fix: use named volume for prometheus config, seed in CD workflow

.gitea/workflows/cd.yml

@@ -40,6 +40,24 @@ jobs:
           NGINX_PORT=80
           EOF
 
+      - name: Seed Prometheus config
+        run: |
+          mkdir -p monitoring/prometheus
+          cat > monitoring/prometheus/prometheus.yml << 'EOF'
+          global:
+            scrape_interval: 15s
+            evaluation_interval: 15s
+
+          scrape_configs:
+            - job_name: 'prometheus'
+              static_configs:
+                - targets: ['localhost:9090']
+
+            - job_name: 'linearvoid'
+              static_configs:
+                - targets: ['playout:8081', 'chat:3000', 'nginx:80']
+          EOF
+
       - name: Deploy with docker-compose
         env:
           DOCKER_HOST: tcp://192.168.88.40:2375

docker-compose.prod.yml

@@ -102,7 +102,7 @@ services:
     container_name: linearvoid-prometheus
     restart: unless-stopped
     volumes:
-      - ./monitoring/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
+      - prometheus-config:/etc/prometheus
       - prometheus-data:/prometheus
     ports:
       - "9090:9090"
@@ -142,4 +142,5 @@ volumes:
   redis-data:
   postgres-data:
   prometheus-data:
+  prometheus-config:
   grafana-data: