add worlddump tool to devstack
when we exit poorly, start building a tool for doing a capture
as to why. This tool is expected to be consumed directly from
grenade as well.
Change-Id: Ia1bc1c2e259587035ca7252baceec25fa464cb82
diff --git a/tools/worlddump.py b/tools/worlddump.py
new file mode 100755
index 0000000..9a62c0d
--- /dev/null
+++ b/tools/worlddump.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python
+#
+# Copyright 2014 Hewlett-Packard Development Company, L.P.
+#
+# 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.
+
+"""Dump the state of the world for post mortem."""
+
+import argparse
+import datetime
+import os
+import os.path
+import sys
+
+
+def get_options():
+ parser = argparse.ArgumentParser(
+ description='Dump world state for debugging')
+ parser.add_argument('-d', '--dir',
+ default='.',
+ help='Output directory for worlddump')
+ return parser.parse_args()
+
+
+def filename(dirname):
+ now = datetime.datetime.utcnow()
+ return os.path.join(dirname, now.strftime("worlddump-%Y-%m-%d-%H%M%S.txt"))
+
+
+def warn(msg):
+ print "WARN: %s" % msg
+
+
+def disk_space():
+ # the df output
+ print """
+File System Summary
+===================
+"""
+ dfraw = os.popen("df -Ph").read()
+ df = [s.split() for s in dfraw.splitlines()]
+ for fs in df:
+ try:
+ if int(fs[4][:-1]) > 95:
+ warn("Device %s (%s) is %s full, might be an issue" % (
+ fs[0], fs[5], fs[4]))
+ except ValueError:
+ # if it doesn't look like an int, that's fine
+ pass
+
+ print dfraw
+
+
+def process_list():
+ print """
+Process Listing
+===============
+"""
+ psraw = os.popen("ps auxw").read()
+ print psraw
+
+
+def main():
+ opts = get_options()
+ fname = filename(opts.dir)
+ print "World dumping... see %s for details" % fname
+ sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
+ with open(fname, 'w') as f:
+ os.dup2(f.fileno(), sys.stdout.fileno())
+ disk_space()
+ process_list()
+
+
+if __name__ == '__main__':
+ try:
+ sys.exit(main())
+ except KeyboardInterrupt:
+ sys.exit(1)