def _validate_env(self) -> None:
"""
Validates executables CORE depends on exist on path.
:return: nothing
:raises core.errors.CoreError: when an executable does not exist on path
"""
use_ovs = self.config.get("ovs") == "1"
for requirement in get_requirements(use_ovs):
utils.which(requirement, required=True)
def add_server(self, name: str, host: str) -> None:
"""
Add distributed server configuration.
:param name: distributed server name
:param host: distributed server host address
:return: nothing
:raises CoreError: when there is an error validating server
"""
server = DistributedServer(name, host)
for requirement in get_requirements(self.session.use_ovs()):
try:
server.remote_cmd(f"which {requirement}")
except CoreCommandError:
raise CoreError(f"server({server.name}) failed validation for "
f"command({requirement})")
self.servers[name] = server
cmd = f"mkdir -p {self.session.session_dir}"
server.remote_cmd(cmd)