If you are working on a helm chart, however, you need to make customizations or debug in a more native way. An alternative is to convert it to kubernetes SDK templates.
Requirements
- Kubernetes(1.16+)
- helm (3+)
- kubectl(1.16+)
The process is simple:
(mongodb example)
1 Install desired chart generic release
- $ kubectl create ns mgodb-ns
- $ helm install mongodb --namespace mgodb-ns stable/mongodb
2 Extract default generated chart values from the release
- $ helm get values mongodb -a --output yaml > values.yaml
3 Convert the chart to template
- $ helm template --values ./values.yaml --output-dir \
./manifests stable/mongodb
OUTPUT:
wrote ./manifests/mongodb/templates/secrets.yaml
wrote ./manifests/mongodb/templates/pvc-standalone.yaml
wrote ./manifests/mongodb/templates/svc-standalone.yaml
wrote ./manifests/mongodb/templates/deployment-standalone.yaml
Now you can work on native SDK k8s yamls at the directory manifests/mongodb/templates/
4 Don't forget to delete the generic release
- $ helm uninstall mongodb
- $ kubectl delete ns mgodb-ns
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