The tests hosts are generated with IP addresses in env_setup, but
removed without update_dns turned on. Therefore the IP addresses are not
removed from DNS.
This results in a failure if the host test test_host_ipaddresses is run
afterwards.
Update service README file and add tests for executing plugin with
`ipaapi_context` set to `client`.
A new test playbook can be found at:
tests/service/test_service_client_context.yml
The new test file can be executed in a FreeIPA client host that is
not a server. In this case, it should be defined in the `ipaclients`
group, in the inventory file.
The attribute `allow_retrieve_keytab_host` was not working due to
wrong processing of the input and verification if the values should
be updated. Both the issues are fixed by this change.
Tests were added to better verify service keytab members.
