tools: frr-reload: log exclusively through logger

In several instances a call to log.error() is preceded by a print()
for the same message. To prevent duplicate messages these print()
calls are removed.

To maintain (very) similar behaviour we add a StreamHandler to the
logger, when doing logging to a file (ie. --reload without --stdout),
which additionally sends error and above logs to STDOUT without any
metadata (exactly as they did before, with print()).

There is one subtle change - the log from Vtysh.is_config_available()
is now preceded with the "vtysh 'configure' returned" text, whereas
previously only the output from vtysh was sent to STDOUT.

Furthermore any error logs which weren't previously explicitly logged
to STDOUT will now be.

Signed-off-by: Duncan Eastoe <duncan.eastoe@att.com>
This commit is contained in:
Duncan Eastoe 2020-07-15 12:35:42 +01:00
parent 9c782ad2a4
commit 6eee4767d0

View File

@ -113,7 +113,6 @@ class Vtysh(object):
output = self('configure')
if 'VTY configuration is locked by other VTY' in output:
print(output)
log.error("vtysh 'configure' returned\n%s\n" % (output))
return False
@ -1212,45 +1211,44 @@ if __name__ == '__main__':
else:
log.setLevel(args.log_level.upper())
if args.reload and not args.stdout:
# Additionally send errors and above to STDOUT, with no metadata,
# when we are logging to a file. This specifically does not follow
# args.log_level, and is analagous to behaviour in earlier versions
# which additionally logged most errors using print().
stdout_hdlr = logging.StreamHandler(sys.stdout)
stdout_hdlr.setLevel(logging.ERROR)
stdout_hdlr.setFormatter(logging.Formatter())
log.addHandler(stdout_hdlr)
# Verify the new config file is valid
if not os.path.isfile(args.filename):
msg = "Filename %s does not exist" % args.filename
print(msg)
log.error(msg)
log.error("Filename %s does not exist" % args.filename)
sys.exit(1)
if not os.path.getsize(args.filename):
msg = "Filename %s is an empty file" % args.filename
print(msg)
log.error(msg)
log.error("Filename %s is an empty file" % args.filename)
sys.exit(1)
# Verify that confdir is correct
if not os.path.isdir(args.confdir):
msg = "Confdir %s is not a valid path" % args.confdir
print(msg)
log.error(msg)
log.error("Confdir %s is not a valid path" % args.confdir)
sys.exit(1)
# Verify that bindir is correct
if not os.path.isdir(args.bindir) or not os.path.isfile(args.bindir + '/vtysh'):
msg = "Bindir %s is not a valid path to vtysh" % args.bindir
print(msg)
log.error(msg)
log.error("Bindir %s is not a valid path to vtysh" % args.bindir)
sys.exit(1)
# verify that the vty_socket, if specified, is valid
if args.vty_socket and not os.path.isdir(args.vty_socket):
msg = 'vty_socket %s is not a valid path' % args.vty_socket
print(msg)
log.error(msg)
log.error('vty_socket %s is not a valid path' % args.vty_socket)
sys.exit(1)
# verify that the daemon, if specified, is valid
if args.daemon and args.daemon not in ['zebra', 'bgpd', 'fabricd', 'isisd', 'ospf6d', 'ospfd', 'pbrd', 'pimd', 'ripd', 'ripngd', 'sharpd', 'staticd', 'vrrpd', 'ldpd']:
msg = "Daemon %s is not a valid option for 'show running-config'" % args.daemon
print(msg)
log.error(msg)
log.error("Daemon %s is not a valid option for 'show running-config'" % args.daemon)
sys.exit(1)
vtysh = Vtysh(args.bindir, args.confdir, args.vty_socket)
@ -1269,9 +1267,7 @@ if __name__ == '__main__':
break
if not service_integrated_vtysh_config and not args.daemon:
msg = "'service integrated-vtysh-config' is not configured, this is required for 'service frr reload'"
print(msg)
log.error(msg)
log.error("'service integrated-vtysh-config' is not configured, this is required for 'service frr reload'")
sys.exit(1)
log.info('Called via "%s"', str(args))