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itemprop="articleBody"> + + <h1>Source code for airflow.contrib.hooks.aws_dynamodb_hook</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="kn">from</span> <span class="nn">airflow.exceptions</span> <span class="k">import</span> <span class="n">AirflowException</span> +<span class="kn">from</span> <span class="nn">airflow.contrib.hooks.aws_hook</span> <span class="k">import</span> <span class="n">AwsHook</span> + + +<div class="viewcode-block" id="AwsDynamoDBHook"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.hooks.aws_dynamodb_hook.AwsDynamoDBHook">[docs]</a><span class="k">class</span> <span class="nc">AwsDynamoDBHook</span><span class="p">(</span><span class="n">AwsHook</span><span class="p">):</span> + <span class="sd">"""</span> +<span class="sd"> Interact with AWS DynamoDB.</span> + +<span class="sd"> :param table_keys: partition key and sort key</span> +<span class="sd"> :type table_keys: list</span> +<span class="sd"> :param table_name: target DynamoDB table</span> +<span class="sd"> :type table_name: str</span> +<span class="sd"> :param region_name: aws region name (example: us-east-1)</span> +<span class="sd"> :type region_name: str</span> +<span class="sd"> """</span> + + <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table_keys</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">table_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">region_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> + <span class="bp">self</span><span class="o">.</span><span class="n">table_keys</span> <span class="o">=</span> <span class="n">table_keys</span> + <span class="bp">self</span><span class="o">.</span><span class="n">table_name</span> <span class="o">=</span> <span class="n">table_name</span> + <span class="bp">self</span><span class="o">.</span><span class="n">region_name</span> <span class="o">=</span> <span class="n">region_name</span> + <span class="nb">super</span><span class="p">(</span><span class="n">AwsDynamoDBHook</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> + + <span class="k">def</span> <span class="nf">get_conn</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> + <span class="bp">self</span><span class="o">.</span><span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_resource_type</span><span class="p">(</span><span class="s1">'dynamodb'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">region_name</span><span class="p">)</span> + <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">conn</span> + +<div class="viewcode-block" id="AwsDynamoDBHook.write_batch_data"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.hooks.aws_dynamodb_hook.AwsDynamoDBHook.write_batch_data">[docs]</a> <span class="k">def</span> <span class="nf">write_batch_data</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">items</span><span class="p">):</span> + <span class="sd">"""</span> +<span class="sd"> Write batch items to dynamodb table with provisioned throughout capacity.</span> +<span class="sd"> """</span> + + <span class="n">dynamodb_conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_conn</span><span class="p">()</span> + + <span class="k">try</span><span class="p">:</span> + <span class="n">table</span> <span class="o">=</span> <span class="n">dynamodb_conn</span><span class="o">.</span><span class="n">Table</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table_name</span><span class="p">)</span> + + <span class="k">with</span> <span class="n">table</span><span class="o">.</span><span class="n">batch_writer</span><span class="p">(</span><span class="n">overwrite_by_pkeys</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">table_keys</span><span class="p">)</span> <span class="k">as</span> <span class="n">batch</span><span class="p">:</span> + <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">items</span><span class="p">:</span> + <span class="n">batch</span><span class="o">.</span><span class="n">put_item</span><span class="p">(</span><span class="n">Item</span><span class="o">=</span><span class="n">item</span><span class="p">)</span> + <span class="k">return</span> <span class="kc">True</span> + <span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">general_error</span><span class="p">:</span> + <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span> + <span class="s1">'Failed to insert items in dynamodb, error: </span><span class="si">{error}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span> + <span class="n">error</span><span class="o">=</span><span class="nb">str</span><span class="p">(</span><span class="n">general_error</span><span class="p">)</span> + <span class="p">)</span> + <span class="p">)</span></div></div> +</pre></div> + + </div> + <div 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airflow.contrib.hooks.aws_hook</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="kn">import</span> <span class="nn">boto3</span> +<span class="kn">import</span> <span class="nn">configparser</span> +<span class="kn">import</span> <span class="nn">logging</span> + +<span class="kn">from</span> <span class="nn">airflow.exceptions</span> <span class="k">import</span> <span class="n">AirflowException</span> +<span class="kn">from</span> <span class="nn">airflow.hooks.base_hook</span> <span class="k">import</span> <span class="n">BaseHook</span> + + +<span class="k">def</span> <span class="nf">_parse_s3_config</span><span class="p">(</span><span class="n">config_file_name</span><span class="p">,</span> <span class="n">config_format</span><span class="o">=</span><span class="s1">'boto'</span><span class="p">,</span> <span class="n">profile</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> + <span class="sd">"""</span> +<span class="sd"> Parses a config file for s3 credentials. Can currently</span> +<span class="sd"> parse boto, s3cmd.conf and AWS SDK config formats</span> + +<span class="sd"> :param config_file_name: path to the config file</span> +<span class="sd"> :type config_file_name: str</span> +<span class="sd"> :param config_format: config type. One of "boto", "s3cmd" or "aws".</span> +<span class="sd"> Defaults to "boto"</span> +<span class="sd"> :type config_format: str</span> +<span class="sd"> :param profile: profile name in AWS type config file</span> +<span class="sd"> :type profile: str</span> +<span class="sd"> """</span> + <span class="n">config</span> <span class="o">=</span> <span class="n">configparser</span><span class="o">.</span><span class="n">ConfigParser</span><span class="p">()</span> + <span class="k">if</span> <span class="n">config</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">config_file_name</span><span class="p">):</span> <span class="c1"># pragma: no cover</span> + <span class="n">sections</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">sections</span><span class="p">()</span> + <span class="k">else</span><span class="p">:</span> + <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s2">"Couldn't read </span><span class="si">{0}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">config_file_name</span><span class="p">))</span> + <span class="c1"># Setting option names depending on file format</span> + <span class="k">if</span> <span class="n">config_format</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> + <span class="n">config_format</span> <span class="o">=</span> <span class="s1">'boto'</span> + <span class="n">conf_format</span> <span class="o">=</span> <span class="n">config_format</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> + <span class="k">if</span> <span class="n">conf_format</span> <span class="o">==</span> <span class="s1">'boto'</span><span class="p">:</span> <span class="c1"># pragma: no cover</span> + <span class="k">if</span> <span class="n">profile</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="s1">'profile '</span> <span class="o">+</span> <span class="n">profile</span> <span class="ow">in</span> <span class="n">sections</span><span class="p">:</span> + <span class="n">cred_section</span> <span class="o">=</span> <span class="s1">'profile '</span> <span class="o">+</span> <span class="n">profile</span> + <span class="k">else</span><span class="p">:</span> + <span class="n">cred_section</span> <span class="o">=</span> <span class="s1">'Credentials'</span> + <span class="k">elif</span> <span class="n">conf_format</span> <span class="o">==</span> <span class="s1">'aws'</span> <span class="ow">and</span> <span class="n">profile</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> + <span class="n">cred_section</span> <span class="o">=</span> <span class="n">profile</span> + <span class="k">else</span><span class="p">:</span> + <span class="n">cred_section</span> <span class="o">=</span> <span class="s1">'default'</span> + <span class="c1"># Option names</span> + <span class="k">if</span> <span class="n">conf_format</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'boto'</span><span class="p">,</span> <span class="s1">'aws'</span><span class="p">):</span> <span class="c1"># pragma: no cover</span> + <span class="n">key_id_option</span> <span class="o">=</span> <span class="s1">'aws_access_key_id'</span> + <span class="n">secret_key_option</span> <span class="o">=</span> <span class="s1">'aws_secret_access_key'</span> + <span class="c1"># security_token_option = 'aws_security_token'</span> + <span class="k">else</span><span class="p">:</span> + <span class="n">key_id_option</span> <span class="o">=</span> <span class="s1">'access_key'</span> + <span class="n">secret_key_option</span> <span class="o">=</span> <span class="s1">'secret_key'</span> + <span class="c1"># Actual Parsing</span> + <span class="k">if</span> <span class="n">cred_section</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">sections</span><span class="p">:</span> + <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s2">"This config file format is not recognized"</span><span class="p">)</span> + <span class="k">else</span><span class="p">:</span> + <span class="k">try</span><span class="p">:</span> + <span class="n">access_key</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">cred_section</span><span class="p">,</span> <span class="n">key_id_option</span><span class="p">)</span> + <span class="n">secret_key</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">cred_section</span><span class="p">,</span> <span class="n">secret_key_option</span><span class="p">)</span> + <span class="k">except</span><span class="p">:</span> + <span class="n">logging</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s2">"Option Error in parsing s3 config file"</span><span class="p">)</span> + <span class="k">raise</span> + <span class="k">return</span> <span class="n">access_key</span><span class="p">,</span> <span class="n">secret_key</span> + + +<div class="viewcode-block" id="AwsHook"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.hooks.aws_hook.AwsHook">[docs]</a><span class="k">class</span> <span class="nc">AwsHook</span><span class="p">(</span><span class="n">BaseHook</span><span class="p">):</span> + <span class="sd">"""</span> +<span class="sd"> Interact with AWS.