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<div class="section" id="module-airflow.operators.docker_operator">
<span id="airflow-operators-docker-operator"></span><h1><a class="reference internal" href="#module-airflow.operators.docker_operator" title="airflow.operators.docker_operator"><code class="xref py py-mod docutils literal notranslate"><span class="pre">airflow.operators.docker_operator</span></code></a><a class="headerlink" href="#module-airflow.operators.docker_operator" title="Permalink to this headline"></a></h1>
<p><p>Implements Docker operator</p>
</p>
<div class="section" id="module-contents">
<h2>Module Contents<a class="headerlink" href="#module-contents" title="Permalink to this headline"></a></h2>
<dl class="class">
<dt id="airflow.operators.docker_operator.DockerOperator">
<em class="property">class </em><code class="sig-prename descclassname">airflow.operators.docker_operator.</code><code class="sig-name descname">DockerOperator</code><span class="sig-paren">(</span><em class="sig-param">image</em>, <em class="sig-param">api_version=None</em>, <em class="sig-param">command=None</em>, <em class="sig-param">container_name=None</em>, <em class="sig-param">cpus=1.0</em>, <em class="sig-param">docker_url='unix://var/run/docker.sock'</em>, <em class="sig-param">environment=None</em>, <em class="sig-param">force_pull=False</em>, <em class="sig-param">mem_limit=None</em>, <em class="sig-param">host_tmp_dir=None</em>, <em class="sig-param">network_mode=None</em>, <em class="sig-param">tls_ca_cert=None</em>, <em class="sig-param">tls_client_cert=None</em>, <em class="sig-param">tls_client_key=None</em>, <em class="sig-param">tls_hostname=None</em>, <em class="sig-param">tls_ssl_version=None</em>, <em class="sig-param">tmp_dir='/tmp/airflow'</em>, <em class="sig-param">user=None</em>, <em class="sig-param">volumes=None</em>, <em class="sig-param">working_dir=None</em>, <em class="sig-param">xcom_push=False</em>, <em class="sig-param">xcom_all=False</em>, <em class="sig-param">docker_conn_id=None</em>, <em class="sig-param">dns=None</em>, <em class="sig-param">dns_search=None</em>, <em class="sig-param">auto_remove=False</em>, <em class="sig-param">shm_size=None</em>, <em class="sig-param">*args</em>, <em class="sig-param">**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <a class="reference internal" href="../../models/index.html#airflow.models.BaseOperator" title="airflow.models.BaseOperator"><code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.models.BaseOperator</span></code></a></p>
<p>Execute a command inside a docker container.</p>
<p>A temporary directory is created on the host and
mounted into a container to allow storing files
that together exceed the default disk size of 10GB in a container.
The path to the mounted directory can be accessed
via the environment variable <code class="docutils literal notranslate"><span class="pre">AIRFLOW_TMP_DIR</span></code>.</p>
<p>If a login to a private registry is required prior to pulling the image, a
Docker connection needs to be configured in Airflow and the connection ID
be provided with the parameter <code class="docutils literal notranslate"><span class="pre">docker_conn_id</span></code>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>image</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Docker image from which to create the container.
If image tag is omitted, “latest” will be used.</p></li>
<li><p><strong>api_version</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Remote API version. Set to <code class="docutils literal notranslate"><span class="pre">auto</span></code> to automatically
detect the server’s version.</p></li>
<li><p><strong>auto_remove</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Auto-removal of the container on daemon side when the
container’s process exits.
The default is False.</p></li>
<li><p><strong>command</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.8)"><em>list</em></a>) – Command to be run in the container. (templated)</p></li>
<li><p><strong>container_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.8)"><em>None</em></a>) – Name of the container. Optional (templated)</p></li>
<li><p><strong>cpus</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#float" title="(in Python v3.8)"><em>float</em></a>) – Number of CPUs to assign to the container.
This value gets multiplied with 1024. See
<a class="reference external" href="https://docs.docker.com/engine/reference/run/#cpu-share-constraint">https://docs.docker.com/engine/reference/run/#cpu-share-constraint</a></p></li>
<li><p><strong>dns</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.8)"><em>list</em></a><em>[</em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em>]</em>) – Docker custom DNS servers</p></li>
<li><p><strong>dns_search</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.8)"><em>list</em></a><em>[</em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em>]</em>) – Docker custom DNS search domain</p></li>
<li><p><strong>docker_url</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – URL of the host running the docker daemon.
