# helm_charts_redis-slave-statefulset.yaml
{{- if .Values.cluster.enabled }}
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ template "redis.fullname" . }}-slave
  labels:
    app: {{ template "redis.name" . }}
    chart: {{ template "redis.chart" . }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
spec:
{{- if .Values.slave.updateStrategy }}
  strategy:
{{ toYaml .Values.slave.updateStrategy | indent 4 }}
{{- end }}
  replicas: {{ .Values.cluster.slaveCount }}
  serviceName: {{ template "redis.fullname" . }}-headless
  selector:
    matchLabels:
      app: {{ template "redis.name" . }}
      release: {{ .Release.Name }}
      role: slave
  template:
    metadata:
      labels:
        app: {{ template "redis.name" . }}
        release: {{ .Release.Name }}
        chart: {{ template "redis.chart" . }}
        role: slave
      {{- if .Values.slave.podLabels }}
{{ toYaml .Values.slave.podLabels | indent 8 }}
      {{- end }}
      {{- if and .Values.metrics.enabled .Values.metrics.podLabels }}
{{ toYaml .Values.metrics.podLabels | indent 8 }}
      {{- end }}
      annotations:
        checksum/health: {{ include (print $.Template.BasePath "/health-configmap.yaml") . | sha256sum }}
        checksum/configmap: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
        checksum/secret: {{ include (print $.Template.BasePath "/secret.yaml") . | sha256sum }}
      {{- if .Values.slave.podAnnotations }}
{{ toYaml .Values.slave.podAnnotations | indent 8 }}
      {{- end }}
      {{- if and .Values.metrics.enabled .Values.metrics.podAnnotations }}
{{ toYaml .Values.metrics.podAnnotations | indent 8 }}
      {{- end }}
    spec:
{{- include "redis.imagePullSecrets" . | indent 6 }}
      {{- if .Values.securityContext.enabled }}
      securityContext:
        fsGroup: {{ .Values.securityContext.fsGroup }}
        {{- if .Values.securityContext.sysctls }}
        sysctls:
{{ toYaml .Values.securityContext.sysctls | indent 8 }}
        {{- end }}
      {{- end }}
      serviceAccountName: "{{ template "redis.serviceAccountName" . }}"
      {{- if .Values.slave.priorityClassName }}
      priorityClassName: "{{ .Values.slave.priorityClassName }}"
      {{- end }}
      {{- if .Values.slave.nodeSelector }}
      nodeSelector:
{{ toYaml .Values.slave.nodeSelector | indent 8 }}
      {{- end }}
      {{- if .Values.slave.tolerations }}
      tolerations:
{{ toYaml .Values.slave.tolerations | indent 8 }}
      {{- end }}
      {{- if .Values.slave.schedulerName }}
      schedulerName: "{{ .Values.slave.schedulerName }}"
      {{- end }}
    {{- with .Values.slave.affinity }}
      affinity:
{{ tpl (toYaml .) $ | indent 8 }}
    {{- end }}
      containers:
      - name: {{ template "redis.fullname" . }}
        image: {{ template "redis.image" . }}
        imagePullPolicy: {{ .Values.image.pullPolicy | quote }}
        {{- if .Values.securityContext.enabled }}
        securityContext:
          runAsUser: {{ .Values.securityContext.runAsUser }}
        {{- end }}
        command:
        - /bin/bash
        - -c
        - |
          {{- if (eq (.Values.securityContext.runAsUser | int) 0) }}
          useradd redis
          chown -R redis {{ .Values.slave.persistence.path }}
          {{- end }}
          if [[ -n $REDIS_PASSWORD_FILE ]]; then
            password_aux=`cat ${REDIS_PASSWORD_FILE}`
            export REDIS_PASSWORD=$password_aux
          fi
          if [[ -n $REDIS_MASTER_PASSWORD_FILE ]]; then
            password_aux=`cat ${REDIS_MASTER_PASSWORD_FILE}`
            export REDIS_MASTER_PASSWORD=$password_aux
          fi
          if [[ ! -f /opt/bitnami/redis/etc/replica.conf ]];then
            cp /opt/bitnami/redis/mounted-etc/replica.conf /opt/bitnami/redis/etc/replica.conf
          fi
          if [[ ! -f /opt/bitnami/redis/etc/redis.conf ]];then
            cp /opt/bitnami/redis/mounted-etc/redis.conf /opt/bitnami/redis/etc/redis.conf
          fi
          ARGS=("--port" "${REDIS_PORT}")
          ARGS+=("--slaveof" "${REDIS_MASTER_HOST}" "${REDIS_MASTER_PORT_NUMBER}")
          {{- if .Values.usePassword }}
          ARGS+=("--requirepass" "${REDIS_PASSWORD}")
          ARGS+=("--masterauth" "${REDIS_MASTER_PASSWORD}")
          {{- else }}
          ARGS+=("--protected-mode" "no")
          {{- end }}
