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#!/usr/bin/env python3
#
# Copyright (c) 2021, LabN Consulting, L.L.C.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; see the file COPYING; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
########################################################
### Python Script to generate the FRR support bundle ###
########################################################
import argparse
import logging
import os
import subprocess
import tempfile
def open_with_backup(path):
if os.path.exists(path):
print("Making backup of " + path)
subprocess.check_call("mv {0} {0}.prev".format(path), shell=True)
return open(path, "w")
def main():
parser = argparse.ArgumentParser()
parser.add_argument(
"-c",
"--config",
default="/etc/frr/support_bundle_commands.conf",
help="input config",
)
parser.add_argument(
"-l", "--log-dir", default="/var/log/frr", help="directory for logfiles"
)
args = parser.parse_args()
collecting = False # file format has sentinels (seem superfluous)
proc_cmds = {}
proc = None
temp = None
# Collect all the commands for each daemon
try:
for line in open(args.config):
line = line.rstrip()
if len(line) == 0 or line[0] == "#":
continue
cmd_line = line.split(":")
if cmd_line[0] == "PROC_NAME":
proc = cmd_line[1]
temp = tempfile.NamedTemporaryFile("w+")
collecting = False
elif cmd_line[0] == "CMD_LIST_START":
collecting = True
elif cmd_line[0] == "CMD_LIST_END":
collecting = False
temp.flush()
proc_cmds[proc] = open(temp.name)
temp.close()
elif collecting:
temp.write(line + "\n")
else:
print("Ignoring unexpected input " + line.rstrip())
except IOError as error:
logging.fatal("Cannot read config file: %s: %s", args.config, str(error))
return
# Spawn a vtysh to fetch each set of commands
procs = []
for proc in proc_cmds:
ofn = os.path.join(args.log_dir, proc + "_support_bundle.log")
p = subprocess.Popen(
["/usr/bin/env", "vtysh", "-t"],
stdin=proc_cmds[proc],
stdout=open_with_backup(ofn),
stderr=subprocess.STDOUT,
)
procs.append(p)
for p in procs:
p.wait()
if __name__ == "__main__":
main()
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