devops: allow downloading zebrad and lightwalletd states

[conradoplg]

Describe the issue or request

In CI we have cached disks which contain the zebrad state for both mainnet and testnet, and similarly for lightwalletd.

When developing, it would be useful to be able to download those states - the developer might not have a synced node and it would take hours/days to sync one.

I'm not sure what the best mechanism would be, but the goal is allowing a developer to download the state (i.e. the .cache/zebra/state folder) from somewhere.

Since it would be big (~300 GB), we will probably require access control.

Expected Behavior

No response

Current Behavior

No response

Possible Solution

No response

Additional Information/Context

No response

Is this happening on PRs?

No response

Is this happening on the main branch?

No response

[mpguerra]

I wonder if we could just write some internal documentation on how to download this from our GCP instances, i.e for those with access to google cloud console already

[conradoplg]

I wonder if we could just write some internal documentation on how to download this from our GCP instances, i.e for those with access to google cloud console already

That could work, though I tried that I didn't manage to make it work (I think I don't have permissions)

[mpguerra]

I guess the question is:

1. Is it possible to download existing states from zebra instances running on GCP?
2. If so, what are the instructions to do so? Where are they and what are steps to download locally

@gustavovalverde is this something that you can help out with?