          ARGS+=("--include" "/opt/bitnami/redis/etc/redis.conf")
          ARGS+=("--include" "/opt/bitnami/redis/etc/replica.conf")
          {{- if .Values.slave.extraFlags }}
          {{- range .Values.slave.extraFlags }}
          ARGS+=({{ . | quote }})
          {{- end }}
          {{- end }}
          {{- if .Values.slave.command }}
          {{ .Values.slave.command }} "${ARGS[@]}"
          {{- else }}
          redis-server "${ARGS[@]}"
          {{- end }}
        env:
        - name: REDIS_REPLICATION_MODE
          value: slave
        - name: REDIS_MASTER_HOST
          value: {{ template "redis.fullname" . }}-master-0.{{ template "redis.fullname" . }}-headless.{{ .Release.Namespace }}.svc.{{ .Values.clusterDomain }}
        - name: REDIS_PORT
          value: {{ .Values.redisPort | quote }}
        - name: REDIS_MASTER_PORT_NUMBER
          value: {{ .Values.redisPort | quote }}
        {{- if .Values.usePassword }}
        {{- if .Values.usePasswordFile }}
        - name: REDIS_PASSWORD_FILE
          value: "/opt/bitnami/redis/secrets/redis-password"
        - name: REDIS_MASTER_PASSWORD_FILE
          value: "/opt/bitnami/redis/secrets/redis-password"
        {{- else }}
        - name: REDIS_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ template "redis.secretName" . }}
              key: {{ template "redis.secretPasswordKey" . }}
        - name: REDIS_MASTER_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ template "redis.secretName" . }}
              key: {{ template "redis.secretPasswordKey" . }}
        {{- end }}
        {{- else }}
        - name: ALLOW_EMPTY_PASSWORD
          value: "yes"
        {{- end }}
        ports:
        - name: redis
          containerPort: {{ .Values.redisPort }}
        {{- if .Values.slave.livenessProbe.enabled }}
        livenessProbe:
          initialDelaySeconds: {{ .Values.slave.livenessProbe.initialDelaySeconds }}
          periodSeconds: {{ .Values.slave.livenessProbe.periodSeconds }}
          timeoutSeconds: {{ .Values.slave.livenessProbe.timeoutSeconds }}
          successThreshold: {{ .Values.slave.livenessProbe.successThreshold }}
          failureThreshold: {{ .Values.slave.livenessProbe.failureThreshold}}
          exec:
            command:
            - sh
            - -c
            {{- if .Values.sentinel.enabled }}
            - /health/ping_liveness_local.sh {{ .Values.slave.livenessProbe.timeoutSeconds }}
            {{- else }}
            - /health/ping_liveness_local_and_master.sh {{ .Values.slave.livenessProbe.timeoutSeconds }}
            {{- end }}
        {{- end }}

        {{- if .Values.slave.readinessProbe.enabled }}
        readinessProbe:
          initialDelaySeconds: {{ .Values.slave.readinessProbe.initialDelaySeconds }}
          periodSeconds: {{ .Values.slave.readinessProbe.periodSeconds }}
          timeoutSeconds: {{ .Values.slave.readinessProbe.timeoutSeconds }}
          successThreshold: {{ .Values.slave.readinessProbe.successThreshold }}
          failureThreshold: {{ .Values.slave.readinessProbe.failureThreshold }}
          exec:
            command:
            - sh
            - -c
            {{- if .Values.sentinel.enabled }}
            - /health/ping_readiness_local.sh {{ .Values.slave.livenessProbe.timeoutSeconds }}
            {{- else }}
            - /health/ping_readiness_local_and_master.sh {{ .Values.slave.livenessProbe.timeoutSeconds }}
            {{- end }}
        {{- end }}
        resources:
{{ toYaml .Values.slave.resources | indent 10 }}
        volumeMounts:
        - name: health
          mountPath: /health
        {{- if .Values.usePasswordFile }}
        - name: redis-password
          mountPath: /opt/bitnami/redis/secrets/
        {{- end }}
        - name: redis-data
          mountPath: /data
        - name: config
          mountPath: /opt/bitnami/redis/mounted-etc
        - name: redis-tmp-conf
          mountPath: /opt/bitnami/redis/etc
      {{- if and .Values.cluster.enabled .Values.sentinel.enabled }}
      - name: sentinel
        image: "{{ template "sentinel.image" . }}"
        imagePullPolicy: {{ .Values.sentinel.image.pullPolicy | quote }}
        {{- if .Values.securityContext.enabled }}
        securityContext:
          runAsUser: {{ .Values.securityContext.runAsUser }}
