k8s-rsc-req-changer

README

k8s-rsc-req-changer

Batch modification of cpu or memory requests in a cluster

Usage

k8s_rsc_req_changer container-name-prefix (cpu|memory) quantity

• If the quantity is 0, then the request is removed if present
• Otherwise, the request is modified (if already present and has diffea rent value) or added (if not present)
• Ensure KUBECONFIG is set and points to the desired cluster. Otherwise, the -kubeconfig <path> option must be supplied.

Warnings

• Use with caution: all containers across all namespaces with a matching name prefix are modified
• Actually modifies deployment resources controlling the containers. Containers in pods managed by other controllers are not touched.

Examples

k8s_rsc_req_changer foo- cpu 50m # changes (or adds) the cpu request of all containers named foo-xxx to 50m
k8s_rsc_req_changer foo- memory 0 # removes the memory request of all containers named foo-xxx if present

Building the program

Just: go build