How to handle upgrade of Data on Kubernetes

What is the recommended approach for handling upgrades in an InterSystems IRIS Kubernetes environment?

For example, if we deploy version 1.0.0 of our product and subsequently need to upgrade to 1.0.1, and this upgrade requires changes to SQL tables containing customer data.

The quickest solution that comes to mind is creating an 'upgrade method' that runs on startup to check if any data migration actions are required. However, I'm wondering if there are better solutions or established best practices for this.

Thanks in advance!"