[CORD-2891]
Update docker related python packages (in 4 places...)

Change-Id: Ifa1202aa5c441ad45d78fa7272e262fedc93efd9
diff --git a/roles/compute-node/tasks/main.yml b/roles/compute-node/tasks/main.yml
index 910e428..632b4c7 100644
--- a/roles/compute-node/tasks/main.yml
+++ b/roles/compute-node/tasks/main.yml
@@ -96,7 +96,7 @@
 - name: Ensure Docker Ansible Support
   become: yes
   pip:
-    name: "docker==2.4.2"
+    name: "docker==3.2.1"
 
 - name: Set Default Password
   become: yes