rkrahl / auto-patch Goto Github PK

There are several things that need configuration in the script:

• mail configuration: mail host, from, to,
• control of retrying if the ZYPP library is locked, added in #4: lock_max_tries and lock_wait,
• logging configuration, added in #5.

All of this is currently hard coded in the script, but should be made configurable in a configuration file.

#1 and #4 improved handling of return codes from zypper for two special cases. Yet there are still several error conditions from zypper left to be dealt with. In most cases the proper reaction will probably be just throwing an error, which is what also happens now. But the return codes from zypper should at least translated into an intelligible error message.

There should be a test suite.

Thought you might want to see this. If zypper is already running, you will get exit 7 from it.
Was thinking a wait loop to attempt might get around that.

server6:/opt/auto-patch # /usr/sbin/auto-patch.py
Traceback (most recent call last):
File "/usr/sbin/auto-patch.py", line 88, in
if patch(stdout=tmpf):
File "/usr/sbin/auto-patch.py", line 67, in patch
if Zypper.patch_check(stdout=stdout) == 0:
File "/usr/sbin/auto-patch.py", line 41, in patch_check
return cls.call(args, stdout=stdout, retcodes={100, 101})
File "/usr/sbin/auto-patch.py", line 31, in call
proc.check_returncode()
File "/usr/lib64/python3.8/subprocess.py", line 444, in check_returncode
raise CalledProcessError(self.returncode, self.args, self.stdout,
subprocess.CalledProcessError: Command '['/usr/bin/zypper', '--quiet', '--non-interactive', 'patch-check']' returned non-zero exit status 7.

Documentation is virtually non existent. There should at least be a manual page for the auto-patch script.

Should improve diagnostics:

Add better error handling. Write a meaningful error message to stderr rather then letting Python emit the stack trace from the unhandled exception.

Add logging. Log relevant events such as zypper calls and return codes with level DEBUG. Log fatal errors (e.g. unhandled exceptions, see above) with level CRITICAL. Log to stderr with level DEBUG if it is a tty and to syslog with level WARN.