294 lines
9.7 KiB
Go
294 lines
9.7 KiB
Go
package container // import "github.com/docker/docker/integration/container"
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"io"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/docker/docker/api/types"
|
|
containertypes "github.com/docker/docker/api/types/container"
|
|
"github.com/docker/docker/api/types/versions"
|
|
"github.com/docker/docker/integration/internal/container"
|
|
net "github.com/docker/docker/integration/internal/network"
|
|
"github.com/docker/docker/pkg/stdcopy"
|
|
"github.com/docker/docker/pkg/system"
|
|
"github.com/docker/docker/testutil/daemon"
|
|
"golang.org/x/sys/unix"
|
|
"gotest.tools/v3/assert"
|
|
is "gotest.tools/v3/assert/cmp"
|
|
"gotest.tools/v3/poll"
|
|
"gotest.tools/v3/skip"
|
|
)
|
|
|
|
func TestNISDomainname(t *testing.T) {
|
|
// Older versions of the daemon would concatenate hostname and domainname,
|
|
// so hostname "foobar" and domainname "baz.cyphar.com" would produce
|
|
// `foobar.baz.cyphar.com` as hostname.
|
|
skip.If(t, versions.LessThan(testEnv.DaemonAPIVersion(), "1.40"), "skip test from new feature")
|
|
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
|
|
|
|
// Rootless supports custom Hostname but doesn't support custom Domainname
|
|
// OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused \
|
|
// "write sysctl key kernel.domainname: open /proc/sys/kernel/domainname: permission denied\"": unknown.
|
|
skip.If(t, testEnv.IsRootless, "rootless mode doesn't support setting Domainname (TODO: https://github.com/moby/moby/issues/40632)")
|
|
|
|
defer setupTest(t)()
|
|
client := testEnv.APIClient()
|
|
ctx := context.Background()
|
|
|
|
const (
|
|
hostname = "foobar"
|
|
domainname = "baz.cyphar.com"
|
|
)
|
|
|
|
cID := container.Run(ctx, t, client, func(c *container.TestContainerConfig) {
|
|
c.Config.Hostname = hostname
|
|
c.Config.Domainname = domainname
|
|
})
|
|
|
|
poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
|
|
|
|
inspect, err := client.ContainerInspect(ctx, cID)
|
|
assert.NilError(t, err)
|
|
assert.Check(t, is.Equal(hostname, inspect.Config.Hostname))
|
|
assert.Check(t, is.Equal(domainname, inspect.Config.Domainname))
|
|
|
|
// Check hostname.
|
|
res, err := container.Exec(ctx, client, cID,
|
|
[]string{"cat", "/proc/sys/kernel/hostname"})
|
|
assert.NilError(t, err)
|
|
assert.Assert(t, is.Len(res.Stderr(), 0))
|
|
assert.Equal(t, 0, res.ExitCode)
|
|
assert.Check(t, is.Equal(hostname, strings.TrimSpace(res.Stdout())))
|
|
|
|
// Check domainname.
|
|
res, err = container.Exec(ctx, client, cID,
|
|
[]string{"cat", "/proc/sys/kernel/domainname"})
|
|
assert.NilError(t, err)
|
|
assert.Assert(t, is.Len(res.Stderr(), 0))
|
|
assert.Equal(t, 0, res.ExitCode)
|
|
assert.Check(t, is.Equal(domainname, strings.TrimSpace(res.Stdout())))
|
|
}
|
|
|
|
func TestHostnameDnsResolution(t *testing.T) {
|
|
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
|
|
|
|
defer setupTest(t)()
|
|
client := testEnv.APIClient()
|
|
ctx := context.Background()
|
|
|
|
const (
|
|
hostname = "foobar"
|
|
)
|
|
|
|
// using user defined network as we want to use internal DNS
|
|
netName := "foobar-net"
|
|
net.CreateNoError(context.Background(), t, client, netName, net.WithDriver("bridge"))
|
|
|
|
cID := container.Run(ctx, t, client, func(c *container.TestContainerConfig) {
|
|
c.Config.Hostname = hostname
|
|
c.HostConfig.NetworkMode = containertypes.NetworkMode(netName)
|
|
})
|
|
|
|
poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
|
|
|
|
inspect, err := client.ContainerInspect(ctx, cID)
|
|
assert.NilError(t, err)
|
|
assert.Check(t, is.Equal(hostname, inspect.Config.Hostname))
|
|
|
|
// Clear hosts file so ping will use DNS for hostname resolution
|
|
res, err := container.Exec(ctx, client, cID,
|
|
[]string{"sh", "-c", "echo 127.0.0.1 localhost | tee /etc/hosts && ping -c 1 foobar"})
|
|
assert.NilError(t, err)
|
|
assert.Check(t, is.Equal("", res.Stderr()))
|
|
assert.Equal(t, 0, res.ExitCode)
|
|
}
|
|
|
|
func TestUnprivilegedPortsAndPing(t *testing.T) {
|
|
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
|
|
skip.If(t, testEnv.IsRootless, "rootless mode doesn't support setting net.ipv4.ping_group_range and net.ipv4.ip_unprivileged_port_start")
|
|
|
|
defer setupTest(t)()
|
|
client := testEnv.APIClient()
|
|
ctx := context.Background()
|
|
|
|
cID := container.Run(ctx, t, client, func(c *container.TestContainerConfig) {
|
|
c.Config.User = "1000:1000"
|
|
})
|
|
|
|
poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
|
|
|
|
// Check net.ipv4.ping_group_range.