        {{- end }}
        command:
        - /bin/bash
        - -c
        - |
          if [[ -n $REDIS_PASSWORD_FILE ]]; then
            password_aux=`cat ${REDIS_PASSWORD_FILE}`
            export REDIS_PASSWORD=$password_aux
          fi
          if [[ ! -f /opt/bitnami/redis-sentinel/etc/sentinel.conf ]];then
            cp /opt/bitnami/redis-sentinel/mounted-etc/sentinel.conf /opt/bitnami/redis-sentinel/etc/sentinel.conf
            {{- if .Values.usePassword }}
            printf "\nsentinel auth-pass {{ .Values.sentinel.masterSet }} $REDIS_PASSWORD" >> /opt/bitnami/redis-sentinel/etc/sentinel.conf
            {{- if .Values.sentinel.usePassword }}
            printf "\nrequirepass $REDIS_PASSWORD" >> /opt/bitnami/redis-sentinel/etc/sentinel.conf
            {{- end }}
            {{- end }}
            {{- if .Values.sentinel.staticID }}
            printf "\nsentinel myid $(echo $HOSTNAME | openssl sha1 | awk '{ print $2 }')" >> /opt/bitnami/redis-sentinel/etc/sentinel.conf
            {{- end }}
          fi

          redis-server /opt/bitnami/redis-sentinel/etc/sentinel.conf --sentinel
        env:
        {{- if .Values.usePassword }}
        {{- if .Values.usePasswordFile }}
        - name: REDIS_PASSWORD_FILE
          value: "/opt/bitnami/redis/secrets/redis-password"
        {{- else }}
        - name: REDIS_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ template "redis.secretName" . }}
              key: {{ template "redis.secretPasswordKey" . }}
        {{- end }}
        {{- else }}
        - name: ALLOW_EMPTY_PASSWORD
          value: "yes"
        {{- end }}
        - name: REDIS_SENTINEL_PORT
          value: {{ .Values.sentinel.port | quote }}
        ports:
        - name: redis-sentinel
          containerPort: {{ .Values.sentinel.port }}
        {{- if .Values.sentinel.livenessProbe.enabled }}
        livenessProbe:
          initialDelaySeconds: {{ .Values.sentinel.livenessProbe.initialDelaySeconds }}
          periodSeconds: {{ .Values.sentinel.livenessProbe.periodSeconds }}
          timeoutSeconds: {{ .Values.sentinel.livenessProbe.timeoutSeconds }}
          successThreshold: {{ .Values.sentinel.livenessProbe.successThreshold }}
          failureThreshold: {{ .Values.sentinel.livenessProbe.failureThreshold }}
          exec:
            command:
            - sh
            - -c
            - /health/ping_sentinel.sh {{ .Values.sentinel.livenessProbe.timeoutSeconds }}
        {{- end }}
        {{- if .Values.sentinel.readinessProbe.enabled}}
        readinessProbe:
          initialDelaySeconds: {{ .Values.sentinel.readinessProbe.initialDelaySeconds }}
          periodSeconds: {{ .Values.sentinel.readinessProbe.periodSeconds }}
          timeoutSeconds: {{ .Values.sentinel.readinessProbe.timeoutSeconds }}
          successThreshold: {{ .Values.sentinel.readinessProbe.successThreshold }}
          failureThreshold: {{ .Values.sentinel.readinessProbe.failureThreshold }}
          exec:
            command:
            - sh
            - -c
            - /health/ping_sentinel.sh {{ .Values.sentinel.livenessProbe.timeoutSeconds }}
        {{- end }}
        resources:
{{ toYaml .Values.sentinel.resources | indent 10 }}
        volumeMounts:
        - name: health
          mountPath: /health
        {{- if .Values.usePasswordFile }}
        - name: redis-password
          mountPath: /opt/bitnami/redis/secrets/
        {{- end }}
        - name: redis-data
          mountPath: {{ .Values.master.persistence.path }}
          subPath: {{ .Values.master.persistence.subPath }}
        - name: config
          mountPath: /opt/bitnami/redis-sentinel/mounted-etc
        - name: sentinel-tmp-conf
          mountPath: /opt/bitnami/redis-sentinel/etc
      {{- end }}
{{- if .Values.metrics.enabled }}
      - name: metrics
        image: {{ template "redis.metrics.image" . }}
        imagePullPolicy: {{ .Values.metrics.image.pullPolicy | quote }}
        command:
        - /bin/bash
        - -c
        - |
          if [[ -f '/secrets/redis-password' ]]; then
           export REDIS_PASSWORD=$(cat /secrets/redis-password)
          fi
          redis_exporter{{- range $key, $value := .Values.metrics.extraArgs }} --{{ $key }}={{ $value }}{{- end }}
        env:
