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| <blockquote> |
| <div></div></blockquote> |
| <div class="section" id="using-the-command-line-interface"> |
| <h1>Using the Command Line Interface<a class="headerlink" href="#using-the-command-line-interface" title="Permalink to this headline">¶</a></h1> |
| <p>This document is meant to give an overview of all common tasks while using the CLI.</p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>For more information on CLI commands, see <a class="reference internal" href="../cli.html"><span class="doc">Command Line Interface Reference</span></a></p> |
| </div> |
| <div class="section" id="set-up-connection-to-a-remote-airflow-instance"> |
| <h2>Set Up connection to a remote Airflow instance<a class="headerlink" href="#set-up-connection-to-a-remote-airflow-instance" title="Permalink to this headline">¶</a></h2> |
| <p>For some functions the CLI can use the REST API. To configure the CLI to use the API |
| when available configure as follows:</p> |
| <div class="highlight-ini notranslate"><div class="highlight"><pre><span></span><span class="k">[cli]</span> |
| <span class="na">api_client</span> <span class="o">=</span> <span class="s">airflow.api.client.json_client</span> |
| <span class="na">endpoint_url</span> <span class="o">=</span> <span class="s">http://<WEBSERVER>:<PORT></span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="set-up-bash-zsh-completion"> |
| <h2>Set Up Bash/Zsh Completion<a class="headerlink" href="#set-up-bash-zsh-completion" title="Permalink to this headline">¶</a></h2> |
| <p>When using bash (or <code class="docutils literal notranslate"><span class="pre">zsh</span></code>) as your shell, <code class="docutils literal notranslate"><span class="pre">airflow</span></code> can use |
| <a class="reference external" href="https://argcomplete.readthedocs.io/">argcomplete</a> for auto-completion.</p> |
| <p>For <a class="reference external" href="https://github.com/kislyuk/argcomplete#activating-global-completion">global activation</a> of all argcomplete enabled python applications run:</p> |
| <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>sudo activate-global-python-argcomplete |
| </pre></div> |
| </div> |
| <p>For permanent (but not global) airflow activation, use:</p> |
| <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>register-python-argcomplete airflow >> ~/.bashrc |
| </pre></div> |
| </div> |
| <p>For one-time activation of argcomplete for airflow only, use:</p> |
| <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="nb">eval</span> <span class="s2">"</span><span class="k">$(</span>register-python-argcomplete airflow<span class="k">)</span><span class="s2">"</span> |
| </pre></div> |
| </div> |
| <img alt="../_images/cli_completion.gif" src="../_images/cli_completion.gif" /> |
| <p>If you’re using <code class="docutils literal notranslate"><span class="pre">zsh</span></code>, add the following to your <code class="docutils literal notranslate"><span class="pre">.zshrc</span></code>:</p> |
| <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>autoload bashcompinit |
| bashcompinit |
| <span class="nb">eval</span> <span class="s2">"</span><span class="k">$(</span>register-python-argcomplete airflow<span class="k">)</span><span class="s2">"</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="creating-a-connection"> |
| <h2>Creating a Connection<a class="headerlink" href="#creating-a-connection" title="Permalink to this headline">¶</a></h2> |
| <p>For information on creating connection using CLI, see <a class="reference internal" href="../cli.html#cli"><span class="std std-ref">Command Line Interface Reference</span></a></p> |
| </div> |
| <div class="section" id="exporting-dags-structure-to-images"> |
| <h2>Exporting DAGs structure to images<a class="headerlink" href="#exporting-dags-structure-to-images" title="Permalink to this headline">¶</a></h2> |
| <p>The application has the functionality of saving DAG to image file. You can attach them to the documentation |
| for the documentation, or send another without having to send the DAG file and install the application at |
| the other person. However, you need to have <a class="reference external" href="https://graphviz.gitlab.io/download/">Graphviz</a> installed.</p> |
| <p>For example, if you want to export <code class="docutils literal notranslate"><span class="pre">example_complex</span></code> DAG then you can use the following command:</p> |
| <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>airflow dag show example_complex |
| </pre></div> |
| </div> |
| <p>After passing the <code class="docutils literal notranslate"><span class="pre">dag_id</span></code> parameter itself, the command will print rendered DAG structure (similar to <a class="reference internal" href="../ui.html#ui-graph-view"><span class="std std-ref">Graph View</span></a>) |
| to the screen in the DOT format.</p> |
| <p>It is possible to save the file in a different format. To do this, add the switch <code class="docutils literal notranslate"><span class="pre">--save</span> <span class="pre">[filename].[format]</span></code>. |
| If you want to save files as PNG, you can use the following command:</p> |
| <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>airflow dags show example_complex --save example_complex.png |
| </pre></div> |
| </div> |
| <p>An example image file may look as follow:</p> |
| <img alt="../_images/usage_cli_export.png" src="../_images/usage_cli_export.png" /> |
| <p>The following file formats are supported:</p> |
| <blockquote> |
| <div><ul class="simple"> |
