travis: use Fedora 27 as a base image

It was confirmed experimentally that Fedora 27 is more suitable
for running cov-build than Fedora 28:
https://github.com/systemd/systemd/issues/9186#issuecomment-394577877.
This commit is contained in:
Evegeny Vereshchagin 2018-06-04 06:40:43 +00:00 committed by Evgeny Vereshchagin
parent 707fe958b7
commit d5a650d2c3
1 changed files with 1 additions and 2 deletions

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@ -1,8 +1,7 @@
## Create Dockerfile that builds container suitable for systemd build
## This container runs as non-root user by deafult
# Use the latest stable version of fedora
FROM fedora:latest
FROM fedora:27
# Demand the specification of non-root username
ARG DOCKER_USER