Docker is a software container solution used to provide operating-system-level virtualization. It is possible for all OpenMTC components to run within a Docker container. To make this possible, a script is provided to allow a user to build Docker container images. Be aware that during the build process the build machine has to have access to the Internet, since various Docker container image dependencies are pulled. For a general introduction to Docker, see: Get Started with Docker.
For the build script to work, Docker needs to be installed. There are two different approaches to installing Docker on your system.
Use the first method whenever your OS package manager provides a more recent of Docker. If this not the case, e.g. in Ubuntu 14.04, use the second approach to install Docker.
# Install docker on Debian-like systems sudo apt-get -y install docker.io # Prepare a user for non-root access to Docker # If above installation did not create a 'docker' group, you may add # it manually. Afterwards, you need to restart Docker for that sudo groupadd docker sudo service docker restart # Add a specific user to user group 'docker' sudo usermod -aG docker USER_NAME # Be sure to logoff and login that user, to make the group change to # kick in # Check if Docker runs properly, by using various docker commands, e.g. docker images docker ps # Use the Docker build commands in the next section for further # testing, if above commands were working properly. If in the next # section Docker does not work properly, see below description. # If Docker does not work properly yet, try to restart it sudo systemctl stop docker sudo ip link set down docker0 sudo ip link set up docker0 sudo systemctl start docker # Still, not? Is routing configured correctly? Maybe try: sudo ip r add 172.17.0.0/16 dev docker0
Use this particularly for Ubuntu 14.04.
Downloads an installation script and executes it Be aware that within the script `sudo` is called curl -sSL https://get.docker.com | sh Prepare your user account to use docker command 1. Add the specified user to user group 'docker' sudo usermod -aG docker USER_NAME 2. Logout and re-login to the system so that the user account changes can "kick-in"