apiVersion: v1
kind: Secret
metadata:
  name: redis
  namespace: redis
  annotations:
    kube-1password: o6gzlxq2zkgpdkndulz3htbt3y
    kube-1password/vault: Kubernetes
    kube-1password/password-key: redis-password
  labels:
    app.kubernetes.io/name: redis
type: Opaque
---
apiVersion: v1
kind: ServiceAccount
automountServiceAccountToken: true
metadata:
  name: redis
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: redis-configuration
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
data:
  redis.conf: |-
    # User-supplied common configuration:
    # Enable AOF https://redis.io/topics/persistence#append-only-file
    appendonly yes
    # Disable RDB persistence, AOF persistence already enabled.
    save ""
    # End of common configuration
  master.conf: |-
    dir /data
    # User-supplied master configuration:
    rename-command FLUSHDB ""
    rename-command FLUSHALL ""
    # End of master configuration
  replica.conf: |-
    dir /data
    # User-supplied replica configuration:
    rename-command FLUSHDB ""
    rename-command FLUSHALL ""
    # End of replica configuration
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: redis-health
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
data:
  ping_readiness_local.sh: |-
    #!/bin/bash

    [[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
    [[ -n "$REDIS_PASSWORD" ]] && export REDISCLI_AUTH="$REDIS_PASSWORD"
    response=$(
      timeout -s 3 $1 \
      redis-cli \
        -h localhost \
        -p $REDIS_PORT \
        ping
    )
    if [ "$?" -eq "124" ]; then
      echo "Timed out"
      exit 1
    fi
    if [ "$response" != "PONG" ]; then
      echo "$response"
      exit 1
    fi
  ping_liveness_local.sh: |-
    #!/bin/bash

    [[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
    [[ -n "$REDIS_PASSWORD" ]] && export REDISCLI_AUTH="$REDIS_PASSWORD"
    response=$(
      timeout -s 3 $1 \
      redis-cli \
        -h localhost \
        -p $REDIS_PORT \
        ping
    )
    if [ "$?" -eq "124" ]; then
      echo "Timed out"
      exit 1
    fi
    responseFirstWord=$(echo $response | head -n1 | awk '{print $1;}')
    if [ "$response" != "PONG" ] && [ "$responseFirstWord" != "LOADING" ] && [ "$responseFirstWord" != "MASTERDOWN" ]; then
      echo "$response"
      exit 1
    fi
  ping_readiness_master.sh: |-
    #!/bin/bash

    [[ -f $REDIS_MASTER_PASSWORD_FILE ]] && export REDIS_MASTER_PASSWORD="$(< "${REDIS_MASTER_PASSWORD_FILE}")"
    [[ -n "$REDIS_MASTER_PASSWORD" ]] && export REDISCLI_AUTH="$REDIS_MASTER_PASSWORD"
    response=$(
      timeout -s 3 $1 \
      redis-cli \
        -h $REDIS_MASTER_HOST \
        -p $REDIS_MASTER_PORT_NUMBER \
        ping
    )
    if [ "$?" -eq "124" ]; then
      echo "Timed out"
      exit 1
    fi
    if [ "$response" != "PONG" ]; then
      echo "$response"
      exit 1
    fi
  ping_liveness_master.sh: |-
    #!/bin/bash

    [[ -f $REDIS_MASTER_PASSWORD_FILE ]] && export REDIS_MASTER_PASSWORD="$(< "${REDIS_MASTER_PASSWORD_FILE}")"
    [[ -n "$REDIS_MASTER_PASSWORD" ]] && export REDISCLI_AUTH="$REDIS_MASTER_PASSWORD"
    response=$(
      timeout -s 3 $1 \
      redis-cli \
        -h $REDIS_MASTER_HOST \
        -p $REDIS_MASTER_PORT_NUMBER \
        ping
    )
    if [ "$?" -eq "124" ]; then
      echo "Timed out"
      exit 1
    fi
    responseFirstWord=$(echo $response | head -n1 | awk '{print $1;}')
    if [ "$response" != "PONG" ] && [ "$responseFirstWord" != "LOADING" ]; then
      echo "$response"
      exit 1
    fi
  ping_readiness_local_and_master.sh: |-
    script_dir="$(dirname "$0")"
    exit_status=0
    "$script_dir/ping_readiness_local.sh" $1 || exit_status=$?
    "$script_dir/ping_readiness_master.sh" $1 || exit_status=$?
    exit $exit_status
  ping_liveness_local_and_master.sh: |-
    script_dir="$(dirname "$0")"
    exit_status=0
    "$script_dir/ping_liveness_local.sh" $1 || exit_status=$?
    "$script_dir/ping_liveness_master.sh" $1 || exit_status=$?
    exit $exit_status
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: redis-scripts
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
data:
  start-master.sh: |
    #!/bin/bash

