Make synapse logging configurable

[famedly-bot]

In GitLab by @jcgruenhage on Sep 21, 2022, 14:09

We're currently not having the synapse logging config very configurable. A look at my stash revealed this diff:

--- a/roles/synapse/files/log.config
+++ b/roles/synapse/files/log.config
@@ -24,6 +24,9 @@ loggers:
         # information such as access tokens.
         level: INFO
 
+    token_authenticator:
+        level: DEBUG
+
 root:
     level: INFO
     handlers: [console]

We frequently need to handle logs for different modules and plugins, or specific parts of synapse when debugging issues, and not having the ability to set up those log levels via ansible makes debugging with frequent rollouts a big pain.