How to build/run one Dockerfile per build job in Travis-CI? - github

Question

I've got a repository with multiple Dockerfiles which take ~20min each to build: https://github.com/fredrikaverpil/pyside2-wheels
I'd like to efficiently divide these Dockerfiles to be built in its own jobs.
Right now, this is my .travis.yml:
language: python
sudo: required
dist: trusty
python:
- 2.7
- 3.5
services:
- docker
install:
- docker build -f Dockerfile-Ubuntu16.04-py${TRAVIS_PYTHON_VERSION} -t fredrikaverpil/pyside2-ubuntu16.04-py${TRAVIS_PYTHON_VERSION} .
- docker run --rm -v $(pwd):/pyside-setup/dist fredrikaverpil/pyside2-ubuntu16.04-py${TRAVIS_PYTHON_VERSION}
script:
- ls -al *.whl /
This creates two jobs, one per Python version. However, I'd rather have one job per Dockerfile, as I'm about to add more such files.
How can this be achieved?

Answer 1

Managed to solve it, I think.
language: python
sudo: required
dist: trusty
services:
- docker
matrix:
include:
- env: DOCKER_OS=ubuntu16.04
python: 2.7
- env: DOCKER_OS=ubuntu16.04
python: 3.5
- env: DOCKER_OS=centos7
python: 2.7
install:
- docker build -f Dockerfile-$DOCKER_OS-py${TRAVIS_PYTHON_VERSION} -t fredrikaverpil/pyside2-$DOCKER_OS-py${TRAVIS_PYTHON_VERSION} .
- docker run --rm -v $(pwd):/pyside-setup/dist fredrikaverpil/pyside2-$DOCKER_OS-py${TRAVIS_PYTHON_VERSION}
script:
- ls -al *.whl /
This results in three job builds.