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<img loading="lazy" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/gitssh/ssh-key-generation.png" alt="Image" class="img_ev3q"></p></li><li><p>Add the public key to your Looker git repo as a deploy key with read access (no need to provision write access). Follow the guide <a href="https://docs.github.com/en/developers/overview/managing-deploy-keys#deploy-keys" target="_blank" rel="noopener noreferrer">here</a> for that.
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<img loading="lazy" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/gitssh/git-deploy-key.png" alt="Image" class="img_ev3q"></p></li><li><p>Make note of the private key file, you will need to paste the contents of the file into the <strong>GitHub Deploy Key</strong> field later while setting up <a href="#ui-based-ingestion-recommended-for-ease-of-use">ingestion using the UI</a>.</p></li></ol><h3 class="anchor anchorWithStickyNavbar_LWe7" id="setup-your-connection-mapping">Setup your connection mapping<a href="#setup-your-connection-mapping" class="hash-link" aria-label="Direct link to Setup your connection mapping" title="Direct link to Setup your connection mapping"></a></h3><p>The connection mapping enables DataHub to accurately generate lineage to your upstream warehouse.
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It maps Looker connection names to the platform and database that they're pointing to.</p><p>There's two ways to configure this:</p><ol><li>Provide Looker <strong>admin</strong> API credentials, and we'll automatically map lineage correctly. Details on how to do this are below.</li><li>Manually populate the <code>connection_to_platform_map</code> and <code>project_name</code> configuration fields. See the starter recipe for an example of what this should look like.</li></ol><h4 class="anchor anchorWithStickyNavbar_LWe7" id="optional-create-an-api-key-with-admin-privileges">[Optional]<!-- --> Create an API key with admin privileges<a href="#optional-create-an-api-key-with-admin-privileges" class="hash-link" aria-label="Direct link to optional-create-an-api-key-with-admin-privileges" title="Direct link to optional-create-an-api-key-with-admin-privileges"></a></h4><p>See the <a href="https://docs.looker.com/reference/api-and-integration/api-auth#authentication_with_an_sdk" target="_blank" rel="noopener noreferrer">Looker authentication docs</a> for the steps to create a client ID and secret.
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You need to ensure that the API key is attached to a user that has Admin privileges.</p><p>If you don't want to provide admin API credentials, you can manually populate the <code>connection_to_platform_map</code> and <code>project_name</code> in the ingestion configuration.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="ingestion-options">Ingestion Options<a href="#ingestion-options" class="hash-link" aria-label="Direct link to Ingestion Options" title="Direct link to Ingestion Options"></a></h3><p>You have 3 options for controlling where your ingestion of LookML is run.</p><ul><li>The DataHub UI (recommended for the easiest out-of-the-box experience)</li><li>As a GitHub Action (recommended to ensure that you have the freshest metadata pushed on change)</li><li>Using the CLI (scheduled via an orchestrator like Airflow)</li></ul><p>Read on to learn more about these options.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="ui-based-ingestion-recommended-for-ease-of-use">UI-based Ingestion <!-- -->[Recommended for ease of use]<a href="#ui-based-ingestion-recommended-for-ease-of-use" class="hash-link" aria-label="Direct link to ui-based-ingestion-recommended-for-ease-of-use" title="Direct link to ui-based-ingestion-recommended-for-ease-of-use"></a></h3><p>To ingest LookML metadata through the UI, you must set up a GitHub deploy key using the instructions in the section <a href="#recommended-create-a-github-deploy-key">above</a>. Once that is complete, you can follow the on-screen instructions to set up a LookML source using the Ingestion page.
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The following video shows you how to ingest LookML metadata through the UI and find the relevant information from your Looker account.</p><div style="position:relative;padding-bottom:56.25%;height:0"><iframe src="https://www.loom.com/embed/c66dd625de7f48b39005e0eb9c345f5a" frameborder="0" webkitallowfullscreen="" mozallowfullscreen="" style="position:absolute;top:0;left:0;width:100%;height:100%"></iframe></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="github-action-based-ingestion-recommended-for-push-based-integration">GitHub Action based Ingestion <!-- -->[Recommended for push-based integration]<a href="#github-action-based-ingestion-recommended-for-push-based-integration" class="hash-link" aria-label="Direct link to github-action-based-ingestion-recommended-for-push-based-integration" title="Direct link to github-action-based-ingestion-recommended-for-push-based-integration"></a></h3><p>You can set up ingestion using a GitHub Action to push metadata whenever your main Looker GitHub repo changes.
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The following sample GitHub action file can be modified to emit LookML metadata whenever there is a change to your repository. This ensures that metadata is already fresh and up to date.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="sample-github-action">Sample GitHub Action<a href="#sample-github-action" class="hash-link" aria-label="Direct link to Sample GitHub Action" title="Direct link to Sample GitHub Action"></a></h4><p>Drop this file into your <code>.github/workflows</code> directory inside your Looker GitHub repo.
