List instances
cosmic-cli instance list [flags]
-f, --filter strings filter results (supports regex)
-h, --help help for list
-p, --profile string specify profile(s) to use
--reverse-sort reverse sort order
--show-host show hypervisor hostname in result
--show-id show instance id in result
--show-network show network info in result
--show-service-offering show instance service offering in result
--show-template show instance template name in result
--show-version show instance version in result
-s, --sort-by string field to sort by (default "name")