Development Guide¶

Technology stack required for development¶

operator-sdk version v1.28.1
kind version v0.22.0
git
go version 1.21+
kubernetes version v1.19+
kubectl version v1.19+

Build¶

make build

Deploy on local kubernetes cluster¶

Run local Kubernetes cluster using Docker container using Kind and deploy kuadrant operator (and all dependencies) in a single command.

make local-setup

The make local-setup target accepts the following variables:

Makefile Variable	Description	Default value
`GATEWAYAPI_PROVIDER`	GatewayAPI provider name. Accepted values: [istio]	istio

Run as a local process¶

Run local Kubernetes cluster using Docker container using Kind and deploy all dependencies in a single command.

make local-env-setup

The make local-env-setup target accepts the following variables:

Makefile Variable	Description	Default value
`GATEWAYAPI_PROVIDER`	GatewayAPI provider name. Accepted values: [istio]	istio

Then, run the operator locally

make run

Deploy on existing kubernetes cluster¶

Requirements:

Active session open to the kubernetes cluster.
GatewayAPI installed
GatewayAPI provider installed. Currently only Istio supported.
Cert Manager installed

Before running the kuadrant operator, some dependencies needs to be deployed.

make install
make deploy-dependencies

Then, deploy the operator

make deploy

Deploy kuadrant operator using OLM¶

You can deploy kuadrant using OLM just running few commands. No need to build any image. Kuadrant engineering team provides latest and release version tagged images. They are available in the Quay.io/Kuadrant image repository.

Create kind cluster

make kind-create-cluster

Deploy OLM system

make install-olm

Deploy kuadrant using OLM. The make deploy-catalog target accepts the following variables:

Makefile Variable	Description	Default value
`CATALOG_IMG`	Kuadrant operator catalog image URL	`quay.io/kuadrant/kuadrant-operator-catalog:latest`

make deploy-catalog [CATALOG_IMG=quay.io/kuadrant/kuadrant-operator-catalog:latest]

Build custom OLM catalog¶

If you want to deploy (using OLM) a custom kuadrant operator, you need to build your own catalog. Furthermore, if you want to deploy a custom limitador or authorino operator, you also need to build your own catalog. The kuadrant operator bundle includes the authorino or limtador operator dependency version, hence using other than latest version requires a custom kuadrant operator bundle and a custom catalog including the custom bundle.

Build kuadrant operator bundle image¶

The make bundle target accepts the following variables:

Makefile Variable	Description	Default value	Notes
`IMG`	Kuadrant operator image URL	`quay.io/kuadrant/kuadrant-operator:latest`	`TAG` var could be use to build this URL, defaults to latest if not provided
`VERSION`	Bundle version	`0.0.0`
`LIMITADOR_OPERATOR_BUNDLE_IMG`	Limitador operator bundle URL	`quay.io/kuadrant/limitador-operator-bundle:latest`	`LIMITADOR_OPERATOR_VERSION` var could be used to build this, defaults to latest if not provided
`AUTHORINO_OPERATOR_BUNDLE_IMG`	Authorino operator bundle URL	`quay.io/kuadrant/authorino-operator-bundle:latest`	`AUTHORINO_OPERATOR_VERSION` var could be used to build this, defaults to latest if not provided
`DNS_OPERATOR_BUNDLE_IMG`	DNS operator bundle URL	`quay.io/kuadrant/dns-operator-bundle:latest`	`DNS_OPERATOR_BUNDLE_IMG` var could be used to build this, defaults to latest if not provided
`RELATED_IMAGE_WASMSHIM`	WASM shim image URL	`oci://quay.io/kuadrant/wasm-shim:latest`	`WASM_SHIM_VERSION` var could be used to build this, defaults to latest if not provided

Build the bundle manifests

make bundle [IMG=quay.io/kuadrant/kuadrant-operator:latest] \
            [VERSION=0.0.0] \
            [LIMITADOR_OPERATOR_BUNDLE_IMG=quay.io/kuadrant/limitador-operator-bundle:latest] \
            [AUTHORINO_OPERATOR_BUNDLE_IMG=quay.io/kuadrant/authorino-operator-bundle:latest] \
            [DNS_OPERATOR_BUNDLE_IMG=quay.io/kuadrant/dns-operator-bundle:latest] \
            [RELATED_IMAGE_WASMSHIM=oci://quay.io/kuadrant/wasm-shim:latest]

Build the bundle image from the manifests

Makefile Variable	Description	Default value
`BUNDLE_IMG`	Kuadrant operator bundle image URL	`quay.io/kuadrant/kuadrant-operator-bundle:latest`

make bundle-build [BUNDLE_IMG=quay.io/kuadrant/kuadrant-operator-bundle:latest]

Push the bundle image to a registry

Makefile Variable	Description	Default value
`BUNDLE_IMG`	Kuadrant operator bundle image URL	`quay.io/kuadrant/kuadrant-operator-bundle:latest`

make bundle-push [BUNDLE_IMG=quay.io/kuadrant/kuadrant-operator-bundle:latest]

Frequently, you may need to build custom kuadrant bundle with the default (latest) Limitador and Authorino bundles. These are the example commands to build the manifests, build the bundle image and push to the registry.

