Add PLA charm

Change-Id: I23d9f49e7ac92150e9325f1400c22c816402f0a4
Signed-off-by: David Garcia <david.garcia@canonical.com>
diff --git a/installers/charm/pla/metadata.yaml b/installers/charm/pla/metadata.yaml
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+#   Copyright 2020 Canonical Ltd.
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+name: pla
+summary: A Placement charm for Opensource MANO
+description: |
+  Placement module for OSM
+series:
+  - kubernetes
+min-juju-version: 2.7.0
+deployment:
+  type: stateless
+  service: cluster
+requires:
+  kafka:
+    interface: kafka
+  mongo:
+    interface: mongo
+  mysql:
+    interface: mysql
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