|
|
res, err := container.Exec(ctx, client, cID, []string{"cat", "/proc/sys/net/ipv4/ping_group_range"})
|
|
assert.NilError(t, err)
|
|
assert.Assert(t, is.Len(res.Stderr(), 0))
|
|
assert.Equal(t, 0, res.ExitCode)
|
|
assert.Equal(t, `0 2147483647`, strings.TrimSpace(res.Stdout()))
|
|
|
|
// Check net.ipv4.ip_unprivileged_port_start.
|
|
res, err = container.Exec(ctx, client, cID, []string{"cat", "/proc/sys/net/ipv4/ip_unprivileged_port_start"})
|
|
assert.NilError(t, err)
|
|
assert.Assert(t, is.Len(res.Stderr(), 0))
|
|
assert.Equal(t, 0, res.ExitCode)
|
|
assert.Equal(t, "0", strings.TrimSpace(res.Stdout()))
|
|
}
|
|
|
|
func TestPrivilegedHostDevices(t *testing.T) {
|
|
// Host devices are linux only. Also it creates host devices,
|
|
// so needs to be same host.
|
|
skip.If(t, testEnv.IsRemoteDaemon)
|
|
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
|
|
|
|
defer setupTest(t)()
|
|
client := testEnv.APIClient()
|
|
ctx := context.Background()
|
|
|
|
const (
|
|
devTest = "/dev/test"
|
|
devRootOnlyTest = "/dev/root-only/test"
|
|
)
|
|
|
|
// Create Null devices.
|
|
if err := system.Mknod(devTest, unix.S_IFCHR|0600, int(system.Mkdev(1, 3))); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.Remove(devTest)
|
|
if err := os.Mkdir(filepath.Dir(devRootOnlyTest), 0700); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(filepath.Dir(devRootOnlyTest))
|
|
if err := system.Mknod(devRootOnlyTest, unix.S_IFCHR|0600, int(system.Mkdev(1, 3))); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.Remove(devRootOnlyTest)
|
|
|
|
cID := container.Run(ctx, t, client, container.WithPrivileged(true))
|
|
|
|
poll.WaitOn(t, container.IsInState(ctx, client, cID, "running"), poll.WithDelay(100*time.Millisecond))
|
|
|
|
// Check test device.
|
|
res, err := container.Exec(ctx, client, cID, []string{"ls", devTest})
|
|
assert.NilError(t, err)
|
|
assert.Equal(t, 0, res.ExitCode)
|
|
assert.Check(t, is.Equal(strings.TrimSpace(res.Stdout()), devTest))
|
|
|
|
// Check root-only test device.