| <li><p><code class="docutils literal notranslate"><span class="pre">bmp</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">canon</span></code>, <code class="docutils literal notranslate"><span class="pre">dot</span></code>, <code class="docutils literal notranslate"><span class="pre">gv</span></code>, <code class="docutils literal notranslate"><span class="pre">xdot</span></code>, <code class="docutils literal notranslate"><span class="pre">xdot1.2</span></code>, <code class="docutils literal notranslate"><span class="pre">xdot1.4</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">cgimage</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">cmap</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">eps</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">exr</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">fig</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">gd</span></code>, <code class="docutils literal notranslate"><span class="pre">gd2</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">gif</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">gtk</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">ico</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">imap</span></code>, <code class="docutils literal notranslate"><span class="pre">cmapx</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">imap_np</span></code>, <code class="docutils literal notranslate"><span class="pre">cmapx_np</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">ismap</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">jp2</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">jpg</span></code>, <code class="docutils literal notranslate"><span class="pre">jpeg</span></code>, <code class="docutils literal notranslate"><span class="pre">jpe</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">json</span></code>, <code class="docutils literal notranslate"><span class="pre">json0</span></code>, <code class="docutils literal notranslate"><span class="pre">dot_json</span></code>, <code class="docutils literal notranslate"><span class="pre">xdot_json</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">pct</span></code>, <code class="docutils literal notranslate"><span class="pre">pict</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">pdf</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">pic</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">plain</span></code>, <code class="docutils literal notranslate"><span class="pre">plain-ext</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">png</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">pov</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">ps</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">ps2</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">psd</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">sgi</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">svg</span></code>, <code class="docutils literal notranslate"><span class="pre">svgz</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">tga</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">tif</span></code>, <code class="docutils literal notranslate"><span class="pre">tiff</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">tk</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">vml</span></code>, <code class="docutils literal notranslate"><span class="pre">vmlz</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">vrml</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">wbmp</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">webp</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">xlib</span></code>,</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">x11</span></code>.</p></li> |
| </ul> |
| </div></blockquote> |
| <p>By default, the application search for DAGs in the directory specified in <code class="docutils literal notranslate"><span class="pre">dags_folder</span></code> option in |
| <code class="docutils literal notranslate"><span class="pre">[core]</span></code> section specified in the file <code class="docutils literal notranslate"><span class="pre">airflow.cfg</span></code>. You can change it with the <code class="docutils literal notranslate"><span class="pre">--subdir</span></code> switch.</p> |
| </div> |
| <div class="section" id="display-dags-structure"> |
| <h2>Display DAGs structure<a class="headerlink" href="#display-dags-structure" title="Permalink to this headline">¶</a></h2> |
| <p>Sometimes you will work on DAGs that contain complex dependencies. It is helpful then to preview |
| the DAG to see if it is correct.</p> |
| <p>If you have macOS, you can use <a class="reference external" href="https://iterm2.com/">iTerm2</a> together with |
| the <a class="reference external" href="https://www.iterm2.com/documentation-images.html">imgcat</a> script to display the DAG structure in the |
| console. You also need to have <a class="reference external" href="https://graphviz.gitlab.io/download/">Graphviz</a> installed.</p> |
| <p>Other terminals do not support the display of high-quality graphics. You can convert the image to a text |
| form, but its resolution will prevent you from reading it.</p> |
| <p>To do this, you should use the <code class="docutils literal notranslate"><span class="pre">--imgcat</span></code> switch in the <code class="docutils literal notranslate"><span class="pre">airflow</span> <span class="pre">dags</span> <span class="pre">show</span></code> command. For example, if you |
| want to display <code class="docutils literal notranslate"><span class="pre">example_bash_operator</span></code> DAG then you can use the following command:</p> |
| <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>airflow dag show example_bash_operator --imgcat |
| </pre></div> |
| </div> |
| <p>You will see a similar result as in the screenshot below.</p> |
| <img alt="../_images/usage_cli_imgcat.png" src="../_images/usage_cli_imgcat.png" /> |
| </div> |
| </div> |
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