def system_info(client):
"""Run ohai-solo on a remote system and gather the output.
:param client: :class:`ssh.SSH` instance
:returns: dict -- system information from ohai-solo
:raises: SystemInfoCommandMissing, SystemInfoCommandOld, SystemInfoNotJson
SystemInfoMissingJson
SystemInfoCommandMissing if `ohai` is not installed.
SystemInfoCommandOld if `ohai` is not the latest.
SystemInfoNotJson if `ohai` does not return valid JSON.
SystemInfoMissingJson if `ohai` does not return any JSON.
"""
if client.is_windows():
return
else:
output = client.execute("sudo -i ohai-solo")
not_found_msgs = ["command not found", "Could not find ohai"]
if any(m in k for m in not_found_msgs for k in list(output.values())
if isinstance(k, six.string_types)):
LOG.warning("SystemInfoCommandMissing on host: [%s]", client.host)
raise errors.SystemInfoCommandMissing("ohai-solo missing on %s",
client.host)
unicode_output = unicode(output['stdout'], errors='replace')
try:
results = json.loads(unicode_output)
except ValueError as exc:
try:
clean_output = get_json(unicode_output)
results = json.loads(clean_output)
except ValueError as exc:
raise errors.SystemInfoNotJson(exc)
return results
def system_info(client, with_install=False, install_dir=None):
"""Run ohai-solo on a remote system and gather the output.
:param client: :class:`ssh.SSH` instance
:param with_install Will install ohai-solo if set to True
:param install_dir string containing directory to install to
:returns: dict -- system information from ohai-solo
:raises: SystemInfoCommandMissing, SystemInfoCommandOld, SystemInfoNotJson
SystemInfoMissingJson
SystemInfoCommandMissing if `ohai` is not installed.
SystemInfoCommandOld if `ohai` is not the latest.
SystemInfoNotJson if `ohai` does not return valid JSON.
SystemInfoMissingJson if `ohai` does not return any JSON.
"""
if with_install:
perform_install(client, install_dir=install_dir)
if client.is_windows():
raise errors.UnsupportedPlatform(
"ohai-solo is a linux-only sytem info provider. "
"Target platform was %s", client.platform_info['dist'])
ohai_solo_prefix = (install_dir or '/opt')
ohai_solo_command = six.moves.shlex_quote("%s/ohai-solo/bin/ohai-solo"
% ohai_solo_prefix)
command = ("unset GEM_CACHE GEM_HOME GEM_PATH && "
"sudo %s" % ohai_solo_command)
output = client.execute(command, escalate=True, allow_many=False)
not_found_msgs = ["command not found", "Could not find ohai"]
if any(m in k for m in not_found_msgs
for k in list(output.values()) if isinstance(k,
six.string_types)):
LOG.warning("SystemInfoCommandMissing on host: [%s]", client.host)
raise errors.SystemInfoCommandMissing("ohai-solo missing on %s" %
client.host)
# use string formatting to handle unicode
unicode_output = "%s" % output['stdout']
try:
results = json.loads(unicode_output)
except ValueError as exc:
try:
clean_output = get_json(unicode_output)
results = json.loads(clean_output)
except ValueError as exc:
raise errors.SystemInfoNotJson(exc)
return results