Add basic developers guide for working with helm (#4511)

* Bump docusaurus version and versioning
- Bump docusaurus to latest 2.0 version
- Fix errors thrown up by new linting process
- Add version support, setup 4.0.0
- Enable dark mode and fix in home screen

* Move status_updates back into root project docs folder

* Fix links
- fix dead links
- ensure all links are relative (so work when versioned)

* Add basic developers guide for working with helm

* Fix post merge issue

website/docs/developer/deploy.md

@@ -0,0 +1,8 @@
+---
+title: Deploy Dev Guide
+sidebar_label: Overview
+---
+
+As described in the [Deploying Stratos](../overview.md) section there are a number of ways that Stratos can be deployed. From a development perspective some, like `cf push`, are simpler than others, like `helm install`.
+
+We're looking at expanding our documentation for all cases, what is found here is the start of that process.

website/docs/developer/developers-guide-helm.md

@@ -0,0 +1,59 @@
+---
+title: Helm Development Guide
+sidebar_label: Helm
+---
+
+
+:::info
+This document is currently in progress and will be expanded in the future.
+:::
+
+
+## Building Images
+
+The images references by the helm charts are built in two stages.
+
+### Base Images
+
+Changes to these happen infrequently, so not every dev cycle requires this step.
+
+1. Ensure your docker hub credentials are set
+   1. `docker login`
+1. Create and push images to docker hub
+   1. `cd deploy/stratos-base-images`
+   1. `./build-base-images.sh -o dockerhuborgname -p`
+       - `p` pushes the images to dockerhub. Replace `dockerhuborgname` with the docker hub org where test images should be pushed
+   1. Wait for script to complete, this may take a while
+
+:::note
+If you receive the error ``"--squash" is only supported on a Docker daemon with experimental features enabled`` during build enable
+experimental feature by
+1. Add `"experimental": true` to ~/.docker/config.json
+1. Restart docker - `sudo systemctl restart docker`
+1. `docker version` should show client with experimental feature enabled
+:::
+
+### All Other Images
+
+Changes to these will occur more often and are built upon the base images created above. This step is executed with the command command used
+to build the charts below.
+
+## Building Charts
+
+1. Ensure your docker hub credentials are set
+   1. `docker login`
+1. Create the charts, and create and push images to docker hub
+   1. `cd deploy/kubernetes`
+   1. `./build.sh -t 4.0.1 -o dockerhuborgname -p`
+      -`p` pushes the images to dockerhub. Replace `dockerhuborgname` with the docker hub org where test images should be pushed. This should match where your base images are
+      -`t` will tag the images with a version
+   1. The new charts with updated image references will be created in `deploy/kubernetes/helm-charts`
+
+### Testing built output
+
+1. `cd deploy/kubernetes`
+1. Install the usual way, with your namespace and values (if required). For example
+   ```
+   helm install console helm-chart --namespace=console --values stratos-values.yaml
+   ```
+

website/sidebars.js

@@ -39,6 +39,12 @@ module.exports = {
           'developer/backend',
         ]
       },
+      {
+        Deploy: [
+          'developer/deploy',
+          'developer/developers-guide-helm'
+        ]
+      },
       'developer/developers-guide-e2e-tests',
       'developer/developers-guide-env-tech',
     ],