</span> +<span class="sd"> This class is a thin wrapper around the boto3 python library.</span> +<span class="sd"> """</span> + + <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">aws_conn_id</span><span class="o">=</span><span class="s1">'aws_default'</span><span class="p">):</span> + <span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span> <span class="o">=</span> <span class="n">aws_conn_id</span> + + <span class="k">def</span> <span class="nf">_get_credentials</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">region_name</span><span class="p">):</span> + <span class="n">aws_access_key_id</span> <span class="o">=</span> <span class="kc">None</span> + <span class="n">aws_secret_access_key</span> <span class="o">=</span> <span class="kc">None</span> + <span class="n">aws_session_token</span> <span class="o">=</span> <span class="kc">None</span> + <span class="n">endpoint_url</span> <span class="o">=</span> <span class="kc">None</span> + + <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span><span class="p">:</span> + <span class="k">try</span><span class="p">:</span> + <span class="n">connection_object</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_connection</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span><span class="p">)</span> + <span class="k">if</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">login</span><span class="p">:</span> + <span class="n">aws_access_key_id</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">login</span> + <span class="n">aws_secret_access_key</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">password</span> + + <span class="k">elif</span> <span class="s1">'aws_secret_access_key'</span> <span class="ow">in</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="p">:</span> + <span class="n">aws_access_key_id</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="p">[</span><span class="s1">'aws_access_key_id'</span><span class="p">]</span> + <span class="n">aws_secret_access_key</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="p">[</span><span class="s1">'aws_secret_access_key'</span><span class="p">]</span> + + <span class="k">elif</span> <span class="s1">'s3_config_file'</span> <span class="ow">in</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="p">:</span> + <span class="n">aws_access_key_id</span><span class="p">,</span> <span class="n">aws_secret_access_key</span> <span class="o">=</span> \ + <span class="n">_parse_s3_config</span><span class="p">(</span><span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="p">[</span><span class="s1">'s3_config_file'</span><span class="p">],</span> + <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'s3_config_format'</span><span class="p">))</span> + + <span class="k">if</span> <span class="n">region_name</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> + <span class="n">region_name</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'region_name'</span><span class="p">)</span> + + <span class="n">role_arn</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'role_arn'</span><span class="p">)</span> + <span class="n">aws_account_id</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'aws_account_id'</span><span class="p">)</span> + <span class="n">aws_iam_role</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'aws_iam_role'</span><span class="p">)</span> + + <span class="k">if</span> <span class="n">role_arn</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">aws_account_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> \ + <span class="n">aws_iam_role</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> + + <span class="n">role_arn</span> <span class="o">=</span> <span class="s2">"arn:aws:iam::"</span> <span class="o">+</span> <span class="n">aws_account_id</span> <span class="o">+</span> <span class="s2">":role/"</span> <span class="o">+</span> <span class="n">aws_iam_role</span> + + <span class="k">if</span> <span class="n">role_arn</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> + <span class="n">sts_session</span> <span class="o">=</span> <span class="n">boto3</span><span class="o">.</span><span class="n">session</span><span class="o">.</span><span class="n">Session</span><span class="p">(</span> + <span class="n">aws_access_key_id</span><span class="o">=</span><span class="n">aws_access_key_id</span><span class="p">,</span> + <span class="n">aws_secret_access_key</span><span class="o">=</span><span class="n">aws_secret_access_key</span><span class="p">,</span> + <span class="n">region_name</span><span class="o">=</span><span class="n">region_name</span><span class="p">)</span> + + <span class="n">sts_client</span> <span class="o">=</span> <span class="n">sts_session</span><span class="o">.</span><span class="n">client</span><span class="p">(</span><span class="s1">'sts'</span><span class="p">)</span> + <span class="n">sts_response</span> <span class="o">=</span> <span class="n">sts_client</span><span class="o">.</span><span class="n">assume_role</span><span class="p">(</span> + <span class="n">RoleArn</span><span class="o">=</span><span class="n">role_arn</span><span class="p">,</span> + <span class="n">RoleSessionName</span><span class="o">=</span><span class="s1">'Airflow_'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span><span class="p">)</span> + <span class="n">aws_access_key_id</span> <span class="o">=</span> <span class="n">sts_response</span><span class="p">[</span><span class="s1">'Credentials'</span><span class="p">][</span><span class="s1">'AccessKeyId'</span><span class="p">]</span> + <span class="n">aws_secret_access_key</span> <span class="o">=</span> <span class="n">sts_response</span><span class="p">[</span><span class="s1">'Credentials'</span><span class="p">][</span><span class="s1">'SecretAccessKey'</span><span class="p">]</span> + <span class="n">aws_session_token</span> <span class="o">=</span> <span class="n">sts_response</span><span class="p">[</span><span class="s1">'Credentials'</span><span class="p">][</span><span class="s1">'SessionToken'</span><span class="p">]</span> + + <span class="n">endpoint_url</span> <span class="o">=</span> <span class="n">connection_object</span><span class="o">.