vertical-pod-autoscaler-app release v4.0.0

Changed

WARNING: this version requires Cilium to run because of the dependency on the CiliumNetworkPolicy CRD

• Upgrade dependency chart to 9.2.0.
• Adjusted the resource and limits to accomodate larger clusters by default
• Adjusted the admission controller to give it more QPS against the API
• Adjusted the updater to give it more QPS against the API
• Adjusted the recommender to give it
  • more QPS against the API
  • doubling the memory in case of an OOMKilled event
  • Using the 95% percentile for the calculation of the CPU usage: should allow to scale up more precisely to account for spikes in CPU consumption of the workload
  • Adjusted the resource and limits to accomodate larger clusters by default
  • Calculating recommendations only for workloads which do have a VPA custom resource, instead of all workloads
  • Removed standard network policies to decrease maintenance burden
  • Fixed Cilium Network Policy to allow CRD jobs execution
  • Added Cilium Network Policy weight for an early execution
  • Disabled VPA for the updater pod otherwise it keeps on getting re-scheduled because the memory consumption varies a lot between reconsiling resources and idle
  • Disabled VPA for the recommender pod otherwise it keeps on getting re-scheduled because the memory consumption varies a lot between reconsiling resources and idle