Docker - Linking Containers

--link name:alias

Where name is the name of the container we're linking to and alias is an alias for the link name.

Создаем контейнер с сервером

vi Dockerfile

FROM centos:centos6

RUN yum -y install mysql-server

RUN touch /etc/sysconfig/network

RUN service mysqld start &&  \
 	sleep 5s && \
	mysql -e "GRANT ALL ON *.* to 'root'@'%'; FLUSH PRIVILEGES" 

EXPOSE 3306
	
CMD ["/usr/bin/mysqld_safe"]


$ docker build -rm -t centos6/mysql_server:v01 .

$ docker run -t -i --name mysql_server 96200d183cc5

============================

Создаем контейнер с клиентом


vi Dockerfile


FROM centos:centos6

RUN yum -y install mysql

CMD ["bash"]


$ docker build -rm -t centos6/mysql_client:v01 .

$ docker run -t -i --link mysql_server:mysql_server 4a173a15faa5


# env
HOSTNAME=71ff5486e03a
TERM=xterm
MYSQL_SERVER_PORT_3306_TCP=tcp://172.17.1.14:3306
MYSQL_SERVER_PORT_3306_TCP_PORT=3306
MYSQL_SERVER_PORT=tcp://172.17.1.14:3306
MYSQL_SERVER_PORT_3306_TCP_ADDR=172.17.1.14
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/
SHLVL=1
HOME=/
MYSQL_SERVER_NAME=/clever_bartik/mysql_server
MYSQL_SERVER_PORT_3306_TCP_PROTO=tcp
_=/usr/bin/env



# cat /etc/hosts
172.17.1.15	71ff5486e03a
127.0.0.1	localhost
::1	localhost ip6-localhost ip6-loopback
fe00::0	ip6-localnet
ff00::0	ip6-mcastprefix
ff02::1	ip6-allnodes
ff02::2	ip6-allrouters
172.17.1.14	mysql_server





Взято:
http://alexecollins.com/docker-linking-containers/


https://docs.docker.com/userguide/dockerlinks/#docker-container-linking