def get_tag(tag_name, controller_ip):
try:
if r_server.sismember('tags:%s' % controller_ip, tag_name):
tag = {}
tag['name'] = tag_name
tag['address'] = r_server.hget('tag:%s:%s' % (controller_ip, tag_name), 'address')
tag['type'] = r_server.hget('tag:%s:%s' % (controller_ip, tag_name), 'type')
tag['controller_ip'] = r_server.hget('tag:%s:%s' % (controller_ip, tag_name), 'controller_ip')
return tag
else:
return None
except RedisError:
return None
def delete_tag(tag_name, controller_ip):
try:
if r_server.sismember('tags:%s' % controller_ip, tag_name):
print('removing tag: %s, with ip: %s' % (tag_name, controller_ip))
r_server.srem('tags:%s' % controller_ip, tag_name)
r_server.delete('tag:%s:%s' % (controller_ip, tag_name))
if not r_server.smembers('tags:%s' % controller_ip):
r_server.srem('controllers', controller_ip)
print('No more tags for the controller, removing controller')
return True
else:
return False
except RedisError:
return False