Merge "[COMMON][MARIADB] Upgrade Mariadb DB galera version"

14 files changed, 524 insertions, 485 deletions

diff --git a/kubernetes/common/mariadb-galera/templates/NOTES.txt b/kubernetes/common/mariadb-galera/templates/NOTES.txt
index 96f2fd8c63..d6a9ac0079 100644
--- a/kubernetes/common/mariadb-galera/templates/NOTES.txt
+++ b/kubernetes/common/mariadb-galera/templates/NOTES.txt
@@ -1,18 +1,24 @@
+{{/*
 # Copyright © 2018 Amdocs, Bell Canada
+# Copyright © 2020 Bitnami, Orange
 #
-# This file is licensed under the CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE
+# 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
 #
-# Full license text at https://creativecommons.org/licenses/by/4.0/legalcode
-
-MariaDB-Galera service can be accessed via port 3306 on the following DNS name from within your cluster:
-{{ include "common.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
-
-To connect to your database:
+#       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.
+*/}}
 
-1. Run a pod that you can use as a client:
+** Please be patient while the chart is being deployed **
 
-    kubectl run {{ include "common.fullname" . }}-client --rm --tty -i --image mariadb --command -- bash
+Tip:
 
-2. Connect using the mysql cli, then provide your password:
-    $ mysql -h {{ include "common.fullname" . }} {{- if .Values.mysqlRootPassword }} -p {{ .Values.mysqlRootPassword }}{{- end -}}
+  Watch the deployment status using the command:
 
+    kubectl get sts -w --namespace {{ .Release.Namespace }} -l app.kubernetes.io/instance={{ .Release.Name }}
diff --git a/kubernetes/common/mariadb-galera/templates/backup/cronjob.yaml b/kubernetes/common/mariadb-galera/templates/backup/cronjob.yaml
index 1c780179be..210fbd02ba 100644
--- a/kubernetes/common/mariadb-galera/templates/backup/cronjob.yaml
+++ b/kubernetes/common/mariadb-galera/templates/backup/cronjob.yaml
@@ -1,5 +1,6 @@
 {{/*
 # Copyright © 2019 Amdocs, Bell Canada, Samsung Electronics
+# Copyright © 2020 Orange
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,17 +14,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 */}}
+
 {{- if .Values.backup.enabled }}
 apiVersion: batch/v1beta1
 kind: CronJob
 metadata:
   name: {{ include "common.fullname" . }}-backup
   namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.fullname" . }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    release: {{ include "common.release" . }}
-    heritage: {{ .Release.Service }}
+  labels: {{- include "common.labels" . | nindent 4 }}
 spec:
   schedule: {{ .Values.backup.cron | quote }}
   concurrencyPolicy: Forbid
@@ -32,141 +30,130 @@ spec:
     spec:
       template:
         spec:
+          serviceAccountName: {{ include "common.fullname" (dict "suffix" "read" "dot" . )}}
+          {{ include "common.podSecurityContext" . | indent 10 | trim}}
           restartPolicy: Never
-          initContainers:
-          - command:
-            - /app/ready.py
-            args:
-            - --container-name
-            - {{ include "common.name" . }}
-            env:
-            - name: NAMESPACE
-              valueFrom:
-                fieldRef:
-                  apiVersion: v1
-                  fieldPath: metadata.namespace
-            image: {{ include "repositoryGenerator.image.readiness" . }}
-            imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-            name: {{ include "common.name" . }}-readiness
-          - name: mariadb-galera-backup-init
-            image: {{ include "repositoryGenerator.image.mariadb" . }}
-            imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-            command:
-            - /bin/bash
-            - -c
-            - |
-              remove_dir(){
-                dirToRemove=$1
-                rm -rf $dirToRemove
-                echo "Failed" > /backup/backup.log
-                echo "Backup failed!!!"
-              }
+          initContainers: {{- include "common.readinessCheck.waitFor" . | nindent 12 }}
+            - name: mariadb-galera-backup-init
+              image: {{ include "repositoryGenerator.image.mariadb" . }}
+              imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
+              {{ include "common.containerSecurityContext" . | indent 14 | trim }}
+              command:
+                - /bin/bash
+                - -c
+                - |
+                    remove_dir(){
+                      dirToRemove=$1
+                      rm -rf $dirToRemove
+                      echo "Failed" > /backup/backup.log
+                      echo "Backup failed!!!"
+                    }
 
-              target_dir=/backup/backup-`date +%s`
-              mkdir -p $target_dir
+                    target_dir=/backup/backup-`date +%s`
+                    mkdir -p $target_dir
 
-              mysqlhost={{ include "common.fullname" . }}-{{ sub .Values.replicaCount 1 }}.{{ .Values.service.name }}
+                    mysqlhost={{ include "common.servicename" . }}.{{ include "common.namespace" . }}
 
-              mariabackup --backup --target-dir=$target_dir --user=root --password=$DB_PASS --host=$mysqlhost
+                    mariabackup --backup --target-dir=$target_dir --user=root --password=$DB_PASS --host=$mysqlhost
 
-              ret_code=$?
-              if [ $ret_code -ne 0 ]; then
-                remove_dir $target_dir
-                exit 0
-              fi
+                    ret_code=$?
+                    if [ $ret_code -ne 0 ]; then
+                      remove_dir $target_dir
+                      exit 0
+                    fi
 
-              echo "Starting Backup Preparation!!!"
-              mariabackup --prepare --target-dir=$target_dir
-              ret_code=$?
-              if [ $ret_code -ne 0 ]; then
-                remove_dir $target_dir
-                exit 0
-              fi
-              echo "Success" > /backup/backup.log
-              echo "Backup Successful!!!"
-            env:
-            - name: DB_PASS
-              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.rootPassUID" .) "key" "password") | indent 14}}
-            volumeMounts:
-            - name: backup-dir
-              mountPath: /backup
-            - name: db-data
-              mountPath: /var/lib/mysql
+                    echo "Starting Backup Preparation!!!"
+                    mariabackup --prepare --target-dir=$target_dir
+                    ret_code=$?
+                    if [ $ret_code -ne 0 ]; then
+                      remove_dir $target_dir
+                      exit 0
+                    fi
+                    echo "Success" > /backup/backup.log
+                    echo "Backup Successful!!!"
+              env:
+                - name: DB_PASS
+                  {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.rootPassUID" .) "key" "password") | indent 18 }}
+              resources: {{ include "common.resources" . | nindent 12 }}
+              volumeMounts:
+                - name: backup-dir
+                  mountPath: /backup
           containers:
-          - name: mariadb-backup-validate
-            image: {{ include "repositoryGenerator.image.mariadb" . }}
-            imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-            env:
-            - name: MYSQL_ROOT_PASSWORD
-              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.rootPassUID" .) "key" "password") | indent 14}}
-            command:
-            - /bin/bash
-            - -c
-            - |
-              remove_dir(){
-                dirToRemove=$1
-                rm -rf $dirToRemove
-                echo "Validation Failed!!!";
-              }
+            - name: mariadb-backup-validate
+              image: {{ include "repositoryGenerator.image.mariadb" . }}
+              imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
+              {{ include "common.containerSecurityContext" . | indent 14 | trim }}
+              env:
+                - name: MYSQL_ROOT_PASSWORD
+                  {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.rootPassUID" .) "key" "password") | indent 18 }}
+              command:
+                - /bin/bash
+                - -c
+                - |
+                  remove_dir(){
+                    dirToRemove=$1
+                    rm -rf $dirToRemove
+                    echo "Validation Failed!!!";
+                  }
 
-              backup_result=`cat /backup/backup.log`
-              rm -rf /backup/backup.log
+                  backup_result=`cat /backup/backup.log`
+                  rm -rf /backup/backup.log
 
-              if [ "$backup_result" == "Failed" ]; then
-                echo "Backup Failed!!! So Validation Failed!!!";
-                exit 0
-              fi
+                  if [ "$backup_result" == "Failed" ]; then
+                    echo "Backup Failed!!! Validation Failed!!!";
+                    exit 0
+                  fi
 
-              target_dir=$(ls -td -- /backup/backup-* | head -n 1)
-              cp -Ra $target_dir/* /var/lib/mysql/
+                  target_dir=$(ls -td -- /backup/backup-* | head -n 1)
+                  cp -Ra $target_dir/* /var/lib/mysql/
 
-              if [ ! "$(ls -A /var/lib/mysql)" ]; then
-                remove_dir $target_dir
-                exit 0
-              fi
+                  if [ ! "$(ls -A /var/lib/mysql)" ]; then
+                    remove_dir $target_dir
+                    exit 0
+                  fi
 
-              /docker-entrypoint.sh mysqld &
+                  /docker-entrypoint.sh mysqld &
 
-              count=0
-              until mysql --user=root --password=$MYSQL_ROOT_PASSWORD  -e "SELECT 1";
-                do sleep 3;
-                count=`expr $count + 1`;
-                if [ $count -ge 30 ]; then
-                  remove_dir $target_dir
-                  exit 0;
-                fi;
-              done
+                  count=0
+                  until mysql --user=root --password=$MYSQL_ROOT_PASSWORD  -e "SELECT 1";
+                    do sleep 3;
+                    count=`expr $count + 1`;
+                    if [ $count -ge 30 ]; then
+                      remove_dir $target_dir
+                      exit 0;
+                    fi;
+                  done
 
-              mysqlcheck -A  --user=root --password=$MYSQL_ROOT_PASSWORD > /tmp/output.log
-              error_lines=`cat /tmp/output.log| grep -v "OK" | wc -l`
+                  mysqlcheck -A  --user=root --password=$MYSQL_ROOT_PASSWORD > /tmp/output.log
+                  error_lines=`cat /tmp/output.log| grep -v "OK" | wc -l`
 
