Docker使用supervisor启动Mysql
在使用Docker的时候常常会遇到单个Docker容器启动多个服务时非常困难，比如我需要在单个Docker容器中启动SSH和Mysql，会遇到mysql启动成功但是没有SSH功能或有SSH功能mysql无法启动成功。那么我们用什么方式来解决这种问题呢？supervisor完美的解决了我们问题，接下来看一下如何利用supervisor启动带有SSH功能的Mysql。１．cetnos基础镜像 构建ssh-supervisor下载地址：docker pull aarongo/centos-ssh-supervisor另附dockerfile:?
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FROM centos:centos6
MAINTAINERaaron "aaron.docker@gmail.com"
#Install supervisor
RUN rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
RUN yum -y update&& yum -y install python-pip && /usr/bin/pip install supervisor
RUN mkdir -p /etc/supervisor/conf.d && mkdir -p /var/log/supervisor
COPY supervisord.conf /etc/supervisord.conf
VOLUME /var/log/supervisor
#install sshd
RUN yum install -y openssh-server && sed -i 's/UsePAM yes/UsePAM no/g' /etc/ssh/sshd_config
# select root pasword
RUN echo "root:pasword" | chpasswd && echo "root ALL=(ALL) ALL" >> /etc/sudoers
RUN ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key && ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
RUN mkdir /var/run/sshd
EXPOSE 22
CMD ["/usr/bin/supervisord"]
运行方式:?
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docker run -d -p <localhostport>:<Containerport> aarongo/centos-ssh-supervisor
#or
docker run -it -p <localhostport>:<Containerport> aarongo/centos-ssh-supervisor
2.构建以ssh-supervisor为基础的mysql下载地址：?
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docker pull aarongo/centos-mysql-supervisor
Dockerfile:?
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FROM aarongo/centos-ssh-supervisor
MAINTAINERaaron "aaron.docker@gmail.com"
RUNyum install -y mysql-server mysql
RUN /etc/init.d/mysqld start &&\
mysql -e "grant all privileges on *.* to 'user'@'%' identified by 'password';"&&\
mysql -e "grant all privileges on *.* to 'user'@'localhost' identified by 'password';"&&\
mysql -u user -ppassword -e "show databases;"
COPY supervisord.conf /etc/supervisord.conf
VOLUME ["/mysqldata"]
EXPOSE 22 3306
CMD ["/usr/bin/supervisord"]
#VOLUME 选项是将本地的目录挂在到容器中 此处要注意：当你运行-v ＜hostdir>:<Containerdir> 时要确保目录内容相同否则会出现数据丢失
运行方式：?
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docker run -p ＜localport>:<container 22> -p <localprot>:<container 3306> -it -v /mysqldata:/var/lib/mysql aarongo/centos-mysql-supervisor
#or
docker run -d -p ＜localport>:<container 22> -p <localprot>:<container 3306> -v /mysqldata:/var/lib/mysql aarongo/centos-mysql-supervisor
如果运行成功：?
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2014-11-26 03:55:27,487 INFO success: sshd entered RUNNING state, process has stayed up for > than 1 stsecs)
2014-11-26 03:55:27,487 INFO success: mysqld entered RUNNING state, process has stayed up for > th
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