--> https://github.com/bigbluebutton/greenlight/commit/1a625c70ade7a6bb4b7c73067fd3a1e6c6a281d9#r48758847

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 mantridereso yesterday

I think it's necessary to add 'shared-mime-info' package at this position as well:

`
############### Build step done ###############

FROM ruby:2.7.2-alpine
Set a variable for the install location.

ARG RAILS_ROOT=/usr/src/app
ARG PACKAGES="tzdata curl postgresql-client sqlite-libs yarn nodejs bash shared-mime-info"

ENV RAILS_ENV=production
ENV BUNDLE_APP_CONFIG="$RAILS_ROOT/.bundle"
`
Otherwise presentation preupload fails, as /usr/share/mime/packages/freedesktop.org.xml isn't available in container.
@jfederico
jfederico yesterday Author Member

Yeah, that is right. The gem is passed but the dependency is still required