[COMMON][MARIADB] Upgrade Mariadb DB galera version

Mariadb DB Galera containers version is outdated and unmaintained. We
need them to move to a new image provider.
As new image provider is not compatible with our old templates, we
also update the templates (by reworking bitnami mariadb-galera chart).
An update of global mariadb image is also done in order to match mariadb
galera version.

Issue-ID: OOM-1720
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: Ib9976227759e90022183d4f37fc655143be4d6ac
diff --git a/kubernetes/common/mariadb-galera/templates/pdb.yaml b/kubernetes/common/mariadb-galera/templates/pdb.yaml
new file mode 100644
index 0000000..4697934
--- /dev/null
+++ b/kubernetes/common/mariadb-galera/templates/pdb.yaml
@@ -0,0 +1,30 @@
+{{/*
+# Copyright © 2020 Bitnami, Orange
+#
+# 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.
+*/}}
+
+{{- if .Values.podDisruptionBudget.create }}
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata: {{- include "common.resourceMetadata" . | nindent 2 }}
+spec:
+{{- if .Values.podDisruptionBudget.minAvailable }}
+  minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
+{{- end }}
+{{- if .Values.podDisruptionBudget.maxUnavailable }}
+  maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
+{{- end }}
+  selector:
+    matchLabels: {{- include "common.matchLabels" . | nindent 6 }}
+{{- end }}