[kubernetes][redis] kubernetes에 redis 간단 설치

kubernetes에서 redis 간단 설치하기

redis.yaml 을 생성한 후 서비스 구동에 필요한 svc, configmap, pod을 정의한다.

apiVersion: v1
kind: ConfigMap
metadata:
  name: redis-config
data:
  redis-config: |
    maxmemory 20mb
    maxmemory-policy allkeys-lru
---
apiVersion: v1
kind: Service
metadata:
  name: redis
  labels:
    app: redis
spec:
  selector:
    app: redis
  ports:
  - name: redis
    protocol: TCP
    port: 6379
    targetPort: 6379
---
apiVersion: v1
kind: Pod
metadata:
  name: redis
  labels:
      app: redis
spec:
  containers:
  - name: redis
    image: redis:latest
    command:
      - redis-server
      - "/redis-master/redis.conf"
    env:
    - name: MASTER
      value: "true"
    ports:
    - containerPort: 6379
      name: redis
    volumeMounts:
    - mountPath: /redis-master-data
      name: data
    - mountPath: /redis-master
      name: config
  volumes:
    - name: data
      emptyDir: {}
    - name: config
      configMap:
        name: redis-config
        items:
        - key: redis-config
          path: redis.conf

위의 yaml을 이용하여 kubernetes 기본 namespace인 default에 설치

$ kubectl apply -f redis.yaml

 

정상 구동 확인

$ kubectl get pod
NAME                                   READY   STATUS             RESTARTS     AGE
redis                                  1/1     Running            0            29m

 

Cluster내부에서 접속 확인을 하기 위한 busybox 설치

nc.yaml

apiVersion: v1
kind: Pod
metadata:
  name: busybox
spec:
  containers:
  - name: busybox
    image: busybox
    command:
      - sleep
      - "3600"
    imagePullPolicy: IfNotPresent
  restartPolicy: Always

 

nc busybox도 설치

$ kubectl apply -f ncutils.yaml

 

Cluster 내부에서 접속 확인

$ kubectl exec -it busybox sh -- nc redis 6379
ping
+PONG