Initial Tox/Zuul setup

Signed-off-by: Scott Little <scott.little@windriver.com>
Change-Id: I0029816399c2b346c66a78ab9744c23784069506

.zuul.yaml

@@ -0,0 +1,7 @@
+- project:
+    check:
+      jobs:
+        - openstack-tox-linters
+    gate:
+      jobs:
+        - openstack-tox-linters

test-requirements.txt

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+bashate >= 0.2
+PyYAML >= 3.1.0
+yamllint >= 0.5.2

tox.ini

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+[tox]
+envlist = linters
+minversion = 2.3
+skipsdist = True
+
+[testenv]
+install_command = pip install -U {opts} {packages}
+setenv = VIRTUAL_ENV={envdir}
+         OS_STDOUT_CAPTURE=1
+         OS_STDERR_CAPTURE=1
+         OS_TEST_TIMEOUT=60
+deps = -r{toxinidir}/test-requirements.txt
+
+[testenv:linters]
+basepython = python3
+allowlist_externals = bash
+# Bashate warnings
+# E001 Trailing Whitespace
+# E002 Tab indents
+# E003 Indent not multiple of 4
+# E006 Line too long
+# E010 The "do" should be on same line as for
+# E011 Then keyword is not on same line as if or elif keyword
+# E020 Function declaration not in format ^function name {$
+# E042 local declaration hides errors
+commands =
+  bash -c "find {toxinidir}                   \
+         -not \( -type d -name .?\* -prune \) \
+         -type f                              \
+         -not -name \*~                       \
+         -not -name \*.md                     \
+         -name \*.sh                          \
+         -print0 | xargs --no-run-if-empty -0 bashate -v -e 'E*' -i E003,E006,E010"
+  bash -c "find {toxinidir}                   \
+         -not \( -type d -name .?\* -prune \) \
+         -type f                              \
+         -not -name \*~                       \
+         -not -name \*.md                     \
+         \( -exec bash -c 'file \{\} | grep -q shell' \; \
+         -a ! -name '*.sh' \) \
+         -print0 | xargs --no-run-if-empty -0 bashate -v -e 'E*' -i E001,E002,E003,E006,E010,E011,E020,E042"
+  bash -c "find {toxinidir}        \
+            \( -name stx -prune \)         \
+            -o \( -name .tox -prune \)         \
+            -o -type f -name '*.yaml'       \
+            -print0 | xargs -0 yamllint"
+
+[testenv:pep8]
+basepython = python3
+usedevelop = False
+skip_install = True
+deps =
+    pep8
+commands =
+    pep8
+
+[testenv:venv]
+basepython = python3
+commands = {posargs}
+