docker-compose: fix started detection

configs/nginx-frontend-htpasswd.conf

@@ -96,7 +96,7 @@ server {
             expires    epoch;
             add_header Cache-Control no-cache;
 
-            if (!-f $document_root/../started) {
+            if (!-f $document_root/../../startingblock/started) {
                 rewrite ^/ /wait.json;
             }
         }

docker-compose.yml

@@ -56,6 +56,7 @@ services:
       context: .
       dockerfile: Dockerfile-frontend
     image: nemunaire/fic-frontend:latest
+    command: "-startedFile /srv/startingblock/started"
     ports:
       - "8080:8080"
     volumes:
@@ -64,6 +65,7 @@ services:
       - teams:/srv/TEAMS:ro
       - settings:/srv/SETTINGS:ro
       - submissions:/srv/submissions
+      - startingblock:/srv/startingblock
     depends_on:
       - fic-backend
 
@@ -93,6 +95,7 @@ services:
       - files:/srv/FILES:ro
       - settings:/srv/SETTINGS:ro
       - teams:/srv/TEAMS:ro
+      - startingblock:/srv/startingblock:ro
     depends_on:
       - fic-frontend
       - fic-admin
@@ -104,5 +107,9 @@ volumes:
   htdocs:
   pki:
   settings:
+  startingblock:
+    driver_opts:
+      type: tmpfs
+      device: tmpfs
   submissions:
   teams: