* We use cert-manager to manage LetsEncrypt certs, you only need to add this annotation to your Ingress Controller for it to manage your cert,
<pre>
ubuntu@k8s:~$ k edit -n mattermost ingress/mattermost-ingress
[...]
metadata:
annotations:
cert-manager.io/cluster-issuer: letsencrypt
[...]</pre>
=== Debug ===