#!/usr/bin/python
import json
import warnings

def __run__(params):

    warnings.filterwarnings("ignore")

    try:
        from novaclient.client import Client
        from keystoneauth1.identity import v3
        from keystoneauth1 import session
    except ImportError:
        return [1, 'WARNING  - Error: Please install python-novaclient']

    try:
        os_auth_url = params.get("auth_url", "http://localhost:5000/v2.0")
        os_username = params.get("username", "admin")
        os_password = params.get("password", "admin")
        os_tenant_name = params.get("tenant_name", "admin")
        if os_auth_url.endswith('v3'):
            auth = v3.Password(
                auth_url=os_auth_url,
                username=os_username,
                password=os_password,
                project_name=os_tenant_name,
                user_domain_name='Default',
                project_domain_name='Default',
            )
            sess = session.Session(auth=auth)
            nova = Client('2', session=sess)
        else:
            nova = Client('2.0', username=os_username, password=os_password,
                tenant_name=os_tenant_name, auth_url=os_auth_url, insecure=False)
    except Exception, e:
        return [2, 'CRITICAL - Error: %s' % repr(e)]

    try:
        servers = []
        for server in nova.servers.list(search_opts={'all_tenants': 1}):
            if server.status != 'ACTIVE':
                servers.append("%s has state %s" % (server.name, server.status))
        if servers:
            return [1, 'WARNING - %s ' % (json.dumps(servers))]
        else:
            return [0, 'OK - All servers in Openstack with status Active']
    except Exception as e:
       return [1, 'WARNING - %s' % str(e)]