crm_diff - Man Page

Part of the Pacemaker cluster resource manager

Synopsis

crm_diff original_xml operation [options]

Description

Compare two Pacemaker configurations (in XML format) to produce a custom diff-like output, or apply such an output as a patch

Options

Help Options

-h,  --help

Show help options

--help-all

Show all help options

--help-xml

Show original XML options

--help-operation

Show operation options

--help-additional

Show additional options

Original XML

-o,  --original=FILE

XML is contained in the named file

-O,  --original-string=STRING

XML is contained in the supplied string

Operation

-n,  --new=FILE

Compare the original XML to the contents of the named file

-N,  --new-string=STRING

Compare the original XML with the contents of the supplied string

-p,  --patch=FILE

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)

-s, --stdin

-u,  --no-version

Generate the difference without versions details

Application Options

-$,  --version

Display software version and exit

-V,  --verbose

Increase debug output (may be specified multiple times)

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 -x patch.xml

Author

Written by Andrew Beekhof

Referenced By

cibadmin(8).

March 2021 Pacemaker 2.0.5-10.fc35.2 System Administration Utilities