Added the inventory information for ansible in the project and made it so that the file is only run once.

Updated python dependencies

docker/hosts

@@ -0,0 +1,14 @@
+#   - Comments begin with the '#' character
+#   - Blank lines are ignored
+#   - Groups of hosts are delimited by [header] elements
+#   - You can enter hostnames or ip addresses
+#   - A hostname/ip can be a member of multiple groups
+
+[brewman]
+acc ansible_host=vancity var_file=vars/acc.yml
+exp ansible_host=vancity var_file=vars/exp.yml
+hops ansible_host=vancity var_file=vars/hops.yml
+mhl ansible_host=vancity var_file=vars/mhl.yml
+
+[all:vars]
+ansible_python_interpreter=/usr/bin/python3