Currently, the image publish job is not functioning. This appears to be
due to an invalid secret name. Hyphens cause problems in Ansible
variable names [0]. This change converts the secrets in this repository
to use underscores.
[0] https://github.com/ansible/ansible/issues/3907
Closes #33
Change-Id: I2b1db9ba01a425788541afd8938afef92ef539d6
Signed-off-by: Drew Walters <andrew.walters@att.com>