Activate Apache debug logging

Debug logging actually does not add any logs, if the server runs without
issues authentication logging is excluded. However, in case of issues
these additional logs provide helpful information.

Change-Id: Ib0ef7eaafb031cf993b2f63edc6e2c712aa12cfb
diff --git a/container-images/apache-git-http-backend/config/git-http-backend.conf b/container-images/apache-git-http-backend/config/git-http-backend.conf
index 2c84d00..9de06b1 100644
--- a/container-images/apache-git-http-backend/config/git-http-backend.conf
+++ b/container-images/apache-git-http-backend/config/git-http-backend.conf
@@ -22,7 +22,7 @@
   # error, crit, alert, emerg.
   # It is also possible to configure the loglevel for particular
   # modules, e.g.
-  LogLevel warn
+  LogLevel debug authz_core:warn
 
   # Don't log probe requests performed by kubernetes
   SetEnvIFNoCase User-Agent "^kube-probe" dontlog
diff --git a/container-images/apache-git-http-backend/config/httpd.conf b/container-images/apache-git-http-backend/config/httpd.conf
index 0bb6241..d91ef8d 100644
--- a/container-images/apache-git-http-backend/config/httpd.conf
+++ b/container-images/apache-git-http-backend/config/httpd.conf
@@ -307,7 +307,7 @@
 # Possible values include: debug, info, notice, warn, error, crit,
 # alert, emerg.
 #
-LogLevel warn
+LogLevel debug authz_core:warn
 
 <IfModule log_config_module>
     #