fix(fs-ro): ignore /run/credentials (https://systemd.io/CREDENTIALS/)

Author: NavidSassan

CHANGELOG.md

@@ -34,6 +34,7 @@ Monitoring Plugins:
 * about-me: error in perfdata if using `--dmidecode` and there is no HW information
 * about-me: fix various errors with `sys_dimensions` on some machines
 * by-ssh: add missing `--verbose` parameter
+* fs-ro: ignore `/run/credentials` (https://systemd.io/CREDENTIALS/)
 * ntp-*: prevent `TypeError: ''=' not supported between instances of 'int' and 'str'`
 
 

check-plugins/fs-ro/README.md

@@ -31,7 +31,8 @@ options:
   --ignore IGNORE  Mount point that should be ignored (repeatable). For
                    example, if you provide `/sys/fs`, all mount points
                    starting with `/sys/fs` will be ignored. Default:
-                   ['/dev/loop', '/proc', '/snap', '/sys/fs']
+                   ['/dev/loop', '/proc', '/run/credentials', '/snap',
+                   '/sys/fs']
   --test TEST      For unit tests. Needs "path-to-stdout-file,path-to-stderr-
                    file,expected-retc".
 ```

check-plugins/fs-ro/fs-ro

@@ -23,13 +23,13 @@ from lib.globals import (STATE_OK, STATE_UNKNOWN,  # pylint: disable=C0413
                           STATE_WARN)
 
 __author__ = 'Linuxfabrik GmbH, Zurich/Switzerland'
-__version__ = '2025100601'
+__version__ = '2025120201'
 
 DESCRIPTION = """This plugin checks for read-only mount points, such as `/` mounted read-only due
                  to file system errors, mounted CD-ROMs or ISO files, etc. It always ignores ramfs
                  and squashfs (snapd) by default."""
 
-DEFAULT_IGNORE = ['/dev/loop', '/proc', '/snap', '/sys/fs']
+DEFAULT_IGNORE = ['/dev/loop', '/proc', '/run/credentials', '/snap', '/sys/fs']
 
 
 def parse_args():