4e6f543676
Specify --pull in order to refresh the base image (some Fedora release). Usually this is not important, because we run `dnf update`. But if the cached image happens to be a pre-release version of Fedora, the image will have the update-testing repository enabled, and we may get some unwanted updates. It's sad that we need two separate flags for correctness (the other is --no-cache. Message-Id: <20200405164227.8210-1-avi@scylladb.com>