redis-cache.yaml

# Copyright 2018 Google LLC
#
# 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: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: redis-pdb
spec:
  minAvailable: 66%
  selector:
    matchLabels:
      app: redis
      redis-type: cache
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: redis-cache
spec:
  selector:
    matchLabels:
      app: redis
  replicas: 6
  template:
    metadata:
      labels:
        app: redis
        redis-type: cache
    spec:
      hostNetwork: true
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: app
                    operator: In
                    values:
                      - redis
              topologyKey: "kubernetes.io/hostname"
      containers:
        - name: redis-server
          image: "redis:4.0-alpine"
          imagePullPolicy: Always
          command:
            - "redis-server"
          args:
            - "/etc/redis/redis.conf"
            - "--protected-mode"
            - "no"
          resources:
            requests:
              cpu: "100m"
              memory: "1Gi"
          ports:
            - name: redis
              containerPort: 6379
              protocol: "TCP"
            - name: redis-cluster
              containerPort: 16379
              protocol: "TCP"
          volumeMounts:
            - name: "redis-conf"
              mountPath: "/etc/redis"
      volumes:
        - name: "redis-conf"
          configMap:
            name: "redis-conf"
            items:
              - key: "redis.conf"
                path: "redis.conf"