Run multiple replicas of similarity-service

Author: meier-rene

compose/docker-compose.yaml

@@ -51,13 +51,25 @@ services:
   similarity-service:
     image: quay.io/massbank/massbank3-similarity-service:latest
     restart: always
-    ports:
-      - "${SIMILARITY_SERVICE_PORT}:8080"
+#    ports:
+#      - "${SIMILARITY_SERVICE_PORT}:8080"
     environment:
       - MSP
       - VERBOSE=${SIMILARITY_SERVICE_VERBOSE}
     volumes:
       - "${MSP_LOCAL_PATH}${MSP}:${MSP}"
+    deploy:
+      replicas: 2
+
+  nginx:
+    image: nginx:latest
+    restart: always
+    ports:
+      - "8082:80"
+    volumes:
+      - ./nginx.conf:/etc/nginx/nginx.conf:ro
+    depends_on:
+      - similarity-service
 
   export-service:
     image: quay.io/massbank/massbank3-export-service:latest

compose/nginx.conf

@@ -0,0 +1,15 @@
+events {}
+
+http {
+    upstream similarity_service {
+        server similarity-service:8080;
+    }
+
+    server {
+        listen 80;
+
+        location / {
+            proxy_pass http://similarity_service;
+        }
+    }
+}