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    Docker 安装 MySQL

    方法一、docker pull mysql

    查找Docker Hub上的mysql镜像

    axihe@axihe:/mysql$ docker search mysql
    NAME                     DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
    mysql                    MySQL is a widely used, open-source relati...   2529      [OK]       
    mysql/mysql-server       Optimized MySQL Server Docker images. Crea...   161                  [OK]
    centurylink/mysql        Image containing mysql. Optimized to be li...   45                   [OK]
    sameersbn/mysql                                                          36                   [OK]
    google/mysql             MySQL server for Google Compute Engine          16                   [OK]
    appcontainers/mysql      Centos/Debian Based Customizable MySQL Con...   8                    [OK]
    marvambass/mysql         MySQL Server based on Ubuntu 14.04              6                    [OK]
    drupaldocker/mysql       MySQL for Drupal                                2                    [OK]
    azukiapp/mysql           Docker image to run MySQL by Azuki - http:...   2                    [OK]
    ...
    
    

    这里我们拉取官方的镜像,标签为5.6

    axihe@axihe:~/mysql$ docker pull mysql:5.6
    

    等待下载完成后,我们就可以在本地镜像列表里查到REPOSITORY为mysql,标签为5.6的镜像。

    axihe@axihe:~/mysql$ docker images |grep mysql
    mysql               5.6                 2c0964ec182a        3 weeks ago         329 MB
    
    

    方法二、通过 Dockerfile构建

    创建Dockerfile

    首先,创建目录mysql,用于存放后面的相关东西。

    axihe@axihe:~$ mkdir -p ~/mysql/data ~/mysql/logs ~/mysql/conf
    

    data目录将映射为mysql容器配置的数据文件存放路径

    logs目录将映射为mysql容器的日志目录

    conf目录里的配置文件将映射为mysql容器的配置文件

    进入创建的mysql目录,创建Dockerfile

    FROM debian:jessie
    
    # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
    RUN groupadd -r mysql && useradd -r -g mysql mysql
    
    # add gosu for easy step-down from root
    ENV GOSU_VERSION 1.7
    RUN set -x \
        && apt-get update && apt-get install -y --no-install-recommends ca-certificates wget && rm -rf /var/lib/apt/lists/* \
        && wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
        && wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).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 ca-certificates wget
    
    RUN mkdir /docker-entrypoint-initdb.d
    
    # FATAL ERROR: please install the following Perl modules before executing /usr/local/mysql/scripts/mysql_install_db:
    # File::Basename
    # File::Copy
    # Sys::Hostname
    # Data::Dumper
    RUN apt-get update && apt-get install -y perl pwgen --no-install-recommends && rm -rf /var/lib/apt/lists/*
    
    # gpg: key 5072E1F5: public key "MySQL Release Engineering " imported
    RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys A4A9406876FCBD3C456770C88C718D3B5072E1F5
    
    ENV MYSQL_MAJOR 5.6
    ENV MYSQL_VERSION 5.6.31-1debian8
    
    RUN echo "deb http://repo.mysql.com/apt/debian/ jessie mysql-${MYSQL_MAJOR}" > /etc/apt/sources.list.d/mysql.list
    
    # the "/var/lib/mysql" stuff here is because the mysql-server postinst doesn't have an explicit way to disable the mysql_install_db codepath besides having a database already "configured" (ie, stuff in /var/lib/mysql/mysql)
    # also, we set debconf keys to make APT a little quieter
    RUN { \
            echo mysql-community-server mysql-community-server/data-dir select ''; \
            echo mysql-community-server mysql-community-server/root-pass password ''; \
            echo mysql-community-server mysql-community-server/re-root-pass password ''; \
            echo mysql-community-server mysql-community-server/remove-test-db select false; \
        } | debconf-set-selections \
        && apt-get update && apt-get install -y mysql-server="${MYSQL_VERSION}" && rm -rf /var/lib/apt/lists/* \
        && rm -rf /var/lib/mysql && mkdir -p /var/lib/mysql /var/run/mysqld \
        && chown -R mysql:mysql /var/lib/mysql /var/run/mysqld \
    # ensure that /var/run/mysqld (used for socket and lock files) is writable regardless of the UID our mysqld instance ends up having at runtime
        && chmod 777 /var/run/mysqld
    
    # comment out a few problematic configuration values
    # don't reverse lookup hostnames, they are usually another container
    RUN sed -Ei 's/^(bind-address|log)/#&/' /etc/mysql/my.cnf \
        && echo 'skip-host-cache\nskip-name-resolve' | awk '{ print } $1 == "[mysqld]" && c == 0 { c = 1; system("cat") }' /etc/mysql/my.cnf > /tmp/my.cnf \
        && mv /tmp/my.cnf /etc/mysql/my.cnf
    
    VOLUME /var/lib/mysql
    
    COPY docker-entrypoint.sh /usr/local/bin/
    RUN ln -s usr/local/bin/docker-entrypoint.sh /entrypoint.sh # backwards compat
    ENTRYPOINT ["docker-entrypoint.sh"]
    
    EXPOSE 3306
    CMD ["mysqld"]
    
    

    通过Dockerfile创建一个镜像,替换成你自己的名字

    axihe@axihe:~/mysql$ docker build -t mysql .
    

    创建完成后,我们可以在本地的镜像列表里查找到刚刚创建的镜像

    axihe@axihe:~/mysql$ docker images |grep mysql
    mysql               5.6                 2c0964ec182a        3 weeks ago         329 MB
    
    

    使用mysql镜像

    运行容器

    axihe@axihe:~/mysql$ docker run -p 3306:3306 --name mymysql -v $PWD/conf:/etc/mysql/conf.d -v $PWD/logs:/logs -v $PWD/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.6
    21cb89213c93d805c5bacf1028a0da7b5c5852761ba81327e6b99bb3ea89930e
    axihe@axihe:~/mysql$ 
    

    命令说明:

    • -p 3306:3306:将容器的 3306 端口映射到主机的 3306 端口。

    • -v $PWD/conf:/etc/mysql/conf.d:将主机当前目录下的 conf/my.cnf 挂载到容器的 /etc/mysql/my.cnf。

    • -v $PWD/logs:/logs:将主机当前目录下的 logs 目录挂载到容器的 /logs。

    • -v $PWD/data:/var/lib/mysql :将主机当前目录下的data目录挂载到容器的 /var/lib/mysql 。

    • **-e MYSQL_ROOT_PASSWORD=123456:**初始化 root 用户的密码。

    查看容器启动情况

    axihe@axihe:~/mysql$ docker ps 
    CONTAINER ID    IMAGE         COMMAND                  ...  PORTS                    NAMES
    21cb89213c93    mysql:5.6    "docker-entrypoint.sh"    ...  0.0.0.0:3306->3306/tcp   mymysql
    

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