Docker (deprecated): Difference between revisions
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{| | {| | ||
|Tag | |Tag || Function | ||
|Function | |||
|- | |- | ||
|-d | |-d || Run in the background | ||
|Run in the background | |||
|- | |- | ||
|-p 1948:8888 | |-p 1948:8888 || Forward port 8888 to 1948 | ||
|Forward port 8888 to 1948 | |||
|- | |- | ||
|--name | |--name || Specify server name | ||
|Specify server name | |||
|- | |- | ||
|-e "PASSWORD=[...]" | |-e "PASSWORD=[...]" || Set password | ||
|Set password | |||
|- | |- | ||
|-e DISPLAY=$DISPLAY | |-e DISPLAY=$DISPLAY || Needed for plotting in Jupyter | ||
|Needed for plotting in Jupyter | |||
|- | |- | ||
|--help | |--help ||Show different tag options for given command | ||
|Show different tag options for given command | |||
|} | |} | ||
Revision as of 10:19, 13 October 2015
What is docker?
Docker is a platform for running virtual machines called containers. These are functionally analogous to the operating systems on a computer, though you can run them from within your operating system. They are useful because they create lightweight, customisable environments within which you can run software. This is particularly helpful when you have programs which have very particular dependencies, or require a linux base installation in order to function correctly. You can read more about docker here.
What do we use docker for?
The Euler group is currently using docker to host our two Jupyter notebook servers, though in the past we have also used it for hosting a MySQL server. To see what containers are currently running, ssh into 'cn31' and enter the command
docker ps
This will return a list of the currently active docker containers, the images they are built from, how long they have been online and what ports they are forwarded to. New docker containers can be built using the command
docker run [...]
For example, to build a new scipyserver called 'miranda', forwarded to port 1948 on localhost with the password 'uranus', you would enter
docker run -d -p 1948:8888 --name miranda -e "PASSWORD=uranus" -e DISPLAY=$DISPLAY
. Each of the -tags has a unique function in building the server.
| Tag | Function |