-              cat /tmp/output.log
+                  cat /tmp/output.log
 
-              if [ $error_lines -gt 1 ];then
-                remove_dir $target_dir
-              else
-                echo "Validation successful!!!"
-                cd /backup
-                totalFiles=`ls -t | grep "backup-" | wc -l`
-                if [ $totalFiles -gt {{ .Values.backup.retentionPeriod }} ]; then
-                  filestoDelete=`expr $totalFiles - {{ .Values.backup.retentionPeriod }}`
-                  ls -tr | grep backup | head -$filestoDelete | xargs rm -rf
-                fi
-              fi
-            volumeMounts:
-            - mountPath: /etc/localtime
-              name: localtime
-              readOnly: true
-            - name: backup-dir
-              mountPath: /backup
+                  if [ $error_lines -gt 1 ];then
+                    remove_dir $target_dir
+                  else
+                    echo "Validation successful!!!"
+                    cd /backup
+                    totalFiles=`ls -t | grep "backup-" | wc -l`
+                    if [ $totalFiles -gt {{ .Values.backup.retentionPeriod }} ]; then
+                      filestoDelete=`expr $totalFiles - {{ .Values.backup.retentionPeriod }}`
+                      ls -tr | grep backup | head -$filestoDelete | xargs rm -rf
+                    fi
+                  fi
+              resources: {{ include "common.resources" . | nindent 12 }}
+              volumeMounts:
+                - mountPath: /etc/localtime
+                  name: localtime
+                  readOnly: true
+                - name: backup-dir
+                  mountPath: /backup
+          imagePullSecrets:
+            - name: {{ include "common.namespace" . }}-docker-registry-key
           volumes:
-          - name: localtime
-            hostPath:
-              path: /etc/localtime
-          - name: backup-dir
-            persistentVolumeClaim:
-              claimName: {{ include "common.fullname" . }}-backup-data
-          - name: db-data
-            persistentVolumeClaim:
-              claimName: {{ include "common.fullname" . }}-data-{{ include "common.fullname" . }}-{{ sub .Values.replicaCount 1 }}
+            - name: localtime
+              hostPath:
+                path: /etc/localtime
+            - name: backup-dir
+              persistentVolumeClaim:
+                claimName: {{ include "common.fullname" . }}-backup-data
 {{- end }}
diff --git a/kubernetes/common/mariadb-galera/templates/backup/pv.yaml b/kubernetes/common/mariadb-galera/templates/backup/pv.yaml
index ec6f44d955..30eb74b059 100644
--- a/kubernetes/common/mariadb-galera/templates/backup/pv.yaml
+++ b/kubernetes/common/mariadb-galera/templates/backup/pv.yaml
@@ -1,5 +1,6 @@
 {{/*
-# Copyright © 2019 Amdocs, Bell Canada, Orange
+# Copyright © 2019 Amdocs, Bell Canada
+# Copyright © 2019-2020 Orange
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,28 +15,29 @@
 # limitations under the License.
 */}}
 {{- if .Values.backup.enabled }}
-{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) -}}
+{{- if and .Values.backup.persistence.enabled (not .Values.backup.persistence.existingClaim) -}}
 {{- if eq "True" (include "common.needPV" .) -}}
 ---
 apiVersion: v1
 kind: PersistentVolume
 metadata:
-  name: {{ include "common.fullname" . }}-backup-data
+  name: {{ include "common.fullname" . }}-backup
   namespace: {{ include "common.namespace" . }}
   labels:
-    app: {{ include "common.name" . }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    heritage: {{ .Release.Service }}
-    name: {{ include "common.fullname" . }}-backup-data
+    app: {{ include "common.fullname" . }}-backup
+    app.kubernetes.io/name: {{ include "common.name" . }}
+    helm.sh/chart: {{ include "common.chart" . }}
+    app.kubernetes.io/instance: {{ include "common.release" . }}-backup
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
 spec:
   capacity:
-    storage: {{ .Values.persistence.size }}
+    storage: {{ .Values.backup.persistence.size }}
   accessModes:
-  - {{ .Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ .Values.persistence.volumeReclaimPolicy }}
+  - {{ .Values.backup.persistence.accessMode }}
+  persistentVolumeReclaimPolicy: {{ .Values.backup.persistence.volumeReclaimPolicy }}
   storageClassName: "{{ include "common.fullname" . }}-data-backup"
   hostPath:
-    path: {{ .Values.global.persistence.backup.mountPath | default .Values.persistence.backup.mountPath }}/{{ include "common.namespace" $ }}/{{ include "common.fullname" $ }}
+    path: {{ .Values.global.persistence.mountPath | default .Values.persistence.mountPath }}/{{ include "common.namespace" . }}/{{ include "common.fullname" . }}
 {{- end -}}
 {{- end -}}
 {{- end -}}
diff --git a/kubernetes/common/mariadb-galera/templates/backup/pvc.yaml b/kubernetes/common/mariadb-galera/templates/backup/pvc.yaml
index 807833ae93..5dd8a3f52f 100644
--- a/kubernetes/common/mariadb-galera/templates/backup/pvc.yaml
+++ b/kubernetes/common/mariadb-galera/templates/backup/pvc.yaml
@@ -1,5 +1,6 @@
 {{/*
-# Copyright © 2019 Amdocs, Bell Canada, Orange
+# Copyright © 2019 Amdocs, Bell Canada
+# Copyright © 2019-2020 Orange
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,7 +15,7 @@
 # limitations under the License.
 */}}
 {{- if .Values.backup.enabled }}
-{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) -}}
+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
 ---
 kind: PersistentVolumeClaim
 apiVersion: v1
@@ -22,21 +23,22 @@ metadata:
   name: {{ include "common.fullname" . }}-backup-data
   namespace: {{ include "common.namespace" . }}
   labels:
-    app: {{ include "common.name" . }}-backup
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
-    release: "{{ include "common.release" . }}"
-    heritage: "{{ .Release.Service }}"
-{{- if .Values.persistence.annotations }}
+    app: {{ include "common.fullname" . }}-backup
+    app.kubernetes.io/name: {{ include "common.name" . }}
+    helm.sh/chart: {{ include "common.chart" . }}
+    app.kubernetes.io/instance: {{ include "common.release" . }}-backup
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- if .Values.backup.persistence.annotations }}
   annotations:
-{{ toYaml .Values.persistence.annotations | indent 4 }}
+{{ toYaml .Values.backup.persistence.annotations | indent 4 }}
 {{- end }}
 spec:
   accessModes:
-    - {{ .Values.persistence.accessMode }}
+    - {{ .Values.backup.persistence.accessMode }}
   resources:
     requests:
-      storage: {{ .Values.persistence.size }}
-{{- if eq "True" (include "common.needPV" .) -}}
+      storage: {{ .Values.backup.persistence.size }}
+{{- if (include "common.needPV" .) }}
   storageClassName: "{{ include "common.fullname" . }}-data-backup"
 {{- else }}
   storageClassName: {{ include "common.storageClass" . }}
diff --git a/kubernetes/common/mariadb-galera/templates/configmap.yaml b/kubernetes/common/mariadb-galera/templates/configmap.yaml
index 685901fa95..c95a234fb7 100644
--- a/kubernetes/common/mariadb-galera/templates/configmap.yaml
+++ b/kubernetes/common/mariadb-galera/templates/configmap.yaml
@@ -1,6 +1,6 @@
 {{/*
 # Copyright © 2018 Amdocs, Bell Canada
-# Copyright © 2020 Samsung Electronics, and TATA Communications
+# Copyright © 2020 Samsung Electronics, TATA Communications, Bitnami, Orange
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,65 +14,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 */}}
-{{- if .Values.externalConfig }}
+
+{{ if .Values.mariadbConfiguration }}
 apiVersion: v1
 kind: ConfigMap
 metadata:
-  name: {{ include "common.fullname" . }}-external-config
+  name: {{ printf "%s-configuration" (include "common.fullname" .) }}
   namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    release: {{ include "common.release" . }}
-    heritage: {{ .Release.Service }}
+  labels: {{- include "common.labels" . | nindent 4 }}
 data:
-  my_extra.cnf: |
-{{ .Values.externalConfig | indent 4 }}
-{{- end }}
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: {{ include "common.fullname" . }}
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    release: {{ include "common.release" . }}
-    heritage: {{ .Release.Service }}
-data:
-{{ tpl (.Files.Glob "resources/config/*").AsConfig . | indent 2 }}
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: {{ include "common.fullname" . }}-upgrade-deployment
-  annotations:
-    "helm.sh/hook": "pre-upgrade"
-    "helm.sh/hook-weight": "0"
-    "helm.sh/hook-delete-policy": hook-succeeded
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-data:
-{{ tpl (.Files.Glob "resources/*").AsConfig . | indent 2 }}
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: {{ include "common.fullname" . }}-post-upgrade-deployment
-  annotations:
-    "helm.sh/hook": "post-upgrade"
-    "helm.sh/hook-weight": "0"
-    "helm.sh/hook-delete-policy": hook-succeeded
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-data:
-{{ tpl (.Files.Glob "resources/post-upgrade-script.sh").AsConfig . | indent 2 }}
+  my.cnf: |
+{{ .Values.mariadbConfiguration | indent 4 }}
+{{- end }}
\ No newline at end of file
diff --git a/kubernetes/common/mariadb-galera/templates/job.yaml b/kubernetes/common/mariadb-galera/templates/job.yaml
deleted file mode 100644
index 250279ace2..0000000000
--- a/kubernetes/common/mariadb-galera/templates/job.yaml
+++ /dev/null
@@ -1,109 +0,0 @@
-apiVersion: batch/v1
-kind: Job
-metadata:
-  name: {{ include "common.fullname" . }}-pre-upgrade
-  annotations:
-    "helm.sh/hook": "pre-upgrade"
-    "helm.sh/hook-weight": "1"
-    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
-spec:
-  template:
-    spec:
-      securityContext:
-        fsGroup: 1001
-        runAsUser: 1001
-      containers:
-      - name: mariadb-job-pre-upgrade
-        image: {{ include "repositoryGenerator.image.kubectl" . }}
-        imagePullPolicy: IfNotPresent
-        env:
-          - name: NAMESPACE_ENV
-            valueFrom:
-                fieldRef:
-                  apiVersion: v1
-                  fieldPath: metadata.namespace
-        command: ["/bin/bash", "-c", "--"]
-        args: ["/upgrade/upgrade-scripts.sh"]
-        volumeMounts:
-        - name: config-mariadb-upgrade
-          mountPath: /upgrade
-      volumes:
-      - name: config-mariadb-upgrade
-        configMap:
-            name: {{ include "common.fullname" . }}-upgrade-deployment
-            defaultMode: 0777
-      restartPolicy: OnFailure
----
-apiVersion: batch/v1
-kind: Job
-metadata:
-  name: {{ include "common.fullname" . }}-post-upgrade
-  annotations:
-    "helm.sh/hook": "post-upgrade"
-    "helm.sh/hook-weight": "1"
-    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
-spec:
-  template:
-    spec:
-      securityContext:
-        fsGroup: 1001
-        runAsUser: 0
-      initContainers:
-      - image: {{ include "repositoryGenerator.image.readiness" . }}
-        name: mariadb-galera-upgrade-readiness
-        env:
-        - name: NAMESPACE
-          valueFrom:
-            fieldRef:
-              apiVersion: v1
-              fieldPath: metadata.namespace
-        command:
-        - /app/ready.py
-        args:
-        - --container-name
-        - mariadb-galera
-      containers:
-      - name: mariadb-job-post-upgrade
-        image: {{ include "repositoryGenerator.image.kubectl" . }}
-        imagePullPolicy: IfNotPresent
-        env:
-        - name: NAMESPACE_ENV
-          valueFrom:
-              fieldRef:
-                apiVersion: v1
-                fieldPath: metadata.namespace
-        - name: REPLICA_COUNT
-          value: "{{ .Values.replicaCount }}"
-        command: ["/bin/bash", "-c", "--"]
-        args: ["/upgrade/post-upgrade-script.sh"]
-        volumeMounts:
-        - name: config-mariadb-upgrade
-          mountPath: /upgrade
-      volumes:
-      - name: config-mariadb-upgrade
-        configMap:
-            name: {{ include "common.fullname" . }}-post-upgrade-deployment
-            defaultMode: 0777
-      restartPolicy: OnFailure
----
-apiVersion: batch/v1
-kind: Job
-metadata:
-  name: {{ include "common.fullname" . }}-post-delete
-  annotations:
-    "helm.sh/hook": "post-delete"
-    "helm.sh/hook-weight": "1"
-    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
-spec:
-  template:
-    spec:
-      containers:
-      - name: mariadb-job-post-delete
-        image: {{ include "repositoryGenerator.image.kubectl" . }}
-        imagePullPolicy: IfNotPresent
-        command: ["/bin/bash", "-c", "--"]
-        args:
-        - for ((index=0;index<{{ $.Values.replicaCount }};index+=1));
-          do kubectl delete pvc "{{ include "common.fullname" . }}-data-{{ include "common.fullname" . }}-$index";
-          done; kubectl delete deployment {{ include "common.fullname" . }}-upgrade-deployment;
-      restartPolicy: OnFailure
diff --git a/kubernetes/common/mariadb-galera/templates/metrics-svc.yaml b/kubernetes/common/mariadb-galera/templates/metrics-svc.yaml
new file mode 100644
index 0000000000..e71351e9cb
--- /dev/null
+++ b/kubernetes/common/mariadb-galera/templates/metrics-svc.yaml
@@ -0,0 +1,34 @@
+{{/*
+# 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 default false .Values.global.metrics.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ printf "%s-metrics" (include "common.fullname" .) }}
+  namespace: {{ include "common.namespace" . }}
+  labels: {{- include "common.labels" . | nindent 4 }}
+  {{- if .Values.metrics.service.annotations }}
+  annotations: {{- include "common.tplValue" (dict "value" .Values.metrics.service.annotations "context" .) | nindent 4 }}
+  {{- end }}
+spec:
+  type: {{ .Values.metrics.service.type }}
+  ports:
+    - name: metrics
+      port: {{ .Values.metrics.service.port }}
+      targetPort: metrics
+  selector: {{- include "common.matchLabels" . | nindent 4 }}
+{{- end }}
diff --git a/kubernetes/common/mariadb-galera/templates/pdb.yaml b/kubernetes/common/mariadb-galera/templates/pdb.yaml
new file mode 100644
index 0000000000..4697934879
--- /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 }}
diff --git a/kubernetes/common/mariadb-galera/templates/prometheusrules.yaml b/kubernetes/common/mariadb-galera/templates/prometheusrules.yaml
new file mode 100644
index 0000000000..cf0ab566a4
--- /dev/null
+++ b/kubernetes/common/mariadb-galera/templates/prometheusrules.yaml
@@ -0,0 +1,31 @@
+{{/*
+# 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 default false (and .Values.global.metrics.enabled .Values.global.metrics.custom_resources) }}
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+  name: {{ template "common.fullname" . }}
+  namespace: {{ include "common.namespace" . }}
+  labels: {{- include "common.labels" . | nindent 4 }}
+    {{- toYaml .Values.metrics.prometheusRules.selector | nindent 4 }}
+spec:
+  groups:
+  - name: {{ template "common.fullname" . }}
+    rules:
+      {{- toYaml .Values.metrics.prometheusRules.rules | nindent 6 }}
+{{- end }}
+
diff --git a/kubernetes/common/mariadb-galera/templates/pv.yaml b/kubernetes/common/mariadb-galera/templates/pv.yaml
index 579b3475d1..54a02cf2db 100644
--- a/kubernetes/common/mariadb-galera/templates/pv.yaml
+++ b/kubernetes/common/mariadb-galera/templates/pv.yaml
@@ -1,5 +1,6 @@
 {{/*
-# Copyright © 2019 Amdocs, Bell Canada, Orange
+# Copyright © 2018 Amdocs, Bell Canada
+# Copyright © 2019-2020 Orange
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,33 +15,4 @@
 # limitations under the License.
 */}}
 
