Kubernetes
I spent at least an hour looking at Kubernetes. I did not see a reason to use it over Docker Swarm so I am back on that. Don't even bother to read the rest of this page.
I started with plain Docker then moved to using Docker Compose so that I could manage groups of containers.
When I found out healthcheck in Docker and Docker Compose reported status but would not restart unhealthy container(s) for me, I started looking at Docker Swarm.
Months and years passed and Kubernetes became the hip thing so here I am, trying to jump past Docker Swarm straight to Kubernetes. Henceforth "K8s". An example of that "time passing" thing, I spent a year making ArcGIS Enterprise work in Docker Compose (and never finished), now Esri supports it in Kubernetes.
Single node?
Well, at this moment in time all I want is a working healthcheck / restart thing. Maybe K8s offers a nice web interface? I have no idea. Once I have a single node functioning 100%, I can think about > 1 node. (I have Raspberry Pis!!!)
Even if you pine for a life in the Cloud with hundreds or thousands of servers at your beck and call, a single node is a good starting point.
Here is a guide! I love guides. https://bell-sw.com/announcements/2022/09/14/how-to-create-a-single-node-kubernetes-cluster/ Dmitry makes the case for a single node.
For a test, what I want is
- Varnish as a reverse proxy, with HTTPS supported.
- A way to maintain the certificates for HTTPS (certbot)
- A sample web server.
Controller
I am going with that guide's suggestions so, it looks like I can try out minikube on Bellman.
Resources
The home page. https://kubernetes.io/
