Redis是一个开源（BSD许可）的，内存中的数据结构存储系统，它可以用作数据库、缓存和消息中间件。它支持多种类型的数据结构，如 字符串（strings）， 散列（hashes）， 列表（lists）， 集合（sets）， 有序集合（sorted sets） 与范围查询， bitmaps， hyperloglogs 和 地理空间（geospatial） 索引半径查询。 Redis 内置了 复制（replication），LUA脚本（Lua scripting）， LRU驱动事件（LRU eviction），事务（transactions） 和不同级别的 磁盘持久化（persistence）， 并通过 Redis哨兵（Sentinel）和自动 分区（Cluster）提供高可用性（high availability）。
二、安装 1、拉取镜像docker pull redis:latest
拉取之后可通过docker images 查看。
2、初始化配置文件从官方下载网站http://download.redis.io/redis-stable/找到并下载redis.conf文件，以此为模板进行配置并部分参数进行简单说明。
- bind 127.0.0.1 -::1找到该配置并将其注释。
该设置是为了避免redis暴露在互联网环境中引发安全问题，默认绑定只能本机访问。故需要将其注释。
# ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the # internet, binding to all the interfaces is dangerous and will expose the # instance to everybody on the internet. So by default we uncomment the # following bind directive, that will force Redis to listen only on the # IPv4 and IPv6 (if available) loopback interface addresses (this means Redis # will only be able to accept client connections from the same host that it is # running on). # # IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES # COMMENT OUT THE FOLLOWING LINE. # # You will also need to set a password unless you explicitly disable protected # mode. # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ bind 127.0.0.1 -::1
- protected-mode yes找到该配置并将其值设为no。
该处配置则是redis默认开启保护模式，避免在互联网上打开的Redis实例会被访问和利用。当启用保护模式且默认用户没有密码时，服务器仅接受来自IPv4地址（127.0.0.1）、IPv6地址的本地连接（：：1）或Unix域套接字。该设置可视情况而定。
# Protected mode is a layer of security protection, in order to avoid that # Redis instances left open on the internet are accessed and exploited. # # When protected mode is on and the default user has no password, the server # only accepts local connections from the IPv4 address (127.0.0.1), IPv6 address # (::1) or Unix domain sockets. # # By default protected mode is enabled. You should disable it only if # you are sure you want clients from other hosts to connect to Redis # even if no authentication is configured. protected-mode yes
- daemonize no维持默认
该配置为设置redis是否以守护进程运行，如果设置为yes会使得对/var/run/redis.pid配置文件的修改无效。故设置维持默认即可。
# By default Redis does not run as a daemon. Use 'yes' if you need it. # Note that Redis will write a pid file in /var/run/redis.pid when daemonized. # When Redis is supervised by upstart or systemd, this parameter has no impact. daemonize no
- dir ./工作目录设置，维持默认
# The working directory. # # The DB will be written inside this directory, with the filename specified # above using the 'dbfilename' configuration directive. # # The Append Only File will also be created inside this directory. # # Note that you must specify a directory here, not a file name. dir ./
- appendonly no持久化，改为yes
# By default Redis asynchronously dumps the dataset on disk. This mode is # good enough in many applications, but an issue with the Redis process or # a power outage may result into a few minutes of writes lost (depending on # the configured save points). # # The Append Only File is an alternative persistence mode that provides # much better durability. For instance using the default data fsync policy # (see later in the config file) Redis can lose just one second of writes in a # dramatic event like a server power outage, or a single write if something # wrong with the Redis process itself happens, but the operating system is # still running correctly. # # AOF and RDB persistence can be enabled at the same time without problems. # If the AOF is enabled on startup Redis will load the AOF, that is the file # with the better durability guarantees. # # Please check https://redis.io/topics/persistence for more information. appendonly no3、启动容器
docker run --restart=always -p 6379:6379 --name myredis -v /opt/redis_data_docker/redis.conf:/etc/redis/redis.conf -v /opt/redis_data_docker/data:/data -v /etc/localtime:/etc/localtime:ro -d redis redis-server /etc/redis/redis.conf --appendonly yes --requirepass 密码
通过命令docker logs 容器id或容器名查看启动日志。正常即表示容器启动完毕。
