Adding fullnameOverwrite and annotations for customising Genesis startup hooks

[RudyBricks]

Hello,

First of all, thank you very much for providing these Kubernetes configurations and Helm charts. They are extremely valuable to us.

I’d like to propose some changes to address three issues that would otherwise prevent deployment when using subcharts:

1. The Genesis script may execute after the validator node startup hooks complete, which can cause issues if the besu-peers file doesn't already exist. To resolve this, I’ve made it possible for users to pass custom annotations to the Job/ServiceAccount, allowing better control over the execution order.

2. The Genesis script generates node names that don’t always match the actual node names generated by the besu-node chart. To address this, I added a fullnameOverwrite parameter to allow control over the naming convention.

3. I included additional match labels for the blockscout service. Previously, the service didn’t match any pods when deployed via subcharts. With these changes, it should now work reliably in both subchart and non-subchart deployments.

Additionally, I added an example demonstrating a Helm-based deployment using Minikube.

Please let me know what you think.

[CLAassistant]

All committers have signed the CLA.

[joshuafernandes]

Hello @RudyBricks

Thankyou for this submission. Looks good and makes sense.

One request though, could you add the same to the goquorum side of things as well please so we keep them consistent?

Happy to merge once thats in :)

Cheers

[joshuafernandes]

Changes look good @RudyBricks . To keep things consistent between the two could you add these to the goquorum side of things as well please?