enable metrics

rootfs/etc/s6-overlay/s6-rc.d/keycloak/run

@@ -1,6 +1,7 @@
 #!/bin/sh
 
 exec s6-setuidgid keycloak /home/keycloak/server/bin/kc.sh start \
+	--metrics-enabled true \
 	--optimized \
 	--db-url-host "$DB_HOST" \
 	--db-url-database "${DB_NAME:-keycloak}" \
@@ -9,5 +10,4 @@ exec s6-setuidgid keycloak /home/keycloak/server/bin/kc.sh start \
 	--hostname "$HOSTNAME" \
 	--http-enabled true \
 	--hostname-strict-backchannel=true \
-	--proxy edge \
-	--metrics-enabled true
+	--proxy edge