</span><span class="n">extra_dejson</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'host'</span><span class="p">)</span> + + <span class="k">except</span> <span class="n">AirflowException</span><span class="p">:</span> + <span class="c1"># No connection found: fallback on boto3 credential strategy</span> + <span class="c1"># http://boto3.readthedocs.io/en/latest/guide/configuration.html</span> + <span class="k">pass</span> + + <span class="k">return</span> <span class="n">boto3</span><span class="o">.</span><span class="n">session</span><span class="o">.</span><span class="n">Session</span><span class="p">(</span> + <span class="n">aws_access_key_id</span><span class="o">=</span><span class="n">aws_access_key_id</span><span class="p">,</span> + <span class="n">aws_secret_access_key</span><span class="o">=</span><span class="n">aws_secret_access_key</span><span class="p">,</span> + <span class="n">aws_session_token</span><span class="o">=</span><span class="n">aws_session_token</span><span class="p">,</span> + <span class="n">region_name</span><span class="o">=</span><span class="n">region_name</span><span class="p">),</span> <span class="n">endpoint_url</span> + + <span class="k">def</span> <span class="nf">get_client_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">client_type</span><span class="p">,</span> <span class="n">region_name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> + <span class="n">session</span><span class="p">,</span> <span class="n">endpoint_url</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_credentials</span><span class="p">(</span><span class="n">region_name</span><span class="p">)</span> + + <span class="k">return</span> <span class="n">session</span><span class="o">.</span><span class="n">client</span><span class="p">(</span><span class="n">client_type</span><span class="p">,</span> <span class="n">endpoint_url</span><span class="o">=</span><span class="n">endpoint_url</span><span class="p">)</span> + + <span class="k">def</span> <span class="nf">get_resource_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">resource_type</span><span class="p">,</span> <span class="n">region_name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> + <span class="n">session</span><span class="p">,</span> <span class="n">endpoint_url</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_credentials</span><span class="p">(</span><span class="n">region_name</span><span class="p">)</span> + + <span class="k">return</span> <span class="n">session</span><span class="o">.</span><span class="n">resource</span><span class="p">(</span><span class="n">resource_type</span><span class="p">,</span> <span class="n">endpoint_url</span><span class="o">=</span><span class="n">endpoint_url</span><span class="p">)</span> + +<div class="viewcode-block" id="AwsHook.get_session"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.hooks.aws_hook.AwsHook.get_session">[docs]</a> <span class="k">def</span> <span class="nf">get_session</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">region_name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> + <span class="sd">"""Get the underlying boto3.session."""</span> + <span class="n">session</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_credentials</span><span class="p">(</span><span class="n">region_name</span><span class="p">)</span> + <span class="k">return</span> <span class="n">session</span></div> + +<div class="viewcode-block" id="AwsHook.get_credentials"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.hooks.aws_hook.AwsHook.get_credentials">[docs]</a> <span class="k">def</span> <span class="nf">get_credentials</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">region_name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> + <span class="sd">"""Get the underlying `botocore.Credentials` object.</span> + +<span class="sd"> This contains the attributes: access_key, secret_key and token.</span> +<span class="sd"> """</span> + <span class="n">session</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_credentials</span><span class="p">(</span><span class="n">region_name</span><span class="p">)</span> + <span class="c1"># Credentials are refreshable, so accessing your access key / secret key</span> + <span class="c1"># separately can lead to a race condition.</span> + <span class="c1"># See https://stackoverflow.com/a/36291428/8283373</span> + <span class="k">return</span> <span class="n">session</span><span class="o">.</span><span class="n">get_credentials</span><span class="p">()</span><span class="o">.</span><span class="n">get_frozen_credentials</span><span class="p">()</span></div></div> +</pre></div> + + </div> + <div class="articleComments"> + + </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/snide/sphinx_rtd_theme";>theme</a> provided by <a href="https://readthedocs.org";>Read the Docs</a>. + +</footer> + + </div> + </div> + 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a/_modules/airflow/contrib/hooks/aws_lambda_hook.html b/_modules/airflow/contrib/hooks/aws_lambda_hook.html new file mode 100644 index 0000000..5953a6b --- /dev/null +++ b/_modules/airflow/contrib/hooks/aws_lambda_hook.html @@ -0,0 +1,302 @@ + + +<!