Pull the last/latest(?) docker image to utilize its cache

[cjyetman]

If I interpret this correctly, it's attempting to pull the docker image that it's just about to create, so it will probably not ever succeed(?). Should it instead try to pull the most recent build/version, so that it can benefit from the cached layers?

https://github.com/2DegreesInvesting/PACTA_analysis/blob/3f7bf7b7bf91d477d5a0d723af798825a9290e93/azure-pipelines.yml#L95

[AlexAxthelm]

thanks for making the ticket. it's something I was already working on.

I think the best strategy is to try to pull branch, but if that doesn't work, then pull master

[AlexAxthelm]

now I just need to figure out a good way to check if branch exists 😢