Ability to specify Dockerfile (--file)

[gvangool]

Is it possible to add the ability to specify Dockerfile (the --file option on the cli)?

Currently I build with a Makefile, but since we're moving to production we want to switch to automated builds:

build-httpd:
        docker build -t gvangool/repo:httpd -f _build/Dockerfile_httpd .

build-fax:
        docker build -t gvangool/repo:fax -f _build/Dockerfile_fax .

[ChristopherBiscardi]

To be clear, you are asking for the ability to separately specify the build context and the dockerfile in Automated Builds?

[gvangool]

Yes indeed. In my case the context would be /, while the dockerfile is _build/Dockerfile_httpd. At this moment you can only specify the context.

[ChristopherBiscardi]

It is not possible to do this in Automated Builds today. Marking as feature request.

[stooie90]

+1 for this. I use that style for separating out my dev and production environments.

[jakirkham]

+1 also would really like to see the option to specify build context and Dockerfile separately. This is incredibly useful if several docker images rely on many of the same components and hence are in the same repo, but at a higher directory level than the Dockerfiles.

[geoah]

+1 Currently have a repo that produces multiple containers. Would be very useful to allow container repos to specify dockerfiles and not just their context paths.

[isntall]

+1 I have pretty much the same use case.

[akoi]

+1 Would be great to be able to keep the dockerfiles out of the project/repo root.

[glinton]

+1

[galenp]

+1