gp2togp3

This is a python script to gather volume information from a Kubernetes cluster running in AWS. The information can then be used to migrate volumes types from gp2 to gp3 if you want.

Running

Running the script is pretty easy. You need to have your Kubernetes Context set and have the approporiate IAM access in AWS.

python ./gp2togp3.py

The script assumes AWS Region us-east-1 by default. The above command will return a table of every volume bound in a Kubernetes cluster like so.

PVC Name                    Volume ID              Namespace        PV Name                                   Storage Class    Volume Type
--------------------------  ---------------------  ---------------  ----------------------------------------  ---------------  -------------
data-an-0                   vol-0d78b72f9964506a6  aaaaaaaaaa       pvc-219ec545-27b1-4dee-a3e5-852d132139d0  ebs              gp3
data-an-1                   vol-04c44db2199947fc9  aaaaaaaaaa       pvc-2c5228c3-9cee-47a9-92c9-1f638451193f  ebs              gp3
data-an-2                   vol-06c51abfc6eb367f0  aaaaaaaaaa       pvc-e202bf71-8fd8-4447-8343-55990863ad30  ebs              gp3
data-an-0                   vol-0f158c6555f293fb0  bbbbbbbbbb       pvc-c658ef23-3029-4895-8a16-290164e38348  ssd              gp2
data-an-1                   vol-0570024bea201d8a8  bbbbbbbbbb       pvc-2738e59b-35ae-40e7-b7fe-b3a02266d8e7  ssd              gp2
data-an-2                   vol-08bac1d23bbdb6491  bbbbbbbbbb       pvc-29b1fdc6-15d4-4107-b9e5-2b42709f03af  ssd              gp2

Flags

flag	default	usage
--region	us-east-1	AWS Region
--storage-class	All	Filter by a specific Kubernetes storage class
--volume-type	All	Filter by a specific AWS Volume Type (gp2/gp3/io1/io2)
--namespace	All	Filter by a Kubernetes namespace
--migrate	False	Generate a list of gp2 volumes by volume-type and storage-class to be migrated from gp2 to gp3. If set --volume-type & --storage-class will be required