# Copyright 2022-present Open Networking Foundation
#
# 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 and .Values.global.redis.cluster.enabled (not .Values.global.redis.sentinel.enabled) }}
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ template "redis.fullname" . }}-slave
  namespace: {{ .Release.Namespace | quote }}
  labels:
    app: {{ template "redis.name" . }}
    chart: {{ template "redis.chart" . }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
  {{- if .Values.slave.statefulset.labels }}
  {{- toYaml .Values.slave.statefulset.labels | nindent 4 }}
  {{- end }}
{{- if .Values.slave.statefulset.annotations }}
  annotations:
    {{- toYaml .Values.slave.statefulset.annotations | nindent 4 }}
{{- end }}
spec:
{{- if .Values.slave.updateStrategy }}
  strategy: {{- toYaml .Values.slave.updateStrategy | nindent 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 | nindent 8 }}
      {{- end }}
      {{- if and .Values.metrics.enabled .Values.metrics.podLabels }}
      {{- toYaml .Values.metrics.podLabels | nindent 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 | nindent 8 }}
      {{- end }}
      {{- if and .Values.metrics.enabled .Values.metrics.podAnnotations }}
      {{- toYaml .Values.metrics.podAnnotations | nindent 8 }}
      {{- end }}
    spec:
      {{- include "redis.imagePullSecrets" . | nindent 6 }}
      {{- if .Values.slave.hostAliases }}
      hostAliases: {{- include "common.tplvalues.render" (dict "value" .Values.slave.hostAliases "context" $) | nindent 8 }}
      {{- end }}
      {{- if .Values.securityContext.enabled }}
      securityContext: {{- omit .Values.securityContext "enabled" | toYaml | nindent 8 }}
      {{- end }}
      serviceAccountName: {{ template "redis.serviceAccountName" . }}
      {{- if .Values.slave.priorityClassName }}
      priorityClassName: {{ .Values.slave.priorityClassName | quote }}
      {{- end }}
      {{- if .Values.slave.nodeSelector }}
      nodeSelector: {{- toYaml .Values.slave.nodeSelector | nindent 8 }}
      {{- end }}
      {{- if .Values.slave.tolerations }}
      tolerations: {{- toYaml .Values.slave.tolerations | nindent 8 }}
      {{- end }}
      {{- if .Values.slave.shareProcessNamespace }}
      shareProcessNamespace: {{ .Values.slave.shareProcessNamespace }}
      {{- end }}
      {{- if .Values.slave.schedulerName }}
      schedulerName: {{ .Values.slave.schedulerName }}
      {{- end }}
      {{- if .Values.master.spreadConstraints }}
      topologySpreadConstraints: {{- toYaml .Values.master.spreadConstraints | nindent 8 }}
      {{- end }}
      {{- with .Values.slave.affinity }}
      affinity: {{- tpl (toYaml .) $ | nindent 8 }}
      {{- end }}
      containers:
        - name: {{ template "redis.name" . }}
          image: {{ template "redis.image" . }}
          imagePullPolicy: {{ .Values.image.pullPolicy | quote }}
          {{- if .Values.containerSecurityContext.enabled }}
          securityContext: {{- omit .Values.containerSecurityContext "enabled" | toYaml | nindent 12 }}
          {{- end }}
          command:
            - /bin/bash
            - -c
            - /opt/bitnami/scripts/start-scripts/start-slave.sh
          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_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 }}
            - name: REDIS_TLS_ENABLED
              value: {{ ternary "yes" "no" .Values.tls.enabled | quote }}
            {{- if .Values.tls.enabled }}
            - name: REDIS_TLS_PORT
              value: {{ .Values.redisPort | quote }}
            - name:  REDIS_TLS_AUTH_CLIENTS
              value: {{ ternary "yes" "no" .Values.tls.authClients | quote }}
            - name:  REDIS_TLS_CERT_FILE
              value: {{ template "redis.tlsCert" . }}
            - name:  REDIS_TLS_KEY_FILE
              value: {{ template "redis.tlsCertKey" . }}
            - name:  REDIS_TLS_CA_FILE
              value: {{ template "redis.tlsCACert" . }}
            {{- if .Values.tls.dhParamsFilename }}
            - name:  REDIS_TLS_DH_PARAMS_FILE
              value: {{ template "redis.tlsDHParams" . }}
            {{- end }}
            {{- else }}
            - name: REDIS_PORT
              value: {{ .Values.redisPort | quote }}
            {{- end }}
            {{- if .Values.slave.extraEnvVars }}
            {{- include "redis.tplValue" (dict "value" .Values.slave.extraEnvVars "context" $) | nindent 12 }}
            {{- end }}
         {{- if or .Values.slave.extraEnvVarsCM .Values.slave.extraEnvVarsSecret }}
          envFrom:
            {{- if .Values.slave.extraEnvVarsCM }}
            - configMapRef:
                name: {{ .Values.slave.extraEnvVarsCM }}
            {{- end }}
            {{- if .Values.slave.extraEnvVarsSecret }}
            - secretRef:
                name: {{ .Values.slave.extraEnvVarsSecret }}
            {{- end }}
          {{- end }}
          ports:
            - name: redis
              containerPort: {{ .Values.redisPort }}
          {{- if .Values.slave.livenessProbe.enabled }}
          livenessProbe:
            initialDelaySeconds: {{ .Values.slave.livenessProbe.initialDelaySeconds }}
            periodSeconds: {{ .Values.slave.livenessProbe.periodSeconds }}
            timeoutSeconds: {{ add1 .Values.slave.livenessProbe.timeoutSeconds }}
            successThreshold: {{ .Values.slave.livenessProbe.successThreshold }}
            failureThreshold: {{ .Values.slave.livenessProbe.failureThreshold}}
            exec:
              command:
                - sh
                - -c
                - /health/ping_liveness_local_and_master.sh {{ .Values.slave.livenessProbe.timeoutSeconds }}
          {{- else if .Values.slave.customLivenessProbe }}
