Support request for exceeding Docker Hub rate limit for Prometheus and NATS

[AlexanderB1290]

Support request for exceeding Docker Hub rate limit for Prometheus and NATS

[alexellis]

Hi,

Thanks for the interest in the Community Edition of OpenFaaS.

You mention rate limits for the Docker Hub, however we do not publish images to the Docker Hub. No OpenFaaS CE or Pro image should be rate-limited, since they're hosted on GHCR.io.

That said, Prometheus and NATS (referenced in the chart) are both hosted on the Docker Hub, as we do not control them.

If you enable an image pull secret for the service account like we suggest doing for functions, you should be able to use your own authentication for the Docker Hub to install Prometheus and NATS.

See the heading: Option 1 - Link an image pull secret to the namespace's ServiceAccount](https://docs.openfaas.com/reference/private-registries/#option-1-link-an-image-pull-secret-to-the-namespaces-serviceaccount)

You can patch the default service account with kubectl or with a YAML file applied after deployment with Helm.

Alternatively, perhaps you could mirror NATS and Prometheus yourself into your own local registry mirror, with or without authentication. If you go for this option, simply edit your values.yaml file and set "nats.image=local-mirror/...." etc

Add imagePullSecrets with the corresponding secrets used for authentication in the spec section.

We'll monitor feedback from other users to decide whether this is something we should do or not. The two alternatives I've suggested should resolve any problem you're running into satisfactorily.

Alex