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Last pushed: 2 years ago
Short Description
Simple CentOS docker image with SSH access
Full Description


Simple CentOS docker image with SSH access


To create the image tutum/centos with one tag per CentOS release, execute the following commands on the tutum-ubuntu repository folder:

docker build -t tutum/centos:latest .
docker build -t tutum/centos:centos5 centos5
docker build -t tutum/centos:centos6 centos6
docker build -t tutum/centos:centos7 centos7

Running tutum/centos

Run a container from the image you created earlier binding it to port 2222 in all interfaces:

sudo docker run -d -p tutum/centos

The first time that you run your container, a random password will be generated
for user root. To get the password, check the logs of the container by running:

docker logs <CONTAINER_ID>

You will see an output like the following:

You can now connect to this CentOS container via SSH using:

    ssh -p <port> root@<host>
and enter the root password 'U0iSGVUCr7W3' when prompted

Please remember to change the above password as soon as possible!

In this case, U0iSGVUCr7W3 is the password allocated to the root user.


Setting a specific password for the root account

If you want to use a preset password instead of a random generated one, you can
set the environment variable ROOT_PASS to your specific password when running the container:

docker run -d -p -e ROOT_PASS="mypass" tutum/centos

Adding SSH authorized keys

If you want to use your SSH key to login, you can use the AUTHORIZED_KEYS environment variable. You can add more than one public key separating them by ,:

docker run -d -p 2222:22 -e AUTHORIZED_KEYS="`cat ~/.ssh/`" tutum/centos
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