Add docker deployment with lb

Author: stfnkth

deployment/docker-compose/docker-compose.lb.yml

@@ -0,0 +1,15 @@
+services:
+  nginx:
+    image: nginx:latest
+    depends_on: 
+      - shiny_app
+    ports:
+      - "8080:80"
+    volumes:
+      - ./files/nginx.conf:/etc/nginx/nginx.conf:ro
+  shiny_app:
+    # container_name: shiny_app
+    image: ghcr.io/eoda-dev/shiny-meets-fastapi:latest
+    restart: always
+    deploy:
+      replicas: 2

deployment/docker-compose/files/nginx.conf

@@ -0,0 +1,26 @@
+events { }
+
+http {
+    map $http_upgrade $connection_upgrade {
+        default upgrade;
+        ''      close;
+    }
+    
+    upstream shiny_app {
+        server shiny_app:3333;
+    }
+
+    server {
+        listen 80;
+        client_max_body_size 20M;
+
+        location / {
+            proxy_pass http://shiny_app;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection $connection_upgrade;
+        }
+    }
+}