本文整理汇总了Golang中github.com/flynn/flynn/Godeps/_workspace/src/github.com/docker/docker/engine.Job.GetenvInt方法的典型用法代码示例。如果您正苦于以下问题：Golang Job.GetenvInt方法的具体用法？Golang Job.GetenvInt怎么用？Golang Job.GetenvInt使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/flynn/flynn/Godeps/_workspace/src/github.com/docker/docker/engine.Job的用法示例。
在下文中一共展示了Job.GetenvInt方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: AllocatePort
// Allocate an external port and map it to the interface
func AllocatePort(job *engine.Job) engine.Status {
var (
err error
ip = defaultBindingIP
id = job.Args[0]
hostIP = job.Getenv("HostIP")
hostPort = job.GetenvInt("HostPort")
containerPort = job.GetenvInt("ContainerPort")
proto = job.Getenv("Proto")
network = currentInterfaces.Get(id)
)
if hostIP != "" {
ip = net.ParseIP(hostIP)
if ip == nil {
return job.Errorf("Bad parameter: invalid host ip %s", hostIP)
}
}
// host ip, proto, and host port
var container net.Addr
switch proto {
case "tcp":
container = &net.TCPAddr{IP: network.IP, Port: containerPort}
case "udp":
container = &net.UDPAddr{IP: network.IP, Port: containerPort}
default:
return job.Errorf("unsupported address type %s", proto)
}
//
// Try up to 10 times to get a port that's not already allocated.
//
// In the event of failure to bind, return the error that portmapper.Map
// yields.
//
var host net.Addr
for i := 0; i < MaxAllocatedPortAttempts; i++ {
if host, err = portmapper.Map(container, ip, hostPort); err == nil {
break
}
// There is no point in immediately retrying to map an explicitly
// chosen port.
if hostPort != 0 {
job.Logf("Failed to allocate and map port %d: %s", hostPort, err)
break
}
job.Logf("Failed to allocate and map port: %s, retry: %d", err, i+1)
}
if err != nil {
return job.Error(err)
}
network.PortMappings = append(network.PortMappings, host)
out := engine.Env{}
switch netAddr := host.(type) {
case *net.TCPAddr:
out.Set("HostIP", netAddr.IP.String())
out.SetInt("HostPort", netAddr.Port)
case *net.UDPAddr:
out.Set("HostIP", netAddr.IP.String())
out.SetInt("HostPort", netAddr.Port)
}
if _, err := out.WriteTo(job.Stdout); err != nil {
return job.Error(err)
}
return engine.StatusOK
}