github.com/docker/docker@v299999999.0.0-20200612211812-aaf470eca7b5+incompatible/docs/contributing/software-required.md (about)

     1  ### Get the required software for Linux or macOS
     2  
     3  This page explains how to get the software you need to use a Linux or macOS
     4  machine for Moby development. Before you begin contributing you must have:
     5  
     6  *  a GitHub account
     7  * `git`
     8  * `make`
     9  * `docker`
    10  
    11  You'll notice that `go`, the language that Moby is written in, is not listed.
    12  That's because you don't need it installed; Moby's development environment
    13  provides it for you. You'll learn more about the development environment later.
    14  
    15  ## Task 1. Get a GitHub account
    16  
    17  To contribute to the Moby project, you will need a <a
    18  href="https://github.com" target="_blank">GitHub account</a>. A free account is
    19  fine. All the Moby project repositories are public and visible to everyone.
    20  
    21  You should also have some experience using both the GitHub application and `git`
    22  on the command line.
    23  
    24  ## Task 2. Install git
    25  
    26  Install `git` on your local system. You can check if `git` is on already on your
    27  system and properly installed with the following command:
    28  
    29  ```bash
    30  $ git --version
    31  ```
    32  
    33  This documentation is written using `git` version 2.2.2. Your version may be
    34  different depending on your OS.
    35  
    36  ## Task 3. Install make
    37  
    38  Install `make`. You can check if `make` is on your system with the following
    39  command:
    40  
    41  ```bash
    42  $ make -v
    43  ```
    44  
    45  This documentation is written using GNU Make 3.81. Your version may be different
    46  depending on your OS.
    47  
    48  ## Task 4. Install or upgrade Docker
    49  
    50  If you haven't already, install the Docker software using the
    51  <a href="https://docs.docker.com/engine/installation/" target="_blank">instructions for your operating system</a>.
    52  If you have an existing installation, check your version and make sure you have
    53  the latest Docker.
    54  
    55  To check if `docker` is already installed on Linux:
    56  
    57  ```bash
    58  docker --version
    59  Docker version 17.10.0-ce, build f4ffd25
    60  ```
    61  
    62  On macOS or Windows, you should have installed Docker for Mac or
    63  Docker for Windows.
    64  
    65  ```bash
    66  $ docker --version
    67  Docker version 17.10.0-ce, build f4ffd25
    68  ```
    69  
    70  ## Tip for Linux users
    71  
    72  This guide assumes you have added your user to the `docker` group on your system.
    73  To check, list the group's contents:
    74  
    75  ```
    76  $ getent group docker
    77  docker:x:999:ubuntu
    78  ```
    79  
    80  If the command returns no matches, you have two choices. You can preface this
    81  guide's `docker` commands with `sudo` as you work. Alternatively, you can add
    82  your user to the `docker` group as follows:
    83  
    84  ```bash
    85  $ sudo usermod -aG docker ubuntu
    86  ```
    87  
    88  You must log out and log back in for this modification to take effect.
    89  
    90  
    91  ## Where to go next
    92  
    93  In the next section, you'll [learn how to set up and configure Git for
    94  contributing to Moby](set-up-git.md).