Should I specify an action when creating stonith devices in my High Availability cluster with pacemaker?

Issue

• When using cman, we used to create a <device/> entry in /etc/cluster/cluster.conf and specify the desired action, like action="off". Should I specify an action when creating a stonith device with pcs?
• Will stonith-ng override my configured action setting on a stonith device with the expected action that needs to be carried out?
• Nodes are being rebooted when joining the cluster and unfencing is carried out
• Nodes reboot when stonith is executing a monitor operation
• How do I change the fence agent so it shuts a node down instead of rebooting the node?
• How do I see what the fence action is set to for a fence agent?
• Nodes get rebooted unexpectedly when I issue a pcs resource cleanup or pcs stonith cleanup, and there don't appear to be any resource failures to cause fencing.
• The below warning is observed at the top of the pcs status output:

WARNINGS:
Following stonith devices have the 'action' option set, it is recommended to set 'pcmk_off_action', 'pcmk_reboot_action' instead: node1-fence