gintsgints/create_docker_machine_ssh.md

## create_docker_machine_ssh.md

      
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              create_docker_machine_ssh.md
            
          
    How to connect Linux (CentOS) host as Docker machine

Configure buildmachine to access host

At remote machine create gitlab-runner user.
sudo useradd gitlab-runner
sudo passwd gitlab-runner

For initial process I add gitlab-runner user to sudoers with no password.
sudo vim /etc/sudoers
# Insert row:
gitlab-runner ALL=(root) NOPASSWD: ALL

At buildmachine configure ssh key access:
sudo su - gitlab-runner
ssh-copy-id gitlab-runner@<remote_machine_name>

Install docker at remote host

$ sudo yum update
$ sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF
$ sudo yum install docker-engine
$ sudo service docker start

Create docker machine from buildmachine

as gitlab-runner user:
sudo su - gitlab-runner
docker-machine -D create --driver generic --generic-ip-address=<IP.ADR.HERE.GO> --generic-ssh-key ~/.ssh/id_rsa --generic-ssh-user=gitlab-runner <remote_host_name>