Migrate from crmsh to pcs

From Ubuntu 23.04 Lunar Lobster onwards, pcs is the recommended and supported tool for setting up and managing Corosync/Pacemaker clusters in Ubuntu. This is the final Ubuntu release where crmsh will be supported (but not recommended) so users will have time to migrate away from crmsh.

The migration from crmsh to pcs is not very complex since both have a similar command-line interface (CLI). Here is a direct mapping of some useful commands from crmsh to pcs.

Action	crmsh	pcs
Show configuration (raw XML)	crm configure show xml	pcs cluster cib
Show configuration (human-friendly)	crm configure show	pcs config
Show cluster status	crm status	pcs status
Put a node in standby mode	crm node standby NODE	pcs node standby NODE
Remove a node from standby mode	crm node online NODE	pcs node unstandby NODE
Set cluster property	crm configure property PROPERTY=VALUE	pcs property set PROPERTY=VALUE
List resource agent classes	crm ra classes	pcs resource standards
List available resource agents by standard	crm ra list ocf	`pcs resource agents ocf
List available resource agents by OCF provider	crm ra list ocf pacemaker	pcs resource agents ocf:pacemaker
List available resource agent parameters	crm ra info AGENT	pcs resource describe AGENT
Show available fence agent parameters	crm ra info stonith:AGENT	pcs stonith describe AGENT
Create a resource	crm configure primitive NAME AGENT params PARAMETERS	pcs resource create NAME AGENT PARAMETERS
Show configuration of all resources	crm configure show	pcs resource config
Show configuration of one resource	crm configure show RESOURCE	pcs resource config RESOURCE
Show configuration of fencing resources	crm resource status	pcs stonith config
Start a resource	crm resource start  RESOURCE	pcs resource enable RESOURCE
Stop a resource	crm resource stop RESOURCE	pcs resource disable RESOURCE
Remove a resource	crm configure delete RESOURCE	pcs resource delete RESOURCE
Modify a resource’s instance parameters	crm resource param RESOURCE set PARAMETER=VALUE	pcs resource update RESOURCE PARAMETER=VALUE
Delete a resource’s instance parameters	crm resource param RESOURCE delete PARAMETER	pcs resource update RESOURCE PARAMETER=
List current resource defaults	crm configure show type:rsc_defaults	pcs resource defaults
Set resource defaults	crm configure rsc_defaults OPTION=VALUE	pcs resource defaults OPTION=VALUE
List current operation defaults	crm configure show type:op_defaults	pcs resource op defaults
Set operation defaults	crm configure op_defaults OPTION=VALUE	pcs resource op defaults OPTION=VALUE
Clear fail counts for a resource	crm resource cleanup RESOURCE	pcs resource cleanup
Create a colocation constraint	crm configure colocation NAME INFINITY: RESOURCE_1 RESOURCE_2	pcs constraint colocation add RESOURCE_1 with RESOURCE_2 INFINITY
Create an ordering constraint	crm configure order NAME mandatory: RESOURCE_1 RESOURCE_2	pcs constraint order RESOURCE_1 then RESOURCE_2
Create a location constraint	crm configure location NAME RESOURCE 50: NODE	pcs constraint location RESOURCE prefers NODE=50
Move a resource to a specific node	crm resource move RESOURCE NODE	pcs resource move  RESOURCE NODE
Move a resource away from its current node	crm resource ban RESOURCE NODE	pcs resource ban RESOURCE NODE
Remove any constraints created by moving a resource	crm resource unmove RESOURCE	pcs resource clear RESOURCE