openstack-helm/mariadb/templates/statefulset.yaml

{{/*
Copyright 2017 The Openstack-Helm Authors.

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.manifests.statefulset }}
{{- $envAll := . }}
{{- $dependencies := .Values.dependencies.static.mariadb }}

{{- $serviceAccountName := "mariadb" }}
{{ tuple $envAll $dependencies $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
---
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  # NOTE(portdirect): the statefulset name must match the POD_NAME_PREFIX env var for discovery to work
  name: {{ tuple "oslo_db" "direct" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
spec:
  serviceName: "{{ tuple "oslo_db" "discovery" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}"
  podManagementPolicy: "Parallel"
  replicas: {{ .Values.pod.replicas.server }}
  template:
    metadata:
      labels:
{{ tuple $envAll "mariadb" "server" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
    spec:
      serviceAccountName: {{ $serviceAccountName }}
      affinity:
{{ tuple $envAll "mariadb" "server" | include "helm-toolkit.snippets.kubernetes_pod_anti_affinity" | indent 8 }}
      nodeSelector:
        {{ .Values.labels.server.node_selector_key }}: {{ .Values.labels.server.node_selector_value }}
      initContainers:
{{ tuple $envAll $dependencies list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
{{- if .Values.volume.chown_on_start }}
        - name: mariadb-perms
          image: {{ .Values.images.tags.mariadb }}
          imagePullPolicy: {{ .Values.images.pull_policy }}
          securityContext:
            runAsUser: 0
{{ tuple $envAll $envAll.Values.pod.resources.server | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
          command:
            - chown
            - -R
            - "mysql:mysql"
            - /var/lib/mysql
          volumeMounts:
            - name: mysql-data
              mountPath: /var/lib/mysql
{{- end }}
      containers:
        - name: mariadb
          image: {{ .Values.images.tags.mariadb }}
          imagePullPolicy: {{ .Values.images.pull_policy }}
{{ tuple $envAll $envAll.Values.pod.resources.server | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
          env:
            - name: POD_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: FORCE_BOOTSTRAP
              value: {{ .Values.force_bootstrap | quote }}
            - name: FORCE_RECOVERY
              value: {{ .Values.force_recovey | quote }}
            - name: BOOTSTRAP_FILE
              value: {{ printf "/tmp/%s.sql" (randAlphaNum 8) }}
            - name: MARIADB_REPLICAS
              value: {{ .Values.pod.replicas.server | quote }}
            - name: WSREP_PORT
              value: {{ tuple "oslo_db" "direct" "wsrep" . | include "helm-toolkit.endpoints.endpoint_port_lookup" | quote }}
            - name: POD_NAME_PREFIX
              value: {{ tuple "oslo_db" "direct" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
            - name: MYSQL_ROOT_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: mariadb-db-root-password
                  key: MYSQL_ROOT_PASSWORD
          ports:
            - name: mysql
              protocol: TCP
              containerPort: {{ tuple "oslo_db" "direct" "mysql" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            - name: wsrep
              protocol: TCP
              containerPort: {{ tuple "oslo_db" "direct" "wsrep" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
          command:
            - /tmp/start.sh
          lifecycle:
            preStop:
              exec:
                command:
                  - /tmp/stop.sh
          readinessProbe:
            initialDelaySeconds: 30
            periodSeconds: 30
            timeoutSeconds: 3
            exec:
              command:
                - /tmp/readiness.sh
          volumeMounts:
            - name: mycnfd
              mountPath: /etc/mysql/conf.d
            - name: mariadb-bin
              mountPath: /tmp/start.sh
              subPath: start.sh
              readOnly: true
            - name: mariadb-bin
              mountPath: /tmp/stop.sh
              subPath: stop.sh
              readOnly: true
            - name: mariadb-bin
              mountPath: /tmp/readiness.sh
              subPath: readiness.sh
              readOnly: true
            - name: mariadb-etc
              mountPath: /etc/mysql/my.cnf
              subPath: my.cnf
              readOnly: true
            - name: mariadb-etc
              mountPath: /etc/mysql/conf.d/00-base.cnf
              subPath: 00-base.cnf
              readOnly: true
            - name: mariadb-etc
              mountPath: /etc/mysql/conf.d/20-override.cnf
              subPath: 20-override.cnf
              readOnly: true
            - name: mariadb-etc
              mountPath: /etc/mysql/conf.d/99-force.cnf
              subPath: 99-force.cnf
              readOnly: true
            - name: mariadb-secrets
              mountPath: /etc/mysql/admin_user.cnf
              subPath: admin_user.cnf
              readOnly: true
            - name: mysql-data
              mountPath: /var/lib/mysql
      volumes:
        - name: mycnfd
          emptyDir: {}
        - name: mariadb-bin
          configMap:
            name: mariadb-bin
            defaultMode: 0555
        - name: mariadb-etc
          configMap:
            name: mariadb-etc
            defaultMode: 0444
        - name: mariadb-secrets
          secret:
            secretName: mariadb-secrets
            defaultMode: 0444
        {{- if not .Values.volume.enabled }}
        - name: mysql-data
          emptyDir: {}
        {{- end }}
{{- if .Values.volume.enabled }}
  volumeClaimTemplates:
  - metadata:
      name: mysql-data
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: {{ .Values.volume.size }}
      storageClassName: {{ .Values.volume.class_name }}
{{- end }}
{{- end }}