Downgrade to taefik 2.10

Signed-off-by: Jason Cameron <git@jasoncameron.dev>

automation/add_judge.sh

@@ -57,10 +57,10 @@ docker service create \
     --replicas 1 \
     --constraint "$CONSTRAINT" \
     --network wlmoj_judge \
+    --cap-add SYS_PTRACE \
     --label "traefik.enable=true" \
-    --label "traefik.http.routers.${JUDGE_NAME}.rule=Host(\`judge\`)" \
+    --label "traefik.http.routers.judge.rule=Host(\`judge\`)" \
     --label "traefik.http.services.${JUDGE_NAME}.loadbalancer.server.port=9999" \
-    --cap-add SYS_PTRACE \
     --mount type=bind,src=/var/share/problems/,dst=/problems/ \
     ghcr.io/mcpt/wlmoj-judge:latest \
     run -p 9999 -c /judge.yml "bridged" "$JUDGE_NAME" "$JUDGE_AUTH_KEY"

dmoj/docker-stack.yml

@@ -198,26 +198,24 @@ services:
         delay: 24h
 
   traefik:
-    image: traefik:v3
+    image: traefik:v2.10
     command:
-      - "--docker=true"
-      - "--swarm=true"
-      - "--docker.exposedbydefault=false"
-      - "--docker.network=wlmoj_judge"
-      - "--entrypoints.judge.address=:9999"
+      - "--providers.docker=true"
+      - "--providers.docker.swarmMode=true"
+      - "--providers.docker.exposedbydefault=false"
+      - "--entrypoints.internal.address=:9999"
     networks:
-      - judge
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - wlmoj_judge
     deploy:
+      replicas: 1
       placement:
         constraints:
-          - node.role == manager
+          - node.role == manager  # Traefik should run on a manager node
       labels:
         - "traefik.enable=true"
-        - "traefik.http.routers.traefik.rule=Host(`traefik.local`)"
-        - "traefik.http.routers.traefik.service=api@internal"
-        - "traefik.http.routers.traefik.entrypoints=judge"
+        - "traefik.http.services.api.loadbalancer.server.port=8080"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
 
 networks:
   site: