func()

in executors/docker/docker.go [1559:1598]

• 31 lines of code
• 11 McCabe index (conditional complexity)

func (e *executor) getContainerExposedPorts(container *types.Container) ([]int, error) {
	inspect, err := e.client.ContainerInspect(e.Context, container.ID)
	if err != nil {
		return nil, err
	}

	for _, env := range inspect.Config.Env {
		key, val, ok := strings.Cut(env, "=")
		if !ok {
			continue
		}

		if strings.EqualFold(key, "HEALTHCHECK_TCP_PORT") {
			port, err := strconv.ParseInt(val, 10, 32)
			if err != nil {
				return nil, fmt.Errorf("invalid health check tcp port: %v", val)
			}

			return []int{int(port)}, nil
		}
	}

	// maxPortsCheck is the maximum number of ports that we'll check to see
	// if a service is running
	const maxPortsCheck = 20

	var ports []int
	for port := range inspect.Config.ExposedPorts {
		start, end, err := port.Range()
		if err == nil && port.Proto() == "tcp" {
			for i := start; i <= end && len(ports) < maxPortsCheck; i++ {
				ports = append(ports, i)
			}
		}
	}

	sort.Ints(ports)

	return ports, nil
}