2022-09-23 11:20:44 +0000 [info]: gem 'fluent-plugin-systemd' version '1.0.5'
<internal:/usr/local/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- systemd/journal (LoadError)
from <internal:/usr/local/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from /usr/local/bundle/gems/fluent-plugin-systemd-1.0.5/lib/fluent/plugin/in_systemd.rb:17:in `<top (required)>'
from <internal:/usr/local/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from <internal:/usr/local/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/registry.rb:103:in `block in search'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/registry.rb:100:in `each'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/registry.rb:100:in `search'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/registry.rb:44:in `lookup'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/plugin.rb:169:in `new_impl'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/plugin.rb:110:in `new_input'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/root_agent.rb:315:in `add_source'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/root_agent.rb:161:in `block in configure'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/root_agent.rb:155:in `each'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/root_agent.rb:155:in `configure'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/engine.rb:105:in `configure'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/engine.rb:80:in `run_configure'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/supervisor.rb:712:in `run_supervisor'
from /usr/local/bundle/gems/fluentd-1.15.2/lib/fluent/command/fluentd.rb:361:in `<top (required)>'
from <internal:/usr/local/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from <internal:/usr/local/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from /usr/local/bundle/gems/fluentd-1.15.2/bin/fluentd:15:in `<top (required)>'
from /usr/local/bundle/bin/fluentd:25:in `load'
from /usr/local/bundle/bin/fluentd:25:in `<main>'
Built on top of fluent/fluentd:v1.15-debian-1, with a quite close version of this dockerfile: