Helm charts

[didierofrivia]

This PR introduces a way to manage an Authorino Operator Helm Chart. This is not meant to replace the way we are building and delivering our manifests (Kustomize, OLM) but to provide an alternative (complementary) way of delivering the operator.

This early implementation uses Kustomize to create the chart template, instead of creating and maintaining new ones with Helm, to later customize the Helm only settings with its values.yaml

NOTES

• This chart (and every other operator chart we package in the future: Limitador, DNS, etc) bundles only the operator in the same fashion OLM does.
• The operator version matches the chart version
• This first release doesn't use helm templating, it provides only the manifests previously built by Kustomize.
• The sole repository for all our operator charts will be hosted in Kuadrant/helm-charts.
• The "source of truth" (source code and releasing logic) will be provided in each operator repo, not in the helm charts repository above.
• The helm charts repository is Kuadrant/helm-charts
• Documentation will be provided once the repository and other operator charts are tested.
• The steps to try out the repository will be provided in the kuadrant helm charts repo.
• For the release of the package, it will be tested once merged with alpha pre releases.

Verification Steps

0. Install helm locally

   make helm

1. Create a local kind cluster

   kind create cluster --name kuadrant-local

2. Install required dependency cert-manager

   kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.12.1/cert-manager.crds.yaml

# Add the Jetstack Helm repository
bin/helm repo add jetstack https://charts.jetstack.io --force-update

# Install the cert-manager helm chart
bin/helm install cert-manager --namespace cert-manager --version v1.12.1 jetstack/cert-manager --create-namespace

You should see it installed:

kubectl get deployments -n cert-manager
NAME                      READY   UP-TO-DATE   AVAILABLE   AGE
cert-manager              1/1     1            1           7m32s
cert-manager-cainjector   1/1     1            1           7m32s
cert-manager-webhook      1/1     1            1           7m32s

3. Deploy (install) the default (latest) Authorino Operator chart

   make helm-install

OR

bin/helm install authorino-operator charts/authorino-operator

4. Verify the installed operator image:

   kubectl get deployments/authorino-operator -n authorino-operator -o yaml | grep image:

   it should return:

   image: quay.io/kuadrant/authorino-operator:latest

It should also have installed Authorino manifests and webhooks i.e:

kubectl get crds | grep auth
authconfigs.authorino.kuadrant.io           2024-07-01T08:26:05Z
authorinos.operator.authorino.kuadrant.io   2024-07-01T08:26:05Z

kubectl get deployment -n authorino-operator

NAME                 READY   UP-TO-DATE   AVAILABLE   AGE
authorino-operator   1/1     1            1           2m6s
authorino-webhooks   1/1     1            1           2m6s

5. Build new manifests with specific version of the operator

   make helm-build VERSION=0.12.0-alpha1 AUTHORINO_VERSION=0.17.2

6. Upgrade the current installed operator to the freshly built one

   make helm-upgrade

7. Check the installed operator image:

   kubectl get deployments/authorino-operator -n authorino-operator -o yaml | grep image:

it should return:

image: quay.io/kuadrant/authorino-operator:v0.12.0-alpha1

8. For uninstalling the chart:

   make helm-uninstall

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 61.78%. Comparing base (9560c40) to head (66b80ee).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #184 +/- ## ======================================= Coverage 61.78% 61.78% ======================================= Files 2 2 Lines 785 785 ======================================= Hits 485 485 Misses 249 249 Partials 51 51 ``` | [Flag](https://app.codecov.io/gh/Kuadrant/authorino-operator/pull/184/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Kuadrant) | Coverage Δ | | |---|---|---| | [unit](https://app.codecov.io/gh/Kuadrant/authorino-operator/pull/184/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Kuadrant) | `61.78% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Kuadrant#carryforward-flags-in-the-pull-request-comment) to find out more.

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[guicassolato]

Verification steps seem to be applying 2 sets of deployments of cert-manager. One set in the cert-manager namespace and another in the default namespace. The deployments in the default namespace are prefixed by authorino-operator-. This seems redundant. Normally, we'd only have it deployed to the cert-manager.