konfa

Go application for interacting with k8s cluster, without having to use kubectl edit.

Heads up:

This is still a work in progress and in early experimental stage, don't try this on any live cluster. Been doing most of my tests on a local k3d cluster.

Verify your changes:

For whole deployment:

kubectl get deployment -n <namespace> -o yaml

For just configmap:

kubectl get configmaps -n <namespace> <configmapname> -o yaml

TODO:

Setup CLI Tool for interacting with application. Add following functionality:

• [High prio] Make this to a command so people can simply run konfa instead of running the source code and go run main.go
• Update configmap by specifying key and new value, instead of having to use Vim for jumping in and editing by hand. [Done]
• Update deployment related keys with new values, e.g konfa deployment replica newVal, where newVal is an integer. [Done]
• In general updates different kubernetes related config in a simpler way than having to use kubectl and specifying. [Done]
• konfa set namespace <name>, and therefore don't have to specify namespace anymore when updating certain kubernetes config. [Done]
• Add functionality for some kind of diff viewer, where the newly added config will show up with some nice color coding to show that entry X -> Y.
• Add some functionality for fetching config in a simpler way than having to run kubectl commands?
• Add tests ofc

Usage

Easy tool for running incident rehearsal / preperation, for quickly re-configuring cluster data without having to use kubectl edit + rollout restart.

Testing out locally:

Setup cluster:

k3d cluster create <yourclustername>

Example commands:

go run main.go config set <key> <value> --is-file=true --config=myconfig

go run main.go container nginx set resources.requests 400Mi

go run main.go --help

Future additions:

• Make it look nicer, maybe look into some lib like bubbletea?