          livenessProbe: {{- toYaml .Values.slave.customLivenessProbe | nindent 12 }}
          {{- end }}
          {{- if .Values.slave.readinessProbe.enabled }}
          readinessProbe:
            initialDelaySeconds: {{ .Values.slave.readinessProbe.initialDelaySeconds }}
            periodSeconds: {{ .Values.slave.readinessProbe.periodSeconds }}
            timeoutSeconds: {{ add1 .Values.slave.readinessProbe.timeoutSeconds }}
            successThreshold: {{ .Values.slave.readinessProbe.successThreshold }}
            failureThreshold: {{ .Values.slave.readinessProbe.failureThreshold }}
            exec:
              command:
                - sh
                - -c
                - /health/ping_readiness_local_and_master.sh {{ .Values.slave.readinessProbe.timeoutSeconds }}
          {{- else if .Values.slave.customReadinessProbe }}
          readinessProbe: {{- toYaml .Values.slave.customReadinessProbe | nindent 12 }}
          {{- end }}
          resources: {{- toYaml .Values.slave.resources | nindent 12 }}
          volumeMounts:
            - name: start-scripts
              mountPath: /opt/bitnami/scripts/start-scripts
            - 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 .Values.tls.enabled }}
            - name: redis-certificates
              mountPath: /opt/bitnami/redis/certs
              readOnly: true
            {{- end }}
        {{- if .Values.metrics.enabled }}
        - name: metrics
          image: {{ template "redis.metrics.image" . }}
          imagePullPolicy: {{ .Values.metrics.image.pullPolicy | quote }}
          {{- if .Values.containerSecurityContext.enabled }}
          securityContext: {{- omit .Values.containerSecurityContext "enabled" | toYaml | nindent 12 }}
          {{- end }}
          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 }}
            {{- if .Values.tls.enabled }}
            - name: REDIS_ADDR
              value: rediss://localhost:{{ .Values.redisPort }}
            - name: REDIS_EXPORTER_TLS_CLIENT_KEY_FILE
              value: {{ template "redis.tlsCertKey" . }}
            - name: REDIS_EXPORTER_TLS_CLIENT_CERT_FILE
              value: {{ template "redis.tlsCert" . }}
            - name: REDIS_EXPORTER_TLS_CA_CERT_FILE
              value: {{ template "redis.tlsCACert" . }}
            {{- end }}
          volumeMounts:
            {{- if .Values.usePasswordFile }}
            - name: redis-password
              mountPath: /secrets/
            {{- end }}
            {{- if .Values.tls.enabled }}
            - name: redis-certificates
              mountPath: /opt/bitnami/redis/certs
              readOnly: true
            {{- end }}
          ports:
            - name: metrics
              containerPort: 9121
          resources: {{- toYaml .Values.metrics.resources | nindent 12 }}
  {{- end }}
      {{- $needsVolumePermissions := and .Values.volumePermissions.enabled .Values.slave.persistence.enabled .Values.securityContext.enabled .Values.containerSecurityContext.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/bash
            - -ec
            - |
              {{- if eq ( toString ( .Values.volumePermissions.securityContext.runAsUser )) "auto" }}
              chown -R `id -u`:`id -G | cut -d " " -f2` {{ .Values.slave.persistence.path }}
              {{- else }}
              chown -R {{ .Values.containerSecurityContext.runAsUser }}:{{ .Values.securityContext.fsGroup }} {{ .Values.slave.persistence.path }}
              {{- end }}
          {{- if eq ( toString ( .Values.volumePermissions.securityContext.runAsUser )) "auto "}}
          securityContext: {{- omit .Values.volumePermissions.securityContext "runAsUser" | toYaml | nindent 12 }}
          {{- else }}
          securityContext: {{- .Values.volumePermissions.securityContext | toYaml | nindent 12 }}
          {{- end }}
          resources: {{- toYaml .Values.volumePermissions.resources | nindent 12 }}
          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 | nindent 12 }}
          {{- if .Values.sysctlImage.mountHostSys }}
          volumeMounts:
            - name: host-sys
              mountPath: /host-sys
          {{- end }}
          command: {{- toYaml .Values.sysctlImage.command | nindent 12 }}
          securityContext:
            privileged: true
            runAsUser: 0
        {{- end }}
        {{- end }}
      volumes:
        - name: start-scripts
          configMap:
            name: {{ include "redis.fullname" . }}-scripts
            defaultMode: 0755
        - 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: redis-tmp-conf
          emptyDir: {}
    {{- if .Values.tls.enabled }}
        - name: redis-certificates
          secret:
            secretName: {{ required "A secret containing the certificates for the TLS traffic is required when TLS in enabled" .Values.tls.certificatesSecret }}
            defaultMode: 256
    {{- end }}
    {{- 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
      {{- if .Values.slave.statefulset.volumeClaimTemplates }}
        {{- if .Values.slave.statefulset.volumeClaimTemplates.labels }}
          {{- toYaml .Values.slave.statefulset.volumeClaimTemplates.labels | nindent 10 }}
        {{- end }}
        {{- if .Values.slave.statefulset.volumeClaimTemplates.annotations }}
        annotations:
          {{- toYaml .Values.slave.statefulset.volumeClaimTemplates.annotations | nindent 10 }}
        {{- end }}
      {{- end }}
      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 | nindent 12 }}
        {{- end -}}
        {{- if .Values.slave.persistence.matchExpressions }}
          matchExpressions: {{- toYaml .Values.slave.persistence.matchExpressions | nindent 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 }}