How to Install mysql-server via dockerfile - mysql

Question

Does anybody knows how to install mysql-server via dockerfile? I have written a Dockerfile, but the build ends with an error: /bin/sh: 1: /usr/bin/mysqld: not found
USER root
RUN apt-get update
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y mysql-server-5.7
# Remove pre-installed database
RUN rm -rf /var/lib/mysql/*
RUN sed -i -e"s/^bind-address\s*=\s*127.0.0.1/bind-address = 0.0.0.0/"/etc/mysql/my.cnf
ENV DB_USER example
ENV DB_PASSWORD example
ENV DB_NAME example
ENV VOLUME_HOME "/var/lib/mysql"
EXPOSE 3306
RUN cp /etc/mysql/my.cnf /usr/share/mysql/my-default.cnf
RUN /usr/bin/mysqld && sleep 5 && \
mysql -uroot -e "CREATE USER '${DB_USER}'#'%' IDENTIFIED BY '${DB_PASSWORD}'" && \
mysql -uroot -e "GRANT ALL PRIVILEGES ON *.* TO '${DB_USER}'#'%' WITH GRANT OPTION" &&\
mysql -uroot -e "CREATE DATABASE ${DB_NAME}" && \
mysqladmin -uroot shutdown

Answer 1

For an ubuntu:16.04 base image, mysqld is found in /usr/sbin, not /usr/bin
If you can add a step RUN which mysqld before your final RUN command that will show you where the mysqld executable is found. It may vary depending on which base image/distro you're using.
You can also use RUN mysqld ... without a full path, if the file is in your $PATH
You may also need to update your RUN sed line as below, adding spaces around the quoted string:
RUN sed -i -e "s/^bind-address\s*=\s*127.0.0.1/bind-address = 0.0.0.0/" /etc/mysql/my.cnf
Otherwise, you may see the following error:
The command '/bin/sh -c sed -i -e"s/^bind-address\s*=\s*127.0.0.1/bind-address = 0.0.0.0/"/etc/mysql/my.cnf' returned a non-zero code: 1