Add Docusaurus site source

.gitignore

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+# Dependencies
+/node_modules
+
+# Production
+/build
+
+# Generated files
+.docusaurus
+.cache-loader
+
+# Misc
+.env
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Docs
+versioned_docs/*
+!versioned_docs/.gitkeep
+versioned_sidebars/*
+!versioned_sidebars/.gitkeep
+docs/*
+!docs/.gitkeep
+sidebars.json
+static/assets/*
+versions.json
+data/*
+!data/.gitkeep
+
+# Migration node dependencies
+.build

.gitmodules

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+[submodule "content/14.x"]
+	path = content/14.x
+	url = https://github.com/gravitational/teleport/
+	branch = branch/v14
+[submodule "content/15.x"]
+	path = content/15.x
+	url = https://github.com/gravitational/teleport/
+	branch = branch/v15
+[submodule "content/16.x"]
+	path = content/16.x
+	url = https://github.com/gravitational/teleport/
+	branch = branch/v16
+[submodule "content/17.x"]
+	path = content/17.x
+	url = https://github.com/gravitational/teleport/
+	branch = master

.nvmrc

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+v20.12.2

README.md

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-# docs-website
-Teleport documentation website using Docusaurus
+# Website
+
+This a port of the Teleport docs from the original custom engine to [Docusaurus](https://docusaurus.io/).
+
+## Installation
+
+```
+$ yarn
+```
+
+Create `.env` file with variables: `SANITY_PROJECT_ID` and `SANITY_DATASET` tom make menu and events work.
+
+## Local Development
+
+```
+$ yarn start
+```
+
+This command starts a local development server and opens up a browser window. Most changes are reflected live without having to restart the server.
+
+## Build
+
+```
+$ yarn build
+```
+
+This command generates static content into the `build` directory and can be served using any static contents hosting service.
+
+## Deployment
+
+Deployment happens automatically to commits to the `main` branch. Deploy is woriking thought AWS Amplify.
+
+Settings for AWS Amplify are following:
+
+1. `nodejs` 20 and `yarn` v1.22.22.
+2. Build command `yarn build`
+4. Build results folder `build`
+5. Following env variables should be set: `INKEEP_API_KEY`, `INKEEP_INTEGRATION_ID`, `INKEEP_ORGANIZATION_ID`, `YOUTUBE_API_KEY`, `SANITY_PROJECT_ID`, `SANITY_DATASET`.
+6. This variable should be set increase nodejs memory `NODE_OPTIONS=--max-old-space-size=8192`
+7. Add the following redirect to make 404 work:
+    - Source address: `/<*>` 
+    - Target address: `/404.html`
+    - Type `404 (Rewrite)`
+
+## Architecture overview
+
+Current setup is made with the goal to make this project backward compatible with the original [docs engine](https://github.com/gravitational/docs) so they can run in parallel until transition period is not over.
+
+To make it possible, we convert content from the orginal format to the Docusaurus format at the build time and also use some of the orignal plugins.
+
+How it works under the hood:
+
+1. We store docs in the git submodules of the main `teleport` repo as in the original setup. Submodules are fetched inside `content` folder to the subfolders named after the teleport versions `15.x`, `16.x`, etc. Then we build the docs we update submodules to the latest version.
+2. Info about versions, their status and original branches are manually added to the `config.json` file. See version config description below.
+3. To make old docs work with Ducsaurus we need to move files to correct location and also generate a bunch of config files. To do it we use `scripts/prepare-files.mts` file. It does the following based on `config.json` content:
+    1. Move mdx files, except `includes` to the `versioned_docs/version-{name}` folder for the non-current versions.
+    2. Move mdx files, except `includes` to the `docs` folder for the `current` version.
+    3. Create `versioned_sidebars/version-{name}-sidebars.json` configs for sidebars of the non-current versions.
+    4. Create `sidebars.json` config for sidebar of the `current` version.
+    5. Create `versions.json` file with the list of non-current versions.
+4. To make old docs work with Docusaurus we also need to run them through a bunch of custom plugins:
+    1. `remark-includes` - plugin from the old docs to work with the `(!filepath!)` syntax.
+    2. `remark-variables` - plugin from the old docs to work with the `(=variable=)` syntax.
+    3. `remark-update-asset-paths` - this plugn updates paths to the assets from new folders to the `content/{version}` folders.
+    4. `remark-update-tags` - this plugin replaces custom components used in the old docs to their Docuaaurus alternatives or removes them completely.
+
+Everything else is more or less straightforward Docusaurus code.
+
+### Folder structure
+
+`content` – folder for docs content.
+`scripts` – helper CLI scripts.
+`server` – code for plugins, and config parsing.
+`src` - forntend-related files.
+`src/component` – components ported from the old site, mostly header-related.
+`src/styles` – css used in header.
+`src/theme` – overrides for default theme files of Docusaurus
+`src/utls` – client-side utils.
+`staitc` - static files for the site: manifests, favicons, etc.
+
+`docs`, `versioned_docs` are `versioned_sidebars` – folders for docs content that will be automatically populated by script.
+
+`data` is a folder for sanity content.
+
+### `config.json` format
+
+```
+type Version = {
+    name: string; // should be the same as the folder in `content`
+    branch: string; // name of the original git branch
+    deprecated: boolean; // Unsupported versions
+    latest: boolean; // Last officially released version
+    current: boolean; // Next version currently in development
+}
+
+type Config = {
+    versions: Version[]
+}
+```
+
+Only non-deprecated versions are built in the docs. 
+
+If no versions are marked as `current`/`latest`, last version in alphabetical order is marked as it.
+
+### CLI commands
+
+`yarn git-update` – update git modules.
+`yarn prepare-files` – copy files from `content` to docusaurus folders.
+`yarn prepare-sanity-data` - fetching and saving data form navigation for Sanity.
+`yarn start` – start server in dev mode.
+`yarn build` - buld static site.
+`yarn swizzle` - used to eject files from default Docusaurus theme to `src/theme` folder. `see [swizzling](https://docusaurus.io/docs/swizzling).
+`yarn serve` – server static files.
+`yarn typecheck` - check types.
+
+For other commands see [Docusaurus docs](https://docusaurus.io/docs/cli#docusaurus-cli-commands).

