diff --git a/tripleoclient/tests/v2/overcloud_ceph/test_overcloud_ceph.py b/tripleoclient/tests/v2/overcloud_ceph/test_overcloud_ceph.py
index 827eb9224..51e614979 100644
--- a/tripleoclient/tests/v2/overcloud_ceph/test_overcloud_ceph.py
+++ b/tripleoclient/tests/v2/overcloud_ceph/test_overcloud_ceph.py
@@ -44,6 +44,7 @@ class TestOvercloudCephDeploy(fakes.FakePlaybookExecution):
         arglist = ['deployed-metal.yaml', '--yes',
                    '--stack', 'overcloud',
                    '--skip-user-create',
+                   '--mon-ip', '127.0.0.1',
                    '--cephadm-ssh-user', 'jimmy',
                    '--output', 'deployed-ceph.yaml',
                    '--container-namespace', 'quay.io/ceph',
@@ -65,6 +66,7 @@ class TestOvercloudCephDeploy(fakes.FakePlaybookExecution):
                 "working_dir": mock.ANY,
                 "stack_name": 'overcloud',
                 'tripleo_cephadm_ssh_user': 'jimmy',
+                'tripleo_cephadm_first_mon_ip': '127.0.0.1',
                 'tripleo_roles_path': mock.ANY,
                 'tripleo_cephadm_container_ns': 'quay.io/ceph',
                 'tripleo_cephadm_container_image': 'ceph',
diff --git a/tripleoclient/v2/overcloud_ceph.py b/tripleoclient/v2/overcloud_ceph.py
index 7cbcaf28f..365b0bce8 100644
--- a/tripleoclient/v2/overcloud_ceph.py
+++ b/tripleoclient/v2/overcloud_ceph.py
@@ -146,6 +146,14 @@ class OvercloudCephDeploy(command.Command):
                                 "used for the Ceph cluster_network. "
                                 "Defaults to 'storage_mgmt'."),
                             default='storage_mgmt')
+        parser.add_argument('--mon-ip',
+                            help=_(
+                                "IP address of the first Ceph monitor. "
+                                "If not set, an IP from the Ceph "
+                                "public_network of a server with the "
+                                "mon label from the Ceph spec is used. "
+                                "IP must already be active on server."),
+                            default='')
         parser.add_argument('--config',
                             help=_(
                                 "Path to an existing ceph.conf with settings "
@@ -301,6 +309,15 @@ class OvercloudCephDeploy(command.Command):
                                        parsed_args.cluster_network_name)
         extra_vars = {**extra_vars, **ceph_networks_map}
 
+        if parsed_args.mon_ip:
+            if not oooutils.is_valid_ip(parsed_args.mon_ip):
+                raise oscexc.CommandError(
+                    "Invalid IP address '%s' passed to --mon-ip."
+                    % parsed_args.mon_ip)
+            else:
+                extra_vars['tripleo_cephadm_first_mon_ip'] = \
+                    parsed_args.mon_ip
+
         if parsed_args.ceph_spec:
             if not os.path.exists(parsed_args.ceph_spec):
                 raise oscexc.CommandError(