-{{- $global := . }}
-{{- if and $global.Values.persistence.enabled (not $global.Values.persistence.existingClaim) }}
-{{- if eq "True" (include "common.needPV" .) -}}
-{{- range $i := until (int $global.Values.replicaCount)}}
-kind: PersistentVolume
-apiVersion: v1
-metadata:
-  name: {{ include "common.fullname" $global }}-data-{{ $i }}
-  namespace: {{ include "common.namespace" $global }}
-  labels:
-    app: {{ include "common.fullname" $global }}
-    chart: "{{ $global.Chart.Name }}-{{ $global.Chart.Version | replace "+" "_" }}"
-    release: "{{ include "common.release" $global }}"
-    heritage: "{{ $global.Release.Service }}"
-    name: {{ include "common.fullname" $global }}
-spec:
-  capacity:
-    storage: {{ $global.Values.persistence.size}}
-  accessModes:
-    - {{ $global.Values.persistence.accessMode }}
-  persistentVolumeReclaimPolicy: {{ $global.Values.persistence.volumeReclaimPolicy }}
-  storageClassName: "{{ include "common.fullname" $global }}-data"
-  hostPath:
-    path: {{ $global.Values.global.persistence.mountPath | default $global.Values.persistence.mountPath }}/{{ include "common.release" $global }}/{{ $global.Values.persistence.mountSubPath }}-{{$i}}
-{{if ne $i (int $global.Values.replicaCount) }}
----
-{{- end -}}
-{{- end -}}
-{{- end -}}
-{{- end -}}
+{{ include "common.replicaPV" . }}
diff --git a/kubernetes/common/mariadb-galera/templates/secrets.yaml b/kubernetes/common/mariadb-galera/templates/secrets.yaml
index 27c9a3aaee..527f41266d 100644
--- a/kubernetes/common/mariadb-galera/templates/secrets.yaml
+++ b/kubernetes/common/mariadb-galera/templates/secrets.yaml
@@ -1,6 +1,7 @@
 {{/*
 # Copyright © 2018 Amdocs, Bell Canada
 # Copyright © 2019 Samsung Electronics
+# Copyright © 2019-2020 Orange
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,4 +16,4 @@
 # limitations under the License.
 */}}
 
-{{ include "common.secretFast" . }}
+{{ include "common.secretFast" . }}
\ No newline at end of file
diff --git a/kubernetes/common/mariadb-galera/templates/service.yaml b/kubernetes/common/mariadb-galera/templates/service.yaml
index 69d8999f67..75aff985e5 100644
--- a/kubernetes/common/mariadb-galera/templates/service.yaml
+++ b/kubernetes/common/mariadb-galera/templates/service.yaml
@@ -1,5 +1,6 @@
 {{/*
 # Copyright © 2018 Amdocs, Bell Canada
+# Copyright © 2020 Orange
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,23 +15,6 @@
 # limitations under the License.
 */}}
 
