Move group_vars next to our inventory file

By moving our group_vars next to our inventory files, we allow users
to start customizing them.

Change-Id: Ia5354bb0d730551debcd7da95dd9256eaf080099
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

tests/playbooks/post.yaml

@@ -3,7 +3,7 @@
     - name: Run ansible-playbook for collect-logs.yaml
       args:
         chdir: "{{ zuul.project.src_dir }}"
-      shell: tox -evenv -- ansible-playbook -i inventory/single-node tests/collect-logs.yaml
+      shell: tox -evenv -- ansible-playbook -i inventory/testing/hosts tests/collect-logs.yaml
 
     - name: Collect log files
       synchronize:

tests/playbooks/run.yaml

@@ -3,14 +3,14 @@
     - name: Bootstrap bastion node using ansible
       args:
         chdir: "{{ zuul.project.src_dir }}"
-      shell: tox -evenv -- ansible-playbook -i inventory/single-node playbooks/bastion.yaml
+      shell: tox -evenv -- ansible-playbook -i inventory/testing/hosts playbooks/bastion.yaml
 
     - name: Run ansible-playbook for site.yaml
       args:
         chdir: "{{ zuul.project.src_dir }}"
-      shell: tox -evenv -- ansible-playbook -i inventory/single-node playbooks/site.yaml --extra-vars "@tests/extra-vars.yaml"
+      shell: tox -evenv -- ansible-playbook -i inventory/testing/hosts playbooks/site.yaml --extra-vars "@tests/extra-vars.yaml"
 
     - name: Run ansible-playbook for prove.yaml
       args:
         chdir: "{{ zuul.project.src_dir }}"
-      shell: tox -evenv -- ansible-playbook -i inventory/single-node playbooks/prove.yaml
+      shell: tox -evenv -- ansible-playbook -i inventory/testing/hosts playbooks/prove.yaml