|
|
res, err = container.Exec(ctx, client, cID, []string{"ls", devRootOnlyTest})
|
|
assert.NilError(t, err)
|
|
if testEnv.IsRootless() {
|
|
assert.Equal(t, 1, res.ExitCode)
|
|
assert.Check(t, is.Contains(res.Stderr(), "No such file or directory"))
|
|
} else {
|
|
assert.Equal(t, 0, res.ExitCode)
|
|
assert.Check(t, is.Equal(strings.TrimSpace(res.Stdout()), devRootOnlyTest))
|
|
}
|
|
}
|
|
|
|
func TestRunConsoleSize(t *testing.T) {
|
|
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
|
|
skip.If(t, versions.LessThan(testEnv.DaemonAPIVersion(), "1.42"), "skip test from new feature")
|
|
|
|
defer setupTest(t)()
|
|
client := testEnv.APIClient()
|
|
ctx := context.Background()
|
|
|
|
cID := container.Run(ctx, t, client,
|
|
container.WithTty(true),
|
|
container.WithImage("busybox"),
|
|
container.WithCmd("stty", "size"),
|
|
container.WithConsoleSize(57, 123),
|
|
)
|
|
|
|
poll.WaitOn(t, container.IsStopped(ctx, client, cID), poll.WithDelay(100*time.Millisecond))
|
|
|
|
out, err := client.ContainerLogs(ctx, cID, types.ContainerLogsOptions{ShowStdout: true})
|
|
assert.NilError(t, err)
|
|
defer out.Close()
|
|
|
|
var b bytes.Buffer
|
|
_, err = io.Copy(&b, out)
|
|
assert.NilError(t, err)
|
|
|
|
assert.Equal(t, strings.TrimSpace(b.String()), "123 57")
|
|
}
|
|
|
|
func TestRunWithAlternativeContainerdShim(t *testing.T) {
|
|
skip.If(t, testEnv.IsRemoteDaemon)
|
|
skip.If(t, testEnv.DaemonInfo.OSType != "linux")
|
|
|
|
realShimPath, err := exec.LookPath("containerd-shim-runc-v2")
|
|
assert.Assert(t, err)
|
|
realShimPath, err = filepath.Abs(realShimPath)
|
|
assert.Assert(t, err)
|
|
|
|
// t.TempDir() can't be used here as the temporary directory returned by
|
|
// that function cannot be accessed by the fake-root user for rootless
|
|
// Docker. It creates a nested hierarchy of directories where the
|
|
// outermost has permission 0700.
|
|
shimDir, err := os.MkdirTemp("", t.Name())
|
|
assert.Assert(t, err)
|
|
t.Cleanup(func() {
|
|
if err := os.RemoveAll(shimDir); err != nil {
|
|
t.Errorf("shimDir RemoveAll cleanup: %v", err)
|
|
}
|
|
})
|
|
assert.Assert(t, os.Chmod(shimDir, 0777))
|
|
shimDir, err = filepath.Abs(shimDir)
|
|
assert.Assert(t, err)
|
|
assert.Assert(t, os.Symlink(realShimPath, filepath.Join(shimDir, "containerd-shim-realfake-v42")))
|
|
|
|
d := daemon.New(t,
|
|
daemon.WithEnvVars("PATH="+shimDir+":"+os.Getenv("PATH")),
|
|
daemon.WithContainerdSocket(""), // A new containerd instance needs to be started which inherits the PATH env var defined above.
|
|
)
|
|
d.StartWithBusybox(t)
|
|
defer d.Stop(t)
|
|
|
|
client := d.NewClientT(t)
|
|
ctx := context.Background()
|
|
|
|
cID := container.Run(ctx, t, client,
|
|
container.WithImage("busybox"),
|
|
container.WithCmd("sh", "-c", `echo 'Hello, world!'`),
|
|
container.WithRuntime("io.containerd.realfake.v42"),
|
|
)
|
|
|
|
poll.WaitOn(t, container.IsStopped(ctx, client, cID), poll.WithDelay(100*time.Millisecond))
|
|
|
|
out, err := client.ContainerLogs(ctx, cID, types.ContainerLogsOptions{ShowStdout: true})
|
|
assert.NilError(t, err)
|
|
defer out.Close()
|
|
|
|
var b bytes.Buffer
|
|
_, err = stdcopy.StdCopy(&b, io.Discard, out)
|
|
assert.NilError(t, err)
|
|
|
|
assert.Equal(t, strings.TrimSpace(b.String()), "Hello, world!")
|
|
|
|
d.Stop(t)
|
|
d.Start(t, "--default-runtime="+"io.containerd.realfake.v42")
|
|
|
|
cID = container.Run(ctx, t, client,
|
|
container.WithImage("busybox"),
|
|
container.WithCmd("sh", "-c", `echo 'Hello, world!'`),
|
|
)
|
|
|
|
poll.WaitOn(t, container.IsStopped(ctx, client, cID), poll.WithDelay(100*time.Millisecond))
|
|
|
|
out, err = client.ContainerLogs(ctx, cID, types.ContainerLogsOptions{ShowStdout: true})
|
|
assert.NilError(t, err)
|
|
defer out.Close()
|
|
|
|
b.Reset()
|
|
_, err = stdcopy.StdCopy(&b, io.Discard, out)
|
|
assert.NilError(t, err)
|
|
|
|
assert.Equal(t, strings.TrimSpace(b.String()), "Hello, world!")
|
|
}
|