-apiVersion: v1
-kind: Service
-metadata:
-  annotations:
-    service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"
-#  name: {{ include "common.servicename" . }}
-  name: {{ .Values.service.name }}
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.fullname" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
-    release: "{{ include "common.release" . }}"
-    heritage: "{{ .Release.Service }}"
-spec:
-  ports:
-    - name: {{ .Values.service.portName }}
-      port: {{ .Values.service.internalPort }}
-  clusterIP: None
-  selector:
-    app: {{ include "common.fullname" . }}
+{{ include "common.service" . }}
+---
+{{ include "common.headlessService" . }}
diff --git a/kubernetes/common/mariadb-galera/templates/servicemonitor.yaml b/kubernetes/common/mariadb-galera/templates/servicemonitor.yaml
new file mode 100644
index 0000000000..6c3b41f5a5
--- /dev/null
+++ b/kubernetes/common/mariadb-galera/templates/servicemonitor.yaml
@@ -0,0 +1,51 @@
+{{/*
+# 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 default false (and .Values.global.metrics.enabled .Values.global.metrics.custom_resources) }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ template "common.fullname" . }}
+  {{- if .Values.metrics.serviceMonitor.namespace }}
+  namespace: {{ .Values.metrics.serviceMonitor.namespace }}
+  {{- else }}
+  namespace: {{ include "common.namespace" . }}
+  {{- end }}
+  labels: {{- include "common.labels" . | nindent 4 }}
+    {{- range $key, $value := .Values.metrics.serviceMonitor.selector }}
+    {{ $key }}: {{ $value | quote }}
+    {{- end }}
+spec:
+  selector:
+    matchLabels: {{- include "common.matchLabels" . | nindent 6 }}
+  endpoints:
+    - port: metrics
+      {{- if .Values.metrics.serviceMonitor.interval }}
+      interval: {{ .Values.metrics.serviceMonitor.interval }}
+      {{- end }}
+      {{- if .Values.metrics.serviceMonitor.scrapeTimeout }}
+      scrapeTimeout: {{ .Values.metrics.serviceMonitor.scrapeTimeout }}
+      {{- end }}
+      {{- if .Values.metrics.serviceMonitor.relabelings }}
+      relabelings: {{- include "common.tplValue" ( dict "value" .Values.metrics.serviceMonitor.relabelings "context" $) | nindent 8 }}
+      {{- end }}
+      {{- if .Values.metrics.serviceMonitor.metricRelabelings }}
+      metricRelabelings: {{- include "common.tplValue" ( dict "value" .Values.metrics.serviceMonitor.metricRelabelings "context" $) | nindent 8 }}
+      {{- end }}
+  namespaceSelector:
+    matchNames:
+      - {{ .Release.Namespace }}
+{{- end }}
diff --git a/kubernetes/common/mariadb-galera/templates/statefulset.yaml b/kubernetes/common/mariadb-galera/templates/statefulset.yaml
index eb21fe3182..0dcb8e3e1c 100644
--- a/kubernetes/common/mariadb-galera/templates/statefulset.yaml
+++ b/kubernetes/common/mariadb-galera/templates/statefulset.yaml
@@ -1,5 +1,8 @@
 {{/*
-# Copyright © 2019 Amdocs, Bell Canada, Orange, Samsung Electronics
+# Copyright © 2018 Amdocs, Bell Canada
+# Copyright © 2019 Samsung Electronics
+# Copyright © 2019-2020 Orange
+# Copyright © 2020 Bitnami
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -16,128 +19,223 @@
 
