docs: Include Kubeflow deployment guide

Include a deployment guide that demonstrates how to use the Kubeflow
manifests cloned from the original repository to deploy Kubeflow.

Signed-off-by: Dimitris Poulopoulos <[email protected]>

docs/source/manual-deployment/index.rst

@@ -22,3 +22,4 @@ automate the Debian installation process using a preseed file.
    pxe-server
    debian-preseed
    kubernetes
+   kubeflow

docs/source/manual-deployment/kubeflow.md

@@ -0,0 +1,84 @@
+# Deploy Kubeflow
+
+In this section, you will learn how to deploy [Kubeflow](https://www.kubeflow.org/) on your
+Kubernetes cluster. Kubeflow is an open-source machine learning (ML) toolkit for Kubernetes. It is
+designed to simplify the process of training, serving, and deploying ML models at scale.
+
+Having a local instance of Kubeflow is useful for development and testing purposes. It allows you to
+experiment with different ML models and workflows without incurring the costs of cloud resources. It
+is an invaluable step for learning MLOps practices and understanding how Kubernetes works by
+examing a real-world use case.
+
+## What you'll need
+
+To complete this guide, you will need the following:
+
+* A running Kubernetes cluster. You can use the [Kubernetes cluster](kubernetes) you created in the
+  previous section.
+* Kustomize installed on your local machine. You can install it by following the instructions in the
+  [official documentation](https://kubectl.docs.kubernetes.io/installation/kustomize/).
+
+## Procedure
+
+Follow the steps below to deploy Kubeflow on your Kubernetes cluster:
+
+1. Clone the Kubeflow manifests repository:
+
+    ```console
+    user:~$ git clone https://github.com/kubeflow/manifests.git
+    ```
+
+1. Change to the manifests directory:
+
+    ```console
+    user:~$ cd manifests
+    ```
+
+1. Checkout a specific version of the Kubeflow manifests repository:
+
+    ```console
+    user:~/manifests$ git checkout tags/v1.8.0
+    ```
+
+    ```{note}
+    This documentation uses version 1.8.0 of the Kubeflow manifests. You can replace `v1.8.0` with
+    the version you want to use.
+    ```
+
+1. Deploy Kubeflow using the Kustomize:
+
+    ```console
+    user:~/manifests$ while ! kustomize build example | kubectl apply -f -; do echo "Retrying to apply resources"; sleep 10; done
+    ```
+
+    ```{note}
+    The `while` loop retries the `kubectl apply` command until it succeeds. The whole process can
+    take up to 10 minutes.
+    ```
+
+## Verify
+
+Verify that Kubeflow is running.
+
+1. Check the status of the pods in the `kubeflow` namespace:
+
+    ```console
+    user:~$ kubectl get pods -n kubeflow
+    ```
+
+    ```{note}
+    The output should show a list of pods running in the `kubeflow` namespace.
+    ```
+
+1. Port-forward the Istio Ingress Gateway service to access the Kubeflow dashboard:
+
+    ```console
+    user:~$ kubectl port-forward svc/istio-ingressgateway -n istio-system 8080:80
+    ```
+
+1. Open a web browser and navigate to `http://localhost:8080`. You should see the Kubeflow
+   dashboard.
+
+    ```{note}
+    The default username is `[email protected]` and the default password is `12341234`.
+    ```