Most plugins carry all the code they need and have a simple install. Those two you tried to use need to fetch gems (libraries) from the internet to able to function.
do you know where in the code those ruby gem fetches for plugins happen? I tried looking for it but havenāt found the right place yet.
Iām thinking maybe instead of using cached gems maybe it would be more elegant to run a rubygems mirror on the isolated host, i found a tutorial here and it looks like you can configure extra system-wide gem sources
Our internal Discourse has happily been running the same old version for a good long while now, but we are finally getting rid of IE9 so itās way overdue for an upgrade.
I can report that this guide is still good with the latest versions of Discourse. Even with RHEL8 instead of 7 
While experimenting I figured out a way to get those discourse-prometheus and discourse-calendar plugins working offline too even with the extra dependencies, the trick was to fish out the ruby gems from the plugin directory of the build server as well as the ones in /var/www/discourse/vendor/bundle/ruby
docker run -it -v ~/local/rubygems.org:/local-rubygems local_discourse/app /bin/bash -c "cp -rv /var/www/discourse/vendor/bundle/ruby /local-rubygems"
docker run -it -v ~/local/rubygems.org/plugin-gems/discourse-calendar:/local-rubygems local_discourse/app /bin/bash -c "cp -rv /var/www/discourse/plugins/discourse-calendar/gems /local-rubygems"
docker run -it -v ~/local/rubygems.org/plugin-gems/discourse-prometheus:/local-rubygems local_discourse/app /bin/bash -c "cp -rv /var/www/discourse/plugins/discourse-prometheus/gems /local-rubygems"
and then in /templates/web.template.yml :
- exec:
cd: $home
hook: bundle_exec
cmd:
# copy local ruby cache
- cp -rv /local-rubygems.org/ruby/* $home/vendor/bundle/ruby/
- cp -rv /local-rubygems.org/plugin-gems/* $home/plugins/
- su discourse -c 'bundle install --local --deployment --retry 3 --jobs 4 --verbose --without test development'
By the way it looks like the topic for Active Directory IIS SSO got lost at some point, but the code is still available at GitHub - laktak/discourse-sso: Single Sign On for Discourse with Active Directory and still works with the now renamed DiscourseConnect SSO
Tentei outra atualização e parece que em algum momento uma nova seção āyarn installā foi adicionada ao web.template.yml, o que quebra dentro do ambiente isolado.
- exec:
cd: $home
cmd:
- "[ ! -d 'node_modules' ] || su discourse -c 'yarn install --production && yarn cache list'"
Ao comparar os conteĆŗdos do contĆŖiner antigo e do novo, parece que hĆ” um monte de pacotes yarn em cache em /usr/local/share/.cache/yarn/v6 no novo, mas nada no antigo. Imagino que todos os node.js necessĆ”rios costumavam ser incluĆdos na imagem base, mas agora eles sĆ£o atualizados durante uma reconstrução?
Vou experimentar copiar o cache do yarn da mesma forma que o cache do ruby e ver se consigo fazer o yarn usar os pacotes em cache da caixa de compilação.