[CI][Docker] able to deploy/undeploy a monolithic eNB with a compose file:

-- The compose file still keeps a few template fields to be replaced
  -- initial scenario has a full UE attach / traffic test

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

ci-scripts/yaml_files/fr1_enb_mono_fdd_tim/docker-compose.yml

@@ -33,6 +33,12 @@ services:
         networks:
             public_net:
                 ipv4_address: 192.168.61.30
+        healthcheck:
+            # pgrep does NOT work
+            test: /bin/bash -c "ps aux | grep -v grep | grep -c softmodem"
+            interval: 10s
+            timeout: 5s
+            retries: 5
 
 networks:
     public_net: