Add .gitignore for specific project
Add .gitignore for specific project

Add .gitignore file for the etcd-backed Docker Swarm cluster using Photon OS to ignore customized etcd override files generated from ERB template.

Signed-off-by: Scott S. Lowe <4438a3189c2e58cebd81dd6bb6e49e12f5ad0fd6@scottlowe.org>

lowescott/learning-tools,lowescott/learning-tools,lowescott/learning-tools,lowescott/learning-tools