Add Plural deployment instructions (#9455)

* Add initial Plural installation instructions.

* Add to SUMMARY.md

Author: avaidyanatha

docs/SUMMARY.md

@@ -14,6 +14,7 @@
   * [On Azure(VM)](deploying-airbyte/on-azure-vm-cloud-shell.md)
   * [On GCP (Compute Engine)](deploying-airbyte/on-gcp-compute-engine.md)
   * [On Kubernetes (Beta)](deploying-airbyte/on-kubernetes.md)
+  * [On Plural (Beta)](deploying-airbyte/on-plural.md)  
   * [On Oracle Cloud Infrastructure VM](deploying-airbyte/on-oci-vm.md)
   * [On Digital Ocean Droplet](deploying-airbyte/on-digitalocean-droplet.md)
 * [Operator Guides](operator-guides/README.md)

docs/deploying-airbyte/on-kubernetes.md

@@ -4,6 +4,10 @@
 
 Airbyte allows scaling sync workloads horizontally using Kubernetes. The core components \(api server, scheduler, etc\) run as deployments while the scheduler launches connector-related pods on different nodes.
 
+## Quickstart
+
+If you don't want to configure your own K8s cluster and Airbyte instance, you can use the free, open-source project [Plural](https://www.plural.sh/) to bring up a K8s cluster and Airbyte for you. Use [this guide](on-plural.md) to get started.
+
 ## Getting Started
 
 ### Cluster Setup

docs/deploying-airbyte/on-plural.md

@@ -0,0 +1,43 @@
+# On Plural (Beta)
+
+## Overview
+
+Plural is a unified application deployment platform that makes it easy to run open-source software on Kubernetes. It aims to make applications as portable as possible, without sacrificing the ability for the users to own the applications they desire to use.
+
+## Getting Started
+
+First, install Plural and the Plural CLI by following steps 1, 2, and 3 of the instructions [here](https://docs.plural.sh/getting-started). Through this, you will also configure your cloud provider and the domain name under which your
+application will be deployed to.
+
+Then create a fresh Git repo to store your Plural installation and from within the repo, run:
+
+```bash
+plural init
+```
+
+This configures your installation and cloud provider for the repo. You're now ready to install Airbyte on your Plural repo!
+
+## Installing Airbyte
+
+To install Airbyte on your Plural repo, simply run:
+
+```bash
+plural bundle install airbyte airbyte-aws
+```
+
+The CLI will prompt you to choose whether or not you want to use Plural OIDC, which means you're using Plural as your identity provider for SSO.
+
+After this, run:
+
+```bash
+plural build
+plural deploy --commit "Initial Deploy."
+```
+
+## Accessing your Airbyte Installation
+
+Now, just head over to airbyte.SUBDOMAIN_NAME.onplural.sh to access the Airbyte UI.
+
+## Monitoring your Installation
+
+To monitor and manage your Airbyte installation, head over to the Plural control panel at console.YOUR_ORGANIZATION.onplural.sh.