sources:
  nginx-1.11.5.tar.gz: 3658724f3c6d049cd1d24f02f1acb7f9be250886
  nginx-1.11.5.tar.gz.asc: 647c4ef03c224ee0397db1434f5feb1eb8c93b6f
  nginx-logo.png: a609ff4e27b6236233ea576739a6fb040da4d550
  nginx-rtmp-module-1.1.10.tar.gz: cf068c5a15c55daeb606a334829705254f318bf5