| |
| |
| |
| |
| <!DOCTYPE html> |
| <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> |
| <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> |
| <head> |
| <meta charset="utf-8"> |
| |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> |
| |
| <title>airflow.contrib.example_dags.example_gcp_compute — Airflow Documentation</title> |
| |
| |
| |
| |
| |
| |
| |
| |
| <script type="text/javascript" src="../../../../_static/js/modernizr.min.js"></script> |
| |
| |
| <script type="text/javascript" id="documentation_options" data-url_root="../../../../" src="../../../../_static/documentation_options.js"></script> |
| <script type="text/javascript" src="../../../../_static/jquery.js"></script> |
| <script type="text/javascript" src="../../../../_static/underscore.js"></script> |
| <script type="text/javascript" src="../../../../_static/doctools.js"></script> |
| <script type="text/javascript" src="../../../../_static/language_data.js"></script> |
| |
| <script type="text/javascript" src="../../../../_static/js/theme.js"></script> |
| |
| |
| |
| |
| <link rel="stylesheet" href="../../../../_static/css/theme.css" type="text/css" /> |
| <link rel="stylesheet" href="../../../../_static/pygments.css" type="text/css" /> |
| <link rel="index" title="Index" href="../../../../genindex.html" /> |
| <link rel="search" title="Search" href="../../../../search.html" /> |
| |
| <script> |
| document.addEventListener('DOMContentLoaded', function() { |
| var el = document.getElementById('changelog'); |
| if (el !== null ) { |
| // [AIRFLOW-...] |
| el.innerHTML = el.innerHTML.replace( |
| /\[(AIRFLOW-[\d]+)\]/g, |
| `<a href="https://issues.apache.org/jira/browse/$1">[$1]</a>` |
| ); |
| // (#...) |
| el.innerHTML = el.innerHTML.replace( |
| /\(#([\d]+)\)/g, |
| `<a href="https://github.com/apache/airflow/pull/$1">(#$1)</a>` |
| ); |
| }; |
| }) |
| </script> |
| <style> |
| .example-header { |
| position: relative; |
| background: #9AAA7A; |
| padding: 8px 16px; |
| margin-bottom: 0; |
| } |
| .example-header--with-button { |
| padding-right: 166px; |
| } |
| .example-header:after{ |
| content: ''; |
| display: table; |
| clear: both; |
| } |
| .example-title { |
| display:block; |
| padding: 4px; |
| margin-right: 16px; |
| color: white; |
| overflow-x: auto; |
| } |
| .example-header-button { |
| top: 8px; |
| right: 16px; |
| position: absolute; |
| } |
| .example-header + .highlight-python { |
| margin-top: 0 !important; |
| } |
| .viewcode-button { |
| display: inline-block; |
| padding: 8px 16px; |
| border: 0; |
| margin: 0; |
| outline: 0; |
| border-radius: 2px; |
| -webkit-box-shadow: 0 3px 5px 0 rgba(0,0,0,.3); |
| box-shadow: 0 3px 6px 0 rgba(0,0,0,.3); |
| color: #404040; |
| background-color: #e7e7e7; |
| cursor: pointer; |
| font-size: 16px; |
| font-weight: 500; |
| line-height: 1; |
| text-decoration: none; |
| text-overflow: ellipsis; |
| overflow: hidden; |
| text-transform: uppercase; |
| -webkit-transition: background-color .2s; |
| transition: background-color .2s; |
| vertical-align: middle; |
| white-space: nowrap; |
| } |
| .viewcode-button:visited { |
| color: #404040; |
| } |
| .viewcode-button:hover, .viewcode-button:focus { |
| color: #404040; |
| background-color: #d6d6d6; |
| } |
| </style> |
| <!-- Matomo --> |
| <script> |
| var _paq = window._paq = window._paq || []; |
| _paq.push(['disableCookies']); |
| _paq.push(['trackPageView']); |
| _paq.push(['enableLinkTracking']); |
| (function() { |
| var u="https://analytics.apache.org/"; |
| _paq.push(['setTrackerUrl', u+'matomo.php']); |
| _paq.push(['setSiteId', '13']); |
| var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; |
| g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); |
| })(); |
| </script> |
| <!-- End Matomo --> |
| </head> |
| |
| |
| <body class="wy-body-for-nav"> |
| |
| |
| <div class="wy-grid-for-nav"> |
| |
| <nav data-toggle="wy-nav-shift" class="wy-nav-side"> |
| <div class="wy-side-scroll"> |
| <div class="wy-side-nav-search" > |
| |
| |
| |
| <a href="../../../../index.html" class="icon icon-home"> Airflow |
| |
| |
| |
| </a> |
| |
| |
| |
| |
| <div class="version"> |
| 1.10.3 |
| </div> |
| |
| |
| |
| |
| <div role="search"> |
| <form id="rtd-search-form" class="wy-form" action="../../../../search.html" method="get"> |
| <input type="text" name="q" placeholder="Search docs" /> |
| <input type="hidden" name="check_keywords" value="yes" /> |
| <input type="hidden" name="area" value="default" /> |
| </form> |
| </div> |
| |
| |
| </div> |
| |
| <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation"> |
