#Install Docker on Ubuntu
https://docs.docker.com/engine/getstarted/linux_install_help/
##Complete Installation Instructions for Xenial 16.04
sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
Open text editor with root privileges. Create file:
/etc/apt/sources.list.d/docker.list. Add this line:
deb https://apt.dockerproject.org/repo ubuntu-xenial main
Then:
sudo apt-get update
sudo apt-get install linux-image-extra-$(uname -r) linux-image-extra-virtual
sudo apt-get install docker-engine
sudo service docker start
Verify installation:
sudo docker run hello-world
Optional: create docker group so that docker commands don't have to be run with sudo
sudo groupadd docker
sudo usermod -aG docker $USER
Log out and log back in.
docker run hello-world
###Can get a ready-made cmake and make environment by running:
docker run -it --name learn-make lindsayad/thw:latest
#Getting started with Docker
Create and run new container using Ubuntu image:
docker run --name <name> -it ubuntu bash
Now once inside container, if you want to install packages, first need to run:
apt-get update
Some general set-up:
apt-get install sudo
adduser <username>
usermod -aG sudo <username>
su - <username>
Prepare container for cmake and make tutorials:
sudo apt-get install cmake make
Install either emacs-nox or vim. To exit docker container, just type exit.
We can create a new image from the container we've been playing in. Example:
docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
docker commit -m "Environment with cmake and make." thw
View this new image:
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> 63b712dc4b0a 19 seconds ago 520.4 MB
Let's assign the image some human-readable name:
docker tag 63b712dc4b0a lindsayad/thw:latest
where lindsayad/thw indicates the user is lindsayad and the repository is
thw, and the tag is latest. Example use of tags: the ubuntu repository has
16.04, 14.04, 12.04 tags etc. When pulling an image, if a tag is not
specified, it defaults to latest.
We can then spawn new containers from this image:
docker run -it --name learn-make lindsayad/thw:latest
(If no command is explicitly appended to the image name, the bash command is
automatically assumed).
#Useful Docker commands
To enter running container with new tty:
docker exec -it <container> bash
To enter into stopped docker container:
docker start -ai <container>
Can always get additional information about docker commands with:
docker <cmd> --help
List all containers on the system:
docker ps -a
Remove container (supply either ID or name):
docker rm <container>
Copy files from container to host:
docker cp <containerId>:/file/path/within/container /host/path/target