=========== apt-sources =========== This element overrides the default sources.list. For APT based systems, if your network connection is slow for the default sources.list in the upstream cloud image, you can define `DIB_APT_SOURCES` with your favorite sources.list to override it, before running devtest.sh. The new sources.list will take effect at build time and run time. If you want to use this element with tripleo-incubator scripts, set `NODE_DIST` / `SEED_DIB_EXTRA_ARGS` / `UNDERCLOUD_DIB_EXTRA_ARGS` / `OVERCLOUD_CONTROL_DIB_EXTRA_ARGS` / `OVERCLOUD_COMPUTE_DIB_EXTRA_ARGS` to make it take effect at the appropriate time. For instance, before running devtest.sh: export `DIB_APT_SOURCES`=/etc/apt/sources.list export `NODE_DIST`="ubuntu apt-sources"