| |
| |
| |
| |
| |
| |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../project.html">Project</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../license.html">License</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../start.html">Quick Start</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../installation.html">Installation</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../tutorial.html">Tutorial</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../howto/index.html">How-to Guides</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../ui.html">UI / Screenshots</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../concepts.html">Concepts</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../profiling.html">Data Profiling</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../cli.html">Command Line Interface</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../scheduler.html">Scheduling & Triggers</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../plugins.html">Plugins</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../security.html">Security</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../timezone.html">Time zones</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../api.html">Experimental Rest API</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../integration.html">Integration</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../metrics.html">Metrics</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../kubernetes.html">Kubernetes</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../lineage.html">Lineage</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../changelog.html">Changelog</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../faq.html">FAQ</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../macros.html">Macros reference</a></li> |
| <li class="toctree-l1"><a class="reference internal" href="../../../../_api/index.html">API Reference</a></li> |
| </ul> |
| |
| |
| |
| </div> |
| </div> |
| </nav> |
| |
| <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> |
| |
| |
| <nav class="wy-nav-top" aria-label="top navigation"> |
| |
| <i data-toggle="wy-nav-top" class="fa fa-bars"></i> |
| <a href="../../../../index.html">Airflow</a> |
| |
| </nav> |
| |
| |
| <div class="wy-nav-content"> |
| |
| <div class="rst-content"> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <div role="navigation" aria-label="breadcrumbs navigation"> |
| |
| <ul class="wy-breadcrumbs"> |
| |
| <li><a href="../../../../index.html">Docs</a> »</li> |
| |
| <li><a href="../../../index.html">Module code</a> »</li> |
| |
| <li>airflow.contrib.example_dags.example_gcp_compute</li> |
| |
| |
| <li class="wy-breadcrumbs-aside"> |
| |
| </li> |
| |
| </ul> |
| |
| |
| <hr/> |
| </div> |
| <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> |
| <div itemprop="articleBody"> |
| |
| <h1>Source code for airflow.contrib.example_dags.example_gcp_compute</h1><div class="highlight"><pre> |
| <span></span><span class="c1"># -*- coding: utf-8 -*-</span> |
| <span class="c1">#</span> |
| <span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="c1"># or more contributor license agreements. See the NOTICE file</span> |
| <span class="c1"># distributed with this work for additional information</span> |
| <span class="c1"># regarding copyright ownership. The ASF licenses this file</span> |
| <span class="c1"># to you under the Apache License, Version 2.0 (the</span> |
| <span class="c1"># "License"); you may not use this file except in compliance</span> |
| <span class="c1"># with the License. You may obtain a copy of the License at</span> |
| <span class="c1">#</span> |
| <span class="c1"># http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="c1">#</span> |
| <span class="c1"># Unless required by applicable law or agreed to in writing,</span> |
| <span class="c1"># software distributed under the License is distributed on an</span> |
| <span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span> |
| <span class="c1"># KIND, either express or implied. See the License for the</span> |
| <span class="c1"># specific language governing permissions and limitations</span> |
| <span class="c1"># under the License.</span> |
| |
| <span class="sd">"""</span> |
| <span class="sd">Example Airflow DAG that starts, stops and sets the machine type of a Google Compute</span> |
| <span class="sd">Engine instance.</span> |
| |
| <span class="sd">This DAG relies on the following OS environment variables</span> |
| |
