Validate Multi-Namespace support

[nitishkumar71]

Signed-off-by: Nitishkumar Singh [email protected]

Closes #63

Testing Steps

1. Create Kind Cluster
   kind create cluster --name fass-pv-test
2. install openfaas using arkade
   arkade install openfaas --basic-auth=false --clusterrole
3. Port Forward gateway to 8080
   kubectl port-forward -n openfaas svc/gateway 8080:8080 &
4. Annotate kubernetes namespace

kubectl create namespace staging-fn
kubectl annotate namespace/staging-fn openfaas="1"
kubectl create namespace dev
kubectl annotate namespace/dev openfaas="1"

5. Export CERTIFIER_NAMESPACES
   export CERTIFIER_NAMESPACES=staging-fn,dev
6. Test K8 provider
   make test-kubernetes

[nitishkumar71]

@LucasRoesler Please review it.

[LucasRoesler]

@nitishkumar71 there are a few small language changes that I think make the errors a little more consistent with the other tests or improve the readability slightly.

There is also one slightly larger request to allow the default namespace to be configurable as well.

But it otherwise looks great 👍

[LucasRoesler]

I think we should move this to an ENV config as well: CERTIFIER_DEFAULT_NAMESPACE we can set this to openfaas-fn if it is empty This will allow us to run it against non-standard installations as well, so that we have

expectedNamespaces := append(config.Namespaces, config.DefaultNamespace)

[derek]

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[nitishkumar71]

@LucasRoesler Thank you for the review. I have made all the required changes.

[LucasRoesler]

Looks and works great 🚀