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docker-docs/docker/project/set-up-git/index.html
2017-03-13 17:13:38 -07:00

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<a data-link href="/articles/basics/" class=""> Get started with containers</a>
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<a data-link href="/docker/misc/" class=""> About Docker</a>
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<a data-link href="/docker/examples/running_riak_service/" class=""> Dockerizing a Riak service</a>
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<a data-link href="/articles/cfengine_process_management/" class=""> Process management with CFEngine</a>
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<a data-link href="/docker/examples/mongodb/" class=""> Dockerizing MongoDB</a>
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<a data-link href="/docker-trusted-registry/" class=""> Overview</a>
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<a data-link href="/docker-trusted-registry/support/" class=""> Support</a>
<a data-link href="/docker-trusted-registry/release-notes/" class=""> Release notes</a>
<a data-link href="/docker-trusted-registry/prior-release-notes/" class=""> Prior release notes archive</a>
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<a data-link href="/registry/" class=""> Docker Registry 2.0</a>
<a data-link href="/registry/introduction/" class=""> Understanding the Registry</a>
<a data-link href="/registry/deploying/" class=""> Deploying a registry server</a>
<a data-link href="/registry/configuration/" class=""> Configure a Registry</a>
<a data-link href="/registry/notifications/" class=""> Work with Notifications</a>
<a data-link href="/registry/authentication/" class=""> Authentication for the Registry</a>
<a data-link href="/registry/help/" class=""> Getting help</a>
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<a data-link href="/articles/certificates/" class=""> Using certificates for repository client verification</a>
<a data-link href="/articles/registry_mirror/" class=""> Run a local registry mirror</a>
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<button data-control> Command and API references</button>
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<button data-control> Command line reference</button>
<div data-content>
<a data-link href="/docker/reference/commandline/cli/" class=""> Using the command line</a>
<a data-link href="/docker/reference/commandline/daemon/" class=""> daemon</a>
<a data-link href="/docker/reference/commandline/attach/" class=""> attach</a>
<a data-link href="/docker/reference/commandline/build/" class=""> build</a>
<a data-link href="/docker/reference/commandline/commit/" class=""> commit</a>
<a data-link href="/docker/reference/commandline/cp/" class=""> cp</a>
<a data-link href="/docker/reference/commandline/create/" class=""> create</a>
<a data-link href="/docker/reference/commandline/diff/" class=""> diff</a>
<a data-link href="/docker/reference/commandline/events/" class=""> events</a>
<a data-link href="/docker/reference/commandline/exec/" class=""> exec</a>
<a data-link href="/docker/reference/commandline/export/" class=""> export</a>
<a data-link href="/docker/reference/commandline/history/" class=""> history</a>
<a data-link href="/docker/reference/commandline/images/" class=""> images</a>
<a data-link href="/docker/reference/commandline/import/" class=""> import</a>
<a data-link href="/docker/reference/commandline/info/" class=""> info</a>
<a data-link href="/docker/reference/commandline/inspect/" class=""> inspect</a>
<a data-link href="/docker/reference/commandline/kill/" class=""> kill</a>
<a data-link href="/docker/reference/commandline/load/" class=""> load</a>
<a data-link href="/docker/reference/commandline/login/" class=""> login</a>
<a data-link href="/docker/reference/commandline/logout/" class=""> logout</a>
<a data-link href="/docker/reference/commandline/logs/" class=""> logs</a>
<a data-link href="/docker/reference/commandline/pause/" class=""> pause</a>
<a data-link href="/docker/reference/commandline/port/" class=""> port</a>
<a data-link href="/docker/reference/commandline/ps/" class=""> ps</a>
<a data-link href="/docker/reference/commandline/pull/" class=""> pull</a>
<a data-link href="/docker/reference/commandline/push/" class=""> push</a>
<a data-link href="/docker/reference/commandline/rename/" class=""> rename</a>
<a data-link href="/docker/reference/commandline/restart/" class=""> restart</a>
<a data-link href="/docker/reference/commandline/rm/" class=""> rm</a>
<a data-link href="/docker/reference/commandline/rmi/" class=""> rmi</a>
