CentOS7+Docker+Redis3环境搭建

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创建一个redis docker容器

首先，我们先为redis创建一个Dockerfile文件和fix-permissions.sh文件

Dockerfile：

# "ported" by Adam Miller <maxamillion@fedoraproject.org> from#   https://github.com/fedora-cloud/Fedora-Dockerfiles## Originally written for Fedora-Dockerfiles by#   Aditya Patawari <adimania@fedoraproject.org>FROM centos:centos7MAINTAINER The CentOS Project <cloud-ops@centos.org>RUN yum -y update; yum clean allRUN yum -y install epel-release; yum clean allRUN yum -y install redis; yum clean allEXPOSE 6379# log on stdout instead of writing to fileRUN sed -i 's/^\(logfile\s*\).*$/\1""/g' /etc/redis.conf# Fix permissions to allow for running on openshiftCOPY fix-permissions.sh ./RUN ./fix-permissions.sh /var/log/redis/ && \    ./fix-permissions.sh /var/lib/redis/# By default will run as random user on openshift and the redis user (997)# everywhere elseUSER 997ENTRYPOINT ["redis-server"]CMD ["/etc/redis.conf", "--bind", "0.0.0.0"]

Dockerfile相关教程地址（官方GitHub地址）Dockerfile

fix-permissions.sh：(记得给文件加上执行权限（sudo chmod +x fix-permissions.sh）)

<span style="font-size:18px;">#!/bin/sh# Taken from https://raw.githubusercontent.com/openshift/sti-base/master/bin/fix-permissions# Fix permissions on the given directory to allow group read/write of # regular files and execute of directories.chgrp -R 0 $1chmod -R g+rw $1find $1 -type d -exec chmod g+x {} +</span>

接着,构建镜像

<span style="font-size:18px;">docker build -t centos7/redis:centos7 .</span>

查看镜像是否安装成功

到此，redis的镜像就已经安装成功了。

运行实例

docker run -d -p 6379:6379 centos7/redis:centos7

创建多实例

docker run -d -p 6479:6479 centos7/redis:centos7

进入容器

先查询出Pid是什么：

 docker inspect --format "{{ .State.Pid}}" <container-id>

然后通过得到的Pid执行

 nsenter --target 6537 --mount --uts --ipc --net --pid

进入到容器里面；

直接通过输入：redis-cli就可以连上redis了。

[root@localhost ~]# docker inspect --format "{{ .State.Pid}}" e5a90a839f406537[root@localhost ~]# nsenter --target 6537 --mount --uts --ipc --net --pid[root@e5a90a839f40 /]# redis-cli127.0.0.1:6379>

安装就到这里了，怎么用，在下一篇博客再继续说！

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