**redis.yaml**
```bash
---
kind: ConfigMap
apiVersion: v1
metadata:
name: redis-config
namespace: tools-env
labels:
app: redis
data:
redis.conf: |-
dir /data
port 6379
bind 0.0.0.0
appendonly yes
protected-mode no
requirepass super
pidfile /data/redis-6379.pid
maxmemory 1073741824
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: redis
namespace: tools-env
spec:
storageClassName: managed-nfs-storage
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Gi
---
apiVersion: v1
kind: Service
metadata:
name: redis
namespace: tools-env
labels:
app: redis
spec:
ports:
- name: redis
port: 6379
targetPort: 6379
selector:
app: redis
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: redis
namespace: tools-env
labels:
app: redis
spec:
replicas: 1
selector:
matchLabels:
app: redis
template:
metadata:
labels:
app: redis
spec:
#进行初始化操作,修改系统配置,解决Redis启动时提示的警告信息
initContainers:
- name: system-init
image: busybox:1.32
imagePullPolicy: IfNotPresent
command:
- "sh"
- "-c"
- "echo 2000 > /proc/sys/net/core/somaxconn && echo never > /sys/kernel/mm/transparent_hugepage/enabled"
securityContext:
privileged: true
runAsUser: 0
volumeMounts:
- name: sys
mountPath: /sys
containers:
- name: redis
image: redis:5.0.8
command:
- "sh"
- "-c"
- "redis-server /usr/local/etc/redis/redis.conf"
ports:
- containerPort: 6379
resources:
limits:
cpu: 1000m
memory: 1024Mi #注意这里的内存限制要和上面的ConfigMap中maxmemory参数限制的内存大小保持一致
requests:
cpu: 1000m
memory: 1024Mi
livenessProbe:
tcpSocket:
port: 6379
initialDelaySeconds: 300
timeoutSeconds: 1
periodSeconds: 10
successThreshold: 1
failureThreshold: 3
readinessProbe:
tcpSocket:
port: 6379
initialDelaySeconds: 5
timeoutSeconds: 1
periodSeconds: 10
successThreshold: 1
failureThreshold: 3
volumeMounts:
- name: data
mountPath: /data
- name: config
mountPath: /usr/local/etc/redis/redis.conf
subPath: redis.conf
volumes:
- name: data
persistentVolumeClaim:
claimName: redis
- name: config
configMap:
name: redis-config
- name: sys
hostPath:
path: /sys
[root@k8s01 tools-env]# kubectl apply -f redis.yaml
configmap/redis-config created
persistentvolumeclaim/redis created
service/redis created
deployment.apps/redis created
[root@k8s01 tools-env]# kubectl get -n tools-env po
NAME READY STATUS RESTARTS AGE
redis-78df9698c9-tvwms 1/1 Running 0 31s
[root@k8s01 tools-env]# kubectl get -n tools-env svc
redis ClusterIP 10.96.70.24 <none> 6379/TCP 31s
[root@k8s01 tools-env]# kubectl exec -it -n tools-env redis-78df9698c9-tvwms bash
root@redis-78df9698c9-tvwms:/data# redis-cli -a super
127.0.0.1:6379> ping
PONG
127.0.0.1:6379>
```
**maxmemory参数用于配置Redis可用最大内存数,单位为字节,1073741824=1G大小,下面Deployment 部署时候的 limit 要和该限制的大小保持一致!**

k8s部署redis