[PATCH] gitlab-ci: Use docker images

[Daniel Vetter]

On Wed, Oct 31, 2018 at 07:35:13PM +0200, Arkadiusz Hiler wrote:
> On Wed, Oct 31, 2018 at 02:36:12PM +0100, Daniel Vetter wrote:
> > Shrinks the usual pipeline considerably, since we don't first waste a
> > few minutes installing stuff.
> > 
> > Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
> > 
> > ---
> >  .gitlab-ci.yml    | 25 ++++++++++++++++++++++---
> >  Dockerfile.fedora |  4 ++++
> >  2 files changed, 26 insertions(+), 3 deletions(-)
> >  create mode 100644 Dockerfile.fedora
> > 
> > diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
> > index 91cb6a20585d..ab68a168b3d8 100644
> > --- a/.gitlab-ci.yml
> > +++ b/.gitlab-ci.yml
> > @@ -1,7 +1,26 @@
> > -image: fedora:latest
> > +image: $CI_REGISTRY/$CI_PROJECT_PATH/dim-fedora:latest
> >  
> > -before_script:
> > -  - dnf install -y ShellCheck python3-docutils python3-sphinx make
> > +stages:
> > +  - containers
> > +  - build
> > +  - deploy
> > +
> > +container-build:
> > +    stage: containers
> > +    image: docker:stable
> > +    only:
> > +        changes:
> > +            - Dockerfile.fedora
> > +            - .gitlab-ci.yml
> 
> In which scenarios do you see value in rebuilding docker images when
> .gitlab-ci.yml changes?
> 
> I was considering something similar for IGT but gave up on the idea
> after not being able to came up with sensible, beneficial scenarios.

I think once the docker image flow is fairly stable it's not needed. But
for development and changes I've made use of it a few times now. So I
think it's useful to establish this as a copypasta template.
 
> Nevertheless,
> Reviewed-by: Arkadiusz Hiler <arkadiusz.hiler at intel.com>

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch