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說明:centOS操作系統,操作系統已安裝過redis,端口6379已被占用。容器將會使用6380端口。本次操作為了實例化redis數據,并掛載到宿主機,防止容器被刪除導致的數據丟失!
一、安裝
1.搜索redis容器鏡像并拉取容器鏡像
[root@localhost]# docker search --limit 10 redis
[root@localhost]# docker pull redis
2.在宿主機本地創建redis存儲配置文件和數據的目錄,我這里創建/docker/redis下
[root@localhost redis]# pwd
/docker/redis
3.配置文件
復制原有redis.conf到/docker/redis/目錄下
修改配置(最重要主要4項:修改后臺運行默認為no、端口、存放位置、開啟持久化):
requirepass 123
maxclients 10000
#如果要外網訪問,請注釋掉下面,或者修改為0.0.0.0,保險起見,也可以把protected-mode設置為no
bind 0.0.0.0
protected-mode no
#注意修改這里端口,根據你實際暴露端口情況配置
port 6380
tcp-backlog 511
timeout 0
tcp-keepalive 300
#注意這里要把后臺運行設置為no,避免docker后臺運行沖突
daemonize no
supervised no
pidfile /docker/redis/redis.pid
loglevel notice
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
#注意修改這里的目錄為容器內目錄,默認reids進來是在/data/目錄
dir /data/
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
#注意修改這里的配置,yes開啟持久化,no關閉持久化
appendonly yes
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
4.啟動容器
啟動命令:docker run -p 6380:6380 --name forredis2 --privileged=true -v /docker/redis/redis.conf:/etc/redis/redis.conf -v /docker/redis/data:/data -d redis
效果如下:
[root@localhost]# docker run -p 6380:6380 --name forredis2 --privileged=true -v /docker/redis/redis.conf:/etc/redis/redis.conf -v /docker/redis/data:/data -d redis
d536dd728243ccee23b78e0289e30f7ee25084d308766fb9aa317d691d0dea7d
[root@localhost]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d536dd728243 redis "docker-entrypoint.s…" 3 seconds ago Up 2 seconds 6379/tcp, 0.0.0.0:6380->6380/tcp, :::6380->6380/tcp forredis2參數講解:
參數介紹:
- docker run -p 6380:6380 --name forredis2? 別名
- --privileged=true? 掛載容器卷目錄權限
- -v /docker/redis/redis.conf[宿主機配置文件]:/etc/redis/redis.conf??[容器配置文件]
- -v /docker/redis/data[宿主機數據存儲位置]:/data?[容器數據存儲位置]
- -d redis[:版本號]
二、進入容器,指定配置文件啟動redis服務
1.啟動redis服務
[root@localhost data]# docker exec -it forredis2 /bin/bash
root@d536dd728243:/data# redis-server /etc/redis/redis.conf
24:C 02 Jun 2022 02:42:56.096 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
24:C 02 Jun 2022 02:42:56.096 # Redis version=6.2.6, bits=64, commit=00000000, modified=0, pid=24, just started
24:C 02 Jun 2022 02:42:56.096 # Configuration loaded
24:M 02 Jun 2022 02:42:56.097 * monotonic clock: POSIX clock_gettime
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ Redis 6.2.6 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in standalone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6380
| `-._ `._ / _.-' | PID: 24
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | https://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
如果要后臺運行,將啟動redis命令后加上&,即
redis-server /etc/redis/redis.conf &
“/etc/redis/redis.conf”為容器內配置文件,已通過啟動容器時掛載到宿主機的/docker/redis/redis.conf
2.指定6380端口登陸客戶端
root@ce16f8c4fd8c:/data# redis-cli -p 6380
127.0.0.1:6380> auth 123
OK
127.0.0.1:6380> keys *
(empty array)
127.0.0.1:6380> set a 1
OK
127.0.0.1:6380> keys *
1) "a"
三、刪除容器后重新啟動容器
為了驗證redis持久化,刪除容器后數據在宿主機不會丟失,我們嘗試刪除容器后重新啟動
1.刪除,然后查看宿主機目錄下是否有持久化文件,查看這一步可以放在上一步后
[root@localhost ~]# docker rm -f forredis2
forredis2
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e28f2bd4b59e redis "docker-entrypoint.s…" 10 hours ago Exited (130) 10 hours ago exciting_yalow
4e291d491cda redis "docker-entrypoint.s…" 10 hours ago Exited (0) 10 hours ago dreamy_rhodes
be3f2f06ed9f redis "docker-entrypoint.s…" 12 hours ago Exited (0) 12 hours ago awesome_jones
9a206e517842 redis "docker-entrypoint.s…" 12 hours ago Exited (0) 12 hours ago hopeful_volhard
69c9f429c98a 7614ae9453d1 "docker-entrypoint.s…" 16 hours ago Exited (1) 16 hours ago youthful_goodall
25f26d7892d5 redis "docker-entrypoint.s…" 18 hours ago Exited (0) 16 hours ago amazing_lovelace
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@localhost ~]# cd /docker/redis/data/
[root@localhost data]# ls
appendonly.aof dump.rdb
2.重啟容器
[root@localhost data]# docker run -p 6380:6380 --name forredis2 --privileged=true -v /docker/redis/redis.conf:/etc/redis/redis.conf -v /docker/redis/data:/data -d redis
d536dd728243ccee23b78e0289e30f7ee25084d308766fb9aa317d691d0dea7dc
重復第【二】步的操作,進入redis,查看數據是否存在
[root@localhost ~]# docker exec -it forredis2 /bin/bash
root@d536dd728243:/data# redis-cli -p 6380
127.0.0.1:6380> auth 123
127.0.0.1:6380> keys *
1) "a"
數據存在,成功!
原文鏈接:https://juejin.cn/post/7104480777907224590
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