+ [2020-04-03T20:06:35Z] drleviathan then before the build you would use envsubst to copy Dockerfile to the final.Dockerfile with those variables replaced with their actual values in the runner environment
+ [2020-04-03T20:07:05Z] drleviathan and then "build -f final.Dockerfile -t dockerhub_username/image_name:tag_name ./"
+ [2020-04-03T20:07:30Z] mazula thank you
+ [2020-04-03T22:11:17Z] mazula hi what is wrong? https://gist.github.com/minas-tirith/13c15449e3739db639ef876a65736c09

message no. 178859

Posted by drleviathan in #github at 2020-04-03T16:18:55Z

the linux runner is listed as "ubuntu-18.04" but it isn't a vanilla base ubuntu:18.04 docker image because it has various tools already installed such as docker itself
+ [2020-04-04T12:07:04Z] tarkus Q: Is there an easy very to compare two semver version numbers on "ubuntu-latest" GA machine?
+ [2020-04-04T12:09:25Z] nedbat tarkus: what is GA machine?
+ [2020-04-04T12:09:38Z] tarkus GitHub Actions
+ [2020-04-04T12:10:49Z] nedbat sorry, i don't know
+ [2020-04-04T15:08:37Z] mazula hi any idea why I have this error? https://gist.github.com/minas-tirith/835ea39609ce9377008923ebfe87ab1e