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f053beb34c
Commit 3ec19ff62b introduced a GC goroutine to delete files where netns were mounted. It was primarly added to work around a race in kernel 3.18-4.0.1. Since no distros we support are using such old kernels, there's no need to keep this code around. Signed-off-by: Albin Kerouanton <albinker@gmail.com>
74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
//go:build !windows
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package libnetwork
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import (
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"context"
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"os"
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"testing"
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"github.com/docker/docker/internal/testutils/netnsutils"
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"github.com/docker/docker/libnetwork/ipams/defaultipam"
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)
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func TestHostsEntries(t *testing.T) {
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defer netnsutils.SetupTestOSContext(t)()
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expectedHostsFile := `127.0.0.1 localhost
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::1 localhost ip6-localhost ip6-loopback
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fe00:: ip6-localnet
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ff00:: ip6-mcastprefix
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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192.168.222.2 somehost.example.com somehost
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fe90::2 somehost.example.com somehost
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`
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opts := []NetworkOption{
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NetworkOptionEnableIPv4(true),
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NetworkOptionEnableIPv6(true),
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NetworkOptionIpam(defaultipam.DriverName, "",
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[]*IpamConf{{PreferredPool: "192.168.222.0/24", Gateway: "192.168.222.1"}},
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[]*IpamConf{{PreferredPool: "fe90::/64", Gateway: "fe90::1"}}, nil),
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}
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ctrlr, nws := getTestEnv(t, opts)
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hostsFile, err := os.CreateTemp("", "")
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if err != nil {
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t.Fatal(err)
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}
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defer os.Remove(hostsFile.Name())
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sbx, err := ctrlr.NewSandbox(context.Background(), "sandbox1", OptionHostsPath(hostsFile.Name()), OptionHostname("somehost.example.com"))
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if err != nil {
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t.Fatal(err)
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}
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ep1, err := nws[0].CreateEndpoint(context.Background(), "ep1")
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if err != nil {
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t.Fatal(err)
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}
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if err := ep1.Join(context.Background(), sbx, JoinOptionPriority(1)); err != nil {
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t.Fatal(err)
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}
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data, err := os.ReadFile(hostsFile.Name())
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if err != nil {
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t.Fatal(err)
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}
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if string(data) != expectedHostsFile {
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t.Fatalf("expected the hosts file to read:\n%q\nbut instead got the following:\n%q\n", expectedHostsFile, string(data))
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}
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if err := sbx.Delete(context.Background()); err != nil {
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t.Fatal(err)
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}
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if len(ctrlr.sandboxes) != 0 {
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t.Fatalf("controller sandboxes is not empty. len = %d", len(ctrlr.sandboxes))
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}
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}
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