babel.config.js

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+module.exports = {
+  presets: [require.resolve('@docusaurus/core/lib/babel/preset')],
+};

config.json

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+{
+  "versions": [
+    {
+      "name": "4.4",
+      "branch": "branch/4.4",
+      "deprecated": true
+    },
+    {
+      "name": "5.0",
+      "branch": "branch/5.0",
+      "deprecated": true
+    },
+    {
+      "name": "6.0",
+      "branch": "branch/v6.0",
+      "deprecated": true
+    },
+    {
+      "name": "6.1",
+      "branch": "branch/v6.1",
+      "deprecated": true
+    },
+    {
+      "name": "6.2",
+      "branch": "branch/v6.2",
+      "deprecated": true
+    },
+    {
+      "name": "7.x",
+      "branch": "branch/v7",
+      "deprecated": true
+    },
+    {
+      "name": "8.x",
+      "branch": "branch/v8",
+      "deprecated": true
+    },
+    {
+      "name": "9.x",
+      "branch": "branch/v9",
+      "deprecated": true
+    },
+    {
+      "name": "10.x",
+      "branch": "branch/v10",
+      "deprecated": true
+    },
+    {
+      "name": "11.x",
+      "branch": "branch/v11",
+      "deprecated": true
+    },
+    {
+      "name": "12.x",
+      "branch": "branch/v12",
+      "deprecated": true
+    },
+    {
+      "name": "13.x",
+      "branch": "branch/v13",
+      "deprecated": true
+    },
+    {
+      "name": "14.x",
+      "branch": "branch/v14"
+    },
+    {
+      "name": "15.x",
+      "branch": "branch/v15"
+    },
+    {
+      "name": "16.x",
+      "branch": "master",
+      "latest": true
+    },
+    {
+      "name": "17.x",
+      "branch": "master",
+      "current": true
+    }
+  ]
+}