Add-ons and storage
Module infographic
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Revision poster: managed add-ons and AWS storage.

Infographic: the managed add-on list, PRESERVE versus OVERWRITE, and EBS versus EFS storage properties
Click the poster to enlarge it

Left: the add-ons and the update choice. Right: EBS and EFS with the properties that decide which to use.

  1. 1Core components are managed add-ons with tested versions and health checks.
  2. 2Update with PRESERVE to keep your customisation; OVERWRITE resets to AWS defaults.
  3. 3EBS gp3 is zonal and ReadWriteOnce; provision with WaitForFirstConsumer.
  4. 4EFS is shared across zones with ReadWriteMany.
  5. 5Snapshots protect volumes but not application consistency.

Self-check: cover the poster and answer

  • What breaks if you update the VPC CNI add-on with OVERWRITE after enabling prefix delegation?
  • Which storage lets Pods in different zones mount the same files?

Update add-ons with PRESERVE and plan storage around zones.

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