Post-upgrade script does not reuse the existing values for helm releases

[SrishT]

Description

After upgrading the pravega operator from 0.4.5 to 0.5.1 via helm, the post-upgrade script which is used to upgrade the corresponding pravega release does not reuse the values of its parameters from the existing setup. Instead the defaults of all fields are reset to the defaults that are specified in the helm charts.

Importance

must have

Location

scripts/post-upgrade.sh

Suggestions for an improvement

The reuse-values option can be used instead of setting values for each parameter of the helm release.