Enable bionic/stein and disco/stein functional tests

Drop explicit install of python-ceph; ceph-common has an
appropriate dependency on the required python{3}-ceph package
so this is not required, and breaks on Stein where Python 2
packages are no longer provided.

Closes-Bug: 1824154
Change-Id: Ia219258f73f038170bc5a070d562e499459fe246

hooks/ceph.py

@@ -45,7 +45,7 @@ LEADER = 'leader'
 PEON = 'peon'
 QUORUM = [LEADER, PEON]
 
-PACKAGES = ['ceph', 'gdisk', 'ntp', 'btrfs-tools', 'python-ceph', 'xfsprogs']
+PACKAGES = ['ceph', 'gdisk', 'ntp', 'btrfs-tools', 'xfsprogs']
 
 
 def ceph_user():

tests/dev-basic-disco-stein

+#!/usr/bin/env python
+
+"""Amulet tests on a basic ceph deployment on disco-stein."""
+
+from basic_deployment import CephBasicDeployment
+
+if __name__ == '__main__':
+    deployment = CephBasicDeployment(series='disco')
+    deployment.run_tests()

tests/gate-basic-bionic-stein

+#!/usr/bin/env python
+
+"""Amulet tests on a basic ceph deployment on bionic-stein."""
+
+from basic_deployment import CephBasicDeployment
+
+if __name__ == '__main__':
+    deployment = CephBasicDeployment(series='bionic',
+                                     openstack='cloud:bionic-stein',
+                                     source='cloud:bionic-stein')
+    deployment.run_tests()