Docker下使用Redis

Posted 2021-06-27 jfcat

• 下载Redis image

sudo docker pull redis

• 运行镜像

sudo docker run -itd --name redis-test -p 6379:6379 redis

如果发现有如下重复镜像错误可以先删除镜像

sudo docker rmi 8e712f4f1065

$sudo docker run -itd --name redis-test -p 6379:6379 redis
docker: Error response from daemon: Conflict. The container name "/redis-test" is already in use by container "8e712f4f1065ed8bf01d52766aa412af60c58ac6a82521e2eeb1b4a08ef35a27". You have to remove (or rename) that container to be able to reuse that name.
See 'docker run --help'.

$sudo docker ps -a -q
8e712f4f1065
3e84ea15aac8

$sudo docker rmi 8e712f4f1065

 

• 检查镜像版本

sudo docker image inspect redis:latest|grep -i version

$sudo docker image inspect redis:latest|grep -i version
                "GOSU_VERSION=1.12",
                "REDIS_VERSION=6.2.4",
        "DockerVersion": "19.03.12",
                "GOSU_VERSION=1.12",
                "REDIS_VERSION=6.2.4",

• 查看redis镜像情况

$ sudo docker ps -a
CONTAINER ID   IMAGE                          COMMAND                  CREATED          STATUS                      PORTS     NAMES
ea506c589d1c   redis                          "docker-entrypoint.s…"   48 seconds ago   Exited (0) 14 seconds ago             redis-test
3e84ea15aac8   apache/sharding-proxy:latest   "/bin/sh -c '${LOCAL…"   4 weeks ago      Exited (137) 4 weeks ago              vigorous_golick

• 运行和停止redis

$ sudo docker ps -a
CONTAINER ID   IMAGE                          COMMAND                  CREATED          STATUS                      PORTS     NAMES
ea506c589d1c   redis                          "docker-entrypoint.s…"   48 seconds ago   Exited (0) 14 seconds ago             redis-test
3e84ea15aac8   apache/sharding-proxy:latest   "/bin/sh -c '${LOCAL…"   4 weeks ago      Exited (137) 4 weeks ago              vigorous_golick
$ sudo docker start redis-test
redis-test
$ sudo docker ps -a
CONTAINER ID   IMAGE                          COMMAND                  CREATED          STATUS                     PORTS                                       NAMES
ea506c589d1c   redis                          "docker-entrypoint.s…"   58 seconds ago   Up 2 seconds               0.0.0.0:6379->6379/tcp, :::6379->6379/tcp   redis-test
3e84ea15aac8   apache/sharding-proxy:latest   "/bin/sh -c '${LOCAL…"   4 weeks ago      Exited (137) 4 weeks ago                                               vigorous_golick
$ sudo docker stop redis-test
redis-test

 

• 执行redis-cli

sudo docker exec -it redis-test /bin/bash

$sudo docker exec -it redis-test /bin/bash
root@9f70c9122c06:/data# redis-cli

 

• 性能测试

$ redis-benchmark -n 100000 -c 32 -t SET,GET,INCR,HSET,LPUSH,MSET -q
SET: 128534.70 requests per second, p50=0.127 msec
GET: 128205.13 requests per second, p50=0.127 msec
INCR: 128040.97 requests per second, p50=0.127 msec
LPUSH: 129198.97 requests per second, p50=0.127 msec
HSET: 126582.27 requests per second, p50=0.127 msec
MSET (10 keys): 136239.78 requests per second, p50=0.127 msec

 

• Redis字符串、整形操作

set/ get/ getset/ del/exist/ append

incr/decr/incrby/decrby

127.0.0.1:6379> set a 1
OK
127.0.0.1:6379> get a
"1"
127.0.0.1:6379> incr a
(integer) 2
127.0.0.1:6379> getset a 3
"2"
127.0.0.1:6379> DECR a
(integer) 2
127.0.0.1:6379> INCRBY a
(error) ERR wrong number of arguments for 'incrby' command
127.0.0.1:6379> INCRBY a 1
(integer) 3
127.0.0.1:6379> INCRBY a 2
(integer) 5

