Added default_home_dashboard_path

[Bobbins228]

Description

Added the option to change the default home dashboard path.

Relevant issues/tickets

Relates to #578

Type of change

• New feature (non-breaking change which adds functionality)

Checklist

• This change requires a documentation update
• I have added tests that prove my fix is effective or that my feature works
• I have added a test case that will be used to verify my changes
• Verified independently on a cluster by reviewer

Verification steps

[hubeadmin]

LGTM overall, just one small nitpick.

[hubeadmin]

Thanks @Bobbins228 👍

[ninkaninus]

@Bobbins228 How do I use this, as the operator provisions the dashboards through the API I am unable to locate them in the container, therefore unable to use this to set a path for the home dashboard as I don't know the path.

[Bobbins228]

@ninkaninus I am unsure to be honest. I don't remember how I tested these changes but perhaps someone in the grafana-operator channel on the Kubernetes Slack could help you?

[clementnero]

@ninkaninus I'm trying to do the same. Did you find a solution ?

[ninkaninus]

@clementnero We did not manage to do it, as we was waiting on some merges to bitnami's helm chart, we was only on version 3.8.X where the home dashboard provisioning was implemented after version 4.0.0.

Resources I found under the investigation.
bitnami/charts#8059
https://github.com/bitnami/bitnami-docker-grafana/issues/17
#578

I hope to update and test my configuration within 1 month.