<a data-link href="/docker/reference/commandline/run/" class=""> run</a>
<a data-link href="/docker/reference/commandline/save/" class=""> save</a>
<a data-link href="/docker/reference/commandline/search/" class=""> search</a>
<a data-link href="/docker/reference/commandline/start/" class=""> start</a>
<a data-link href="/docker/reference/commandline/stats/" class=""> stats</a>
<a data-link href="/docker/reference/commandline/stop/" class=""> stop</a>
<a data-link href="/docker/reference/commandline/tag/" class=""> tag</a>
<a data-link href="/docker/reference/commandline/top/" class=""> top</a>
<a data-link href="/docker/reference/commandline/unpause/" class=""> unpause</a>
<a data-link href="/docker/reference/commandline/version/" class=""> version</a>
<a data-link href="/docker/reference/commandline/wait/" class=""> wait</a>
</div>
</article>
<a data-link href="/docker/reference/run/" class=""> Docker run reference</a>
<a data-link href="/docker/reference/builder/" class=""> Dockerfile reference</a>
<a data-link href="/docker/reference/api/remote_api_client_libraries/" class=""> Remote API client libraries</a>
<a data-link href="/docker/reference/api/docker_io_accounts_api/" class=""> docker.io accounts API</a>
<article data-accordion>
<button data-control> Docker Remote API</button>
<div data-content>
<a data-link href="/docker/reference/api/docker-io_api/" class=""> Docker Hub API</a>
<a data-link href="/docker/reference/api/docker_remote_api/" class=""> Remote API</a>
<a data-link href="/docker/reference/api/docker_remote_api_v1.19/" class=""> Remote API v1.19</a>
<a data-link href="/docker/reference/api/docker_remote_api_v1.18/" class=""> Remote API v1.18</a>
<a data-link href="/docker/reference/api/docker_remote_api_v1.17/" class=""> Remote API v1.17</a>
<a data-link href="/docker/reference/api/docker_remote_api_v1.16/" class=""> Remote API v1.16</a>
<a data-link href="/docker/reference/api/docker_remote_api_v1.15/" class=""> Remote API v1.15</a>
<a data-link href="/docker/reference/api/docker_remote_api_v1.14/" class=""> Remote API v1.14</a>
</div>
</article>
<article data-accordion>
<button data-control> Docker Hub</button>
<div data-content>
<a data-link href="/docker/reference/api/hub_registry_spec/" class=""> The Docker Hub and the Registry v1</a>
</div>
</article>
<article data-accordion>
<button data-control> Docker Compose Reference</button>
<div data-content>
<a data-link href="/compose/cli/" class=""> Compose CLI reference</a>
<a data-link href="/compose/yml/" class=""> docker-compose.yml reference</a>
<a data-link href="/compose/env/" class=""> Compose environment variables reference</a>
</div>
</article>
<a data-link href="" class=""> Docker Machine Reference</a>
<article data-accordion>
<button data-control> Docker Swarm Reference</button>
<div data-content>
<a data-link href="/swarm/api/swarm-api/" class=""> Docker Swarm API</a>
</div>
</article>
<article data-accordion>
<button data-control> Docker Registry Reference</button>
<div data-content>
<a data-link href="/registry/spec/api/" class=""> Docker Registry HTTP API V2</a>
<a data-link href="/registry/storagedrivers/" class=""> Docker Registry Storage Driver</a>
<a data-link href="/registry/spec/auth/token/" class=""> Docker Registry v2 Authentication</a>
</div>
</article>
</div>
</article>
</section>
<section data-accordion>
<article data-accordion>
<button data-control> Open Source at Docker</button>
<div data-content>
<a data-link href="/opensource/how-to-contribute/" class=""> Overview of contributing</a>
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<h1 id="configure-git-for-contributing">Configure Git for contributing</h1>
<p>Work through this page to configure Git and a repository you&rsquo;ll use throughout
the Contributor Guide. The work you do further in the guide, depends on the work
you do here.</p>
<h2 id="fork-and-clone-the-docker-code">Fork and clone the Docker code</h2>
<p>Before contributing, you first fork the Docker code repository. A fork copies
a repository at a particular point in time. GitHub tracks for you where a fork
originates.</p>
<p>As you make contributions, you change your fork&rsquo;s code. When you are ready,
you make a pull request back to the original Docker repository. If you aren&rsquo;t
familiar with this workflow, don&rsquo;t worry, this guide walks you through all the
steps.</p>
<p>To fork and clone Docker:</p>
<ol>
<li><p>Open a browser and log into GitHub with your account.</p></li>
<li><p>Go to the <a href="https://github.com/docker/docker"
target="_blank">docker/docker repository</a>.</p></li>
<li><p>Click the &ldquo;Fork&rdquo; button in the upper right corner of the GitHub interface.</p>
