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brefphp / bref

Serverless PHP on AWS Lambda
https://bref.sh
MIT License
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Inconsistency between lambda layers on different regions? #725

Closed deleugpn closed 4 years ago

deleugpn commented 4 years ago

I was getting an error today when trying to deploy layer arn:aws:lambda:${AWS::Region}:209497400698:layer:php-73:26 across EU, US & Australia and Australia was failing because there's no layer 26. I was wondering what could be the reason for a specific layer not being available on a specific region. Is the layer 26 missing from Australia or the version 25 is the same as 26 in Europe?

mnapoli commented 4 years ago

You can have a look at https://runtimes.bref.sh/ and play with the regions, the numbers are not synchronized. Some regions were added later, and we have no control over the version numbers (they are autoincremented).

Once, I tried to deploy over an unreliable network and managed to deploy most regions, but the process stopped. I had to retry, but that's why some regions have more releases than others. It sucks, but that's also why I pushed a lot for using the serverless variables instead of the numbers themselves, because they are prone to errors.

deleugpn commented 4 years ago

Got it, thanks! For now I'm falling back to 25 and if it ever becomes a huge issue, I'll have to create an SSM Parameter in each region representing their own layer number

mnapoli commented 4 years ago

If it can help, we could add a command like this in Bref: https://github.com/brefphp/bref/pull/664#issuecomment-653584654