bundles/nginx: add anonymous timing logging for http requests

bundles/nginx/files/logrotate.conf

@@ -0,0 +1,28 @@
+/var/log/nginx/*.log {
+    compress
+    copytruncate
+    create 0640 www-data adm
+    daily
+    dateext
+    missingok
+    notifempty
+    rotate ${node.metadata.get('nginx/log_retention_days', 7)}
+    sharedscripts
+    prerotate
+        if [ -d /etc/logrotate.d/httpd-prerotate ]; then \
+            run-parts /etc/logrotate.d/httpd-prerotate; \
+        fi
+    endscript
+}
+
+/var/log/nginx-timing/*.log {
+    compress
+    copytruncate
+    create 0644 www-data adm
+    dateext
+    missingok
+    notifempty
+    rotate 3
+    sharedscripts
+    size 1M
+}