voltctl supports multiple stack configurations in a single configuration
file. The format of the v3 configuration file that supports multiple
stacks is of the format
apiVersion: v3
currentStack: <stack-name-reference>
stacks:
- name: <stack-name-reference>
<values>As part of the support for multiple stacks a new command line option,
--stack was added. This option can be used to specify which stack
configuration should be used for each command invocation.
A new voltctl subcommand, stack was added to support the listing,
deletion, and addition of stacks to the configuration file. In addtion
the stack use command was added to persistently set the current
stack name back to the configuration. (see voltctl stack --help
for more information)