[[add-data-guide]]
== Add Data Guide

`Add Data` in the Kibana Home application contains tutorials for setting up data flows in the Elastic stack.

Each tutorial contains three sets of instructions:

* `On Premise.` Set up a data flow when both Kibana and Elasticsearch are running on premise.
* `On Premise Elastic Cloud.` Set up a data flow when Kibana is running on premise and Elasticsearch is running on Elastic Cloud.
* `Elastic Cloud.` Set up a data flow when both Kibana and Elasticsearch are running on Elastic Cloud.

[float]
=== Creating a new tutorial
1. Create a new directory in the link:https://github.com/elastic/kibana/tree/master/src/core_plugins/kibana/server/tutorials[tutorials directory].
2. In the new directory, create a file called `index.js` that exports a function.
The function must return a JavaScript object that conforms to the link:https://github.com/elastic/kibana/blob/master/src/core_plugins/kibana/common/tutorials/tutorial_schema.js[tutorial schema].
3. Register the tutorial in link:https://github.com/elastic/kibana/blob/master/src/core_plugins/kibana/server/tutorials/register.js[register.js] by calling `server.registerTutorial(myFuncImportedFromIndexJs)`.
4. Add image assets to the link:https://github.com/elastic/kibana/tree/master/src/core_plugins/kibana/public/home/tutorial_resources[tutorial_resources directory].
5. Run Kibana locally to preview the tutorial.
6. Create a PR and go through the review process to get the changes approved.

[float]
==== Variables
String values can contain variables that are substituted when rendered. Variables are specified by `{}`.
For example: `{config.docs.version}` is rendered as `6.2` when running the tutorial in Kibana 6.2.

link:https://github.com/elastic/kibana/blob/master/src/core_plugins/kibana/public/home/components/tutorial/replace_template_strings.js#L23[Provided variables]

[float]
==== Markdown
String values can contain limited Markdown syntax.

link:https://github.com/elastic/kibana/blob/master/src/core_plugins/kibana/public/home/components/tutorial/content.js#L8[Enabled Markdown grammars]