Docker 安装 Redis

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Docker 安装 Redis

2023-06-07 07:14| 来源: 网络整理| 查看: 265

Redis 是当下最流行的 NoSQL key-value 缓存数据库之一,Docker 安装 Redis 的方式有两种

如果你是 Docker 初学者,如果你以后长期使用 Redis ,我们建议你两种方法都试一试,为什么呢?

原因很简单,第一种方法,简单快捷,第二种方法,就是尝试自己编译安装

1. docker在线安装redis[docker pull redis]

如果想以最简单的方式安装 Redis, 可以直接使用 docker pull redis 命令

流程如下

查找 Docker Hub 上的 redis 镜像 [root@localhost ~]# docker search redis NAME ... OFFICIAL ... redis ... [OK] ...

列表很多,我们推荐你使用 OFFICIAL = OK 的那条

拉取官方最新的 Redis 镜像 [root@localhost ~]# docker pull redis Using default tag: latest ... 稍等片刻,下载完成后就可以在本地镜像列表里看到 redis 的镜像了 [root@localhost apache]# docker images redis REPOSITORY TAG IMAGE ID CREATED SIZE redis latest bfcb1f6df2db 3 weeks ago 106.7 MB 2. docker离线安装redis[通过 Dockerfile 文件构建]

这种方式复杂一些,但因为是编写脚本,所以我们知道如何去编译安装 Redis

创建目录 redis ,用于存放后面的相关东西 [root@localhost ~]# mkdir -p ~/redis/data 目录说明redis该目录存放 Dockerfile 文件和 db 数据库目录data该将映射为 redis 容器配置的 /data 目录,作为 redi s数据持久化的存储目录进入创建的 redis 目录,创建文件 docker-entrypoint.sh [root@localhost ~]# cd redis [root@localhost redis] touch docker-entrypoint.sh [root@localhost redis] chmod +x docker-entrypoint.sh [root@localhost redis] vi docker-entrypoint.sh

复制粘贴以下内容:

# !/bin/sh # 注意上一行去掉 # ! 之间的空格 set -e # first arg is -f or --some-option # or first arg is something.conf if [ "${1#-}" != "$1" ] || [ "${1%.conf}" != "$1" ]; then set -- redis-server "$@" fi # allow the container to be started with --user if [ "$1" = 'redis-server' -a "$(id -u)" = '0' ]; then chown -R redis . exec gosu redis "$0" "$@" fi exec "$@" 创建文件 Dockerfile [root@localhost redis] vi Dockerfile

