Having started down the Docker road, I hit an interesting issue the other day. How do you get Sitecore to generate absolute links correctly when your site runs inside a container?
There's been a lot of movement towards "Docker for Sitecore" over the last year – to the extent that even I have finally jumped onto the bandwagon. And with any new tech, there are some rough edges to contend with. Right now (for me at least) one of those is being able to get the right Docker images built for the bit of work you need to do. In the future (crosses fingers) we'll see Sitecore offering a repo for these images – but for now it's up to us to build our own. So if you need something that's not v9.3, here's what I did to get there: