swarmctl (new!)- Common options

-a - to send request to each node (by default, action affects a single node)

-d [node] - to specify a node

-C [config parm] - to see a current value.  Use with -V to change the value

-E clear  - to clear errors on a node.  Use with -a for all nodes’ errors

-i [log level] - change the log level for the whole cluster

-L [log level] - to change the log level for a single node

-P - to get the PSS, use with -x to send to a file

-Q [{dmesg,hwinfo,healthreport}] - to get dmesg, hwinfo, or generate a health report locally

-R, -S - to restart and shutdown the cluster respectively

-x - used with other options to output the results to a file

download the complete swarmctl training here: 

https://support.cloud.caringo.com/tools/Tech-Support-Scripts-Bundle-swarmctl.pdf