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Alejandro Gullón
baa812b7f0
* Added new scenario to fill up a given volumen * fixing small issues and style * adding PVC as input param instead of pod name * small fix * get container name and volumen name replace oc with kubectl commands * adding yaml file to create a pv, pvc and pod to run pvc_scenario * adding support to match both string for describe command when looking for pod_name * added support to find the pvc from a given pod * small fix * small fix
1.3 KiB
1.3 KiB
PVC scenario
Scenario to fill up a given PersistenVolumeClaim by creating a temp file on the PVC from a pod associated with it. The purpose of this scenario is to fill up a volume to understand faults cause by the application using this volume.
Sample scenario config
pvc_scenario:
pvc_name: <pvc_name> # Name of the target PVC
pod_name: <pod_name> # Name of the pod where the PVC is mounted, it will be ignored if the pvc_name is defined
namespace: <namespace_name> # Namespace where the PVC is
fill_percentage: 50 # Target percentage to fill up the cluster, value must be higher than current percentage, valid values are between 0 and 99
duration: 60 # Duration in seconds for the fault
Steps
- Get the pod name where the PVC is mounted
- Get the volume name mounted in the container pod
- Get the container name where the PVC is mounted
- Get the mount path where the PVC is mounted in the pod
- Get the PVC capacity and current used capacity
- Calculate file size to fill the PVC to the target fill_percentage
- Connect to the pod
- Create a temp file
kraken.tmpwith random data on the mount path:dd bs=1024 count=$file_size </dev/urandom > /mount_path/kraken.tmp
- Wait for the duration time
- Remove the temp file created:
rm kraken.tmp