如何在 dockerfile 中设置 mysql 用户名

Question

当使用 apt-get install mysql-server 在 ubuntu 中安装 mysql 时，安装过程中会询问 mysql 用户名和密码。

但是使用dockerfile构建mysql镜像时，如何提供用户名和密码？

我尝试使用 dockerfile 如下：

FROM ubuntu:14.04
apt-get update
apt-get install -y mysql-server

但是在构建镜像的时候，我发现我们可以在 mysql 中不用用户名和密码登录。

使用dockerfile构建镜像时如何设置用户名和密码？

Answer 1

tutumcloud/mysql

Docker 文件

ADD run.sh /run.sh

ENV MYSQL_USER=admin \
    MYSQL_PASS=**Random** \
    ON_CREATE_DB=**False** \
    REPLICATION_MASTER=**False** \
    REPLICATION_SLAVE=**False** \
    REPLICATION_USER=replica \
    REPLICATION_PASS=replica

run.sh

StartMySQL ()
{
    /usr/bin/mysqld_safe ${EXTRA_OPTS} > /dev/null 2>&1 &
    # Time out in 1 minute
    LOOP_LIMIT=60
    for (( i=0 ; ; i++ )); do
        if [ ${i} -eq ${LOOP_LIMIT} ]; then
            echo "Time out. Error log is shown as below:"
            tail -n 100 ${LOG}
            exit 1
        fi
        echo "=> Waiting for confirmation of MySQL service startup, trying ${i}/${LOOP_LIMIT} ..."
        sleep 1
        mysql -uroot -e "status" > /dev/null 2>&1 && break
    done
}
CreateMySQLUser()
{
    if [ "$MYSQL_PASS" = "**Random**" ]; then
        unset MYSQL_PASS
    fi

    PASS=${MYSQL_PASS:-$(pwgen -s 12 1)}
    _word=$( [ ${MYSQL_PASS} ] && echo "preset" || echo "random" )
    echo "=> Creating MySQL user ${MYSQL_USER} with ${_word} password"

    mysql -uroot -e "CREATE USER '${MYSQL_USER}'@'%' IDENTIFIED BY '$PASS'"
    mysql -uroot -e "GRANT ALL PRIVILEGES ON *.* TO '${MYSQL_USER}'@'%' WITH GRANT OPTION"
    echo "=> Done!"
    echo "========================================================================"
    echo "You can now connect to this MySQL Server using:"
    echo ""
    echo "    mysql -u$MYSQL_USER -p$PASS -h<host> -P<port>"
    echo ""
    echo "Please remember to change the above password as soon as possible!"
    echo "MySQL user 'root' has no password but only allows local connections"
    echo "========================================================================"
}
StartMySQL
CreateMySQLUser

.....对你有帮助

Answer 2

如果你看官方 Docker MySQL 图片 Dockerfile, you will discover how they did it using debconf-set-selections.

如何在 dockerfile 中设置 mysql 用户名

How to set mysql username in dockerfile

mysql

docker

dockerfile