copr-backend: install lighttpd's logrotate config for repo hit counting

roles/copr/backend/files/logrotate/lighttpd

@@ -0,0 +1,21 @@
+/var/log/lighttpd/access.log {
+    rotate 5
+    daily
+    missingok
+    notifempty
+    prerotate
+        copr_log_hitcounter.py /var/log/lighttpd/access.log &>/dev/null || :
+    endscript
+    postrotate
+        /usr/bin/killall -HUP lighttpd &>/dev/null || :
+    endscript
+}
+
+/var/log/lighttpd/error.log {
+    rotate 5
+    missingok
+    notifempty
+    postrotate
+        /usr/bin/killall -HUP lighttpd &>/dev/null || :
+    endscript
+}

roles/copr/backend/tasks/main.yml

@@ -180,6 +180,9 @@
 - copy: src="cleanup_vms.sh" dest=/etc/cron.hourly/copr_cleanup_vms.sh mode=755
   when: not devel
 
+- name: install lighttpd logrotate config
+  copy: src="logrotate/lighttpd" dest=/etc/logrotate.d/lighttpd owner=root group=root mode=644
+
 - name: setup monitoring
   include: "monitoring.yml"