I have very little knowledge of how kubernetes works and I’m trying to learn. I have some difficulties to understand how I can use kubernetes to deploy my DB (CouchDB) the reverse proxy (nginx) and the ssl certificate (letsencrypt with certbot-auto).

I run CentOS 8 and have installed podman for the containers. I can install each one in different containers within the same pod and I can make them communicate properly.

What I don’t understand is how can I use kubernetes to properly deploy all of these containers and scale them in a cluster.

My questions are the following:

• Where should I start to make kubernetes work with these three components? Should I install the three containers first with their configuration (the DB can be configured to handle clusters but my understanding is that kubernetes handles clusters. So I’m wondering if I have to configure the DB for the cluster and hence install two nodes)
• Should I install letsencrypt with certbot? I don’t understand how kubernetes can deploy new pods to have them work with letsencrypt automatically configured

If anyone can give me the steps to get this done it would be really great...I just don’t really know where to start and the docs and tutorials are a bit confusing.