        - name: REDIS_ALIAS
          value: {{ template "redis.fullname" . }}
        {{- if and .Values.usePassword (not .Values.usePasswordFile) }}
        - name: REDIS_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ template "redis.secretName" . }}
              key: {{ template "redis.secretPasswordKey" . }}
        {{- end }}
        volumeMounts:
        {{- if .Values.usePasswordFile }}
        - name: redis-password
          mountPath: /secrets/
        {{- end }}
        ports:
        - name: metrics
          containerPort: 9121
        resources:
{{ toYaml .Values.metrics.resources | indent 10 }}
{{- end }}
      {{- $needsVolumePermissions := and .Values.volumePermissions.enabled (and .Values.slave.persistence.enabled .Values.securityContext.enabled) }}
      {{- if or $needsVolumePermissions .Values.sysctlImage.enabled }}
      initContainers:
      {{- if $needsVolumePermissions }}
      - name: volume-permissions
        image: "{{ template "redis.volumePermissions.image" . }}"
        imagePullPolicy: {{ .Values.volumePermissions.image.pullPolicy | quote }}
        command: ["/bin/chown", "-R", "{{ .Values.securityContext.runAsUser }}:{{ .Values.securityContext.fsGroup }}", "{{ .Values.slave.persistence.path }}"]
        securityContext:
          runAsUser: 0
        resources:
{{ toYaml .Values.volumePermissions.resources | indent 10 }}
        volumeMounts:
        - name: redis-data
          mountPath: {{ .Values.slave.persistence.path }}
          subPath: {{ .Values.slave.persistence.subPath }}
      {{- end }}
      {{- if .Values.sysctlImage.enabled }}
      - name: init-sysctl
        image: {{ template "redis.sysctl.image" . }}
        imagePullPolicy: {{ default "" .Values.sysctlImage.pullPolicy | quote }}
        resources:
{{ toYaml .Values.sysctlImage.resources | indent 10 }}
        {{- if .Values.sysctlImage.mountHostSys }}
        volumeMounts:
        - name: host-sys
          mountPath: /host-sys
        {{- end }}
        command:
{{ toYaml .Values.sysctlImage.command | indent 10 }}
        securityContext:
          privileged: true
          runAsUser: 0
      {{- end }}
      {{- end }}
      volumes:
      - name: health
        configMap:
          name: {{ template "redis.fullname" . }}-health
          defaultMode: 0755
      {{- if .Values.usePasswordFile }}
      - name: redis-password
        secret:
          secretName: {{ template "redis.secretName" . }}
          items:
          - key: {{ template "redis.secretPasswordKey" . }}
            path: redis-password
      {{- end }}
      - name: config
        configMap:
          name: {{ template "redis.fullname" . }}
      {{- if .Values.sysctlImage.mountHostSys }}
      - name: host-sys
        hostPath:
          path: /sys
      {{- end }}
      - name: sentinel-tmp-conf
        emptyDir: {}
      - name: redis-tmp-conf
        emptyDir: {}
  {{- if not .Values.slave.persistence.enabled }}
      - name: redis-data
        emptyDir: {}
  {{- else }}
  volumeClaimTemplates:
    - metadata:
        name: redis-data
        labels:
          app: {{ template "redis.name" . }}
          release: {{ .Release.Name }}
          heritage: {{ .Release.Service }}
          component: slave
      spec:
        accessModes:
        {{- range .Values.slave.persistence.accessModes }}
          - {{ . | quote }}
        {{- end }}
        resources:
          requests:
            storage: {{ .Values.slave.persistence.size | quote }}
        {{ include "redis.slave.storageClass" . }}
        selector:
        {{- if .Values.slave.persistence.matchLabels }}
          matchLabels:
{{ toYaml .Values.slave.persistence.matchLabels | indent 12 }}
        {{- end -}}
        {{- if .Values.slave.persistence.matchExpressions }}
          matchExpressions:
{{ toYaml .Values.slave.persistence.matchExpressions | indent 12 }}
        {{- end -}}
  {{- end }}
  updateStrategy:
    type: {{ .Values.slave.statefulset.updateStrategy }}
    {{- if .Values.slave.statefulset.rollingUpdatePartition }}
    {{- if (eq "Recreate" .Values.slave.statefulset.updateStrategy) }}
    rollingUpdate: null
    {{- else }}
    rollingUpdate:
      partition: {{ .Values.slave.statefulset.rollingUpdatePartition }}
    {{- end }}
    {{- end }}
{{- end }}