crm_diff(8) - Linux man page
Name
Pacemaker - Part of the Pacemaker cluster resource managerSynopsis
crm_diff original_xml operation [options]Description
crm_diff - A utility for comparing Pacemaker configurations (XML format)The tool produces a custom (diff-like) output which it can also apply like a patch
Options
- -?, --help
- This text
- -$, --version
- Version information
- -V, --verbose
- Increase debug output
Original XML:
- -o, --original=value
- XML is contained in the named file
- -O, --original-string=value
- XML is contained in the supplied string
Operation:
- -n, --new=value
- Compare the original XML to the contents of the named file
- -N, --new-string=value
- Compare the original XML to the contents of the supplied string
- -p, --patch=value
- Patch the original XML with the contents of the named file
Additional Options:
- -c, --cib
- Compare/patch the inputs as a CIB (includes versions details)
- -f, --filter
- Suppress irrelevant differences between the two inputs
Examples
Obtain the two different configuration files by running cibadmin on the two cluster setups to compare:
- # cibadmin --query > cib-old.xml
- # cibadmin --query > cib-new.xml
Calculate and save the difference between the two files:
- # crm_diff --original cib-old.xml --new cib-new.xml > patch.xml
Apply the patch to the original file:
- # crm_diff --original cib-old.xml --patch patch.xml > updated.xml
Apply the patch to the running cluster:
- # cibadmin --patch patch.xml