timezone not defineable via environment variable TZ

[volker-raschek]

Describe the bug

I've running athens v0.14.1 on my kubernetes cluster. I tried to configure the time zone via the environment variable TZ=Europe/Berlin, but the timestamp of the log messages are still on UTC, even if i set a symlink from /usr/share/zoneinfo/Europe/Berlin to /etc/localtime.

By default is the tzdata package of the alpine based athens image not installed. This explains why TZ and the symlink does not work and make it impossible to set the timezone correctly. Please install the tzdata package as documented in the alpine wiki into the container image: https://wiki.alpinelinux.org/wiki/Setting_the_timezone