alpine: force rebuild alpine for entrypoint fix
hooks: fix broken hooks
grep would not find anything because the image repository is prefixed by
index.docker.io, whereas local images are not.
alpine: fix broken install and add missing tags
debian: force initial build
hooks: docker hub picks up hook relative to the dockerfile
hooks: fix build hook.
This fixes the broken escaping and avoid duplicate work.
Also force-rebuild everything
hooks: pin meson version and build wider matrix of images
debian: use stretch instead of jessie
debian: add -y and let meson figure out its own dependencies
alpine: added alpine base image
debian: add base dockerfile