 

• Redis 哈希表操作

hset/hget/hmset/hmget/hgetall/hdel/hincr/hincrby

hexits/hlen/hkeys/hvals

127.0.0.1:6379> hset h1 a 1
(integer) 1
127.0.0.1:6379> hget h1 a
"1"
127.0.0.1:6379> hset h1 b 100
(integer) 1
127.0.0.1:6379> hget h1 b
"100"
127.0.0.1:6379> hmset h1 abc 100
OK
127.0.0.1:6379> hmget h1 abc 100
1) "100"
2) (nil)
127.0.0.1:6379> hmget h1 abc
1) "100"
127.0.0.1:6379> HEXISTS h1 abc
(integer) 1
127.0.0.1:6379> HLEN h1
(integer) 3
127.0.0.1:6379> hset h1 a 1 b 2 c 3
(integer) 1
127.0.0.1:6379> hget h1 a
"1"
127.0.0.1:6379> hget h1 b
"2"
127.0.0.1:6379> hgetall h1
1) "a"
2) "1"
3) "b"
4) "2"
5) "abc"
6) "100"
7) "c"
8) "3"

 

• Redis 链表操作

lpush/lpop/rpush/lrange/rpop

127.0.0.1:6379> lpush l1 1
(integer) 1
127.0.0.1:6379> lpush l1 2
(integer) 2
127.0.0.1:6379> lpush l1 3
(integer) 3
127.0.0.1:6379> lrange l1 1 2
1) "2"
2) "1"
127.0.0.1:6379> lrange l1 1 3
1) "2"
2) "1"
127.0.0.1:6379> lrange l1 0 3
1) "3"
2) "2"
3) "1"
127.0.0.1:6379> rpush l1 4
(integer) 4
127.0.0.1:6379> lrange l1 0 3
1) "3"
2) "2"
3) "1"
4) "4"
127.0.0.1:6379> lrange l1 0 2
1) "3"
2) "2"
3) "1"
127.0.0.1:6379> lrange l1 0 3
1) "3"
2) "2"
3) "1"
4) "4"

 

• Redis的set操作

sadd/srem/smembers/sismember

sdiff/sinter/sunion

127.0.0.1:6379> sadd s1 1
(integer) 1
127.0.0.1:6379> sadd s1 2
(integer) 1
127.0.0.1:6379> smembers s1
1) "1"
2) "2"
127.0.0.1:6379> sadd s2 3
(integer) 1
127.0.0.1:6379> sadd s2 2
(integer) 1
127.0.0.1:6379> sdiff s1 s2
1) "1"

 

• Redis的sorted set操作

zadd key score member  将成员以及该成员的分数

zscore key member 返回指定成员的分数

zcard key 获取集合中成员数量

zrem key member 移除集合汇总指定的成员，可以指定多个成员

zrange key start end withscores 获取集合中脚注为start-end的成员

zrevrange key start stop with scores 按照分数从大到小的顺序返回索引从start到stop之间的所有元素

127.0.0.1:6379> zadd z1 1.0 a
(integer) 1
127.0.0.1:6379> zadd z1 1.5 b
(integer) 1
127.0.0.1:6379> zadd z1 2 c
(integer) 1
127.0.0.1:6379> zcard key
(integer) 0
127.0.0.1:6379> zcard z1
(integer) 3
127.0.0.1:6379> zrange z1 a c
(error) ERR value is not an integer or out of range
127.0.0.1:6379> zrange z1 1.0 2
(error) ERR value is not an integer or out of range
127.0.0.1:6379> help zrange

  ZRANGE key min max [BYSCORE|BYLEX] [REV] [LIMIT offset count] [WITHSCORES]
  summary: Return a range of members in a sorted set
  since: 1.2.0
  group: sorted_set

127.0.0.1:6379> zrange z1 1.0 2 withscores
(error) ERR value is not an integer or out of range
127.0.0.1:6379> zrange z1 1 2 withscores
1) "b"
2) "1.5"
3) "c"
4) "2"
127.0.0.1:6379> zrange z1 1 2
1) "b"
2) "c"