| <span class="sd">* GCP_PROJECT_ID - Google Cloud Platform project where the Compute Engine instance exists.</span> |
| <span class="sd">* GCE_ZONE - Google Cloud Platform zone where the instance exists.</span> |
| <span class="sd">* GCE_INSTANCE - Name of the Compute Engine instance.</span> |
| <span class="sd">* GCE_SHORT_MACHINE_TYPE_NAME - Machine type resource name to set, e.g. 'n1-standard-1'.</span> |
| <span class="sd"> See https://cloud.google.com/compute/docs/machine-types</span> |
| <span class="sd">"""</span> |
| <span class="kn">import</span> <span class="nn">os</span> |
| |
| <span class="kn">import</span> <span class="nn">airflow</span> |
| <span class="kn">from</span> <span class="nn">airflow</span> <span class="k">import</span> <span class="n">models</span> |
| <span class="kn">from</span> <span class="nn">airflow.contrib.operators.gcp_compute_operator</span> <span class="k">import</span> <span class="n">GceInstanceStartOperator</span><span class="p">,</span> \ |
| <span class="n">GceInstanceStopOperator</span><span class="p">,</span> <span class="n">GceSetMachineTypeOperator</span> |
| |
| <span class="c1"># [START howto_operator_gce_args_common]</span> |
| <span class="n">GCP_PROJECT_ID</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'GCP_PROJECT_ID'</span><span class="p">,</span> <span class="s1">'example-project'</span><span class="p">)</span> |
| <span class="n">GCE_ZONE</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'GCE_ZONE'</span><span class="p">,</span> <span class="s1">'europe-west1-b'</span><span class="p">)</span> |
| <span class="n">GCE_INSTANCE</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'GCE_INSTANCE'</span><span class="p">,</span> <span class="s1">'testinstance'</span><span class="p">)</span> |
| <span class="c1"># [END howto_operator_gce_args_common]</span> |
| |
| <span class="n">default_args</span> <span class="o">=</span> <span class="p">{</span> |
| <span class="s1">'start_date'</span><span class="p">:</span> <span class="n">airflow</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">dates</span><span class="o">.</span><span class="n">days_ago</span><span class="p">(</span><span class="mi">1</span><span class="p">),</span> |
| <span class="p">}</span> |
| |
| <span class="c1"># [START howto_operator_gce_args_set_machine_type]</span> |
| <span class="n">GCE_SHORT_MACHINE_TYPE_NAME</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'GCE_SHORT_MACHINE_TYPE_NAME'</span><span class="p">,</span> <span class="s1">'n1-standard-1'</span><span class="p">)</span> |
| <span class="n">SET_MACHINE_TYPE_BODY</span> <span class="o">=</span> <span class="p">{</span> |
| <span class="s1">'machineType'</span><span class="p">:</span> <span class="s1">'zones/</span><span class="si">{}</span><span class="s1">/machineTypes/</span><span class="si">{}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">GCE_ZONE</span><span class="p">,</span> <span class="n">GCE_SHORT_MACHINE_TYPE_NAME</span><span class="p">)</span> |
| <span class="p">}</span> |
| <span class="c1"># [END howto_operator_gce_args_set_machine_type]</span> |
| |
| |
| <span class="k">with</span> <span class="n">models</span><span class="o">.</span><span class="n">DAG</span><span class="p">(</span> |
| <span class="s1">'example_gcp_compute'</span><span class="p">,</span> |
| <span class="n">default_args</span><span class="o">=</span><span class="n">default_args</span><span class="p">,</span> |
| <span class="n">schedule_interval</span><span class="o">=</span><span class="kc">None</span> <span class="c1"># Override to match your needs</span> |
| <span class="p">)</span> <span class="k">as</span> <span class="n">dag</span><span class="p">:</span> |
| <span class="c1"># [START howto_operator_gce_start]</span> |
| <span class="n">gce_instance_start</span> <span class="o">=</span> <span class="n">GceInstanceStartOperator</span><span class="p">(</span> |
| <span class="n">project_id</span><span class="o">=</span><span class="n">GCP_PROJECT_ID</span><span class="p">,</span> |
| <span class="n">zone</span><span class="o">=</span><span class="n">GCE_ZONE</span><span class="p">,</span> |
| <span class="n">resource_id</span><span class="o">=</span><span class="n">GCE_INSTANCE</span><span class="p">,</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'gcp_compute_start_task'</span> |
| <span class="p">)</span> |
| <span class="c1"># [END howto_operator_gce_start]</span> |
| <span class="c1"># Duplicate start for idempotence testing</span> |
| <span class="c1"># [START howto_operator_gce_start_no_project_id]</span> |
