It can use sqlite (single master), or for cluster it can use pg, or mysql, but etcd by default

No, it's not. Read the docs[1] - sqlite is the default.

"Lightweight datastore based on sqlite3 as the default storage backend. etcd3, MySQL, and Postgres are also available."

[1]https://docs.k3s.io/

This thread is about using multi-machine clusters, and sqlite cannot be used for multi-machine clusters in k3s. etcd is the default when starting k3s in cluster mode [1].

[1] https://docs.k3s.io/datastore

No, this thread is about multiple containers across machines. What you describe is multi-master for the server. You can run multple agents across serveral nodes therefore clustering the container workload across multiple container hosting servers. Multi-master is something different.

The very first paragraph of the first comment you replied to is about multi-master HA. The second sentence in that comment is about “every machine is equal”. k3s with sqlite is awesome, but it cannot do that.

apologies, I misread this and gave a terse reply.

See https://github.com/k3s-io/kine, k3s uses this to shim etcd to MySQL, Postgres and sqlite

Gitlab supports references between projects as well, we use it at work all the time.

And F# which is more pythonlike already supports this via dotnet fsi - see https://learn.microsoft.com/en-us/dotnet/fsharp/tools/fsharp...

If you want it to start up quickly, you can easily covert it to native code using https://learn.microsoft.com/en-us/dotnet/core/deploying/

Yep, invented in 1979 and also the core data structure of crypto block chains

We use it in a production system on the aspnetcore stack, and it's been bulletproof for a number of years.

We have lots of proxies in the way, and old tech on certain networks, and at this moment we are 97% websockets, 2% server side events, 1% long polling, and it's all transparent to me, brilliant.

I've got a couple of free arm machines setup as a cluster for learning k8 + a few LB in front of it. I use k3s, with pg rather than etcd. Been a great learning experience.

Perfect, run loads of f# and c# on Linux, and have for years

Yep, it's a cluster OS. If you need to run a cluster, you need to explore and understand the trade offs of k8s versus other approaches. Personally I run a small cluster on k3s, for internal tools, and love it. Yes it's a load of new abstractions to learn, but once learnt if really helps in designing large scalable systems. I manage lots of pet machines and VMs for clients, and it would be soooo much easier on k8.