVM in debug mode, and any debug arguments to pass to the
JVM process. You can optionally specify additional configuration attributes
with an attribute list. Use the following example to configure the
JVM:
bin>wsadmin -lang jython -c "AdminServerManagement.configureJavaVirtualMachine("myNode",
"myServer", "true", "mydebug", [["internalClassAccessMode", "RESTRICT"],
["disableJIT", "false"], ["verboseModeJNI", "false"]])"
You
can also use interactive mode to run the script procedure, as the
following example demonstrates:
wsadmin>AdminServerManagement.configureJavaVirtualMachine("myNode", "myServer", "true",
"mydebug", [["internalClassAccessMode", "RESTRICT"],
["disableJIT", "false"], ["verboseModeJNI", "false"]])
- Create a cluster, and add the application server as a cluster
member.
Run the createClusterWithFirstMember script
procedure from the AdminClusterManagement script library, as the following
example demonstrates:
bin>wsadmin -lang jython -c "AdminClusterManagement.createClusterWithFirstMember("myCluster",
"APPLICATION_SERVER", "myNode", "myServer")"
wsadmin>AdminClusterManagement.createClusterWithFirstMember("myCluster", "APPLICATION_SERVER",
"myNode", "myServer")
- Synchronize the node.
To
propagate the configuration changes to the node, run the syncNode
script procedure from the AdminNodeManagement script library, and
specify the node of interest, as the following example demonstrates:
bin>wsadmin -lang jython -c "AdminNodeManagement.syncNode("myNode")"
You
can also use interactive mode to run the script procedure, as the
following example displays:
wsadmin>AdminNodeManagement.syncNode("myNode")
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.