Based on the Dockerfile from publysher.
While I use this primarily with the CI functionality of GitLab to automatically rebuild and publish to Amazon S3 my Hugo site following every push, it can just as easily be used to host a Hugo site.
2018-03-07: Hugo 0.37
2018-02-05: Hugo 0.36
2018-01-29: Hugo 0.34
2018-01-16: Hugo 0.33
2018-01-08: Hugo 0.32.3
2018-01-02: Hugo 0.32.1
2017-12-31: Hugo 0.32
2017-11-28: Hugo 0.31.1
2017-11-20: Hugo 0.31
2017-10-19: Hugo 0.30.2 - Skipped 0.30.1
2017-10-15: Hugo 0.30
2017-09-26: Hugo 0.29
2017-09-25: Hugo 0.28
2017-09-13: Hugo 0.27.1
2017-09-11: Hugo 0.27
2017-09-04: Hugo 0.26