ptgbot-web: add simple service to serve static pages

This serves the static pages from the container directly

Change-Id: I86f3f5002f88005760e00c5714b0891c1892a6f2

Dockerfile

@@ -9,4 +9,5 @@ FROM opendevorg/python-base:3.9 as ptgbot
 COPY --from=builder /output/ /output
 RUN /output/install-from-bindep
 
-CMD ["/usr/local/bin/ptgbot", "-d", "/etc/ptgbot/ptgbot.config"]
+COPY init.sh init.sh
+CMD ./init.sh

init.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# Serves website as a daemon
+/usr/local/bin/ptgbot-web --debug /etc/ptgbot/ptgbot.config
+
+# Run in foreground as the main process
+/usr/local/bin/ptgbot -d /etc/ptgbot/ptgbot.config

ptgbot/web.py

@@ -0,0 +1,73 @@
+import argparse
+import daemon
+import daemon.pidfile
+import http.server
+import json
+import logging
+import os
+import pkg_resources
+import socketserver
+
+CONFIG = {}
+
+
+class RequestHandler(http.server.SimpleHTTPRequestHandler):
+    def do_GET(self):
+        if self.path.endswith('ptg.json'):
+            with open(CONFIG['db_filename'], 'rb') as fp:
+                self.send_response(200)
+                self.send_header('Content-type', 'application/json')
+                self.end_headers()
+                self.wfile.write(fp.read())
+        else:
+            http.server.SimpleHTTPRequestHandler.do_GET(self)
+
+    def log_message(self, format, *args):
+        logging.debug("%s - - [%s] %s" % (self.address_string(),
+                                          self.log_date_time_string(),
+                                          format % args))
+
+
+def start():
+    os.chdir(CONFIG['source_dir'])
+    with socketserver.TCPServer(("", CONFIG['port']), RequestHandler) as httpd:
+        httpd.serve_forever()
+
+
+def main():
+    global CONFIG
+    parser = argparse.ArgumentParser(description='PTG web')
+    parser.add_argument('configfile', help='config file')
+    parser.add_argument('-d', dest='nodaemon', action='store_true',
+                        help='do not run as daemon')
+    parser.add_argument('-p', '--port', dest='port', help='Port to listen on',
+                        default=8000)
+    parser.add_argument('--debug', dest='debug', action='store_true')
+    args = parser.parse_args()
+
+    CONFIG['debug'] = True if args.debug else False
+    CONFIG['port'] = int(args.port)
+
+    with open(args.configfile, 'r') as fp:
+        file_config = json.load(fp)
+        CONFIG['db_filename'] = file_config['db_filename']
+
+    CONFIG['source_dir'] = pkg_resources.resource_filename(__name__, "html")
+
+    logging.basicConfig(level=logging.DEBUG if args.debug else logging.INFO)
+    logging.info('Starting daemon on port: %s' % args.port)
+    logging.info('Serving files from: %s' % CONFIG['source_dir'])
+    logging.info('JSON from: %s' % CONFIG['db_filename'])
+    logging.debug('Debugging on')
+
+    if not args.nodaemon:
+        os.makedirs('/var/run/ptgbot', exist_ok=True)
+        pid = daemon.pidfile.TimeoutPIDLockFile(
+            '/var/run/ptgbot/ptgbot-web.pid', 10)
+        with daemon.DaemonContext(pidfile=pid):
+            start()
+    start()
+
+
+if __name__ == "__main__":
+    main()

requirements.txt

@@ -1,5 +1,5 @@
 # Pin irc module to 15.1.1 until ib3 releases https://github.com/bd808/python-ib3/commit/92da70155e5378478802cb38baaa2a00187201d6
 irc==15.1.1
-python-daemon
+python-daemon >= 1.6
 ib3
 requests

setup.cfg

@@ -19,6 +19,11 @@ classifier =
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
 
+[files]
+packages =
+    ptgbot
+
 [entry_points]
 console_scripts =
     ptgbot = ptgbot.bot:main
+    ptgbot-web = ptgbot.web:main

test-requirements.txt

@@ -1,2 +1,2 @@
-hacking>=3.0,<3.1.0 # Apache-2.0
+hacking>=3.0,<4.1.0 # Apache-2.0
 stestr>=2.0.0 # Apache-2.0