🔌 Enable VPC CNI Bandwidth Plugin

[jacobwoffenden]

User Story

As an engineer
I want to enable VPC CNI's bandwidth plugin
So that I can artificially throttle pods egress and ingress

Value / Purpose

Since migrating from DX to S2S VPN, HMCTS DAGs are saturating the new link that is much bigger than the 200Mbps

Useful Contacts

@jacobwoffenden @julialawrence

User Types

No response

Hypothesis

If we... [do a thing]
Then... [this will happen]

Proposal

Set this on VPC CNI addon

      configuration_values = jsonencode({
        env = {
          ENABLE_BANDWIDTH_PLUGIN = "true"
        }
      })

Additional Information

https://aws.amazon.com/blogs/containers/ensuring-fair-bandwidth-allocation-for-amazon-eks-workloads/

Definition of Done

• Plugin enabled
• Changes visible in Bottlerocket host (/etc/cni/net.d/10-aws.conflist) access via sheltie

[jacobwoffenden]

Awaiting customer to test workload with https://github.com/moj-analytical-services/airflow/pull/5349

[jacobwoffenden]

Its working 🎉