- Using docker image FROM ruby:2.6.3-alpine3.10
- upgrade to alpine 3.10
- upgrade to ruby 2.6.3
- Using docker image FROM ruby:2.5.3-alpine3.8
- upgrade to alpine 3.8
- upgrade to ruby 2.5.3
- update to alpine 3.7
- add timezone dependencies
- alpine 3.6 at this time