Add linter and bashate tox checks

For correct job succeed need to add tox
checkers.

Change-Id: I725079819fc00c12da62389142a2b627e8352761

tools/yamllint.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+set -ex
+
+workdir=$(dirname $0)
+yamllint -c $workdir/yamllint.yaml $(find . -not -path '*/\.*' -type f -name '*.yaml')

tools/yamllint.yaml

@@ -0,0 +1,21 @@
+extends: default
+
+rules:
+  braces:
+    max-spaces-inside: 1
+  comments:
+    level: error
+  comments-indentation:
+    level: warning
+  document-end:
+    present: no
+  document-start:
+    level: error
+    present: no
+  empty-lines:
+    max: 1
+    max-start: 0
+    max-end: 0
+  line-length:
+    level: warning
+    max: 120

tox.ini

@@ -0,0 +1,17 @@
+[tox]
+minversion = 1.6
+envlist = linters,bashate
+skipsdist = True
+
+[testenv:venv]
+commands = {posargs}
+
+[testenv:linters]
+deps = yamllint
+commands =
+    {toxinidir}/tools/yamllint.sh
+
+[testenv:bashate]
+deps = bashate>=0.2
+whitelist_externals = bash
+commands = bash -c "find {toxinidir} -type f -name '*.sh' -not -path '*/.tox/*' -print0 | xargs -0 bashate -v"