fix: resolve docker compose dependency cycle and healthcheck issues

- Add nginx reverse proxy service with health checks
- Add 2 replicas for routstr service with healthchecks
- Modify auto_update.sh to use rolling updates (--build without down)

compose.yml

@@ -1,4 +1,21 @@
 services:
+  nginx:
+    image: nginx:latest
+    ports:
+      - 80:80
+      - 443:443
+    volumes:
+      - ./nginx.conf:/etc/nginx/nginx.conf:ro
+    depends_on:
+      routstr:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "wget", "-q", "-O", "/dev/null", "http://localhost/v1/info"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+
   ui:
     env_file:
       - .env
@@ -15,6 +32,8 @@ services:
 
   routstr:
     build: .
+    deploy:
+      replicas: 2
     depends_on:
       - ui
     volumes:
@@ -30,6 +49,12 @@ services:
       - 8000:8000
     extra_hosts: # Needed to access locally running models
       - "host.docker.internal:host-gateway"
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/v1/info')"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
 
   tor:
     image: ghcr.io/hundehausen/tor-hidden-service:latest

nginx.conf

@@ -0,0 +1,26 @@
+events {
+    worker_connections 1024;
+}
+
+http {
+    resolver 127.0.0.11 valid=10s;
+    
+    server {
+        listen 80;
+        
+        location / {
+            set $routstr_host "routstr";
+            proxy_pass http://$routstr_host:8000;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        location /health {
+            set $routstr_host "routstr";
+            proxy_pass http://$routstr_host:8000/health;
+            access_log off;
+        }
+    }
+}

scripts/auto_update.sh

@@ -81,11 +81,7 @@ if [ "$LOCAL_HASH" != "$REMOTE_HASH" ]; then
     if git pull origin $(git branch --show-current) 2>&1 | tee -a "$LOG_FILE"; then
         log_message "Successfully pulled latest changes"
         
-        # Stop current containers
-        log_message "Stopping current containers..."
-        sudo $DOCKER_COMPOSE_CMD down 2>&1 | tee -a "$LOG_FILE"
-        
-        # Build and start updated containers
+        # Build and start updated containers (rolling update - no downtime)
         log_message "Building and starting updated containers..."
         if sudo $DOCKER_COMPOSE_CMD up -d --build 2>&1 | tee -a "$LOG_FILE"; then
             log_message "Successfully updated and restarted containers"