Move ansible.cfg to tests (#20)

Move the cfg file to avoid collisions
Add README for testing

Signed-off-by: Ygal Blum <ygal.blum@gmail.com>

tests/README.md

@@ -0,0 +1,39 @@
+# Testing the LVM Snapshot Role
+
+## Prerequisites
+
+- All the tests are in the form of ansible playbooks.
+- All playbooks expect that the target machine will have a secondary storage device to be used for testing.
+
+## Variables
+The variables may be passed as part of the inventory or using a separate file.
+
+```yaml
+device: < device node without `/dev`. e.g. vdb >
+```
+
+## Ansible Configuration
+
+In order to run the tests from the repo without having to install them,
+the tests directory includes an [ansible.cfg](./ansible.cfg) file.
+Make sure to point to it when running the test playbook
+
+## Running a test
+
+### Inventory file
+
+In this example, the `device` parameter is passed in the `inventory.yml` file
+```yaml
+all:
+  hosts:
+    <FQDN of test machine>:
+      device: vdb
+```
+
+### Command line
+
+Running the [snapshot revert playbook](./test-revert-playbook.yml) test from the repo
+
+```bash
+ANSIBLE_CONFIG=./tests/ansible.cfg ansible-playbook -K  -i inventory.yml tests/test-revert-playbook.yml
+```

ansible.cfg → tests/ansible.cfg

@@ -1,2 +1,2 @@
 [defaults]
-roles_path=~/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:./roles
+roles_path=~/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:../roles