GitLab - Run the same job on multiple images
Sometimes you want to test your code on different python versions. Using Travis CI it is very easy, but can we do that or something similar in GitLab? Let's see! The problem : there are some tests written in python and we want to test it on different python versions. We can easily use extends keyword, define some common logic in .test job and then inherit it in other jobs: But... for each new version we have to define a new job. Maybe, we can do better? GitLab has introduced a parallel keyword. Additionally, there is a matrix keyword; using this guy you can run a job multiple times in parallel in a single pipeline, but with different variable values for each instance of the job. But, you cannot change image keyword for example 😞. Maybe there is another way? Have you ever heard about dind (Docker-in-Docker)? If not, here is some info about it: Another way to configure GitLab Runner for docker support is to register a runner with the Docker executor and use the Docker im