<p><img src="/project/images/fork_docker.png" alt="Branch Signature" />
</p>
<p>GitHub forks the repository to your GitHub account. The original
<code>docker/docker</code> repository becomes a new fork <code>YOUR_ACCOUNT/docker</code> under
your account.</p></li>
<li><p>Copy your fork&rsquo;s clone URL from GitHub.</p>
<p>GitHub allows you to use HTTPS or SSH protocols for clones. You can use the
<code>git</code> command line or clients like Subversion to clone a repository.</p>
<p><img src="/project/images/copy_url.png" alt="Copy clone URL" />
</p>
<p>This guide assume you are using the HTTPS protocol and the <code>git</code> command
line. If you are comfortable with SSH and some other tool, feel free to use
that instead. You&rsquo;ll need to convert what you see in the guide to what is
appropriate to your tool.</p></li>
<li><p>Open a terminal window on your local host and change to your home directory.</p>
<pre><code>$ cd ~
</code></pre></li>
</ol>
<p>In Windows, you&rsquo;ll work in your Boot2Docker window instead of Powershell or
a <code>cmd</code> window.</p>
<ol>
<li><p>Create a <code>repos</code> directory.</p>
<pre><code>$ mkdir repos
</code></pre></li>
<li><p>Change into your <code>repos</code> directory.</p>
<pre><code>$ cd repos
</code></pre></li>
<li><p>Clone the fork to your local host into a repository called <code>docker-fork</code>.</p>
<pre><code>$ git clone https://github.com/moxiegirl/docker.git docker-fork
</code></pre>
<p>Naming your local repo <code>docker-fork</code> should help make these instructions
easier to follow; experienced coders don&rsquo;t typically change the name.</p></li>
<li><p>Change directory into your new <code>docker-fork</code> directory.</p>
<pre><code>$ cd docker-fork
</code></pre>
<p>Take a moment to familiarize yourself with the repository&rsquo;s contents. List
the contents.</p></li>
</ol>
<h2 id="set-your-signature-and-an-upstream-remote">Set your signature and an upstream remote</h2>
<p>When you contribute to Docker, you must certify you agree with the
<a href="http://developercertificate.org/" target="_blank">Developer Certificate of Origin</a>.
You indicate your agreement by signing your <code>git</code> commits like this:</p>
<pre><code>Signed-off-by: Pat Smith &lt;pat.smith@email.com&gt;
</code></pre>
<p>To create a signature, you configure your username and email address in Git.
You can set these globally or locally on just your <code>docker-fork</code> repository.
You must sign with your real name. We don&rsquo;t accept anonymous contributions or
contributions through pseudonyms.</p>
<p>As you change code in your fork, you&rsquo;ll want to keep it in sync with the changes
others make in the <code>docker/docker</code> repository. To make syncing easier, you&rsquo;ll
also add a <em>remote</em> called <code>upstream</code> that points to <code>docker/docker</code>. A remote
is just another project version hosted on the internet or network.</p>
<p>To configure your username, email, and add a remote:</p>
<ol>
<li><p>Change to the root of your <code>docker-fork</code> repository.</p>
<pre><code>$ cd docker-fork
</code></pre></li>
<li><p>Set your <code>user.name</code> for the repository.</p>
<pre><code>$ git config --local user.name &quot;FirstName LastName&quot;
</code></pre></li>
<li><p>Set your <code>user.email</code> for the repository.</p>
<pre><code>$ git config --local user.email &quot;emailname@mycompany.com&quot;
</code></pre></li>
<li><p>Set your local repo to track changes upstream, on the <code>docker</code> repository.</p>
<pre><code>$ git remote add upstream https://github.com/docker/docker.git
</code></pre></li>
<li><p>Check the result in your <code>git</code> configuration.</p>
<pre><code>$ git config --local -l
core.repositoryformatversion=0
core.filemode=true
core.bare=false
core.logallrefupdates=true
remote.origin.url=https://github.com/moxiegirl/docker.git
remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
branch.master.remote=origin
branch.master.merge=refs/heads/master
user.name=Mary Anthony
user.email=mary@docker.com
remote.upstream.url=https://github.com/docker/docker.git
remote.upstream.fetch=+refs/heads/*:refs/remotes/upstream/*
</code></pre>
<p>To list just the remotes use:</p>
<pre><code>$ git remote -v
origin https://github.com/moxiegirl/docker.git (fetch)
origin https://github.com/moxiegirl/docker.git (push)
upstream https://github.com/docker/docker.git (fetch)
upstream https://github.com/docker/docker.git (push)
</code></pre></li>
</ol>
<h2 id="create-and-push-a-branch">Create and push a branch</h2>
<p>As you change code in your fork, make your changes on a repository branch.
The branch name should reflect what you are working on. In this section, you
create a branch, make a change, and push it up to your fork.</p>
<p>This branch is just for testing your config for this guide. The changes are part
of a dry run, so the branch name will be dry-run-test. To create and push
the branch to your fork on GitHub:</p>
<ol>
<li><p>Open a terminal and go to the root of your <code>docker-fork</code>.</p>
<pre><code>$ cd docker-fork
</code></pre></li>
<li><p>Create a <code>dry-run-test</code> branch.</p>
<pre><code>$ git checkout -b dry-run-test
</code></pre>
<p>This command creates the branch and switches the repository to it.</p></li>
<li><p>Verify you are in your new branch.</p>
<pre><code>$ git branch
* dry-run-test
master
</code></pre>
<p>The current branch has an * (asterisk) marker. So, these results shows you
are on the right branch.</p></li>
<li><p>Create a <code>TEST.md</code> file in the repository&rsquo;s root.</p>
<pre><code>$ touch TEST.md
</code></pre></li>
<li><p>Edit the file and add your email and location.</p>
<p><img src="/project/images/contributor-edit.png" alt="Add your information" />
</p>
<p>You can use any text editor you are comfortable with.</p></li>
<li><p>Save and close the file.</p></li>
<li><p>Check the status of your branch.</p>
<pre><code>$ git status
On branch dry-run-test
Untracked files:
(use &quot;git add &lt;file&gt;...&quot; to include in what will be committed)
TEST.md
nothing added to commit but untracked files present (use &quot;git add&quot; to track)
</code></pre>
<p>You&rsquo;ve only changed the one file. It is untracked so far by git.</p></li>
<li><p>Add your file.</p>
<pre><code>$ git add TEST.md
</code></pre>
<p>That is the only <em>staged</em> file. Stage is fancy word for work that Git is
tracking.</p></li>
<li><p>Sign and commit your change.</p>
<pre><code>$ git commit -s -m &quot;Making a dry run test.&quot;
[dry-run-test 6e728fb] Making a dry run test
1 file changed, 1 insertion(+)
create mode 100644 TEST.md
</code></pre>
<p>Commit messages should have a short summary sentence of no more than 50
characters. Optionally, you can also include a more detailed explanation
after the summary. Separate the summary from any explanation with an empty
line.</p></li>
<li><p>Push your changes to GitHub.</p>
<pre><code>$ git push --set-upstream origin dry-run-test
Username for 'https://github.com': moxiegirl
Password for 'https://moxiegirl@github.com':
</code></pre>
<p>Git prompts you for your GitHub username and password. Then, the command
returns a result.</p>
<pre><code>Counting objects: 13, done.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 320 bytes | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
To https://github.com/moxiegirl/docker.git
* [new branch] dry-run-test -&gt; dry-run-test
Branch dry-run-test set up to track remote branch dry-run-test from origin.
</code></pre></li>
<li><p>Open your browser to Github.</p></li>
<li><p>Navigate to your Docker fork.</p></li>
<li><p>Make sure the <code>dry-run-test</code> branch exists, that it has your commit, and the
commit is signed.</p>
<p><img src="/project/images/branch-sig.png" alt="Branch Signature" />
</p></li>
</ol>
<h2 id="where-to-go-next">Where to go next</h2>
<p>Congratulations, you have finished configuring both your local host environment
and Git for contributing. In the next section you&rsquo;ll <a href="/project/set-up-dev-env/">learn how to set up and
work in a Docker development container</a>.</p>
</article>
</section>
</div>
<div id="toc" class="large-3 columns toc ">
On this page:
<nav id="TableOfContents">
<ul>
<li><a href="#configure-git-for-contributing">Configure Git for contributing</a>
<ul>
<li><a href="#fork-and-clone-the-docker-code">Fork and clone the Docker code</a></li>
<li><a href="#set-your-signature-and-an-upstream-remote">Set your signature and an upstream remote</a></li>
<li><a href="#create-and-push-a-branch">Create and push a branch</a></li>
<li><a href="#where-to-go-next">Where to go next</a></li>
</ul></li>
</ul>
</nav>
</div>
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