Sort services so that they always start in correct order

docker-compose.yml

@@ -1,6 +1,26 @@
 version: '3'
 
 services:
+  postgresql:
+    image: postgres:9.5-alpine
+    healthcheck:
+      test: [ "CMD", "pg_isready", "-q", "-d", "postgres", "-U", "root" ]
+      timeout: 45s
+      interval: 10s
+      retries: 10
+    restart: always
+    environment:
+      - POSTGRES_USER=root
+      - POSTGRES_PASSWORD=password
+    volumes:
+      - ./scripts/db:/docker-entrypoint-initdb.d/
+
+  vault:
+    image: vault:1.6.3
+    environment:
+      - SKIP_SETCAP=1
+      - VAULT_DEV_ROOT_TOKEN_ID=8fb95528-57c6-422e-9722-d2147bcba8ed
+
   accountapi:
     image: form3tech/interview-accountapi:v1.0.0-50-ga251d4fc
     restart: on-failure
@@ -21,22 +41,3 @@ services:
       - DATABASE-PASSWORD=123
     ports:
       - 8080:8080
-  postgresql:
-    image: postgres:9.5-alpine
-    healthcheck:
-      test: [ "CMD", "pg_isready", "-q", "-d", "postgres", "-U", "root" ]
-      timeout: 45s
-      interval: 10s
-      retries: 10
-    restart: always
-    environment:
-      - POSTGRES_USER=root
-      - POSTGRES_PASSWORD=password
-    volumes:
-      - ./scripts/db:/docker-entrypoint-initdb.d/
-
-  vault:
-    image: vault:1.6.3
-    environment:
-      - SKIP_SETCAP=1
-      - VAULT_DEV_ROOT_TOKEN_ID=8fb95528-57c6-422e-9722-d2147bcba8ed