docs: add index page and related stuff for jupyter tutorials

.gitignore

@@ -27,4 +27,4 @@ README
 integration-tests/gen-scripts/
 /bin/
 *.hprof
-*.ipynb_checkpoints/
+**/.ipynb_checkpoints/

docs/tutorials/tutorial-jupyter-index.md

@@ -0,0 +1,71 @@
+---
+id: tutorial-jupyter-index
+title: "Jupyter Notebook tutorials"
+---
+
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  -->
+
+<!-- tutorial-jupyter-index.md and examples/quickstart/juptyer-notebooks/README.md share a lot of the same content. If you make a change in one place, update the other too. -->
+
+You can try out the Druid APIs using the Jupyter Notebook-based tutorials. These tutorials provide snippets of Python code that you can use to run calls against the Druid API to complete the tutorial.
+
+## Prerequisites 
+
+Make sure you meet the following requirements before starting the Jupyter-based tutorials:
+
+- Python 3 
+
+- The `requests` package for Python. For example, you can install it with the following command: 
+
+   ```bash
+   pip3 install requests
+   ```
+
+- JupyterLab (recommended) or Jupyter Notebook running on a non-default port. By default, Druid and Jupyter both try to use port `8888,` so start Jupyter on a different port.
+
+  - Install JupyterLab or Notebook:
+
+     ```bash
+    # Install JupyterLab
+    pip3 install jupyterlab  
+    # Install Jupyter Notebook
+    pip3 install notebook
+     ```
+  -  Start Jupyter
+      - JupyterLab 
+         ```bash
+         # Start JupyterLab on port 3001
+        jupyter lab --port 3001
+          ```
+      - Jupyter Notebook
+          ```bash
+          # Start Jupyter Notebook on port 3001
+          jupyter notebook --port 3001
+      ```
+
+- An available Druid instance. You can use the `micro-quickstart` configuration described in [Quickstart (local)](./index.md). The tutorials assume that you are using the quickstart, so no authentication or authorization is expected unless explicitly mentioned.
+
+## Tutorials
+
+The notebooks are located in the [apache/druid repo](https://github.com/apache/druid/tree/master/examples/quickstart/jupyter-notebooks/). You can either clone the repo or download the notebooks you want individually. 
+
+The links that follow are the raw GitHub URLs, so you can use them to download the notebook directly, such as with `wget`, or manually through your web browser. Note that if you save the file from your web browser, make sure to remove the `.txt` extension.
+
+- [Introduction to the Druid API](https://raw.githubusercontent.com/apache/druid/master/examples/quickstart/jupyter-notebooks/api-tutorial.ipynb) walks you through some of the basics related to the Druid API and several endpoints.

examples/quickstart/jupyter-notebooks/README.md

@@ -0,0 +1,89 @@
+# Jupyter Notebook tutorials for Druid
+
+<!-- This README and the tutorial-jupyter-index.md file in docs/tutorials share a lot of the same content. If you make a change in one place, update the other too. -->
+
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  -->
+
+You can try out the Druid APIs using the Jupyter Notebook-based tutorials. These tutorials provide snippets of Python code that you can use to run calls against the Druid API to complete the tutorial.
+
+## Prerequisites
+
+Make sure you meet the following requirements before starting the Jupyter-based tutorials:
+
+- Python 3 
+
+- The `requests` package for Python. For example, you can install it with the following command: 
+
+   ```bash
+   pip3 install requests
+   ````
+
+- JupyterLab (recommended) or Jupyter Notebook running on a non-default port. By default, Druid and Jupyter both try to use port `8888,` so start Jupyter on a different port.
+
+  - Install JupyterLab or Notebook:
+
+     ```bash
+    # Install JupyterLab
+    pip3 install jupyterlab  
+    # Install Jupyter Notebook
+    pip3 install notebook
+     ```
+  -  Start Jupyter:
+      -  JupyterLab 
+         ```bash
+         # Start JupyterLab on port 3001
+         jupyter lab --port 3001
+         ```
+      - Jupyter Notebook
+        ```bash
+        # Start Jupyter Notebook on port 3001
+        jupyter notebook --port 3001
+        ```
+
+- An available Druid instance. You can use the `micro-quickstart` configuration described in [Quickstart (local)](../../../docs/tutorials/index.md). The tutorials assume that you are using the quickstart, so no authentication or authorization is expected unless explicitly mentioned.
+
+## Tutorials
+
+The notebooks are located in the [apache/druid repo](https://github.com/apache/druid/tree/master/examples/quickstart/jupyter-notebooks/). You can either clone the repo or download the notebooks you want individually. 
+
+The links that follow are the raw GitHub URLs, so you can use them to download the notebook directly, such as with `wget`, or manually through your web browser. Note that if you save the file from your web browser, make sure to remove the `.txt` extension.
+
+- [Introduction to the Druid API](api-tutorial.ipynb) walks you through some of the basics related to the Druid API and several endpoints.
+
+## Contributing
+
+If you build a Jupyter tutorial, you need to do a few things to add it to the docs in addition to saving the notebook in this directory. The process requires two PRs to the repo.
+
+For the first PR, do the following:
+
+1. Clear the outputs from your notebook before you make the PR. You can use the following command: 
+
+   ```bash
+   jupyter nbconvert --ClearOutputPreprocessor.enabled=True --inplace ./path/to/notebook/notebookName.ipynb
+   ```
+
+2. Create the PR as you normally would. Make sure to note that this PR is the one that contains only the Jupyter notebook and that there will be a subsequent PR that updates related pages.
+
+3. After this first PR is merged, grab the "raw" URL for the file from GitHub. For example, navigate to the file in the GitHub web UI and select **Raw**. Use the URL for this in the second PR as the download link.
+
+For the second PR, do the following:
+
+1. Update the list of [Tutorials](#tutorials) on this page and in the [ Jupyter tutorial index page](../../../docs/tutorials/tutorial-jupyter-index.md#tutorials) in the `docs/tutorials` directory. 
+2. Update `tutorial-jupyter-index.md` and provide the URL to the raw version of the file that becomes available after the first PR is merged.

website/.spelling

@@ -142,6 +142,7 @@ JVMs
 Joda
 JsonProperty
 Jupyter
+JupyterLab
 KMS
 Kerberized
 Kerberos

website/sidebars.json

@@ -23,6 +23,7 @@
       "tutorials/docker",
       "tutorials/tutorial-kerberos-hadoop",
       "tutorials/tutorial-msq-convert-spec",
+      "tutorials/tutorial-jupyter-index",
       "tutorials/tutorial-jdbc"
     ],
     "Design": [