Docker build in pipelines doesn't cache build process?

Is there a way to cache build process for docker build?

Now, everytime the build is started, it downloads the parent image again and build goes through every Dockerfile command all over again, so the build in whole stretches up to 6 minutes.

 

Docker engine is capable of caching images and build commands that weren't changed.

I couldn't find any documentation on docker cashing ( found the ones for npm for example ). Is there a support for this but it's not documented ?  Or, if not, is this somewhere in the Pipelines roadmap?

 

THanks a lot!

 

1 answer

0 votes

Hey @Matija Svoren,

Not at this time; follow https://bitbucket.org/site/master/issues/14144/cache-docker-layers-between-builds to get updates as we implement this feature.

 

-Seb

This feature has been shipped for customers to use here is the details on how to opt-in to this docker layer cache.

pipelines:
  default:
    services:
      - docker
    caches:
      - docker
    script:
      - # .. do cool stuff with Docker .. 

reference

Hi @Trevor Mack,

Probably this feature does not correctly work, for example in my pipeline it caches only 2 layers:

Status: Downloaded newer image for ruby:2.5.0

---> 213a086149f6

Step 2/18 : ARG DATABASE_URL

---> Using cache

---> 429c813b6abf

Step 3/18 : ENV RACK_ENV production

---> Using cache

---> c0e98fc7cea0

Step 4/18 : ENV RAILS_ENV production

---> Running in 62f18ad58da3

Removing intermediate container 62f18ad58da3

---> a7f6146135a4

Step 5/18 : ENV DATABASE_URL $DATABASE_URL

---> Running in d0f15c5589fc

Removing intermediate container d0f15c5589fc 

 

Bump! 

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