Docker

My docker notes

Install under Windows

• Download "Docker Toolbox" for Windows if your system does not meet the minimum requirements for the native Windows version.
• If you are using a proxy you have two options:
  - set proxy environment variables in your Windows
  - manually download the boot2docker.iso file and place it under "C:Users<user>.dockermachinemachinesdefault"

Commands

docker-system ssh default	Open an SSH terminal session to the boot2docker machine
docker pull <image>	Download a docker image
docker images	Show list of docker images
docker run --name <name> -it <image>	Start image with a custom container name
docker rm <container>	Remove container

Set Proxy in boot2docker

Edit "/var/lib/boot2docker/profile" and add lines like:

   EXTRA_ARGS='
   --label provider=virtualbox

   '
   CACERT=/var/lib/boot2docker/ca.pem
   DOCKER_HOST='-H tcp://0.0.0.0:2376'
   DOCKER_STORAGE=aufs
   DOCKER_TLS=auto
   SERVERKEY=/var/lib/boot2docker/server-key.pem
   SERVERCERT=/var/lib/boot2docker/server.pem

   export http_proxy=http://<proxy>:<port>
   export https_proxy=http://<proxy>:<port>

vSphere

docker plugin install --grant-all-permissions --alias vsphere vmware/docker-volume-vsphere:latest	Install the docker plugin to be able to access vSphere volumes
docker volume create --driver=vsphere --name=MyVolume -o size=10gb	Create volume
docker volume ls	List existing volumes
docker volume rm MyVolume	Remove the volume
docker run --rm -it -v MyVolume:/mnt/myvol busybox	Run a busybox image with the mounted volume

 

• Graphical apps in Docker
  

  Sometimes we get tools that only run in specific distributions of linux, or that need specific libraries we don't have in the current installed release, or we just want to keep our system clean.

  By using Docker we can fulfill all those goals. For backend appliccations it already is done very often but it is also possible to use Docker for graphical apps.

  For example: