tamalsaha/learn-helm-oci

learn-helm-oci

CRD

k apply -f https://github.com/fluxcd/source-controller/raw/v0.30.1/config/crd/bases/source.toolkit.fluxcd.io_helmrepositories.yaml

> helm create charts/hello-oci
> helm package charts/hello-oci
> helm push hello-oci-0.1.0.tgz oci://index.docker.io/tigerworks
Pushed: index.docker.io/tigerworks/hello-oci:0.1.0
Digest: sha256:3ecff51681ff961501afa3c554a5d7a22fe12097008af75adbdf48568309a441

helm template my-release oci://registry-1.docker.io/tigerworks/hello-oci --version 0.1.0

helm template my charts/hello-oci \
  --values=./charts/hello-oci/one.yaml \
  --values=./charts/hello-oci/two.yaml

helm template my charts/hello-oci \
  --values=./charts/hello-oci/two.yaml \
  --values=./charts/hello-oci/one.yaml

Pull charts by SHA / Digest

helm/helm#10799

FluxCD

• https://fluxcd.io/flux/components/source/helmrepositories/#helm-oci-repository

• https://fluxcd.io/flux/faq/#can-i-use-flux-helmreleases-without-gitops

Install FluxCD CRDs

k apply -f https://github.com/fluxcd/source-controller/raw/v0.30.1/config/crd/bases/source.toolkit.fluxcd.io_helmrepositories.yaml
k apply -f https://github.com/fluxcd/helm-operator/raw/v1.4.4/deploy/crds.yaml

flux install \
--namespace=flux-system \
--network-policy=false \
--components=source-controller,helm-controller

# docker login --username ${USERNAME} --password ${DOCKER_TOKEN}

kubectl create secret docker-registry regcred \
 --docker-server=registry-1.docker.io \
 --docker-username=tigerworks \
 --docker-password=$DOCKERHUB_TOKEN

> k apply -f oci-reg.yaml
> k get helmrepository -A
NAMESPACE   NAME      URL                                     AGE     READY   STATUS
default     podinfo   oci://registry-1.docker.io/tigerworks   8m32s   True    Helm repository is ready

> k apply -f oci-release.yaml
> k get helmreleases -A
NAMESPACE   NAME         AGE     READY   STATUS
default     my-release   3m11s   True    Release reconciliation succeeded

FileServer

• GET "/packageview"

• http://localhost:4000/packageview?url=https://raw.githubusercontent.com/bytebuilders/ui-wizards/master/stable/&name=kubedbcom-mongodb-editor-options&version=v0.1.0

• GET "/packageview/files"

• http://localhost:4000/packageview/files?url=https://raw.githubusercontent.com/bytebuilders/ui-wizards/master/stable/&name=kubedbcom-mongodb-editor-options&version=v0.1.0

• GET "/packageview/files/*"

• http://localhost:4000/packageview/files/templates/db.yaml?url=https://raw.githubusercontent.com/bytebuilders/ui-wizards/master/stable/&name=kubedbcom-mongodb-editor-options&version=v0.1.0

• http://localhost:4000/packageview/files/values.yaml?url=https://raw.githubusercontent.com/bytebuilders/ui-wizards/master/stable/&name=kubedbcom-mongodb-editor-options&version=v0.1.0&format=json

Test Caching

• https://stackoverflow.com/a/14842553/244009

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