Provide a script that starts a simple WSGI server
This provides an alternative to using screens in devstack for reading logs. It works out-of-box, so there is no need to install and configure something like Apache. Change-Id: I8811d16cbcb45baaaa4a44b923b813a40714ffa2
This commit is contained in:
Darragh O'Reilly
parent
1a3deca762
commit
7ffac14837
|
|
@ -27,6 +27,11 @@ Features
|
|||
* html highlighting based on severity
|
||||
* filtering based on severity using the level=XXXX parameter (works in
|
||||
either text/html or text/plain responses
|
||||
* Provides a script named htmlify_server.py that serves htmlified logs
|
||||
over HTTP. To view devstack logs: set
|
||||
SCREEN_LOGDIR=$DEST/logs/screen and LOG_COLOR=false in localrc
|
||||
before running stack.sh, run htmlify_server.py, and point your
|
||||
browser at http://devstack-ip:8000/
|
||||
|
||||
Todo
|
||||
------------
|
||||
|
|
|
|||
|
|
@ -0,0 +1,19 @@
|
|||
#!/usr/bin/python
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
import os_loganalyze.server
|
||||
|
||||
|
||||
def main():
|
||||
os_loganalyze.server.main()
|
||||
|
|
@ -0,0 +1,103 @@
|
|||
#!/usr/bin/python
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
|
||||
""" Run a simple WSGI server to serve htmlified logs from local devstack
|
||||
machines. Add these lines to localrc before running stack.sh:
|
||||
|
||||
SCREEN_LOGDIR=$DEST/logs/screen
|
||||
LOG_COLOR=false
|
||||
"""
|
||||
|
||||
import argparse
|
||||
import os
|
||||
from os_loganalyze.wsgi import application
|
||||
import re
|
||||
import sys
|
||||
import wsgiref.simple_server
|
||||
|
||||
|
||||
DEF_PORT = 8000
|
||||
LOG_PATH = '/opt/stack/logs/screen/'
|
||||
|
||||
|
||||
def parse_args():
|
||||
parser = argparse.ArgumentParser(
|
||||
description=__doc__,
|
||||
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
|
||||
|
||||
parser.add_argument('--port', '-p', type=int, default=DEF_PORT,
|
||||
help='TCP port to listen on')
|
||||
|
||||
parser.add_argument('--logdir', '-l', default=LOG_PATH,
|
||||
help='Path to the log files to be served')
|
||||
|
||||
args = parser.parse_args()
|
||||
return (args.port, args.logdir)
|
||||
|
||||
|
||||
def top_wsgi_app(environ, start_response):
|
||||
req_path = environ.get('PATH_INFO')
|
||||
if bool(re.search('^/$|^/htmlify/?$', req_path)):
|
||||
return gen_links_wsgi_app(environ, start_response)
|
||||
else:
|
||||
return application(environ, start_response, root_path=LOG_PATH)
|
||||
|
||||
|
||||
def gen_links_wsgi_app(environ, start_response):
|
||||
start_response('200 OK', [('Content-type', 'text/html')])
|
||||
if environ.get('QUERY_STRING') == 'all':
|
||||
return link_generator(all_files=True)
|
||||
else:
|
||||
return link_generator(all_files=False)
|
||||
|
||||
|
||||
def link_generator(all_files):
|
||||
yield '<head><body>\n'
|
||||
|
||||
filenames = os.listdir(LOG_PATH)
|
||||
if all_files:
|
||||
yield ("Showing all files in %s. "
|
||||
"<a href='/'>Show current logs only</a>\n" % LOG_PATH)
|
||||
else:
|
||||
yield ("Showing current log files in %s. "
|
||||
"<a href='/?all'>Show all files</a>\n" % LOG_PATH)
|
||||
filenames = [f for f in filenames if f.endswith('.log')]
|
||||
# also exclude files with datestamps in their name
|
||||
filenames = [f for f in filenames
|
||||
if not re.search('\d{4}-\d{2}-\d{2}', f)]
|
||||
|
||||
for filename in sorted(filenames):
|
||||
yield "<p><a href='/htmlify/%s'> %s </a>\n" % (filename, filename)
|
||||
|
||||
yield '</body></html>\n'
|
||||
|
||||
|
||||
def main():
|
||||
global LOG_PATH
|
||||
port, LOG_PATH = parse_args()
|
||||
|
||||
if not os.path.isdir(LOG_PATH):
|
||||
print "%s is not a directory. Quiting..." % LOG_PATH
|
||||
sys.exit(1)
|
||||
|
||||
print "Listening on port %d with %s as root path" % (port, LOG_PATH)
|
||||
print "URLs are like: http://host-ip:%d/htmlify/screen-n-api.log" % port
|
||||
print "Or goto http://host-ip:%d for a page of links" % port
|
||||
|
||||
wsgiref.simple_server.make_server('', port, top_wsgi_app).serve_forever()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Loading…
Reference in New Issue