kotaplan

Kotaplan

Visualize resource consumption and generated ResourceQuota with recommend spec

Intallation

curl -ssf -L https://raw.githubusercontent.com/ca-gip/kotaplan/master/install.sh | bash

Adding completion for bash (also available for zsh and fish)

echo "source <(kotaplan completion bash)" >> ~/.bashrc

Windows

A Windows binary is also available checkout our latest release, you will find kotaplan_<version>_windows_amd64.tar.gz

Feature

What it accomplishes :

• List client namespace with :
  • Amount of pods
  • Total amount of request (CPU and Memory)
  • Current total amount of usage (CPU and Memory)
  • Does it fit the default claim
  • The recommended spec of the claim
• List cluster resources :
  • Amount of worker nodes
  • Total amount of allocatable resources (CPU and Memory)
  • Maximum amount of resource per namespace (CPU and Memory)
  • Total amount of allocatable resources with over-commit (CPU and Memory)
• Check that the recommended spec fit the maximum amount of resource per namespace
• Give a result which check that the total amount of resources fit the total allocatable of the cluster
• Generate YAML manifest for all the namespace with the recommended spec

How the recommended spec is calculated ?

For a namespace to be marked as "fit default", its request must be 20% lower that the default claim If a namespace does not a fit the default claim the recommendation will add a margin of 20%. This is the default setting, it can be change via the --margin flag

How to use

kotaplan help
Visualize resource consumption and generated ResourceQuota with recommend spec

Usage:
  kotaplan [command]

Available Commands:
  completion  generate the autocompletion script for the specified shell
  generate    Generate ResourceQuota manifest
  help        Help about any command
  view        Visualize resource consumption, policy compliance and recommended ResourceQuota

Flags:
      --config string                  config file (default is $HOME/.kotaplan.yaml)
      --default-claim-cpu int          Amount of CPU for the default claim in Milli. ex 1000 = 1CPU. (default 0)
      --default-claim-memory int       Amount of Memory for the default claim in GiB. (default 0)
  -h, --help                           help for kotaplan
      --kubeconfig string              Path to a kubeconfig (default "~/.kube/config")
  -l, --labels string                  Match namespace containing a label (default "quota=managed")
      --margin float                   Margin for the recommended spec (default 1.2)
      --master string                  Address of the Kubernetes API server. Overrides any value in kubeconfig
      --over-commit-cpu float          Ratio of the CPU over or under commit (default 1)
      --over-commit-memory float       Ratio of the Memory over or under commit (default 1)
      --ratio-namespace-cpu float      Ratio of the maximum amount of CPU that can be claim by a namespace. Ex: 0.5 meaning 50% of the cluster is claimable by a Namespace (default 1)
      --ratio-namespace-memory float   Ratio of the maximum amount of Memory that can be claim by a namespace. Ex: 0.5 meaning 50% of the cluster is claimable by a Namespace (default 1)

Use "kotaplan [command] --help" for more information about a command.

In case manifest should be generated

kotaplan generate

In case the default claim should be customized : Example a default claim with 6Gi of Memory and 1 CPU

kotaplan view --default-claim-memory 6 --default-claim-cpu 1000