#!/usr/bin/env python # Copyright 2017 Red Hat, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. import asyncio import logging import signal import sys import threading import zuul.cmd import zuul.web from zuul.driver.sql import sqlconnection from zuul.lib.config import get_default class WebServer(zuul.cmd.ZuulDaemonApp): app_name = 'web' app_description = 'A standalone Zuul web server.' def exit_handler(self, signum, frame): self.web.stop() def _run(self): params = dict() params['listen_address'] = get_default(self.config, 'web', 'listen_address', '127.0.0.1') params['listen_port'] = get_default(self.config, 'web', 'port', 9000) params['static_cache_expiry'] = get_default(self.config, 'web', 'static_cache_expiry', 3600) params['gear_server'] = get_default(self.config, 'gearman', 'server') params['gear_port'] = get_default(self.config, 'gearman', 'port', 4730) params['ssl_key'] = get_default(self.config, 'gearman', 'ssl_key') params['ssl_cert'] = get_default(self.config, 'gearman', 'ssl_cert') params['ssl_ca'] = get_default(self.config, 'gearman', 'ssl_ca') sql_conn_name = get_default(self.config, 'web', 'sql_connection_name') sql_conn = None if sql_conn_name: # we want a specific sql connection sql_conn = self.connections.connections.get(sql_conn_name) if not sql_conn: self.log.error("Couldn't find sql connection '%s'" % sql_conn_name) sys.exit(1) else: # look for any sql connection connections = [c for c in self.connections.connections.values() if isinstance(c, sqlconnection.SQLConnection)] if len(connections) > 1: self.log.error("Multiple sql connection found, " "set the sql_connection_name option " "in zuul.conf [web] section") sys.exit(1) if connections: # use this sql connection by default sql_conn = connections[0] params['sql_connection'] = sql_conn try: self.web = zuul.web.ZuulWeb(**params) except Exception as e: self.log.exception("Error creating ZuulWeb:") sys.exit(1) loop = asyncio.get_event_loop() signal.signal(signal.SIGUSR1, self.exit_handler) signal.signal(signal.SIGTERM, self.exit_handler) self.log.info('Zuul Web Server starting') self.thread = threading.Thread(target=self.web.run, args=(loop,), name='web') self.thread.start() try: signal.pause() except KeyboardInterrupt: print("Ctrl + C: asking web server to exit nicely...\n") self.exit_handler(signal.SIGINT, None) self.thread.join() loop.stop() loop.close() self.log.info("Zuul Web Server stopped") def run(self): self.setup_logging('web', 'log_config') self.log = logging.getLogger("zuul.WebServer") self.configure_connections() try: self._run() except Exception: self.log.exception("Exception from WebServer:") def main(): WebServer().main() if __name__ == "__main__": main()