[COMMON] add pre upgrade script for mariadb-galera
When upgrading from a version to another, it may be impossible to do it
"simply" because of changes in immutable properties of statefulsets. We
change that here by creating a temporary deployment which will hold the
whole databases during the time the old statefulset gets destroyed and
the new one gets created.
Issue-ID: OOM-2316
Signed-off-by: tringuyen <tri.nguyen@tatacommunications.com>
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I318d72830d5002f50597e23e0753e292f8b47c53
diff --git a/kubernetes/common/mariadb-galera/templates/job.yaml b/kubernetes/common/mariadb-galera/templates/job.yaml
new file mode 100644
index 0000000..cc71bb8
--- /dev/null
+++ b/kubernetes/common/mariadb-galera/templates/job.yaml
@@ -0,0 +1,107 @@
+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: {{ .Values.global.kubectlImage}}
+ 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: "{{ .Values.global.readinessRepository }}/{{ .Values.global.readinessImage }}"
+ name: mariadb-galera-upgrade-readiness
+ env:
+ - name: NAMESPACE
+ valueFrom:
+ fieldRef:
+ apiVersion: v1
+ fieldPath: metadata.namespace
+ command:
+ - /root/ready.py
+ args:
+ - --container-name
+ - mariadb-galera
+ containers:
+ - name: mariadb-job-post-upgrade
+ image: {{ .Values.global.kubectlImage}}
+ imagePullPolicy: IfNotPresent
+ env:
+ - name: NAMESPACE_ENV
+ valueFrom:
+ fieldRef:
+ apiVersion: v1
+ fieldPath: metadata.namespace
+ 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: {{ .Values.global.kubectlImage}}
+ 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