Add Deckhand coverage job

This commits adds a Deckhand coverage job for gauging the test
coverage of Deckhand to tox.ini.

Change-Id: If3cb7b31127dd5cd58c7a3f8dc87f1f7a4f74101

.coveragerc

@@ -0,0 +1,7 @@
+[run]
+branch = True
+source = deckhand
+omit = deckhand/tests/*
+
+[report]
+ignore_errors = True

.gitignore

@@ -24,7 +24,6 @@ wheels/
 *.egg-info/
 .installed.cfg
 *.egg
-etc/*.sample
 
 # PyInstaller
 #  Usually these files are written by a python script from a template
@@ -47,6 +46,7 @@ coverage.xml
 *.cover
 .hypothesis/
 .testrepository/*
+cover/*
 
 # Translations
 *.mo

test-requirements.txt

@@ -7,6 +7,8 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
 falcon==1.1.0
 
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
+coverage!=4.4,>=4.0 # Apache-2.0
 mock>=2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 mox3!=0.19.0,>=0.7.0 # Apache-2.0

tox.ini

@@ -38,6 +38,13 @@ commands =
   find . -type f -name "*.pyc" -delete
   ostestr '{posargs}'
 
+[testenv:cover]
+commands =
+  coverage erase
+  find . -type f -name "*.pyc" -delete
+  python setup.py testr --coverage --testr-args='{posargs}'
+  coverage report
+
 [testenv:genconfig]
 commands = oslo-config-generator --config-file=etc/deckhand/config-generator.conf