Add missed ceph include on cmp node

Also add docker on gtw node as we need it to run tests

Change-Id: Ia10e76b57f755753bb6d886d86ee2e68f658c105
diff --git a/classes/cluster/virtual-offline-pike-ovs/openstack/gateway.yml b/classes/cluster/virtual-offline-pike-ovs/openstack/gateway.yml
index 5448904..63d0a50 100644
--- a/classes/cluster/virtual-offline-pike-ovs/openstack/gateway.yml
+++ b/classes/cluster/virtual-offline-pike-ovs/openstack/gateway.yml
@@ -1,5 +1,6 @@
 classes:
 - system.linux.system.repo.mcp.apt_mirantis.openstack
+- system.linux.system.repo.mcp.apt_mirantis.docker
 - system.linux.system.repo.mcp.apt_mirantis.extra
 - system.linux.system.repo.mcp.apt_mirantis.saltstack
 - system.neutron.gateway.cluster