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from ceph_node_proxy.redfishdellsystem import RedfishDellSystem
from ceph_node_proxy.api import NodeProxyApi
from ceph_node_proxy.reporter import Reporter
from ceph_node_proxy.util import Config, get_logger, http_req, write_tmp_file, CONFIG
from urllib.error import HTTPError
from typing import Dict, Any, Optional
import argparse
import os
import ssl
import json
import time
import signal
class NodeProxyManager:
def __init__(self, **kw: Any) -> None:
self.exc: Optional[Exception] = None
self.log = get_logger(__name__)
self.mgr_host: str = kw['mgr_host']
self.cephx_name: str = kw['cephx_name']
self.cephx_secret: str = kw['cephx_secret']
self.ca_path: str = kw['ca_path']
self.api_ssl_crt: str = kw['api_ssl_crt']
self.api_ssl_key: str = kw['api_ssl_key']
self.mgr_agent_port: str = str(kw['mgr_agent_port'])
self.stop: bool = False
self.ssl_ctx = ssl.create_default_context()
self.ssl_ctx.check_hostname = True
self.ssl_ctx.verify_mode = ssl.CERT_REQUIRED
self.ssl_ctx.load_verify_locations(self.ca_path)
self.reporter_scheme: str = kw.get('reporter_scheme', 'https')
self.reporter_endpoint: str = kw.get('reporter_endpoint', '/node-proxy/data')
self.cephx = {'cephx': {'name': self.cephx_name,
'secret': self.cephx_secret}}
self.config = Config('/etc/ceph/node-proxy.yml', config=CONFIG)
self.username: str = ''
self.password: str = ''
def run(self) -> None:
self.init()
self.loop()
def init(self) -> None:
self.init_system()
self.init_reporter()
self.init_api()
def fetch_oob_details(self) -> Dict[str, str]:
try:
headers, result, status = http_req(hostname=self.mgr_host,
port=self.mgr_agent_port,
data=json.dumps(self.cephx),
endpoint='/node-proxy/oob',
ssl_ctx=self.ssl_ctx)
except HTTPError as e:
msg = f'No out of band tool details could be loaded: {e.code}, {e.reason}'
self.log.debug(msg)
raise
result_json = json.loads(result)
oob_details: Dict[str, str] = {
'host': result_json['result']['addr'],
'username': result_json['result']['username'],
'password': result_json['result']['password'],
'port': result_json['result'].get('port', '443')
}
return oob_details
def init_system(self) -> None:
try:
oob_details = self.fetch_oob_details()
self.username = oob_details['username']
self.password = oob_details['password']
except HTTPError:
self.log.warning('No oob details could be loaded, exiting...')
raise SystemExit(1)
try:
self.system = RedfishDellSystem(host=oob_details['host'],
port=oob_details['port'],
username=oob_details['username'],
password=oob_details['password'],
config=self.config)
self.system.start()
except RuntimeError:
self.log.error("Can't initialize the redfish system.")
raise
def init_reporter(self) -> None:
try:
self.reporter_agent = Reporter(self.system,
self.cephx,
reporter_scheme=self.reporter_scheme,
reporter_hostname=self.mgr_host,
reporter_port=self.mgr_agent_port,
reporter_endpoint=self.reporter_endpoint)
self.reporter_agent.start()
except RuntimeError:
self.log.error("Can't initialize the reporter.")
raise
def init_api(self) -> None:
try:
self.log.info('Starting node-proxy API...')
self.api = NodeProxyApi(self)
self.api.start()
except Exception as e:
self.log.error(f"Can't start node-proxy API: {e}")
raise
def loop(self) -> None:
while not self.stop:
for thread in [self.system, self.reporter_agent]:
try:
status = thread.check_status()
label = 'Ok' if status else 'Critical'
self.log.debug(f'{thread} status: {label}')
except Exception as e:
self.log.error(f'{thread} not running: {e.__class__.__name__}: {e}')
thread.shutdown()
self.init_system()
self.init_reporter()
self.log.debug('All threads are alive, next check in 20sec.')
time.sleep(20)
def shutdown(self) -> None:
self.stop = True
# if `self.system.shutdown()` is called before self.start(), it will fail.
if hasattr(self, 'api'):
self.api.shutdown()
if hasattr(self, 'reporter_agent'):
self.reporter_agent.shutdown()
if hasattr(self, 'system'):
self.system.shutdown()
def handler(signum: Any, frame: Any, t_mgr: 'NodeProxyManager') -> None:
t_mgr.system.pending_shutdown = True
t_mgr.log.info('SIGTERM caught, shutting down threads...')
t_mgr.shutdown()
t_mgr.log.info('Logging out from RedFish API')
t_mgr.system.client.logout()
raise SystemExit(0)
def main() -> None:
parser = argparse.ArgumentParser(
description='Ceph Node-Proxy for HW Monitoring',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument(
'--config',
help='path of config file in json format',
required=True
)
parser.add_argument(
'--debug',
help='increase logging verbosity (debug level)',
action='store_true',
)
args = parser.parse_args()
if args.debug:
CONFIG['logging']['level'] = 10
if not os.path.exists(args.config):
raise Exception(f'No config file found at provided config path: {args.config}')
with open(args.config, 'r') as f:
try:
config_json = f.read()
config = json.loads(config_json)
except Exception as e:
raise Exception(f'Failed to load json config: {str(e)}')
target_ip = config['target_ip']
target_port = config['target_port']
keyring = config['keyring']
root_cert = config['root_cert.pem']
listener_cert = config['listener.crt']
listener_key = config['listener.key']
name = config['name']
ca_file = write_tmp_file(root_cert,
prefix_name='cephadm-endpoint-root-cert')
node_proxy_mgr = NodeProxyManager(mgr_host=target_ip,
cephx_name=name,
cephx_secret=keyring,
mgr_agent_port=target_port,
ca_path=ca_file.name,
api_ssl_crt=listener_cert,
api_ssl_key=listener_key)
signal.signal(signal.SIGTERM,
lambda signum, frame: handler(signum, frame, node_proxy_mgr))
node_proxy_mgr.run()
if __name__ == '__main__':
main()
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