github.com/olljanat/moby@v1.13.1/daemon/cluster/listen_addr_solaris.go (about)

     1  package cluster
     2  
     3  import (
     4  	"bufio"
     5  	"fmt"
     6  	"net"
     7  	"os/exec"
     8  	"strings"
     9  )
    10  
    11  func (c *Cluster) resolveSystemAddr() (net.IP, error) {
    12  	defRouteCmd := "/usr/sbin/ipadm show-addr -p -o addr " +
    13  		"`/usr/sbin/route get default | /usr/bin/grep interface | " +
    14  		"/usr/bin/awk '{print $2}'`"
    15  	out, err := exec.Command("/usr/bin/bash", "-c", defRouteCmd).Output()
    16  	if err != nil {
    17  		return nil, fmt.Errorf("cannot get default route: %v", err)
    18  	}
    19  
    20  	defInterface := strings.SplitN(string(out), "/", 2)
    21  	defInterfaceIP := net.ParseIP(defInterface[0])
    22  
    23  	return defInterfaceIP, nil
    24  }
    25  
    26  func listSystemIPs() []net.IP {
    27  	var systemAddrs []net.IP
    28  	cmd := exec.Command("/usr/sbin/ipadm", "show-addr", "-p", "-o", "addr")
    29  	cmdReader, err := cmd.StdoutPipe()
    30  	if err != nil {
    31  		return nil
    32  	}
    33  
    34  	if err := cmd.Start(); err != nil {
    35  		return nil
    36  	}
    37  
    38  	scanner := bufio.NewScanner(cmdReader)
    39  	go func() {
    40  		for scanner.Scan() {
    41  			text := scanner.Text()
    42  			nameAddrPair := strings.SplitN(text, "/", 2)
    43  			// Let go of loopback interfaces and docker interfaces
    44  			systemAddrs = append(systemAddrs, net.ParseIP(nameAddrPair[0]))
    45  		}
    46  	}()
    47  
    48  	if err := scanner.Err(); err != nil {
    49  		fmt.Printf("scan underwent err: %+v\n", err)
    50  	}
    51  
    52  	if err := cmd.Wait(); err != nil {
    53  		fmt.Printf("run command wait: %+v\n", err)
    54  	}
    55  
    56  	return systemAddrs
    57  }