"Caching" of builds is not working

[madsnedergaard]

Seems like it's broken again for some reason..
Haven't dived too deep into it, but as far as I can tell, it finds images with same dependency-hash yet still builds all packages :(

See example from CI here: https://drone.tmrow.com/tmrowco/bloom/107/1/3

[madsnedergaard]

cc @skovhus (I know you're busy this week and I think we can manage for now, just thought you should know)

[skovhus]

Thanks @madsnedergaard. It seems like it didn't find any images tagged with master... Currently we do not cache based on branch images – although we could probably do this. 🤔

It might be related to our tagging with the sha on master images, that takes over the master tag.

[skovhus]

On a branch called ks/update-invalid-logs it failed to use the cache:

2020-10-28 12:58:33,218 [INFO] 🔨 Building northapp..
--
34 |  
35 | 2020-10-28 12:58:34,399 [DEBUG] Found 2 image(s) matching dependency hash sha256:ad3e331a72585bc9be9f2b7ca6a1975fee977f596fcbc813e680b550eb8942b0/69775997eba46e30341ab1fcfb206fa9140bb3a0 (['northapp:ks-update-invalid-logs', 'northapp_build:ks-update-invalid-logs']..)
36 | 2020-10-28 12:58:34,402 [DEBUG] docker build . --iidfile /tmp/tmpcf95z2a5 -f