We used to deploy kubernetes resources using the normal kubectl command for services, deployments, configmap...etc. Now we need to start using Helm 3 and integrate it to our pipelines, but when I try to run the helm upgrade command, it's giving the below error:
Error: rendered manifests contain a resource that already exists. Unable to continue with install: existing resource conflict: namespace: default
So, these resources were never created with helm as it was created normally with kubcetl apply command.
Just need to know how to used Helm in the pipeline without re-create the k8s resources. As the only workaround I found to get it working was to delete the resources and re-deploy them using Helm.
Below is the command I tried:
helm upgrade --atomic --debug --install --force test .
Thanks, Aly