Default is unix://var/run/docker.sock</p></li>
<li><p><strong>environment</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.8)"><em>dict</em></a>) – Environment variables to set in the container. (templated)</p></li>
<li><p><strong>force_pull</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Pull the docker image on every run. Default is False.</p></li>
<li><p><strong>mem_limit</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#float" title="(in Python v3.8)"><em>float</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Maximum amount of memory the container can use.
Either a float value, which represents the limit in bytes,
or a string like <code class="docutils literal notranslate"><span class="pre">128m</span></code> or <code class="docutils literal notranslate"><span class="pre">1g</span></code>.</p></li>
<li><p><strong>host_tmp_dir</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Specify the location of the temporary directory on the host which will
be mapped to tmp_dir. If not provided defaults to using the standard system temp directory.</p></li>
<li><p><strong>network_mode</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Network mode for the container.</p></li>
<li><p><strong>tls_ca_cert</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Path to a PEM-encoded certificate authority
to secure the docker connection.</p></li>
<li><p><strong>tls_client_cert</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Path to the PEM-encoded certificate
used to authenticate docker client.</p></li>
<li><p><strong>tls_client_key</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Path to the PEM-encoded key used to authenticate docker client.</p></li>
<li><p><strong>tls_hostname</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Hostname to match against
the docker server certificate or False to disable the check.</p></li>
<li><p><strong>tls_ssl_version</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Version of SSL to use when communicating with docker daemon.</p></li>
<li><p><strong>tmp_dir</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Mount point inside the container to
a temporary directory created on the host by the operator.
The path is also made available via the environment variable
<code class="docutils literal notranslate"><span class="pre">AIRFLOW_TMP_DIR</span></code> inside the container.</p></li>
<li><p><strong>user</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Default user inside the docker container.</p></li>
<li><p><strong>volumes</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.8)"><em>list</em></a>) – List of volumes to mount into the container, e.g.
<code class="docutils literal notranslate"><span class="pre">['/host/path:/container/path',</span> <span class="pre">'/host/path2:/container/path2:ro']</span></code>.</p></li>
<li><p><strong>working_dir</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Working directory to
set on the container (equivalent to the -w switch the docker client)</p></li>
<li><p><strong>xcom_push</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Does the stdout will be pushed to the next step using XCom.
The default is False.</p></li>
<li><p><strong>xcom_all</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Push all the stdout or just the last line.
The default is False (last line).</p></li>
<li><p><strong>docker_conn_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – ID of the Airflow connection to use</p></li>
<li><p><strong>shm_size</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – Size of <code class="docutils literal notranslate"><span class="pre">/dev/shm</span></code> in bytes. The size must be
greater than 0. If omitted uses system default.</p></li>
</ul>
</dd>
</dl>
<dl class="attribute">
<dt id="airflow.operators.docker_operator.DockerOperator.template_fields">
<code class="sig-name descname">template_fields</code><em class="property"> = ['command', 'environment', 'container_name']</em><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator.template_fields"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator.template_fields" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="attribute">
<dt id="airflow.operators.docker_operator.DockerOperator.template_ext">
<code class="sig-name descname">template_ext</code><em class="property"> = ['.sh', '.bash']</em><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator.template_ext"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator.template_ext" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="airflow.operators.docker_operator.DockerOperator.get_hook">
<code class="sig-name descname">get_hook</code><span class="sig-paren">(</span><em class="sig-param">self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator.get_hook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator.get_hook" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="airflow.operators.docker_operator.DockerOperator.execute">
<code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">context</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator.execute" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="airflow.operators.docker_operator.DockerOperator.get_command">
<code class="sig-name descname">get_command</code><span class="sig-paren">(</span><em class="sig-param">self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator.get_command"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator.get_command" title="Permalink to this definition"></a></dt>
<dd><p>Retrieve command(s). if command string starts with [, it returns the command list)</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>the command (or commands)</p>
</dd>
<dt class="field-even">Return type</dt>
<dd class="field-even"><p>str | List[<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)">str</a>]</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="airflow.operators.docker_operator.DockerOperator.on_kill">
<code class="sig-name descname">on_kill</code><span class="sig-paren">(</span><em class="sig-param">self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator.on_kill"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator.on_kill" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="airflow.operators.docker_operator.DockerOperator.__get_tls_config">
<code class="sig-name descname">__get_tls_config</code><span class="sig-paren">(</span><em class="sig-param">self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/operators/docker_operator.html#DockerOperator.__get_tls_config"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.operators.docker_operator.DockerOperator.__get_tls_config" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
</dd></dl>
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