The `apt` and `yum` modules will automatically install python dependencies.
This change updates the existing integration tests to test whether auto-install
of dependencies is functioning properly.
Tests several ways to specify the repository. For every repo added, the test
asserts that:
* the apt-cache was updated as expected (depends on `update_cache` parameter)
* the PPA key was installed (depends on `repo` format)
To support parallel cloud test execution, create and provide a random string to
cloud integration tests. The variable 'resource_prefix' can be used in cloud
roles and during resource cleanup to safely create/destroy cloud-based
resources.
Additional changes include:
* The roles test_ec2_key and test_ec2_group were updated to use to
{{resource_prefix}}.
* Additionally, the Makefile was updated to set resource_prefix to a random
string. The Makefile will also use 'resource_prefix' during cloud_cleanup.
* All test_ec2* roles were updated to add 'setup_ec2' as a role dependency.
The 'service' utility was unable to find the 'ansible_test' service due to an
unexpected filename. This patch corrects the filename and adjusts the
permissions to match other service scripts within /etc/init/.
