Non-interactive method for dpkg-reconfigure tzdata [closed]

Answer 1

Here's my Dockerfile for the latest Ubuntu 18.04 LTS distro, adapted from the answer by @NilsBallmann. I also removed temp file creation and compacted the package installation into a single layer:

FROM ubuntu:bionic

RUN export DEBIAN_FRONTEND=noninteractive; \
    export DEBCONF_NONINTERACTIVE_SEEN=true; \
    echo 'tzdata tzdata/Areas select Etc' | debconf-set-selections; \
    echo 'tzdata tzdata/Zones/Etc select UTC' | debconf-set-selections; \
    apt-get update -qqy \
 && apt-get install -qqy --no-install-recommends \
        tzdata \
 && apt-get clean \
 && rm -rf /var/lib/apt/lists/*