Denis Rouzaud 2829f6ba35
[docker] fix cache and enable timeouts for Docker images (on cron jobs) (#32264)
This allows faster builds of the Docker images on cron jobs by fixing the caching on Travis (it has a distinct cache than the standard testing builds)
To get the cache, it has to be stored on some point in a docker image. To avoid image size increase, a second build is done with removing the cache and build information and using squash builds (currently an experimental feature of Docker).
2019-10-17 09:50:05 +02:00
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2019-08-16 16:55:36 +02:00