In the example, a new kuadrant operator bundle version 0.8.0 will be created that references the kuadrant operator image quay.io/kuadrant/kuadrant-operator:v0.5.0 and latest Limitador and Authorino bundles.

# manifests
make bundle IMG=quay.io/kuadrant/kuadrant-operator:v0.5.0 VERSION=0.8.0

# bundle image
make bundle-build BUNDLE_IMG=quay.io/kuadrant/kuadrant-operator-bundle:my-bundle

# push bundle image
make bundle-push BUNDLE_IMG=quay.io/kuadrant/kuadrant-operator-bundle:my-bundle

Build custom catalog¶

The catalog's format will be File-based Catalog.

Make sure all the required bundles are pushed to the registry. It is required by the opm tool.

The make catalog target accepts the following variables:

Makefile Variable	Description	Default value
`BUNDLE_IMG`	Kuadrant operator bundle image URL	`quay.io/kuadrant/kuadrant-operator-bundle:latest`
`LIMITADOR_OPERATOR_BUNDLE_IMG`	Limitador operator bundle URL	`quay.io/kuadrant/limitador-operator-bundle:latest`
`AUTHORINO_OPERATOR_BUNDLE_IMG`	Authorino operator bundle URL	`quay.io/kuadrant/authorino-operator-bundle:latest`
`DNS_OPERATOR_BUNDLE_IMG`	DNS operator bundle URL	`quay.io/kuadrant/dns-operator-bundle:latest`

make catalog [BUNDLE_IMG=quay.io/kuadrant/kuadrant-operator-bundle:latest] \
            [LIMITADOR_OPERATOR_BUNDLE_IMG=quay.io/kuadrant/limitador-operator-bundle:latest] \
            [AUTHORINO_OPERATOR_BUNDLE_IMG=quay.io/kuadrant/authorino-operator-bundle:latest] \
            [DNS_OPERATOR_BUNDLE_IMG=quay.io/kuadrant/dns-operator-bundle:latest]

Build the catalog image from the manifests

Makefile Variable	Description	Default value
`CATALOG_IMG`	Kuadrant operator catalog image URL	`quay.io/kuadrant/kuadrant-operator-catalog:latest`

make catalog-build [CATALOG_IMG=quay.io/kuadrant/kuadrant-operator-catalog:latest]

Push the catalog image to a registry

make catalog-push [CATALOG_IMG=quay.io/kuadrant/kuadrant-operator-bundle:latest]

You can try out your custom catalog image following the steps of the Deploy kuadrant operator using OLM section.

Cleaning up¶

make local-cleanup

Run tests¶

Unittests¶

make test-unit

Optionally, add TEST_NAME makefile variable to run specific test

make test-unit TEST_NAME=TestLimitIndexEquals

or even subtest

make test-unit TEST_NAME=TestLimitIndexEquals/empty_indexes_are_equal

Integration tests¶

Multiple controller integration tests are defined

Golang package	Required environment	Makefile env setup target	Makefile test run target
`github.com/kuadrant/kuadrant-operator/tests/bare_k8s`	no gateway provider, no GatewayAPI CRDs. Just Kuadrant API and Kuadrant dependencies.	`make local-k8s-env-setup`	`make test-bare-k8s-integration`
`github.com/kuadrant/kuadrant-operator/tests/gatewayapi`	no gateway provider. GatewayAPI CRDs, Kuadrant API and Kuadrant dependencies.	`make local-gatewayapi-env-setup`	`make test-gatewayapi-env-integration`
`github.com/kuadrant/kuadrant-operator/controllers`	at least one gatewayapi provider. It can be any: istio, envoygateway, ...	`make local-env-setup GATEWAYAPI_PROVIDER=[istio]` (Default istio)	`make test-integration`
`github.com/kuadrant/kuadrant-operator/tests/istio`	GatewayAPI CRDs, Istio, Kuadrant API and Kuadrant dependencies.	`make local-env-setup GATEWAYAPI_PROVIDER=istio`	`make test-istio-env-integration`

Lint tests¶

make run-lint

(Un)Install Kuadrant CRDs¶

You need an active session open to a kubernetes cluster.

Remove CRDs

make uninstall