Running stage 2 fails with an exception related to a bad character range

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Environment

SUSE Enterprise Storage 6

Situation

Running DeepSea stage 2 results in the following example exception:

Exception occurred in runner push.proposal: Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/salt/client/mixins.py", line 385, in low
data['return'] = func(*args, **kwargs)
File "/srv/modules/runners/push.py", line 82, in proposal
common = pillar_data.organize(filename)
File "/srv/modules/runners/push.py", line 221, in organize
proposal_files = _parse(self.proposals_dir + "/" + line)
File "/srv/modules/runners/push.py", line 301, in _parse
files = glob.glob(line)
files = glob.glob(line)
File "/usr/lib64/python3.6/glob.py", line 20, in glob
return list(iglob(pathname, recursive=recursive))
File "/usr/lib64/python3.6/glob.py", line 72, in _iglob
for name in glob_in_dir(dirname, basename, dironly):
File "/usr/lib64/python3.6/glob.py", line 83, in _glob1
return fnmatch.filter(names, pattern)
File "/usr/lib64/python3.6/fnmatch.py", line 52, in filter
match = _compile_pattern(pat)
File "/usr/lib64/python3.6/fnmatch.py", line 46, in _compile_pattern
return re.compile(res).match
File "/usr/lib64/python3.6/re.py", line 233, in compile
return _compile(pattern, flags)
File "/usr/lib64/python3.6/re.py", line 301, in _compile
p = sre_compile.compile(pattern, flags)
File "/usr/lib64/python3.6/sre_compile.py", line 562, in compile
p = sre_parse.parse(p, flags)
File "/usr/lib64/python3.6/sre_parse.py", line 855, in parse
p = _parse_sub(source, pattern, flags & SRE_FLAG_VERBOSE, 0)
File "/usr/lib64/python3.6/sre_parse.py", line 416, in _parse_sub
not nested and not items))
File "/usr/lib64/python3.6/sre_parse.py", line 765, in _parse
p = _parse_sub(source, state, sub_verbose, nested + 1)
File "/usr/lib64/python3.6/sre_parse.py", line 416, in _parse_sub
not nested and not items))
File "/usr/lib64/python3.6/sre_parse.py", line 553, in _parse
raise source.error(msg, len(this) + 1 + len(that))
sre_constants.error: bad character range 2-1 at position 9

Resolution

Edit the "/srv/pillar/ceph/proposals/policy.cfg" file and use valid globbing to target minions or target minions individually without the use of globbing.

Cause

Invalid globbing is being used to target minions in the "/srv/pillar/ceph/proposals/policy.cfg" file.

Additional Information

The error is related to how DeepSea handles globbing, for the example provided above the problem entries in the policy.cfg file were the storage minions, excerpt of the problematic entry:

#STORAGE
role-storage/cluster/node[2-18]*.sls

Specifying something like [2-18] as per the above is not interpreted as any number between 2 and 18 as would be expected, it's interpreted as the character range 2-1 which is invalid, because it's backwards (hence the exception), plus the character 8.

For the above example, one possible solution while still using globbing is to specify the minions as follows instead:

role-storage/cluster/node[2-9]*.sls
role-storage/cluster/node1[0-8]*.sls

Disclaimer

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