Create a docker image that supports SSH

Docker container run, generally cannot ssh, this container management brings trouble, below will explain how to create a docker image that supports SSH

Download the Ubuntu image from the dock hub first

Command: Docker pull Ubuntu

Create a new Ssh_ubuntu directory

Mkdir/ssh_ubuntu

Cd/ssh_ubuntu; Touch Dockerfile

VI Dockerfile

Dockerfile Content

From Ubuntu
Maintainer Lincoln_zhong
RUN apt-get Update
RUN apt-get install-y openssh-server sudo
RUN mkdir-p/var/run/sshd
RUN Sed-ri ' s/session required pam_loginuid.so/#session required pam_loginuid.so/g '/etc/pam.d/sshd
RUN Useradd Admin
RUN echo "Admin:admin" | chpasswd
RUN echo "admin all= (All) all" >>/etc/sudoers
EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]

Cd/ssh_ubuntu. Run Docker build-t Ssh_ubuntu. #ssh_ubuntu是镜像名称

Running Docker images

Run a Container test command: Docker run-d--name ssh_ubuntu_test-p 0.0.0.0:10000:22 Ssh_ubuntu

Command parsing

-D is started in daemon mode

--name Defining container Names

-P is a port that defines ports (above this means that 10000 ports on the local host (host) are mapped to the 22 ports of the container

Container ssh_ubuntu_test run successfully, SSH login to the container Test command: SSH admin@ host ip-p 10000 I'm here for 10.10.1.181.

SSH admin@10.10.1.181-p 10000

Test success

CentOS-built container dockerfile content for SSH support

# Select an existing OS image as the basis
From CentOS

# The author of the image
Maintainer LINCOLN ZHONG

# Install the Openssh-server and sudo packages and set the sshd usepam parameter to No
RUN Yum install-y openssh-server sudo
RUN sed-ir ' s/usepam yes/usepam no/g '/etc/ssh/sshd_config

# Add test user admin, Password Admin, and add this user to Sudoers
RUN Useradd Admin
RUN echo "Admin:admin" | chpasswd
RUN echo "admin all= (All) all" >>/etc/sudoers

# The following two sentences are more special, must have on the CENTOS6, otherwise created by the container sshd cannot log on
RUN ssh-keygen-t dsa-f/etc/ssh/ssh_host_dsa_key
RUN ssh-keygen-t rsa-f/etc/ssh/ssh_host_rsa_key

# Start the sshd service and expose 22 ports
RUN mkdir/var/run/sshd
EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]

This article is from the "Last Night Rain Wind Sudden" blog, please be sure to keep this source http://zxx287856774.blog.51cto.com/3417296/1664682