 apiVersion: apps/v1
 kind: StatefulSet
-metadata:
-  name: {{ include "common.fullname" . }}
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.fullname" . }}
-    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
-    release: "{{ include "common.release" . }}"
-    heritage: "{{ .Release.Service }}"
+metadata: {{- include "common.resourceMetadata" . | nindent 2 }}
 spec:
-  serviceName: {{ .Values.service.name }}
+  podManagementPolicy: {{ .Values.podManagementPolicy }}
   replicas: {{ .Values.replicaCount }}
-  selector:
-    matchLabels:
-      app: {{ include "common.fullname" . }}
+  selector: {{- include "common.selectors" . | nindent 4 }}
+  serviceName: {{ include "common.servicename" . }}-headless
+  updateStrategy:
+    type: {{ .Values.updateStrategy.type }}
+    {{- if (eq "Recreate" .Values.updateStrategy.type) }}
+    rollingUpdate: null
+    {{- end }}
   template:
-    metadata:
-      labels:
-        app: {{ include "common.fullname" . }}
-        chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
-        release: "{{ include "common.release" . }}"
-        heritage: "{{ .Release.Service }}"
-      annotations:
-        pod.alpha.kubernetes.io/initialized: "true"
+    metadata: {{- include "common.templateMetadata" . | nindent 6 }}
     spec:
-    {{- if .Values.nodeSelector }}
-      nodeSelector:
-{{ toYaml .Values.nodeSelector | indent 8 }}
-    {{- end }}
-      volumes:
-      {{- if .Values.externalConfig }}
-        - name: config
-          configMap:
-            name: {{ include "common.fullname" . }}-external-config
-      {{- end}}
-        - name: init-script
-          configMap:
-            name: {{ include "common.fullname" . }}
-            defaultMode: 0755
-        - name: localtime
-          hostPath:
-            path: /etc/localtime
-      imagePullSecrets:
-      - name: {{ include "common.namespace" . }}-docker-registry-key
+      {{ include "common.podSecurityContext" . | indent 6  | trim }}
+      initContainers:
+        # we shouldn't need this but for unknown reason, it's fsGroup is not
+        # applied
+        - name: fix-permission
+          command:
+            - /bin/sh
+          args:
+            - -c
+            - |
+              chown -R {{ .Values.securityContext.user_id }}:{{ .Values.securityContext.group_id }} /data
+              chown -R {{ .Values.securityContext.user_id }}:{{ .Values.securityContext.group_id }} /bootstrap/
+              chown -R {{ .Values.securityContext.user_id }}:{{ .Values.securityContext.group_id }} /tmp/
+              {{- if .Values.mariadbConfiguration }}
+              cp /config/my.cnf /actual/my.cnf
+              chown -R {{ .Values.securityContext.user_id }}:{{ .Values.securityContext.group_id }} /actual
+              {{- end }}
+          image: {{ include "repositoryGenerator.image.busybox" . }}
+          imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
+          securityContext:
+            runAsUser: 0
+          volumeMounts:
+            - name: previous-boot
+              mountPath: /bootstrap
+            - name: mariadb-tmp-folder
+              mountPath: /tmp
+            - name: {{ include "common.fullname" . }}
+              mountPath: /data
+            {{- if .Values.mariadbConfiguration }}
+            - name: mariadb-galera-starting-config
+              mountPath: /config/my.cnf
+              subPath: my.cnf
+            - name: mariadb-galera-actual-config
+              mountPath: /actual
+            {{- end }}
       containers:
         - name: {{ include "common.name" . }}
           image: {{ include "repositoryGenerator.dockerHubRepository" . }}/{{ .Values.image }}
           imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy | quote}}
+          command:
+            - bash
+            - -ec
+            - |
+                {{- if (not (empty (.Values.galera.bootstrap.bootstrapFromNode | quote)))}}
+                {{- $fullname := include "common.names.fullname" . }}
+                {{- $bootstrapFromNode := int .Values.galera.bootstrap.bootstrapFromNode }}
+                # Bootstrap from the indicated node
+                NODE_ID="${MY_POD_NAME#"{{ $fullname }}-"}"
+                if [[ "$NODE_ID" -eq "{{ $bootstrapFromNode }}" ]]; then
+                    export MARIADB_GALERA_CLUSTER_BOOTSTRAP=yes
+                    export MARIADB_GALERA_FORCE_SAFETOBOOTSTRAP={{ ternary "yes" "no" .Values.galera.bootstrap.forceSafeToBootstrap }}
+                fi
+                {{- end }}
+                exec /opt/bitnami/scripts/mariadb-galera/entrypoint.sh /opt/bitnami/scripts/mariadb-galera/run.sh
           env:
-            - name: POD_NAMESPACE
+            - name: MY_POD_NAME
               valueFrom:
                 fieldRef:
-                  apiVersion: v1
-                  fieldPath: metadata.namespace
-            - name: MYSQL_USER
-              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.userCredentialsUID" .) "key" "login") | indent 14}}
-            - name: MYSQL_PASSWORD
-              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.userCredentialsUID" .) "key" "password") | indent 14}}
-            - name: MYSQL_DATABASE
-              value: {{ default "" .Values.config.mysqlDatabase | quote }}
-            - name: MYSQL_ROOT_PASSWORD
-              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.rootPassUID" .) "key" "password") | indent 14}}
-          ports:
-          - containerPort: {{ .Values.service.internalPort }}
-            name: {{ .Values.service.portName }}
-          - containerPort: {{ .Values.service.sstPort }}
-            name: {{ .Values.service.sstPortName }}
-          - containerPort: {{ .Values.service.replicationPort }}
-            name: {{ .Values.service.replicationName }}
-          - containerPort: {{ .Values.service.istPort }}
-            name: {{ .Values.service.istPortName }}
+                  fieldPath: metadata.name
+            - name: BITNAMI_DEBUG
+              value: {{ ternary "true" "false" .Values.debug | quote }}
+            - name: DB_INIT_SLEEP_TIME
+              value: {{ .Values.init_sleep_time | quote }}
+            - name: MARIADB_GALERA_CLUSTER_NAME
+              value: {{ .Values.galera.name | quote }}
+            - name: MARIADB_GALERA_CLUSTER_ADDRESS
+              value: "gcomm://{{ template "common.name" . }}-headless.{{ include "common.namespace" . }}.svc.{{ .Values.global.clusterDomain }}"
+            - name: MARIADB_ROOT_USER
+              value: {{ .Values.rootUser.user | quote }}
+            - name: MARIADB_ROOT_PASSWORD
+              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.rootPassUID" .) "key" "password") | indent 14 }}
+            - name: MARIADB_USER
+              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.userCredentialsUID" .) "key" "login") | indent 14 }}
+            - name: MARIADB_PASSWORD
+              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.userCredentialsUID" .) "key" "password") | indent 14 }}
+            - name: MARIADB_DATABASE
+              value: {{ .Values.db.name | quote }}
+            - name: MARIADB_GALERA_MARIABACKUP_USER
+              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.backupCredentialsUID" .) "key" "login") | indent 14 }}
+            - name: MARIADB_GALERA_MARIABACKUP_PASSWORD
+              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.backupCredentialsUID" .) "key" "password") | indent 14 }}
+            {{- if .Values.extraFlags }}
+            - name: MARIADB_EXTRA_FLAGS
+              value: {{ .Values.extraFlags | quote }}
+            {{- end }}
+          ports: {{ include "common.containerPorts" . | nindent 12  }}
+          {{- if .Values.livenessProbe.enabled }}
+          livenessProbe:
+            exec:
+              command:
+                - bash
+                - -ec
+                - |
+                  exec mysqladmin status -u$MARIADB_ROOT_USER -p$MARIADB_ROOT_PASSWORD
+            initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
+            timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
+            successThreshold: {{ .Values.livenessProbe.successThreshold }}
+            failureThreshold: {{ .Values.livenessProbe.failureThreshold }}
+          {{- end }}
+          {{- if .Values.readinessProbe.enabled }}
           readinessProbe:
             exec:
               command:
-              - /usr/share/container-scripts/mysql/readiness-probe.sh
-            initialDelaySeconds: {{ .Values.readiness.initialDelaySeconds }}
-            periodSeconds: {{ .Values.readiness.periodSeconds }}
-            timeoutSeconds: {{ .Values.readiness.timeoutSeconds }}
-      {{- if eq .Values.liveness.enabled true }}
+                - bash
+                - -ec
+                - |
+                  exec mysqladmin status -u$MARIADB_ROOT_USER -p$MARIADB_ROOT_PASSWORD
+            initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
+            timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
+            successThreshold: {{ .Values.readinessProbe.successThreshold }}
+            failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
+          {{- end }}
+          resources: {{ include "common.resources" . | nindent 12 }}
+          volumeMounts:
+            - name: previous-boot
+              mountPath: /opt/bitnami/mariadb/.bootstrap
+            - name: {{ include "common.fullname" . }}
+              mountPath: /bitnami/mariadb
+            - name: mariadb-tmp-folder
+              mountPath: /opt/bitnami/mariadb/tmp
+            {{- if .Values.mariadbConfiguration }}
+            - name: mariadb-galera-actual-config
+              mountPath: /opt/bitnami/mariadb/conf
+            {{- end }}
+        {{- if default false .Values.global.metrics.enabled }}
+        - name: {{ include "common.name" . }}-metrics
+          image: {{ include "repositoryGenerator.dockerHubRepository" . }}/{{ .Values.metrics.image }}
+          imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.metrics.pullPolicy | quote}}
+          env:
+            - name: MARIADB_METRICS_EXTRA_FLAGS
+              value: {{ default "" (join " " .Values.metrics.extraFlags) | quote }}
+            - name: MARIADB_ROOT_USER
+              value: {{ .Values.rootUser.user | quote }}
+            - name: MARIADB_ROOT_PASSWORD
+              {{- include "common.secret.envFromSecretFast" (dict "global" . "uid" (include "common.mariadb.secret.rootPassUID" .) "key" "password") | indent 14}}
+          command:
+            - sh
+            - -c
+            - |
+              DATA_SOURCE_NAME="$MARIADB_ROOT_USER:$MARIADB_ROOT_PASSWORD@(localhost:3306)/" /bin/mysqld_exporter $MARIADB_METRICS_EXTRA_FLAGS
+          ports:
+            - name: metrics
+              containerPort: 9104
           livenessProbe:
-            exec:
-              command: ["mysqladmin", "ping"]
-            initialDelaySeconds: {{ .Values.liveness.initialDelaySeconds }}
-            periodSeconds: {{ .Values.liveness.periodSeconds }}
-            timeoutSeconds: {{ .Values.liveness.timeoutSeconds }}
+            httpGet:
+              path: /metrics
+              port: metrics
+            initialDelaySeconds: 30
+            timeoutSeconds: 5
+          readinessProbe:
+            httpGet:
+              path: /metrics
+              port: metrics
+            initialDelaySeconds: 5
+            timeoutSeconds: 1
+          {{ include "common.containerSecurityContext" . | indent 10 | trim }}
+          resources: {{- toYaml .Values.metrics.resources | nindent 12 }}
+        {{- end }}
+      imagePullSecrets:
+        - name: {{ include "common.namespace" . }}-docker-registry-key
+      {{- if .Values.schedulerName }}
+      schedulerName: {{ .Values.schedulerName | quote }}
       {{- end }}
-          resources:
-{{ include "common.resources" . | indent 12 }}
-          volumeMounts:
-        {{- if .Values.externalConfig }}
-          - mountPath: /etc/config
-            name: config
-        {{- end}}
-          - mountPath: /etc/localtime
-            name: localtime
-            readOnly: true
-          - mountPath: /usr/share/container-scripts/mysql/configure-mysql.sh
-            subPath: configure-mysql.sh
-            name: init-script
-{{- if .Values.persistence.enabled }}
-          - mountPath: /var/lib/mysql
-            name: {{ include "common.fullname" . }}-data
-      initContainers:
-        - name: {{ include "common.name" . }}-prepare
-          image: {{ include "repositoryGenerator.image.busybox" . }}
-          imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy | quote}}
-          command: ["sh", "-c", "chown -R 27:27 /var/lib/mysql"]
-          volumeMounts:
-            - name: {{ include "common.fullname" . }}-data
-              mountPath: /var/lib/mysql
+      {{- if .Values.priorityClassName }}
+      priorityClassName: {{ .Values.priorityClassName }}
+      {{- end }}
+      serviceAccountName: {{ include "common.fullname" (dict "suffix" "read" "dot" . )}}
+      {{- if .Values.affinity }}
+      affinity: {{- include "common.tplvalues" ( dict "value" .Values.affinity "context" $) | nindent 8 }}
+      {{- else }}
+      affinity:
+        podAffinity: {{- include "common.affinities.pods" (dict "type" .Values.podAffinityPreset "context" $) | nindent 10 }}
+        podAntiAffinity: {{- include "common.affinities.pods" (dict "type" .Values.podAntiAffinityPreset "context" $) | nindent 10 }}
+        nodeAffinity: {{- include "common.affinities.nodes" (dict "type" .Values.nodeAffinityPreset.type "key" .Values.nodeAffinityPreset.key "values" .Values.nodeAffinityPreset.values) | nindent 10 }}
+      {{- end }}
+      {{- if .Values.nodeSelector }}
+      nodeSelector: {{- include "common.tplvalues" ( dict "value" .Values.nodeSelector "context" $) | nindent 8 }}
+      {{- end }}
+      {{- if .Values.tolerations }}
+      tolerations: {{- include "common.tplvalues" (dict "value" .Values.tolerations "context" .) | nindent 8 }}
+      {{- end }}
+      volumes:
+        - name: previous-boot
+          emptyDir: {}
+        - name: mariadb-tmp-folder
+          emptyDir: {}
+        {{- if .Values.mariadbConfiguration  }}
+        - name:  mariadb-galera-actual-config
+          emptyDir: {}
+        - name: mariadb-galera-starting-config
+          configMap:
+            name: {{ printf "%s-configuration" (include "common.fullname" .) }}
+        {{- end }}
+{{- if and .Values.persistence.enabled .Values.persistence.existingClaim }}
+        - name: {{ include "common.fullname" . }}
+          persistentVolumeClaim:
+            claimName: {{ .Values.persistence.existingClaim }}
+{{- else if not .Values.persistence.enabled }}
+        - name: {{ include "common.fullname" . }}
+          emptyDir: {}
+{{- else if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
   volumeClaimTemplates:
-  - metadata:
-      name: {{ include "common.fullname" . }}-data
-      labels:
-        name: {{ include "common.fullname" . }}
-        chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
-        release: "{{ include "common.release" . }}"
-        heritage: "{{ .Release.Service }}"
-    spec:
-      accessModes:
-      - {{ .Values.persistence.accessMode | quote }}
-      storageClassName: {{ include "common.storageClass" . }}
-      resources:
-        requests:
-          storage: {{ .Values.persistence.size | quote }}
+    - {{ include "common.PVCTemplate" (dict "dot" . "suffix" "data" "persistenceInfos" .Values.persistence) | indent 6 | trim }}
 {{- end }}