func()

in plugins/ipam/ipstore/ipstore.go [88:110]

• 21 lines of code
• 7 McCabe index (conditional complexity)

func (manager *IPManager) GetAvailableIP(id string) (string, error) {
	var err error
	nextIP := manager.lastKnownIP
	for {
		nextIP, err = NextIP(nextIP, manager.subnet)
		if err != nil {
			return "", err
		}
		err = manager.Assign(nextIP.String(), id)
		if err != nil && err != store.ErrKeyExists {
			return "", errors.Wrapf(err, "ipstore get ip: failed to assign ip in ipam")
		} else if err == store.ErrKeyExists {
			// ip already be used
		} else {
			// assing the ip succeed
			manager.lastKnownIP = nextIP
			return nextIP.String(), nil
		}
		if nextIP.Equal(manager.lastKnownIP) {
			return "", errors.New("getAvailableIP ipstore: failed to find available ip addresses in the subnet")
		}
	}
}