[CORD-1481]
Update Ansible and docker-compose

Change-Id: Ifc48827de42a1677d19b2826c6d1047d96a21bcf
diff --git a/roles/compute-node/tasks/main.yml b/roles/compute-node/tasks/main.yml
index 7572c64..fe2b1ae 100644
--- a/roles/compute-node/tasks/main.yml
+++ b/roles/compute-node/tasks/main.yml
@@ -81,8 +81,7 @@
 - name: Ensure Docker Ansible Support
   become: yes
   pip:
-    name=docker-py
-    version=1.9
+    name: "docker==2.4.2"
 
 - name: Set Default Password
   become: yes