search

projectsyn / boatswain

Boatswain is a tool for doing EKS node maintenance/upgrades by replacing nodes which were created from outdated launch templates.
BSD 3-Clause "New" or "Revised" License
1 stars 1 forks source link

Filter autoscaling groups by cluster name #90

Closed Schnitzel closed 2 years ago

Schnitzel commented 3 years ago

Context

Currently when you run boatswain check-ami on an AWS account it checks ALL the autoscaling groups in that AWS account if they are the most up to date ami. This causes all kind of issues:

  1. it checks autoscaling groups that are not even used by EKS
  2. if you have an AWS cluster with two clusters with different versions, like 1.20 and 1.19 every check-ami run will complain that the autoscaling groups of the other cluster are wrong.

there is a way to filter ASGs: kubernetes.io/cluster/[clustername] So we could make sure to only check the ASGs actually used by the current cluster

Alternatives

Noting really, creating a new AWS Account for each EKS cluster, but that's quite a hard workaround

simu commented 2 years ago

Closing this since we're not maintaining boatswain any longer