Add an RPM spec file and customize ansible roles_path

Install roles under /usr/local/share/kubespray/roles,
playbooks - /usr/local/share/kubespray/playbooks/,
ansible.cfg and inventory group vars - into /etc/kubespray.
Ship README and an example inventory as the package docs.
Update the ansible.cfg to consume the roles from the given path,
including virtualenvs prefix, if defined.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

ansible.cfg

@@ -10,3 +10,4 @@ fact_caching_connection = /tmp
 stdout_callback = skippy
 library = ./library
 callback_whitelist = profile_tasks
+roles_path = roles:$VIRTUAL_ENV/usr/local/share/kubespray/roles:$VIRTUAL_ENV/usr/local/share/ansible/roles

contrib/ansible-kubespray.spec

@@ -0,0 +1,57 @@
+%global srcname ansible_kubespray
+
+%{!?upstream_version: %global upstream_version %{version}%{?milestone}}
+
+Name:           ansible-kubespray
+Version:        XXX
+Release:        XXX
+Summary:        Ansible modules for installing Kubernetes clusters
+
+Group:          System Environment/Base
+License:        ASL 2.0
+URL:            https://github.com/kubernetes-incubator/kubespray
+Source0:        https://github.com/kubernetes-incubator/kubespray/archive/%{upstream_version}.tar.gz
+
+BuildArch:      noarch
+BuildRequires:  git
+BuildRequires:  python2-devel
+BuildRequires:  python-setuptools
+BuildRequires:  python-d2to1
+BuildRequires:  python-pbr
+
+Requires: ansible
+Requires: python-jinja2
+Requires: python-netaddr
+
+%description
+
+Ansible-kubespray is a set of Ansible modules and playbooks for installing
+a Kubernetes cluster.
+
+%prep
+%autosetup -n %{name}-%{upstream_version} -S git
+
+
+%build
+%{__python2} setup.py build
+
+
+%install
+export PBR_VERSION=%{version}
+export SKIP_PIP_INSTALL=1
+%{__python2} setup.py install --skip-build --root %{buildroot}
+
+
+%files
+%doc README.md
+%doc inventory/inventory.example
+%config /etc/kubespray/ansible.cfg
+%config /etc/kubespray/inventory/group_vars/all.yml
+%config /etc/kubespray/inventory/group_vars/k8s-cluster.yml
+%license LICENSE
+%{python2_sitelib}/%{srcname}-%{version}-py%{python2_version}.egg-info
+/usr/local/share/kubespray/roles/
+/usr/local/share/kubespray/playbooks/
+
+
+%changelog