Redis内存数据库环境快速搭建部署

mkdir -vp /app/redis/data
tee /app/redis/redis.conf <<'EOF'
# Author: WeiyiGeek
# blog: https://blog.weiyigeek.top
# 绑定任意接口、服务端口、后台运行。
bind 0.0.0.0
port 6379
# 容器里必须设置为no
daemonize no
supervised auto

# redis服务pid进程文件名
pidfile "/var/run/redis.pid"

# 关闭保护模式，并配置使用密码访问
protected-mode no
requirepass "123456"
# echo -e "weiyigeek"|sha256sum 
# requirepass 097575a79efcd7ea7b1efa2bcda78a4fc7cbd0820736b2f2708e72c3d21f8b61

# 数据文件保存路径，rdb/AOF文件也保存在这里
dir "/data"

# 日志文件记录文件(notice / verbose)
# logfile "/logs/redis.log"
# loglevel verbose  

# 最大客户端连接数
maxclients 10000

# 客户端连接空闲多久后断开连接，单位秒，0表示禁用
timeout 60
tcp-keepalive 60 

# Redis 数据持久化(rdb/aof)配置
# RDB 文件名
dbfilename "dump.rdb"
# 数据自动保存脚本条件例如300s中有10key发生变化
save 300 10
save 60 10000
# 对RDB文件进行压缩，建议以（磁盘）空间换（CPU）时间。
rdbcompression yes
# 版本5的RDB有一个CRC64算法的校验和放在了文件的最后。这将使文件格式更加可靠。
rdbchecksum yes
# RDB自动触发策略是否启用，默认为yes
rdb-save-incremental-fsync yes

# AOF开启
appendonly yes
# AOF文件名
appendfilename "appendonly.aof"
# 可选值 always， everysec，no，建议设置为everysec
appendfsync everysec

# Redis风险命令重命名
# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
rename-command FLUSHDB b840fc02d524045429941cc15f59e41cb7be6c53
rename-command FLUSHALL b840fc02d524045429941cc15f59e41cb7be6c54
rename-command EVAL b840fc02d524045429941cc15f59e41cb7be6c55
rename-command DEBUG b840fc02d524045429941cc15f59e41cb7be6c56
# rename-command SHUTDOWN SHUTDOWN
EOF

# docker 环境
$ docker run -d -p 6379:6379 \
 -v /app/redis/redis.conf:/etc/redis/redis.conf \
 -v /app/redis/data:/data \
  --name redis-server redis:6.2.6-alpine3.15 redis-server /etc/redis/redis.conf

# nerdctl + containerd 环境
$ nerdctl run -d -p 6379:6379 \
 -v /app/redis/redis.conf:/etc/redis/redis.conf \
 -v /app/redis/data:/data \
 --name redis-server redis:6.2.6-alpine3.15 redis-server /etc/redis/redis.conf
5e854a58087ae1bba5a661b2941474560cbecc37f54c7f4e7a28afbaed6aebf0

# 查看容器是否运行
$ docker ps
CONTAINER ID   IMAGE                          COMMAND                  CREATED          STATUS          PORTS                    NAMES
2919b8a9478a   redis:6.2.6-alpine3.15         "docker-entrypoint.s…"   20 seconds ago   Up 19 seconds   0.0.0.0:6379->6379/tcp   redis-server

# 连接redis数据库是否正常
$ docker exec -it redis-server redis-cli -a 123456 ping
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
PONG

kubectl create configmap -n database redis-single-conf --from-file=/app/redis/redis.conf
kubectl get configmap -n database redis-single-conf
# NAME                DATA   AGE
# redis-single-conf   1      30s

tee redis-single-server.yaml <<'EOF'
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: __APPNAME__
  namespace: __APPNAMESPACE__
  annotations:
    description: redis-single
spec:
  replicas: 1
  serviceName: __APPNAME__
  selector:
    matchLabels:
      app: __APPNAME__
  template:
    metadata:
      labels:
        app: __APPNAME__
    spec:
      containers:
      - name: redis
        image: redis:6.2.6-alpine3.15
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 6379
          name: server
        command: [ "redis-server", "/conf/redis.conf"]
        volumeMounts:
        # 从configmap获取的配置文件，挂载到指定文件中【https://blog.weiyigeek.top】.
        - name: conf
          mountPath: /conf/redis.conf
          subPath: redis.conf
        - name: data
          mountPath: /data
        # - name: logs
        #   mountPath: /logs
        # 时区设置
        - name: timezone
          mountPath: /etc/localtime              
      volumes:
      - name: conf
        # 配置文件采用configMap
        configMap:
          name: redis-single-conf
          defaultMode: 0755
        # 日志采用hostPath卷
      - name: logs
        hostPath:
          type: DirectoryOrCreate 
          path: /nfsdisk-31/datastore/redis/demo1/logs
        # 时区定义
      - name: timezone                             
        hostPath:
          path: /usr/share/zoneinfo/Asia/Shanghai
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: "__STORAGECLASSNAME__"
      resources:
        requests:
          storage: 2Gi
---
apiVersion: v1
kind: Service
metadata:
  name: __APPNAME__
  namespace: __APPNAMESPACE__
spec:
  type: ClusterIP
  ports:
  - port: 6379
    targetPort: 6379
    name: tcp
  selector:
    app: __APPNAME__
EOF

# 注意 替换 storageClassName
sed -i -e 's/__APPNAME__/redis-single/g' -e 's/__APPNAMESPACE__/database/g' -e 's/__STORAGECLASSNAME__/managed-nfs-storage/' redis-single-server.yaml

kubectl apply -f redis-single-server.yaml
# statefulset.apps/redis-single created
# service/redis-single created

kubectl get pod -n database -l app=redis-single
  # NAME             READY   STATUS    RESTARTS   AGE
  # redis-single-0   1/1     Running   0          16m

kubectl get svc -n database redis-single
  # NAME           TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE
  # redis-single   ClusterIP   11.19.196.169   <none>        6379/TCP   15m

# 连接到redis数据库
$ telnet 11.19.196.169 6379
  # Trying 11.19.196.169...
  # Connected to 11.19.196.169.
  # Escape character is '^]'.
  # auth 123456
  # +OK
  # ping
  # +PONG
  # info
  # $4241
  # # Server
  # redis_version:6.2.6
  # redis_git_sha1:00000000
  # redis_git_dirty:0
  # redis_build_id:63421500bb103677
  # redis_mode:standalone
  # os:Linux 4.20.13-1.el7.elrepo.x86_64 x86_64
  # arch_bits:64
  # multiplexing_api:epoll
  # atomicvar_api:atomic-builtin
  # gcc_version:10.3.1
  # process_id:1
  # process_supervised:no
  # run_id:677b6d0188b564670f26ce47154b70c8aa6c3f04
  # tcp_port:6379
  # server_time_usec:1650962303340701