github.com/docker/docker@v299999999.0.0-20200612211812-aaf470eca7b5+incompatible/integration/network/dns_test.go (about)

     1  package network // import "github.com/docker/docker/integration/network"
     2  
     3  import (
     4  	"context"
     5  	"testing"
     6  	"time"
     7  
     8  	"github.com/docker/docker/api/types"
     9  	"github.com/docker/docker/integration/internal/container"
    10  	"github.com/docker/docker/integration/internal/network"
    11  	"github.com/docker/docker/testutil/daemon"
    12  	"gotest.tools/v3/poll"
    13  	"gotest.tools/v3/skip"
    14  )
    15  
    16  func TestDaemonDNSFallback(t *testing.T) {
    17  	skip.If(t, testEnv.IsRemoteDaemon, "cannot start daemon on remote test run")
    18  	skip.If(t, testEnv.DaemonInfo.OSType != "linux")
    19  	skip.If(t, IsUserNamespace())
    20  
    21  	d := daemon.New(t)
    22  	d.StartWithBusybox(t, "-b", "none", "--dns", "127.127.127.1", "--dns", "8.8.8.8")
    23  	defer d.Stop(t)
    24  
    25  	c := d.NewClientT(t)
    26  	ctx := context.Background()
    27  
    28  	network.CreateNoError(ctx, t, c, "test")
    29  	defer c.NetworkRemove(ctx, "test")
    30  
    31  	cid := container.Run(ctx, t, c, container.WithNetworkMode("test"), container.WithCmd("nslookup", "docker.com"))
    32  	defer c.ContainerRemove(ctx, cid, types.ContainerRemoveOptions{Force: true})
    33  
    34  	poll.WaitOn(t, container.IsSuccessful(ctx, c, cid), poll.WithDelay(100*time.Millisecond), poll.WithTimeout(2*time.Second))
    35  }