Skaronator / kustomize-namespace-bug

Kustomize Namespace Bug

Bug report: kubernetes-sigs/kustomize#5566

Kustomize doesn't pass down the namespace when defined on the top level. This causes inconsitent YAML files to be built.

You can easily test it yourself by running kustomize build . --enable-helm in the root of this repository.

kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization

helmGlobals:
  chartHome: ./charts

namespace: the-actual-namespace   # <- defines namespace for all resources

helmCharts:
- name: service
  releaseName: service
  valuesFile: values.yaml

Helm Chart Template

apiVersion: v1
kind: Service
metadata:
  name: the-bug
  namespace: {{ .Release.Namespace }}
  annotations:
    this-service-is-deployed-in-namespace: {{ .Release.Namespace }}

Result

$ kustomize build . --enable-helm
apiVersion: v1
kind: Service
metadata:
  annotations:
    this-service-is-deployed-in-namespace: default # <- {{ .Release.Namespace }} still points to "default"
  name: the-bug
  namespace: the-actual-namespace                  # <- Namespace overwritten by Kustomization to the correct value