Add db_version command to keystone-manage

The db_version command simply looks at the database and prints the
version to which the database has been migrated.

Change-Id: I50098bf1aa6d57883cc9acc0c4d09d9c8448db7f

1 files changed, 12 insertions, 0 deletions

diff --git a/keystone/cli.py b/keystone/cli.py
index 82ecc18a..ee304210 100644
--- a/keystone/cli.py
+++ b/keystone/cli.py
@@ -23,6 +23,7 @@ from oslo.config import cfg
 import pbr.version
 
 from keystone.common import openssl
+from keystone.common.sql import migration
 from keystone import config
 from keystone.openstack.common import importutils
 from keystone.openstack.common import jsonutils
@@ -65,6 +66,16 @@ class DbSync(BaseApp):
                 driver.db_sync(CONF.command.version)
 
 
+class DbVersion(BaseApp):
+    """Print the current migration version of the database."""
+
+    name = 'db_version'
+
+    @staticmethod
+    def main():
+        print migration.db_version()
+
+
 class BaseCertificateSetup(BaseApp):
     """Common user/group setup for PKI and SSL generation."""
 
@@ -190,6 +201,7 @@ class ImportNovaAuth(BaseApp):
 
 CMDS = [
     DbSync,
+    DbVersion,
     ExportLegacyCatalog,
     ImportLegacy,
     ImportNovaAuth,