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.hooks.aws_lambda_hook — Airflow Documentation</title> + + + + + + + + + + + + + + + + + + <link rel="stylesheet" href="../../../../_static/css/theme.css" type="text/css" /> + + + + + + <link rel="index" title="Index" + href="../../../../genindex.html"/> + <link rel="search" title="Search" href="../../../../search.html"/> + <link rel="top" title="Airflow Documentation" href="../../../../index.html"/> + <link rel="up" title="Module code" 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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="kn">from</span> <span class="nn">airflow.contrib.hooks.aws_hook</span> <span class="k">import</span> <span class="n">AwsHook</span> + + +<div class="viewcode-block" id="AwsLambdaHook"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.hooks.aws_lambda_hook.AwsLambdaHook">[docs]</a><span class="k">class</span> <span class="nc">AwsLambdaHook</span><span class="p">(</span><span class="n">AwsHook</span><span class="p">):</span> + <span class="sd">"""</span> +<span class="sd"> Interact with AWS Lambda</span> + +<span class="sd"> :param function_name: AWS Lambda Function Name</span> +<span class="sd"> :type function_name: str</span> +<span class="sd"> :param region_name: AWS Region Name (example: us-west-2)</span> +<span class="sd"> :type region_name: str</span> +<span class="sd"> :param log_type: Tail Invocation Request</span> +<span class="sd"> :type log_type: str</span> +<span class="sd"> :param qualifier: AWS Lambda Function Version or Alias Name</span> +<span class="sd"> :type qualifier: str</span> +<span class="sd"> :param invocation_type: AWS Lambda Invocation Type (RequestResponse, Event etc)</span> +<span class="sd"> :type invocation_type: str</span> +<span class="sd"> """</span> + + <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">function_name</span><span class="p">,</span> <span class="n">region_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">log_type</span><span class="o">=</span><span class="s1">'None'</span><span class="p">,</span> <span class="n">qualifier</span><span class="o">=</span><span class="s1">'$LATEST'</span><span class="p">,</span> + <span class="n">invocation_type</span><span class="o">=</span><span class="s1">'RequestResponse'</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> + <span class="bp">self</span><span class="o">.</span><span class="n">function_name</span> <span class="o">=</span> <span class="n">function_name</span> + <span class="bp">self</span><span class="o">.</span><span class="n">region_name</span> <span class="o">=</span> <span class="n">region_name</span> + <span class="bp">self</span><span class="o">.</span><span class="n">log_type</span> <span class="o">=</span> <span class="n">log_type</span> + <span class="bp">self</span><span class="o">.</span><span class="n">invocation_type</span> <span class="o">=</span> <span class="n">invocation_type</span> + <span class="bp">self</span><span class="o">.</span><span class="n">qualifier</span> <span class="o">=</span> <span class="n">qualifier</span> + <span class="nb">super</span><span class="p">(</span><span class="n">AwsLambdaHook</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> + + <span class="k">def</span> <span class="nf">get_conn</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> + <span class="bp">self</span><span class="o">.</span><span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_client_type</span><span class="p">(</span><span class="s1">'lambda'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">region_name</span><span class="p">)</span> + <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">conn</span> + +<div class="viewcode-block" id="AwsLambdaHook.invoke_lambda"><a class="viewcode-back" href="../../../../code.html#airflow.contrib.hooks.aws_lambda_hook.AwsLambdaHook.invoke_lambda">[docs]</a> <span class="k">def</span> <span class="nf">invoke_lambda</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">payload</span><span class="p">):</span> + <span class="sd">"""</span> +<span class="sd"> Invoke Lambda Function</span> +<span class="sd"> """</span> + + <span class="n">awslambda_conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_conn</span><span class="p">()</span> + + <span class="n">response</span> <span class="o">=</span> <span class="n">awslambda_conn</span><span class="o">.</span><span class="n">invoke</span><span class="p">(</span> + <span class="n">FunctionName</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">function_name</span><span class="p">,</span> + <span class="n">InvocationType</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">invocation_type</span><span class="p">,</span> + <span class="n">LogType</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">log_type</span><span class="p">,</span> + <span class="n">Payload</span><span class="o">=</span><span class="n">payload</span><span class="p">,</span> + <span class="n">Qualifier</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">qualifier</span> + <span class="p">)</span> + + <span class="k">return</span> <span class="n">response</span></div></div> +</pre></div> + + </div> + <div class="articleComments"> + + </div> + </div> + <footer> + + + <hr/> + + <div role="contentinfo"> + <p> + + </p> + </div> + Built with <a href="http://sphinx-doc.org/";>Sphinx</a> using a 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