DEV: configure logster max logs via ENV (#7225)

DEV: configure logster max logs via ENV (#7225)

diff --git a/config/initializers/100-logster.rb b/config/initializers/100-logster.rb
index a34c4ad..eeed500 100644
--- a/config/initializers/100-logster.rb
+++ b/config/initializers/100-logster.rb
@@ -72,6 +72,10 @@ if Rails.env.production?
   Logster.config.env_expandable_keys.push(:hostname, :problem_db)
 end
 
+if GlobalSetting.respond_to?(:max_logster_logs)
+  Logster.store.max_backlog = GlobalSetting.max_logster_logs
+end
+
 # middleware that logs errors sits before multisite
 # we need to establish a connection so redis connection is good
 # and db connection is good

GitHub sha: da578e92

DEV: document max_logster_logs in discourse_defaults.conf