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You need to set up the following secrets in your GitHub repository to get this workflow to work:</p><ul><li>DATAHUB_GMS_HOST: The endpoint where your DataHub host is running</li><li>DATAHUB_TOKEN: An authentication token provisioned for DataHub ingestion</li><li>LOOKER_BASE_URL: The base url where your Looker assets are hosted (e.g. <a href="https://acryl.cloud.looker.com" target="_blank" rel="noopener noreferrer">https://acryl.cloud.looker.com</a>)</li><li>LOOKER_CLIENT_ID: A provisioned Looker Client ID</li><li>LOOKER_CLIENT_SECRET: A provisioned Looker Client Secret</li></ul><div class="language-yml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> lookml metadata upload</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">on</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># Note that this action only runs on pushes to your main branch. If you want to also</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic"># run on pull requests, we'd recommend running datahub ingest with the `--dry-run` flag.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">push</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">branches</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain"> main</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">release</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">types</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">published</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> edited</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">workflow_dispatch</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">jobs</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="
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Consider the following scenario:</p><ul><li>Your primary project refers to a remote project called <code>my_remote_project</code></li><li>The remote project is homed in the GitHub repo <code>my_org/my_remote_project</code></li><li>You have provisioned a GitHub deploy key and stored the credential in the environment variable (or UI secret), <code>${MY_REMOTE_PROJECT_DEPLOY_KEY}</code></li></ul><p>In this case, you can add this section to your recipe to activate multi-project LookML ingestion.</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">source:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> type: lookml</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> config:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> ... other config variables</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> project_dependencies:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> my_remote_project:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> repo: my_org/my_remote_project</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> deploy_key: ${MY_REMOTE_PROJECT_DEPLOY_KEY}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>Under the hood, DataHub will check out your remote repository using the provisioned deploy key, and use it to navigate includes that you have in the model files from your primary project.</p><p>If you have the remote project checked out locally, and do not need DataHub to clone the project for you, you can provide DataHub directly with the path to the project like the config snippet below:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">source:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> type: lookml</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> config:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> ... other config variables</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> project_dependencies:</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> my_remote_project: /path/to/local_git_clone_of_remote_project</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox
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Note that there's currently only one known discrepancy between the two parsers, and it's related to using <a href="https://github.com/joshtemple/lkml/issues/90" target="_blank" rel="noopener noreferrer">leading colons in blocks</a>.</p><p>To check if DataHub can parse your LookML file syntax, you can use the <code>lkml</code> CLI tool. If this raises an exception, DataHub will fail to parse the file.</p><div class="language-sh codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sh codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">pip install lkml</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">lkml path/to/my_file.view.lkml</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="code-coordinates-1">Code Coordinates<a href="#code-coordinates-1" class="hash-link" aria-label="Direct link to Code Coordinates" title="Direct link to Code Coordinates"></a></h3><ul><li>Class Name: <code>datahub.ingestion.source.looker.lookml_source.LookMLSource</code></li><li>Browse on <a href="https://github.com/datahub-project/datahub/blob/master/metadata-ingestion/src/datahub/ingestion/source/looker/lookml_source.py" target="_blank" rel="noopener noreferrer">GitHub</a></li></ul><h2>Questions</h2><p>If you've got any questions on configuring ingestion for Looker, feel free to ping us on <a href="https://datahub.com/slack" target="_blank" rel="noopener noreferrer">our Slack</a>.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="slackUtm_uoBr"><div class="slackUtm_uoBr"><hr>Need more help? Join the conversation in <a href="https://datahub.com/slack?utm_source=docs&utm_medium=footer&utm_campaign=docs_footer&utm_content=docs/generated/ingestion/sources/looker">Slack!</a></div></div><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/datahub-project/datahub/blob/master/docs/generated/ingestion/sources/looker.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_VsjB"></div></div></footer><div class="feedbackWrapper_mUHF"><div class="feedbackWidget_PX4d"><div class="feedbackButtons_wn3V"><strong>Is this page helpful?</strong><div><button class="feedbackButton_UgQs"><span role="img" aria-label="like" class="anticon anticon-like"><svg viewBox="64 64 896 896" focusable="false" data-icon="like" width="1em" height="1em" fill="currentColor" aria-hidden="true"><path d="M885.9 533.7c16.8-22.2 26.1-49.4 26.1-77.7 0-44.9-25.1-87.4-65.5-111.1a67.67 67.67 0 00-34.3-9.3H572.4l6-122.9c1.4-29.7-9.1-57.9-29.5-79.4A106.62 106.62 0 00471 99.9c-52 0-98 35-111.8 85.1l-85.9 311H144c-17.7 0-32 14.3-32 32v364c0 17.7 14.3 32 32 32h601.3c9.2 0 18.2-1.8 26.5-5.4 47.6-20.3 78.3-66.8 78.3-118.4 0-12.6-1.8-25-5.4-37 16.8-22.2 26.1-49.4 26.1-77.7 0-12.6-1.8-25-5.4-37
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