kubernetes VS Juju

Kubernetes and Helm for deployment

3 .Learn about containerization and orchestration tools such as kubernetes and docker

It is cross-platform and therefore able to be installed on any of Windows / Mac / Linux. This must be one of their advantages. Supposed that some files defining a virtual machine or a pod (of Kubernetes) for grouping ones are delievered, we can develop on the same virtual enviroment with defferent workstations.

Docker is a DevOps containerization service that separates your code from the infrastructure it depends on. Docker is often coupled with Kubernetes, which helps you rapidly deploy, scale and manage your containers. Together, they administer rapid software delivery and take care of its scaling.

Kubernetes is an Open Source container orchestration system. Kubernetes' API provides a uniform control layer for managing containerized services. There is a lot of great material available that explains what Kubernetes is. See Further Reading at the end for some suggestions.

If it's not something you can figure out from kubernetes.io, then its not something that you have to worry about being on the test.

Intermediate knowledge of Flux, Kustomize and K8s

There's been a highly annoying kubectl port-forward heisenbug open for several years which smells an awful lot like one of these dark Go network layer corners. You get a good connection establish and some data flows, but at some random point it decides to drop. It's not annoying enough for any wizards to fix.

https://github.com/kubernetes/kubernetes/issues/74551

Well, like I said, I'm building a harvester/k8s cluster. So, the idea being that if one of the machines is busy or goes down, an other part of the cluster can pick up the slack. Basically, the 'Voltron' of computing, many pcs come together to form a more 'powerful' system. I can do this with any pc, but minis are good for homelabbing because they're cheap, don't take that much space, aren't that power hungry, and they still are powerful enough to run 90% of anything I throw at it, that isn't graphic intensive.

https://juju.is/

Each app is packaged in a charm which seems to be a yaml declaring inputs, dependencies and other meta data and optional python code that can respond to certain lifecycle hooks

https://discourse.charmhub.io/t/implementing-relations/1051

   name: my-node-app

Kubernetes Custom Resources were created to allow the Kubernetes API to be extended for domain-specific logic, by defining new resource types and controllers. OSS frameworks like operator-sdk, kubebuilder and juju were created to simplify the creation of custom resources and their controllers. Tools built with these frameworks came to be known as Operators.

At Canonical I work on two open-source projects written in Go: Juju, a large cloud-based application deployment tool, and Pebble, a small Linux service manager. Both include CLI clients and API-based server daemons. Juju in particular is a large distributed system.

Are you talking about this[1]?

[1] https://juju.is/