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path: root/kubernetes/common/cassandra/templates/statefulset.yaml
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# Copyright © 2018 Amdocs, AT&T, Bell Canada
#
# 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.

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: {{ include "common.fullname" . }}
  namespace: {{ include "common.namespace" . }}
  labels:
    app: {{ include "common.name" . }}
    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
spec:
  serviceName: {{ include "common.servicename" . }}
  replicas: {{ .Values.replicaCount }}
  podManagementPolicy: {{ .Values.podManagementPolicy }}
  updateStrategy:
    type: {{ .Values.updateStrategy.type }}
  template:
    metadata:
      labels:
        app: {{ include "common.name" . }}
        release: {{ .Release.Name }}
      name: {{ include "common.name" . }}
    spec:
      containers:
      - name: {{ include "common.name" . }}
        image: {{ .Values.image }}
        imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
        ports:
        - containerPort: {{ .Values.service.internalPort }}
        - containerPort: {{ .Values.service.internalPort2 }}
        - containerPort: {{ .Values.service.internalPort3 }}
        - containerPort: {{ .Values.service.internalPort4 }}
        - containerPort: {{ .Values.service.internalPort5 }}
        volumeMounts:
          - name: {{ .Values.service.name }}
            mountPath: /var/lib/cassandra
          {{ if eq .Values.configmapping true }}
          - name: {{ .Values.service.name }}-docker-entry-initd
            mountPath: /{{ .Values.service.name }}-docker-entrypoint-initdb.d/cassandra.cql
            subPath: cassandra.cql
          {{ end }}
        {{- if eq .Values.liveness.enabled true }}
        livenessProbe:
          exec:
           command:
            - /bin/bash
            - -c
            - nodetool status | grep $POD_IP | awk '$1!="UN" { exit 1; }'
          initialDelaySeconds: {{ .Values.liveness.initialDelaySeconds }}
          periodSeconds: {{ .Values.liveness.periodSeconds }}
        {{ end -}}
        readinessProbe:
          exec:
            command:
            - /bin/bash
            - -c
            - nodetool status | grep $POD_IP | awk '$1!="UN" { exit 1; }'
          initialDelaySeconds: {{ .Values.readiness.initialDelaySeconds }}
          timeoutSeconds: {{ .Values.liveness.periodSeconds }}
        env:
        {{- $seed_size := default 1 .Values.replicaCount | int -}}
        {{- $global := . }}
          - name: MAX_HEAP_SIZE
            value: {{ .Values.config.heap.max }}
          - name: HEAP_NEWSIZE
            value: {{ .Values.config.heap.min }}
          - name: JVM_OPTS
            value: {{ .Values.config.jvmOpts | quote }}
          - name: CASSANDRA_CLUSTER_NAME
            value: {{ .Values.config.clusterName | quote }}
          - name: CASSANDRA_DC
            value: {{ .Values.config.dataCenter | quote }}
          - name: CASSANDRA_RACK
            value: {{ .Values.config.rackName | quote }}
          - name: CASSANDRA_AUTO_BOOTSTRAP
            value: {{ .Values.config.autoBootstrap | quote }}
          - name: POD_IP
            valueFrom:
              fieldRef:
                fieldPath: status.podIP
        {{ if eq .Values.configmapping true }}
        lifecycle:
          postStart:
            exec:
              command:
              - /bin/sh
              - -c
              - >
                /bin/sleep {{ .Values.readiness.initialDelaySeconds }};
                cd /{{ .Values.service.name }}-docker-entrypoint-initdb.d;
                cqlsh -u root -p root -f cassandra.cql
        {{ end }}
        resources:
{{ toYaml .Values.resources | indent 10 }}
      {{- if .Values.nodeSelector }}
      nodeSelector:
{{ toYaml .Values.nodeSelector | indent 8 }}
      {{- end -}}
      {{- if .Values.affinity }}
      affinity:
{{ toYaml .Values.affinity | indent 8 }}
      {{- end }}
      volumes:
      - name: localtime
        hostPath:
          path: /etc/localtime
      {{ if eq .Values.configmapping true }}
      - name: {{ .Values.service.name }}-docker-entry-initd
        configMap:
          name: {{ .Values.service.name }}-docker-entry-initd
      {{ end }}
  {{- if not .Values.persistence.enabled }}
      - name: {{ .Values.service.name }}
        emptyDir: {}
  {{- else }}
  volumeClaimTemplates:
    - metadata:
        name: {{ .Values.service.name }}
        labels:
          app: {{ template "common.fullname" . }}
          chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
          release: "{{ .Release.Name }}"
          heritage: "{{ .Release.Service }}"
      annotations:
        volume.beta.kubernetes.io/storage-class: {{ .Values.persistence.storageClass }}
      spec:
        accessModes:
          - {{ .Values.persistence.accessMode | quote }}
        resources:
          requests:
            storage: {{ .Values.persistence.size | quote }}
        selector:
          matchLabels:
            release: "{{ .Release.Name }}"
  {{- end }}