Add command to show pool information for backends

An admin-api extension to show pool info was supported at commit
https://review.openstack.org/#/c/119938/.

This change adds a command to show pool information for backends
using the admin-api. This change also closes the gap for end users.

Partial-Bug: 1403902
Change-Id: I20e0828c5403b73bc44d07eebf08e2aa2deb428a

1 files changed, 18 insertions, 0 deletions

diff --git a/cinderclient/v2/shell.py b/cinderclient/v2/shell.py
index a0f6977..99ad245 100644
--- a/cinderclient/v2/shell.py
+++ b/cinderclient/v2/shell.py
@@ -1948,3 +1948,21 @@ def do_cgsnapshot_delete(cs, args):
     if failure_count == len(args.cgsnapshot):
         raise exceptions.CommandError("Unable to delete any of specified "
                                       "cgsnapshots.")
+
+
+@utils.arg('--detail',
+           action='store_true',
+           help='Show detailed information about pools.')
+@utils.service_type('volumev2')
+def do_get_pools(cs, args):
+    """Show pool information for backends. Admin only."""
+    pools = cs.volumes.get_pools(args.detail)
+    infos = dict()
+    infos.update(pools._info)
+
+    for info in infos['pools']:
+        backend = dict()
+        backend['name'] = info['name']
+        if args.detail:
+            backend.update(info['capabilities'])
+        utils.print_dict(backend)