    [[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
    if [[ ! -f /opt/bitnami/redis/etc/master.conf ]];then
        cp /opt/bitnami/redis/mounted-etc/master.conf /opt/bitnami/redis/etc/master.conf
    fi
    if [[ ! -f /opt/bitnami/redis/etc/redis.conf ]];then
        cp /opt/bitnami/redis/mounted-etc/redis.conf /opt/bitnami/redis/etc/redis.conf
    fi
    ARGS=("--port" "${REDIS_PORT}")
    ARGS+=("--requirepass" "${REDIS_PASSWORD}")
    ARGS+=("--masterauth" "${REDIS_PASSWORD}")
    ARGS+=("--include" "/opt/bitnami/redis/etc/redis.conf")
    ARGS+=("--include" "/opt/bitnami/redis/etc/master.conf")
    exec redis-server "${ARGS[@]}"
  start-replica.sh: |
    #!/bin/bash

    get_port() {
        hostname="$1"
        type="$2"

        port_var=$(echo "${hostname^^}_SERVICE_PORT_$type" | sed "s/-/_/g")
        port=${!port_var}

        if [ -z "$port" ]; then
            case $type in
                "SENTINEL")
                    echo 26379
                    ;;
                "REDIS")
                    echo 6379
                    ;;
            esac
        else
            echo $port
        fi
    }

    get_full_hostname() {
        hostname="$1"
        echo "${hostname}.${HEADLESS_SERVICE}"
    }

    REDISPORT=$(get_port "$HOSTNAME" "REDIS")

    [[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
    [[ -f $REDIS_MASTER_PASSWORD_FILE ]] && export REDIS_MASTER_PASSWORD="$(< "${REDIS_MASTER_PASSWORD_FILE}")"
    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

    echo "" >> /opt/bitnami/redis/etc/replica.conf
    echo "replica-announce-port $REDISPORT" >> /opt/bitnami/redis/etc/replica.conf
    echo "replica-announce-ip $(get_full_hostname "$HOSTNAME")" >> /opt/bitnami/redis/etc/replica.conf
    ARGS=("--port" "${REDIS_PORT}")
    ARGS+=("--replicaof" "${REDIS_MASTER_HOST}" "${REDIS_MASTER_PORT_NUMBER}")
    ARGS+=("--requirepass" "${REDIS_PASSWORD}")
    ARGS+=("--masterauth" "${REDIS_MASTER_PASSWORD}")
    ARGS+=("--include" "/opt/bitnami/redis/etc/redis.conf")
    ARGS+=("--include" "/opt/bitnami/redis/etc/replica.conf")
    exec redis-server "${ARGS[@]}"
---
apiVersion: v1
kind: Service
metadata:
  name: redis-headless
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
spec:
  type: ClusterIP
  clusterIP: None
  ports:
    - name: tcp-redis
      port: 6379
      targetPort: redis
  selector:
    app.kubernetes.io/name: redis
---
apiVersion: v1
kind: Service
metadata:
  name: redis-master
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
    app.kubernetes.io/component: master
spec:
  type: ClusterIP
  internalTrafficPolicy: Cluster
  sessionAffinity: None
  ports:
    - name: tcp-redis
      port: 6379
      targetPort: redis
      nodePort: null
  selector:
    app.kubernetes.io/name: redis
    app.kubernetes.io/component: master
---
apiVersion: v1
kind: Service
metadata:
  name: redis-replicas
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
    app.kubernetes.io/component: replica
spec:
  type: ClusterIP
  internalTrafficPolicy: Cluster
  sessionAffinity: None
  ports:
    - name: tcp-redis
      port: 6379
      targetPort: redis
      nodePort: null
  selector:
    app.kubernetes.io/name: redis
    app.kubernetes.io/component: replica
---

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis-master
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
    app.kubernetes.io/component: master
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: redis
      app.kubernetes.io/component: master
  serviceName: redis-headless
  updateStrategy:
    rollingUpdate: {}
    type: RollingUpdate
  template:
    metadata:
      labels:
        app.kubernetes.io/name: redis
        app.kubernetes.io/component: master
    spec:
      securityContext:
        fsGroup: 1001
      serviceAccountName: redis
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - podAffinityTerm:
                labelSelector:
                  matchLabels:
                    app.kubernetes.io/name: redis
                    app.kubernetes.io/component: master
                namespaces:
                  - "default"
                topologyKey: kubernetes.io/hostname
              weight: 1
        nodeAffinity:
      terminationGracePeriodSeconds: 30
      containers:
        - name: redis
          image: docker.io/bitnami/redis:7.0.4-debian-11-r11
          imagePullPolicy: "IfNotPresent"
          securityContext:
            runAsUser: 1001
          command:
            - /bin/bash
          args:
            - -c
            - /opt/bitnami/scripts/start-scripts/start-master.sh
          env:
            - name: BITNAMI_DEBUG
              value: "false"
            - name: REDIS_REPLICATION_MODE
              value: master
            - name: ALLOW_EMPTY_PASSWORD
              value: "yes"
            - name: REDIS_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: redis
                  key: redis-password
            - name: REDIS_TLS_ENABLED
              value: "no"
            - name: REDIS_PORT
              value: "6379"
          ports:
            - name: redis
              containerPort: 6379
          livenessProbe:
            initialDelaySeconds: 20
            periodSeconds: 5
            # One second longer than command timeout should prevent generation of zombie processes.
            timeoutSeconds: 6
            successThreshold: 1
            failureThreshold: 5
            exec:
              command:
                - sh
                - -c
                - /health/ping_liveness_local.sh 5
          readinessProbe:
            initialDelaySeconds: 20
            periodSeconds: 5
            timeoutSeconds: 2
            successThreshold: 1
            failureThreshold: 5
            exec:
              command:
                - sh
                - -c
                - /health/ping_readiness_local.sh 1
          resources:
            limits: {}
            requests: {}
          volumeMounts:
            - name: start-scripts
              mountPath: /opt/bitnami/scripts/start-scripts
            - name: health
              mountPath: /health
            - name: redis-data
              mountPath: /data
              subPath:
            - name: config
              mountPath: /opt/bitnami/redis/mounted-etc
            - name: redis-tmp-conf
              mountPath: /opt/bitnami/redis/etc/
            - name: tmp
              mountPath: /tmp
      volumes:
        - name: start-scripts
          configMap:
            name: redis-scripts
            defaultMode: 0755
        - name: health
          configMap:
            name: redis-health
            defaultMode: 0755
        - name: config
          configMap:
            name: redis-configuration
        - name: redis-tmp-conf
          emptyDir: {}
        - name: tmp
          emptyDir: {}
  volumeClaimTemplates:
    - metadata:
        name: redis-data
        labels:
          app.kubernetes.io/name: redis
          app.kubernetes.io/component: master
      spec:
        accessModes:
          - "ReadWriteOnce"
        resources:
          requests:
            storage: "4Gi"

