Add cert-manager plugin

[yolossn]

Testing the Cert-Manager Plugin

Prerequisites

• A Kubernetes cluster with cert-manager installed
  • If you need to install cert-manager, follow the official installation guide
• Node.js and npm installed on your system

Steps to Test

1. Clone the plugins repository:

   git clone https://github.com/headlamp-k8s/plugins.git

2. Switch to the cert-manager branch:

   git checkout cert-manager

3. Navigate to the cert-manager plugin directory:

   cd cert-manager

4. Install the required dependencies:

   npm install

5. Start the plugin in development mode:

   npm run start

6. Launch Headlamp. You should now see "Cert Manager" in the sidebar.

Optional: Generate Cert-Manager Types

To test the plugin with sample cert-manager resources:

1. Navigate to the test-files directory:

   cd test-files

2. Apply the sample configurations to your cluster:

   kubectl apply -f clusterIssuer.yaml
   kubectl apply -f issuer.yaml
   kubectl apply -f certificate.yaml
   kubectl apply -f order.yaml
   kubectl apply -f app.yaml

This will create:

• A ClusterIssuer for Let's Encrypt staging
• An Issuer for Let's Encrypt staging
• Two Certificate resources (one using ClusterIssuer, one using Issuer)
• An Order resource
• Sample Nginx deployment with Ingress configurations

Demo

cert-manager.mp4

[juv]

This is great 👍

[joaquimrocha]

Left a couple of small comments. The plugin should also display a special error if the cert-manager is not installed.

[yolossn]

Addressed the comments and added cert-manager not detected banner.

[knrt10]

Awesome work @yolossn. Apart from some suggestions, everything looks great

[sniok]

good stuff! left a couple of comments

[illume]

Left a couple of notes on some possible improvements for the README.

Documenting the components/functions/fields would be useful.