Update amulet test definitions

Change-Id: I4f839c80aebc9b40691ff672c66b0c4831b3746d

tests/basic_deployment.py

@@ -95,10 +95,8 @@ class SwiftStorageBasicDeployment(OpenStackAmuletDeployment):
             'overwrite': 'true',
         }
         pxc_config = {
-            'dataset-size': '25%',
+            'innodb-buffer-pool-size': '256M',
             'max-connections': 1000,
-            'root-password': 'ChangeMe123',
-            'sst-password': 'ChangeMe123',
         }
         configs = {
             'keystone': keystone_config,

tests/gate-basic-artful-pike

@@ -21,3 +21,6 @@ from basic_deployment import SwiftStorageBasicDeployment
 if __name__ == '__main__':
     deployment = SwiftStorageBasicDeployment(series='artful')
     deployment.run_tests()
+
+# NOTE(beisner):  Artful target disabled, pending bug:
+# https://bugs.launchpad.net/charm-percona-cluster/+bug/1728132