| <span class="n">gce_instance_start2</span> <span class="o">=</span> <span class="n">GceInstanceStartOperator</span><span class="p">(</span> |
| <span class="n">zone</span><span class="o">=</span><span class="n">GCE_ZONE</span><span class="p">,</span> |
| <span class="n">resource_id</span><span class="o">=</span><span class="n">GCE_INSTANCE</span><span class="p">,</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'gcp_compute_start_task2'</span> |
| <span class="p">)</span> |
| <span class="c1"># [END howto_operator_gce_start_no_project_id]</span> |
| <span class="c1"># [START howto_operator_gce_stop]</span> |
| <span class="n">gce_instance_stop</span> <span class="o">=</span> <span class="n">GceInstanceStopOperator</span><span class="p">(</span> |
| <span class="n">project_id</span><span class="o">=</span><span class="n">GCP_PROJECT_ID</span><span class="p">,</span> |
| <span class="n">zone</span><span class="o">=</span><span class="n">GCE_ZONE</span><span class="p">,</span> |
| <span class="n">resource_id</span><span class="o">=</span><span class="n">GCE_INSTANCE</span><span class="p">,</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'gcp_compute_stop_task'</span> |
| <span class="p">)</span> |
| <span class="c1"># [END howto_operator_gce_stop]</span> |
| <span class="c1"># Duplicate stop for idempotence testing</span> |
| <span class="c1"># [START howto_operator_gce_stop_no_project_id]</span> |
| <span class="n">gce_instance_stop2</span> <span class="o">=</span> <span class="n">GceInstanceStopOperator</span><span class="p">(</span> |
| <span class="n">zone</span><span class="o">=</span><span class="n">GCE_ZONE</span><span class="p">,</span> |
| <span class="n">resource_id</span><span class="o">=</span><span class="n">GCE_INSTANCE</span><span class="p">,</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'gcp_compute_stop_task2'</span> |
| <span class="p">)</span> |
| <span class="c1"># [END howto_operator_gce_stop_no_project_id]</span> |
| <span class="c1"># [START howto_operator_gce_set_machine_type]</span> |
| <span class="n">gce_set_machine_type</span> <span class="o">=</span> <span class="n">GceSetMachineTypeOperator</span><span class="p">(</span> |
| <span class="n">project_id</span><span class="o">=</span><span class="n">GCP_PROJECT_ID</span><span class="p">,</span> |
| <span class="n">zone</span><span class="o">=</span><span class="n">GCE_ZONE</span><span class="p">,</span> |
| <span class="n">resource_id</span><span class="o">=</span><span class="n">GCE_INSTANCE</span><span class="p">,</span> |
| <span class="n">body</span><span class="o">=</span><span class="n">SET_MACHINE_TYPE_BODY</span><span class="p">,</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'gcp_compute_set_machine_type'</span> |
| <span class="p">)</span> |
| <span class="c1"># [END howto_operator_gce_set_machine_type]</span> |
| <span class="c1"># Duplicate set machine type for idempotence testing</span> |
| <span class="c1"># [START howto_operator_gce_set_machine_type_no_project_id]</span> |
| <span class="n">gce_set_machine_type2</span> <span class="o">=</span> <span class="n">GceSetMachineTypeOperator</span><span class="p">(</span> |
| <span class="n">zone</span><span class="o">=</span><span class="n">GCE_ZONE</span><span class="p">,</span> |
| <span class="n">resource_id</span><span class="o">=</span><span class="n">GCE_INSTANCE</span><span class="p">,</span> |
| <span class="n">body</span><span class="o">=</span><span class="n">SET_MACHINE_TYPE_BODY</span><span class="p">,</span> |
| <span class="n">task_id</span><span class="o">=</span><span class="s1">'gcp_compute_set_machine_type2'</span> |
| <span class="p">)</span> |
| <span class="c1"># [END howto_operator_gce_set_machine_type_no_project_id]</span> |
| |
| <span class="n">gce_instance_start</span> <span class="o">>></span> <span class="n">gce_instance_start2</span> <span class="o">>></span> <span class="n">gce_instance_stop</span> <span class="o">>></span> \ |
| <span class="n">gce_instance_stop2</span> <span class="o">>></span> <span class="n">gce_set_machine_type</span> <span class="o">>></span> <span class="n">gce_set_machine_type2</span> |
| </pre></div> |
| |
| </div> |
| |
| </div> |
| <footer> |
| |
| |
| <hr/> |
| |
| <div role="contentinfo"> |
| <p> |
| |
| </p> |
| </div> |
| Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. |
| |
| </footer> |
| |
| </div> |
| </div> |
| |
| </section> |
| |
| </div> |
| |
| |
| |
| <script type="text/javascript"> |
| jQuery(function () { |
| SphinxRtdTheme.Navigation.enable(true); |
| }); |
| </script> |
| |
| |
| |
| |
| |
| |
| </body> |
| </html> |