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80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
import socket
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import time
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from http.client import HTTPConnection
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from typing import Dict, List, Optional, Tuple, Union
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from xmlrpc import client
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from typing_extensions import override
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class UnixStreamHTTPConnection(HTTPConnection):
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@override
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def connect(self) -> None:
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self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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connected = False
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for i in range(2):
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try:
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self.sock.connect(self.host)
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connected = True
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break
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except FileNotFoundError:
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# Backoff and retry
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time.sleep(2**i)
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if not connected:
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raise Exception(
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"Failed to connect to supervisor -- check that it is running, by running 'service supervisor status'"
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)
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class UnixStreamTransport(client.Transport):
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def __init__(self, socket_path: str) -> None:
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self.socket_path = socket_path
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super().__init__()
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@override
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def make_connection(
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self, host: Union[Tuple[str, Dict[str, str]], str]
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) -> UnixStreamHTTPConnection:
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return UnixStreamHTTPConnection(self.socket_path)
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def rpc() -> client.ServerProxy:
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return client.ServerProxy(
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"http://localhost", transport=UnixStreamTransport("/var/run/supervisor.sock")
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)
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def list_supervisor_processes(
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filter_names: Optional[List[str]] = None, *, only_running: Optional[bool] = None
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) -> List[str]:
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results = []
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processes = rpc().supervisor.getAllProcessInfo()
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assert isinstance(processes, list)
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for process in processes:
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if process["group"] != process["name"]:
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name = f"{process['group']}:{process['name']}"
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else:
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name = process["name"]
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if filter_names:
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match = False
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for filter_name in filter_names:
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# zulip-tornado:* matches zulip-tornado:9800 and zulip-tornado
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if filter_name.endswith(":*") and (
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name.startswith(filter_name[:-1]) or name == filter_name[:-2]
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):
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match = True
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break
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if name == filter_name:
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match = True
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break
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if not match:
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continue
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if only_running is None:
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results.append(name)
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elif only_running == (process["statename"] in ("RUNNING", "STARTING")):
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results.append(name)
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return results
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