isabella232 / kontrast

kontrast

kubectl diff with pretty colours. Currently alpha - use at your own risk (kontrast doesn't do any write operations, so should be okay).

Installation

go install github.com/monzo/kontrast

Note: this takes a while [1]

Usage

kontrast my-manifest.yaml

Note on Developing

If you are running dep to introduce a new scheme from a custom Kubernetes resource type, we are aware of at least one upstream repository hosted in BitBucket and expecting mercurial to access. Without it installed, dep will likely hang and not provide any clues even under verbose mode.

On macOS, you can install it with Homebrew:

brew install mercurial

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[1] Why does it take so long to build/install? Why is the binary 150MB?

Kubernetes applies defaults to each created resource. The average manifest doesn't contain every possible option, so a lot of these defaults will show up as deltas. kontrast gets around this by applying scheme.Scheme.SetDefaults(obj), which essentially does the same operation as the Kubernetes apiserver when creating an object. Unfortunately this only works if the full apiserver code is imported (i.e. k8s.io/kubernetes/pkg/master which imports https://github.com/kubernetes/kubernetes/blob/master/pkg/master/import_known_versions.go)