Finish staging deployment

[alexgarel]

We have https://search.openfoodfacts.net/ but it's not yet live updated.

• setup openfoodfacts.net search to use redis url
• re-initialize the database

[alexgarel]

I'm currently working on this @simonj2

[alexgarel]

It was harder than I though:

• I first did not set REDIS_URL, on product opener side, correctly and it was not logging correctly (so took some time to find out)
• there was a problem with the common network (webnet)
• OPENFOODFACTS_API_URL was lacking on staging deployment

But now it's done :tada:

I already merged #29 because it's already deployed (and want to avoid an unintended deployment with old version). Still you can comment @simonj2

[simonj222]

Thank you @alexgarel !!