By Robin Tang
Hey folks,
I have a DOKS cluster set up with multiple node pools and I am trying to figure out the best way to empower my customers to enable IP allowlist for my DOKS cluster.
Context: I have a bunch of workers running within my DOKS cluster that will try to access customer’s databases hosted on AWS, GCP, DigitalOcean, etc…
I would like to give them a set of IPs or CIDR ranges that they can turn on to enable me to access their network.
My current challenges: I have been sent to set up an Egress Gateway via Crossplane with DigitalOcean CRD (https://github.com/digitalocean/container-blueprints/tree/main/DOKS-Egress-Gateway).
This works fine, but I have a couple questions: (1) Does the StaticRoute CRD support multiple gateways with overlapping destinations ranges? (https://github.com/digitalocean/k8s-staticroute-operator) I have submitted an issue to the GitHub repo as well.
(2) Instead of specifying “destinations”, is there a way to specify exclude this destination range? That way, I can exclude DigitalOcean REST APIs and K8 private IPs. It will also save me from having to input 10k+ CIDR blocks (AWS has 7.5k IPv4 CIDR ranges).
I would love to hear if anyone has a better way to achieve my use case and/or have answers for above.
Thanks in advance, Robin.
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Hey!
I would say that it is probably better to use the Kubernetes Egress Gateway using Crossplane and Static Routes Operator.
DigitalOcean recently published a how to tutorial on how to do that which is a good indication that this will be the better supported way of doing it:
- Bobby
Hi there,
Quick update here, DigitalOcean have just released a managed component for maintaining host routes in DOKS:
https://www.digitalocean.com/blog/introducing-doks-routing-agent
The new DOKS routing agent is a managed component for configuring static routes on Kubernetes worker nodes. It is a direct response to user feedback on its predecessor, the static route operator, and introduces new features to enhance routing flexibility. Despite being a managed component, the DOKS routing agent is included at no additional cost for users.
- Bobby
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