39 lines
803 B
Go
39 lines
803 B
Go
package portmapper
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import (
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"net"
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"os/exec"
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"strconv"
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"syscall"
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)
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func newProxyCommand(proto string, hostIP net.IP, hostPort int, containerIP net.IP, containerPort int, proxyPath string) (userlandProxy, error) {
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path := proxyPath
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if proxyPath == "" {
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cmd, err := exec.LookPath(userlandProxyCommandName)
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if err != nil {
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return nil, err
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}
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path = cmd
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}
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args := []string{
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path,
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"-proto", proto,
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"-host-ip", hostIP.String(),
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"-host-port", strconv.Itoa(hostPort),
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"-container-ip", containerIP.String(),
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"-container-port", strconv.Itoa(containerPort),
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}
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return &proxyCommand{
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cmd: &exec.Cmd{
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Path: path,
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Args: args,
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SysProcAttr: &syscall.SysProcAttr{
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Pdeathsig: syscall.SIGTERM, // send a sigterm to the proxy if the daemon process dies
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},
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},
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}, nil
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}
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