---

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis-replicas
  namespace: redis
  labels:
    app.kubernetes.io/name: redis
    app.kubernetes.io/component: replica
spec:
  replicas: 2
  selector:
    matchLabels:
      app.kubernetes.io/name: redis
      app.kubernetes.io/component: replica
  serviceName: redis-headless
  updateStrategy:
    rollingUpdate: {}
    type: RollingUpdate
  template:
    metadata:
      labels:
        app.kubernetes.io/name: redis
        app.kubernetes.io/component: replica
    spec:
      securityContext:
        fsGroup: 1001
      serviceAccountName: redis
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - podAffinityTerm:
                labelSelector:
                  matchLabels:
                    app.kubernetes.io/name: redis
                    app.kubernetes.io/component: replica
                namespaces:
                  - "default"
                topologyKey: kubernetes.io/hostname
              weight: 1
        nodeAffinity:
      terminationGracePeriodSeconds: 30
      containers:
        - name: redis
          image: docker.io/bitnami/redis:7.0.4-debian-11-r11
          imagePullPolicy: "IfNotPresent"
          securityContext:
            runAsUser: 1001
          command:
            - /bin/bash
          args:
            - -c
            - /opt/bitnami/scripts/start-scripts/start-replica.sh
          env:
            - name: BITNAMI_DEBUG
              value: "false"
            - name: REDIS_REPLICATION_MODE
              value: slave
            - name: REDIS_MASTER_HOST
              value: redis-master-0.redis-headless.redis.svc.cluster.local
            - name: REDIS_MASTER_PORT_NUMBER
              value: "6379"
            - name: ALLOW_EMPTY_PASSWORD
              value: "yes"
            - name: REDIS_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: redis
                  key: redis-password
            - name: REDIS_MASTER_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: redis
                  key: redis-password
            - name: REDIS_TLS_ENABLED
              value: "no"
            - name: REDIS_PORT
              value: "6379"
          ports:
            - name: redis
              containerPort: 6379
          startupProbe:
            failureThreshold: 22
            initialDelaySeconds: 10
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 5
            tcpSocket:
              port: redis
          livenessProbe:
            initialDelaySeconds: 20
            periodSeconds: 5
            timeoutSeconds: 6
            successThreshold: 1
            failureThreshold: 5
            exec:
              command:
                - sh
                - -c
                - /health/ping_liveness_local_and_master.sh 5
          readinessProbe:
            initialDelaySeconds: 20
            periodSeconds: 5
            timeoutSeconds: 2
            successThreshold: 1
            failureThreshold: 5
            exec:
              command:
                - sh
                - -c
                - /health/ping_readiness_local_and_master.sh 1
          resources:
            limits: {}
            requests: {}
          volumeMounts:
            - name: start-scripts
              mountPath: /opt/bitnami/scripts/start-scripts
            - name: health
              mountPath: /health
            - name: redis-data
              mountPath: /data
              subPath:
            - name: config
              mountPath: /opt/bitnami/redis/mounted-etc
            - name: redis-tmp-conf
              mountPath: /opt/bitnami/redis/etc
      volumes:
        - name: start-scripts
          configMap:
            name: redis-scripts
            defaultMode: 0755
        - name: health
          configMap:
            name: redis-health
            defaultMode: 0755
        - name: config
          configMap:
            name: redis-configuration
        - name: redis-tmp-conf
          emptyDir: {}
  volumeClaimTemplates:
    - metadata:
        name: redis-data
        labels:
          app.kubernetes.io/name: redis
          app.kubernetes.io/component: replica
      spec:
        accessModes:
          - "ReadWriteOnce"
        resources:
          requests:
            storage: "2Gi"