K8S上部署一个redis
部署单节点redis
使用的镜像是官方的redis:5.0.5-alpine
查看一下镜像，
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| docker inspect redis:5.0.5-alpine
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确认一些关键信息
redis确实是官方的redis。
默认的启动命令是redis-server。
工作目录是/data
这些信息可以帮助我们确认，配置文件等重要数据的挂载位置。
附上yaml文件
前提准备
- 挂载卷使用pvc，提前创建好storageClass。我是使用nfs作了provisioner
- 创建自己的namespace
redis-configmap.yaml
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| apiVersion: v1
kind: ConfigMap
metadata:
name: redis-config
namespace: ks-system
data:
redis-config: |
dir /data/data
requirepass HS76afsdb67
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redis-pvc.yaml
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| apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: redis-pvc
namespace: ks-system
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 2Gi
storageClassName: nfs-client
volumeMode: Filesystem
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redis-deploy.yaml
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| apiVersion: apps/v1
kind: Deployment
metadata:
namespace: ks-system
name: redis
labels:
app: redis
spec:
replicas: 1
selector:
matchLabels:
app: redis
template:
metadata:
labels:
app: redis
spec:
volumes:
- name: redis-data
persistentVolumeClaim:
claimName: redis-pvc
- name: config
configMap:
name: redis-config
items:
- key: redis-config
path: redis.conf
containers:
- name: redis
image: redis:5.0.5-alpine
command:
- "sh"
- "-c"
- "redis-server /data/conf/redis.conf"
ports:
- containerPort: 6379
protocol: TCP
resources:
limits:
cpu: "1"
volumeMounts:
- name: redis-data
mountPath: /data/data
- name: config
mountPath: /data/conf
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redis-svc.yaml
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| apiVersion: v1
kind: Service
metadata:
name: redis
namespace: ks-system
labels:
app: redis
spec:
type: NodePort
ports:
- name: redis-port
port: 6379
targetPort: 6379
selector:
app: redis
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