Pacemaker − Part of the Pacemaker cluster resource manager
crm_shadow <query>|<command> [options]
perform Pacemaker configuration changes in a sandbox
This command sets up an environment in which configuration tools (cibadmin, crm_resource, etc.) work offline instead of against a live cluster, allowing changes to be previewed and tested for side effects.
Help
Options:
−h, −−help
Show help options
−−help−all
Show all help options
−−help−output
Show output help
−−help−queries
Show query help
−−help−commands
Show command help
−−help−additional
Show additional options
Output
Options:
−−output−as=FORMAT
Specify output format as one of: text (default), xml
−−output−to=DEST
Specify file name for output (or "−" for stdout)
−−text−fancy
Use more highly formatted output (requires −−output−as=text)
Queries:
−w, −−which
Indicate the active shadow copy
−p, −−display
Display the contents of the active shadow copy
−d, −−diff
Display the changes in the active shadow copy
−F, −−file
Display the location of the active shadow copy file
Commands:
−c, −−create=name
Create the named shadow copy of the active cluster configuration
−e, −−create−empty=name
Create the named shadow copy with an empty cluster configuration. Optional: −−validate−with
−C, −−commit=name
Upload the contents of the named shadow copy to the cluster
−D, −−delete=name
Delete the contents of the named shadow copy
−E, −−edit
Edit the contents of the active shadow copy with your favorite $EDITOR
−r, −−reset=name
Recreate named shadow copy from the active cluster configuration
−s, −−switch=name
(Advanced) Switch to the named shadow copy
Additional
Options:
−f, −−force
(Advanced) Force the action to be performed
−b, −−batch
(Advanced) Don’t spawn a new shell
−a, −−all
(Advanced) Upload entire CIB, including status, with −−commit
−v, −−validate−with
(Advanced) Create an older configuration version
Application
Options:
−$, −−version
Display software version and exit
−V, −−verbose
Increase debug output (may be specified multiple times)
Create a blank shadow configuration:
# crm_shadow −−create−empty myShadow
Create a shadow configuration from the running cluster
# crm_shadow −−create myShadow
Display the current shadow configuration:
# crm_shadow −−display
Discard the current shadow configuration (named myShadow):
# crm_shadow −−delete myShadow −−force
Upload current shadow configuration (named myShadow) to running cluster:
# crm_shadow −−commit myShadow
Written by Andrew Beekhof and the Pacemaker project contributors