When we register a volume without a plugin, we need to send a client RPC so that
the node fingerprint can be updated. The registered volume also needs to be
written to client state so that we can restore the fingerprint after a restart.
Co-authored-by: Daniel Bennett <dbennett@hashicorp.com>
store dynamic host volume creations in client state,
so they can be "restored" on agent restart. restore works
by repeating the same Create operation as initial creation,
and expecting the plugin to be idempotent.
this is (potentially) especially important after host restarts,
which may have dropped mount points or such.
* mkdir: HostVolumePluginMkdir: just creates a directory
* example-host-volume: HostVolumePluginExternal:
plugin script that does mkfs and mount loopback
Co-authored-by: Tim Gross <tgross@hashicorp.com>
This changeset implements the RPC handlers for Dynamic Host Volumes, including
the plumbing needed to forward requests to clients. The client-side
implementation is stubbed and will be done under a separate PR.
Ref: https://hashicorp.atlassian.net/browse/NET-11549
