The world after February 18th

As you probably discovered, the February 2020 security update had a significant impact on NAV/Business Central Docker Containers. Especially if you were running Process isolation. Most visible problem was the fact that you couldn’t launch 32bit executables in containers after applying the security update. My blog post from February 14th (https://freddysblog.com/2020/02/14/hyperv-isolation-to-the-rescue/) would explain two ways to mitigate the problem:

  1. Run hyperv isolation
  2. Uninstall February update

None of these are perfect solutions. If you are using non-unicode apps (like finsql and C/AL code) then hyperv isolation really doesn’t work very well. It causes destructive character set conversions and you really don’t want to not apply security updates for a longer period in time. Continue reading

Process Isolation for containers in Windows 10

For a few months we have known that Docker for Windows would get support for process isolation under Windows 10. Arend-Jan Kauffmann explained how to use nightly builds from Docker to get the feature early and test it. I of course jumped on this and have been running a nightly build of Docker since December 6th.

A few days ago the feature was released in the edge release of Docker Desktop. Continue reading