With the currently available version (ngslang/ngs:v0.2.12) I get this issue because of the outdated base image when trying to update:
+docker *failed* | E: The repository 'http://deb.debian.org/debian stretch Release' does no longer have a Release file.
+docker *failed* | E: The repository 'http://deb.debian.org/debian stretch-updates Release' does no longer have a Release file.
With the currently available version (
ngslang/ngs:v0.2.12
) I get this issue because of the outdated base image when trying to update: