Change some code and automation

[sysnet4admin]

Hi leeliu,

I hope you have been well.
I would like to merge the code to some bug, update fio image and other automation purpose.
However it looks like orphan repo.

Anyhow I would like to improve your base code.
And feel free to let me know when you are available.

I am willing to merge and contribute your code.
Here is modified code all.
I apologize in advance if you feel uncomfortable.

https://github.com/sysnet4admin/kDbench

DEMO

Click to run

Interactive mode

$ kdbench 
# select one of them 
efs-sc 
gp2

# run automatically 
persistentvolumeclaim/kdbench-pv-claim created
job.batch/kdbench created
Waiting for kdbench's load....Working dir: /ON-efs-sc

Testing Read IOPS...
read_iops: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=64
fio-3.29-148-ge3de2
Starting 1 process
read_iops: Laying out IO file (1 file / 2048MiB)
<snipped>
All tests complete for [efs-sc]

=============================
= Kubernetes Dbench Summary =
=============================
Random Read/Write IOPS............................ [24.4k / 7330]
Bandwidth Read/Write.............................. [300MiB/s / 100MiB/s]
Average Latency Read(usec)/Write(usec)............ [2542.07 / 7907.11]
Sequential Read/Write............................. [301MiB/s / 102MiB/s]
Mixed Random Read/Write IOPS...................... [7121 / 2391]
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Waiting for job finished by ttlSecondsAfterFinished...

# delete automatically
kdbench finsihed and pvc will delete
persistentvolumeclaim "kdbench-pv-claim" deleted