def _get_ocf_resource_agent_metadata(runner, provider, agent):
"""
Returns metadata dom for specified ocf resource agent
Raises AgentNotFound if specified agent is relative path or file is not
runnable.
Raises UnableToGetAgentMetadata if there was problem getting or
parsing metadata.
runner -- CommandRunner
provider -- resource agent provider
agent -- resource agent name
"""
agent_name = "ocf:" + provider + ":" + agent
script_path = os.path.join(settings.ocf_resources, provider, agent)
if not __is_path_abs(script_path) or not is_path_runnable(script_path):
raise AgentNotFound(agent_name)
output, retval = runner.run(
[script_path, "meta-data"],
env_extend={"OCF_ROOT": settings.ocf_root},
ignore_stderr=True
)
if output.strip() == "":
raise UnableToGetAgentMetadata(agent_name, output)
try:
return etree.fromstring(output)
except etree.XMLSyntaxError as e:
raise UnableToGetAgentMetadata(agent_name, str(e))
def get_fence_agent_metadata(runner, fence_agent):
"""
Returns dom of metadata for specified fence agent
Raises AgentNotFound if fence_agent doesn't starts with fence_ or it is
relative path or file is not runnable.
Raises UnableToGetAgentMetadata if there was problem getting or
parsing metadata.
runner -- CommandRunner
fence_agent -- fence agent name, should start with 'fence_'
"""
script_path = os.path.join(settings.fence_agent_binaries, fence_agent)
if not (
fence_agent.startswith("fence_") and
__is_path_abs(script_path) and
is_path_runnable(script_path)
):
raise AgentNotFound(fence_agent)
output, retval = runner.run(
[script_path, "-o", "metadata"], ignore_stderr=True
)
if output.strip() == "":
raise UnableToGetAgentMetadata(fence_agent, output)
try:
return etree.fromstring(output)
except etree.XMLSyntaxError as e:
raise UnableToGetAgentMetadata(fence_agent, str(e))
