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dockerinstallationinteractivedocker-build

How does one install modules/stuff in docker if it requires interactive install?

I have been facing this problem for a long time now. Whenever I try to install anything on docker during build, that requires interactive install, the build "hangs" at the interaction screen. For example, for a particular project, I needed to install sddm in docker (Yeah, yeah I know I am stupid). Now, the build simply hangs at the step wherein I am supposed to select my keyboard layout. How do I go about such problems?

PS: Not all installation scripts are shell scripts that can be modified (like apt install sddm -y).
PS: spawn and echo is not always helpful.

Solution

  • Well, the answer was pretty easy actually. The ENV variable was to be set properly

    ENV DEBIAN_FRONTEND=noninteractive