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Creating an agent: highlights

The steps to create and implement an agent are described by example in later chapters.

Developing the entry points

Decide whether to implement the agent entry points using C++ code, scripts, or a combination of the two. There are advantages and disadvantages implementing entry points in either method.

See Using C++ or script entry points.

Create the entry points.

See Entry points in C++.

See Entry points in scripts.

Building the agent

Build the agent, create required files, and place the agent in specific directories.

The types.cf file contains definitions of resource types that come bundled with Veritas Cluster Server. A custom resource type definition should be placed in a file called ResourcetypeTypes.cf, for example, MyResourceTypes..cf or OracleTypes.cf. This file is referenced as an "include" statement in the configuration file, main.cf.

For more information about the resource type definition, see

• Building a custom agent.

For building an agent, sample files are provided.

• On Windows, create the agent using sample files in %VCS_HOME%\src\agent\Sample. Build the agent binary and place it %VCS_HOME%\bin\resource_type.
• For building an all-scripts entry point agent, use the ScriptAgent binary or the Script50Agent binary.

  Create a symbolic link called resource_typeAgent to the ScriptAgent or the Script50Agent in the appropriate directory:

  %VCS_HOME%\bin\resource_type

  If you use script entry point, install the files files in the directory %VCS_HOME\bin\resource_type

Testing the agent

Test the agent by defining the resource type in a configuration.

See Testing agents.