然后复制粘贴以下内容

FROM debian:jessie-slim # 添加组和用户 RUN groupadd -r redis && useradd -r -g redis redis # grab gosu for easy step-down from root # https://github.com/tianon/gosu/releases ENV GOSU_VERSION 1.10 RUN set -ex; fetchDeps='ca-certificates wget'; apt-get update; apt-get install -y --no-install-recommends $fetchDeps; rm -rf /var/lib/apt/lists/*; dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch"; wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc"; export GNUPGHOME="$(mktemp -d)"; gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc; chmod +x /usr/local/bin/gosu; gosu nobody true; apt-get purge -y --auto-remove $fetchDeps ENV REDIS_VERSION 3.2.11 ENV REDIS_DOWNLOAD_URL http://download.redis.io/releases/redis-3.2.11.tar.gz ENV REDIS_DOWNLOAD_SHA 31ae927cab09f90c9ca5954aab7aeecc3bb4da6087d3d12ba0a929ceb54081b5 # for redis-sentinel see: http://redis.io/topics/sentinel RUN set -ex; buildDeps=' wget gcc libc6-dev make '; apt-get update; apt-get install -y $buildDeps --no-install-recommends; rm -rf /var/lib/apt/lists/*; wget -O redis.tar.gz "$REDIS_DOWNLOAD_URL"; echo "$REDIS_DOWNLOAD_SHA *redis.tar.gz" | sha256sum -c -; mkdir -p /usr/src/redis; tar -xzf redis.tar.gz -C /usr/src/redis --strip-components=1; rm redis.tar.gz; # disable Redis protected mode [1] as it is unnecessary in context of Docker # (ports are not automatically exposed when running inside Docker, but rather explicitly by specifying -p / -P) # [1]: https://github.com/antirez/redis/commit/edd4d555df57dc84265fdfb4ef59a4678832f6da grep -q '^#define CONFIG_DEFAULT_PROTECTED_MODE 1$' /usr/src/redis/src/server.h; sed -ri 's!^(#define CONFIG_DEFAULT_PROTECTED_MODE) 1$!1 0!' /usr/src/redis/src/server.h; grep -q '^#define CONFIG_DEFAULT_PROTECTED_MODE 0$' /usr/src/redis/src/server.h; # for future reference, we modify this directly in the source instead of just supplying a default configuration flag because apparently "if you specify any argument to redis-server, [it assumes] you are going to specify everything" # see also https://github.com/docker-library/redis/issues/4#issuecomment-50780840 # (more exactly, this makes sure the default behavior of "save on SIGTERM" stays functional by default) make -C /usr/src/redis -j "$(nproc)"; make -C /usr/src/redis install; rm -r /usr/src/redis; apt-get purge -y --auto-remove $buildDeps RUN mkdir /data && chown redis:redis /data VOLUME /data WORKDIR /data COPY docker-entrypoint.sh /usr/local/bin/ ENTRYPOINT ["docker-entrypoint.sh"] EXPOSE 6379 CMD ["redis-server"] 使用 docker build 命令通过 Dockerfile 创建一个镜像 ms-redis:3.2.11 [root@localhost redis]# docker build -t ms-redis:3.2.11 . Sending build context to Docker daemon 5.632 kB .... 创建完成后,就可以在本地的镜像列表里查找到刚刚创建的镜像 [root@localhost redis]# docker images ms-redis REPOSITORY TAG IMAGE ID CREATED SIZE ms-redis 3.2.11 4b37d6f6199e 11 days ago 98.94 MB 3.运行容器

可以使用 docker run -dit 命令来运行我们刚刚创建的 ms-redis 镜像

[root@localhost redis]# docker run -p 6379:6379 -v $PWD/data:/data -d ms-redis:3.2.11 redis-server --appendonly yes c929419b17cfc433265fcd13fd2e6a56f94521082f5b5641983aad41cdb0f212

命令说明

-p 6379:6379

将容器的 6379 端口映射到主机的 6379 端口

-v $PWD/data:/data

将主机中当前目录下的 data 挂载到容器的 /data

redis-server --appendonly yes

在容器执行 redis-server 启动命令,并打开 redis 持久化配置

4.查看容器启动情况

使用 docker ps -a 看一下刚刚的 ms-redis 启动情况

[root@localhost redis]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c929419b17cf ms-redis:3.2.11 "docker-entrypoint.sh" 11 days ago Up 54 seconds 0.0.0.0:6379->6379/tcp ecstatic_keller 5.查看容器的 IP

可以使用命令 docker inspect 查看容器的 IP

docker inspect --format '{{ .NetworkSettings.IPAddress }}'

例如可以使用下面的命令查看刚刚创建的容器的 IP

[root@localhost mongo]# docker inspect --format '{{ .NetworkSettings.IPAddress }}' c929419b17cf 172.17.0.2 6.连接、查看 Redis 容器

可以使用 redis 镜像执行 redis-cli 命令连接到刚启动的容器,主机 IP 为 172.17.0.2

[root@localhost mongo]# docker run -it ms-redis:3.2.11 redis-cli -h 172.17.0.2 172.17.0.2:6379> info # Server redis_version:3.2.11 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:9f71ab69a5226d40 redis_mode:standalone os:Linux 4.4.27-moby x86_64 arch_bits:64 multiplexing_api:epoll gcc_version:4.9.2 process_id:1 run_id:757444b615f3e9152e42da031b038547b0e38853 tcp_port:6379 uptime_in_seconds:389 uptime_in_days:0 hz:10 lru_clock:16706141 executable:/data/redis-server config_file: # Clients connected_clients:1 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:0 # Memory used_memory:822408


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