Initial version of tox configuration

This is for test cases only.

tox.ini

@@ -0,0 +1,54 @@
+[tox]
+envlist = py26,py27,pep8
+minversion = 1.6
+skipsdist = True
+
+[testenv]
+# Note the hash seed is set to 0 until senlin can be tested with a
+# random hash seed successfully.
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+usedevelop = True
+install_command = pip install {opts} {packages}
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+commands =
+  python setup.py testr --slowest --testr-args='{posargs}'
+
+whitelist_externals = bash
+
+[testenv:pep8]
+commands =
+    flake8 senlin bin/senlin-api bin/senlin-engine bin/senlin-manage
+    # Check that .po and .pot files are valid:
+    bash -c "find senlin -type f -regex '.*\.pot?' -print0|xargs -0 -n 1 msgfmt --check-format -o /dev/null"
+
+[testenv:venv]
+commands = {posargs}
+
+[testenv:cover]
+commands =
+  python setup.py testr --coverage --testr-args='{posargs}'
+
+[testenv:docs]
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+       sphinxcontrib-httpdomain
+commands = python setup.py build_sphinx
+
+[testenv:genconfig]
+commands =
+  bash tools/config/generate_sample.sh -b . -p senlin -o etc/senlin
+
+[flake8]
+# H404 multi line docstring should start with a summary
+# H803 no full stop at the end of the commit message
+ignore = H404,H803
+show-source = true
+exclude=.venv,.git,.tox,dist,*openstack/common*,*lib/python*,*egg,tools,build
+# 28 is currently the most complex thing we have
+# TODO(asalkeld): get this number down to 20
+max-complexity=29
+
+[hacking]
+import_exceptions = senlin.common.i18n