# Docker

!!! Warning
    This page is under construction

[Docker](https://www.docker.com/) is a commercial implementation
of a [container](https://www.docker.com/resources/what-container), a way to package
up a snapshot of everything needed to run some particular version
of software (OS, libraries, compilers, etc.). It is a very effective
way of interfacing with the CMS open data as it gives you the proper
environment you need to analyze these data.

To learn more about Docker in general, from a HEP perspective, you
may want to check out this
[Introduction to Docker](https://awesome-workshop.github.io/intro-to-docker/),
from Matthew Feickert.

To account for the different running conditions in Run 1 vs Run 2, click the appropriate tab below for Run 1 vs Run 2 data.

=== "Run 1 Data"

    * You can find the list of Docker container images available for CMS open data in [the guide page for CMS open data containers](http://opendata.cern.ch/docs/cms-guide-docker)
    * You can also jump right in with the most recent tutorial on [the CMS open data containers](https://cms-opendata-workshop.github.io/workshop2023-lesson-docker/). If the tutorial is for more recent data, make sure to change the container image to correspond to the Run 1 data you intend to analyse.

=== "Run 2 Data"

    * You can find the list of Docker container images available for CMS open data in [the guide page for CMS open data containers](http://opendata.cern.ch/docs/cms-guide-docker)
    * You can also jump right in with the most recent tutorial on [the CMS open data containers](https://cms-opendata-workshop.github.io/workshop2023-lesson-docker/).