Kustomize Wrapper

A wrapper for the Kubernetes Kustomize tool and related tooling.

• More readable one-liners
• Automatic linting (with integrated kubeval)
• Easy installation with pip (e.g. in combination with tox)

Installation

python3 -m pip install kustomize-wrapper

Why should I use this tool?

Forget about several kustomize calls, piping your calls into kubeval or kubectl apply commands. Using Kustomize is now even more pleasant!

Instead of:

lint:
  script:
  - kustomize build deployment/overlays/development | kubeval --strict
  - kustomize build deployment/overlays/integration | kubeval --strict
  - kustomize build deployment/overlays/production | kubeval --strict

You can now write:

lint:
  script:
  - kustomize deployment/overlays/* --lint strict

Instead of:

production:
  script:
  - cd deployment/base
  - kustomize edit set image IMAGE="foobar/application:${CI_COMMIT_SHA}"
  - cd ../..
  - kustomize build deployment/overlays/production | kubectl apply -f -

You can now write:

production:
  script:
  - kustomize deployment/overlays/production
      --edit deployment/base set image IMAGE="foobar/application:${CI_COMMIT_SHA}"
      --apply

Usage

kustomize --help

Philosophy:

• Build and lint by default
• Kustomize commands become CLI options
• Kubeval options become values of --lint option