Improve integration tests

Co-authored-by: Julien Salleyron <julien.salleyron@gmail.com>

integration/resources/compose/consul_catalog.yml

@@ -2,11 +2,24 @@ version: "3.8"
 services:
   consul:
     image: consul:1.6.2
-    command: agent -server -bootstrap -ui -client 0.0.0.0 -hcl 'connect { enabled = true }'
+    command:
+      - agent
+      - -server
+      - -bootstrap
+      - -ui
+      - -client
+      - 0.0.0.0
+      - -hcl
+      - 'connect { enabled = true }'
 
   consul-agent:
     image: consul:1.6.2
-    command: agent -retry-join consul -client 0.0.0.0
+    command:
+      - agent
+      - -retry-join
+      - consul
+      - -client
+      - 0.0.0.0
 
   whoami1:
     image: traefik/whoami
@@ -30,8 +43,3 @@ services:
       PORT: 443
       BIND: 0.0.0.0
       CONSUL_HTTP_ADDR: http://consul:8500
-
-networks:
-  default:
-    name: traefik-test-network
-    external: true