daemon/daemon_unix_test.go

// +build !windows

package daemon // import "github.com/docker/docker/daemon"

import (
	"errors"
	"io/ioutil"
	"os"
	"path/filepath"
	"testing"

	"github.com/docker/docker/api/types/blkiodev"
	containertypes "github.com/docker/docker/api/types/container"
	"github.com/docker/docker/container"
	"github.com/docker/docker/daemon/config"
	"golang.org/x/sys/unix"
	"gotest.tools/assert"
	is "gotest.tools/assert/cmp"
)

type fakeContainerGetter struct {
	containers map[string]*container.Container
}

func (f *fakeContainerGetter) GetContainer(cid string) (*container.Container, error) {
	container, ok := f.containers[cid]
	if !ok {
		return nil, errors.New("container not found")
	}
	return container, nil
}

// Unix test as uses settings which are not available on Windows
func TestAdjustSharedNamespaceContainerName(t *testing.T) {
	fakeID := "abcdef1234567890"
	hostConfig := &containertypes.HostConfig{
		IpcMode:     containertypes.IpcMode("container:base"),
		PidMode:     containertypes.PidMode("container:base"),
		NetworkMode: containertypes.NetworkMode("container:base"),
	}
	containerStore := &fakeContainerGetter{}
	containerStore.containers = make(map[string]*container.Container)
	containerStore.containers["base"] = &container.Container{
		ID: fakeID,
	}

	adaptSharedNamespaceContainer(containerStore, hostConfig)
	if hostConfig.IpcMode != containertypes.IpcMode("container:"+fakeID) {
		t.Errorf("Expected IpcMode to be container:%s", fakeID)
	}
	if hostConfig.PidMode != containertypes.PidMode("container:"+fakeID) {
		t.Errorf("Expected PidMode to be container:%s", fakeID)
	}
	if hostConfig.NetworkMode != containertypes.NetworkMode("container:"+fakeID) {
		t.Errorf("Expected NetworkMode to be container:%s", fakeID)
	}
}

// Unix test as uses settings which are not available on Windows
func TestAdjustCPUShares(t *testing.T) {
	tmp, err := ioutil.TempDir("", "docker-daemon-unix-test-")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(tmp)
	daemon := &Daemon{
		repository: tmp,
		root:       tmp,
	}

	hostConfig := &containertypes.HostConfig{
		Resources: containertypes.Resources{CPUShares: linuxMinCPUShares - 1},
	}
	daemon.adaptContainerSettings(hostConfig, true)
	if hostConfig.CPUShares != linuxMinCPUShares {
		t.Errorf("Expected CPUShares to be %d", linuxMinCPUShares)
	}

	hostConfig.CPUShares = linuxMaxCPUShares + 1
	daemon.adaptContainerSettings(hostConfig, true)
	if hostConfig.CPUShares != linuxMaxCPUShares {
		t.Errorf("Expected CPUShares to be %d", linuxMaxCPUShares)
	}

	hostConfig.CPUShares = 0
	daemon.adaptContainerSettings(hostConfig, true)
	if hostConfig.CPUShares != 0 {
		t.Error("Expected CPUShares to be unchanged")
	}

	hostConfig.CPUShares = 1024
	daemon.adaptContainerSettings(hostConfig, true)
	if hostConfig.CPUShares != 1024 {
		t.Error("Expected CPUShares to be unchanged")
	}
}

// Unix test as uses settings which are not available on Windows
func TestAdjustCPUSharesNoAdjustment(t *testing.T) {
	tmp, err := ioutil.TempDir("", "docker-daemon-unix-test-")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(tmp)
	daemon := &Daemon{
		repository: tmp,
		root:       tmp,
	}

	hostConfig := &containertypes.HostConfig{
		Resources: containertypes.Resources{CPUShares: linuxMinCPUShares - 1},
	}
	daemon.adaptContainerSettings(hostConfig, false)
	if hostConfig.CPUShares != linuxMinCPUShares-1 {
		t.Errorf("Expected CPUShares to be %d", linuxMinCPUShares-1)
	}

	hostConfig.CPUShares = linuxMaxCPUShares + 1
	daemon.adaptContainerSettings(hostConfig, false)
	if hostConfig.CPUShares != linuxMaxCPUShares+1 {
		t.Errorf("Expected CPUShares to be %d", linuxMaxCPUShares+1)
	}

	hostConfig.CPUShares = 0
	daemon.adaptContainerSettings(hostConfig, false)
	if hostConfig.CPUShares != 0 {
		t.Error("Expected CPUShares to be unchanged")
	}

	hostConfig.CPUShares = 1024
	daemon.adaptContainerSettings(hostConfig, false)
	if hostConfig.CPUShares != 1024 {
		t.Error("Expected CPUShares to be unchanged")
	}
}

// Unix test as uses settings which are not available on Windows
func TestParseSecurityOptWithDeprecatedColon(t *testing.T) {
	container := &container.Container{}
	config := &containertypes.HostConfig{}

	// test apparmor
	config.SecurityOpt = []string{"apparmor=test_profile"}
	if err := parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
	}
	if container.AppArmorProfile != "test_profile" {
		t.Fatalf("Unexpected AppArmorProfile, expected: \"test_profile\", got %q", container.AppArmorProfile)
	}

	// test seccomp
	sp := "/path/to/seccomp_test.json"
	config.SecurityOpt = []string{"seccomp=" + sp}
	if err := parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
	}
	if container.SeccompProfile != sp {
		t.Fatalf("Unexpected AppArmorProfile, expected: %q, got %q", sp, container.SeccompProfile)
	}

	// test valid label
	config.SecurityOpt = []string{"label=user:USER"}
	if err := parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
	}

	// test invalid label
	config.SecurityOpt = []string{"label"}
	if err := parseSecurityOpt(container, config); err == nil {
		t.Fatal("Expected parseSecurityOpt error, got nil")
	}

	// test invalid opt
	config.SecurityOpt = []string{"test"}
	if err := parseSecurityOpt(container, config); err == nil {
		t.Fatal("Expected parseSecurityOpt error, got nil")
	}
}

func TestParseSecurityOpt(t *testing.T) {
	container := &container.Container{}
	config := &containertypes.HostConfig{}

	// test apparmor
	config.SecurityOpt = []string{"apparmor=test_profile"}
	if err := parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
	}
	if container.AppArmorProfile != "test_profile" {
		t.Fatalf("Unexpected AppArmorProfile, expected: \"test_profile\", got %q", container.AppArmorProfile)
	}

	// test seccomp
	sp := "/path/to/seccomp_test.json"
	config.SecurityOpt = []string{"seccomp=" + sp}
	if err := parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
	}
	if container.SeccompProfile != sp {
		t.Fatalf("Unexpected SeccompProfile, expected: %q, got %q", sp, container.SeccompProfile)
	}

	// test valid label
	config.SecurityOpt = []string{"label=user:USER"}
	if err := parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
	}

	// test invalid label
	config.SecurityOpt = []string{"label"}
	if err := parseSecurityOpt(container, config); err == nil {
		t.Fatal("Expected parseSecurityOpt error, got nil")
	}

	// test invalid opt
	config.SecurityOpt = []string{"test"}
	if err := parseSecurityOpt(container, config); err == nil {
		t.Fatal("Expected parseSecurityOpt error, got nil")
	}
}

func TestParseNNPSecurityOptions(t *testing.T) {
	daemon := &Daemon{
		configStore: &config.Config{NoNewPrivileges: true},
	}
	container := &container.Container{}
	config := &containertypes.HostConfig{}

	// test NNP when "daemon:true" and "no-new-privileges=false""
	config.SecurityOpt = []string{"no-new-privileges=false"}

	if err := daemon.parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected daemon.parseSecurityOpt error: %v", err)
	}
	if container.NoNewPrivileges {
		t.Fatalf("container.NoNewPrivileges should be FALSE: %v", container.NoNewPrivileges)
	}

	// test NNP when "daemon:false" and "no-new-privileges=true""
	daemon.configStore.NoNewPrivileges = false
	config.SecurityOpt = []string{"no-new-privileges=true"}

	if err := daemon.parseSecurityOpt(container, config); err != nil {
		t.Fatalf("Unexpected daemon.parseSecurityOpt error: %v", err)
	}
	if !container.NoNewPrivileges {
		t.Fatalf("container.NoNewPrivileges should be TRUE: %v", container.NoNewPrivileges)
	}
}

func TestNetworkOptions(t *testing.T) {
	daemon := &Daemon{}
	dconfigCorrect := &config.Config{
		CommonConfig: config.CommonConfig{
			ClusterStore:     "consul://localhost:8500",
			ClusterAdvertise: "192.168.0.1:8000",
		},
	}

	if _, err := daemon.networkOptions(dconfigCorrect, nil, nil); err != nil {
		t.Fatalf("Expect networkOptions success, got error: %v", err)
	}

	dconfigWrong := &config.Config{
		CommonConfig: config.CommonConfig{
			ClusterStore: "consul://localhost:8500://test://bbb",
		},
	}

	if _, err := daemon.networkOptions(dconfigWrong, nil, nil); err == nil {
		t.Fatal("Expected networkOptions error, got nil")
	}
}

const (
	// prepare major 0x1FD(509 in decimal) and minor 0x130(304)
	DEVNO  = 0x11FD30
	MAJOR  = 509
	MINOR  = 304
	WEIGHT = 1024
)

func deviceTypeMock(t *testing.T, testAndCheck func(string)) {
	if os.Getuid() != 0 {
		t.Skip("root required") // for mknod
	}

	t.Parallel()

	tempDir, err := ioutil.TempDir("", "tempDevDir"+t.Name())
	assert.NilError(t, err, "create temp file")
	tempFile := filepath.Join(tempDir, "dev")

	defer os.RemoveAll(tempDir)

	if err = unix.Mknod(tempFile, unix.S_IFCHR, DEVNO); err != nil {
		t.Fatalf("mknod error %s(%x): %v", tempFile, DEVNO, err)
	}

	testAndCheck(tempFile)
}

func TestGetBlkioWeightDevices(t *testing.T) {
	deviceTypeMock(t, func(tempFile string) {
		mockResource := containertypes.Resources{
			BlkioWeightDevice: []*blkiodev.WeightDevice{{Path: tempFile, Weight: WEIGHT}},
		}

		weightDevs, err := getBlkioWeightDevices(mockResource)

		assert.NilError(t, err, "getBlkioWeightDevices")
		assert.Check(t, is.Len(weightDevs, 1), "getBlkioWeightDevices")
		assert.Check(t, weightDevs[0].Major == MAJOR, "get major device type")
		assert.Check(t, weightDevs[0].Minor == MINOR, "get minor device type")
		assert.Check(t, *weightDevs[0].Weight == WEIGHT, "get device weight")
	})
}

func TestGetBlkioThrottleDevices(t *testing.T) {
	deviceTypeMock(t, func(tempFile string) {
		mockDevs := []*blkiodev.ThrottleDevice{{Path: tempFile, Rate: WEIGHT}}

		retDevs, err := getBlkioThrottleDevices(mockDevs)

		assert.NilError(t, err, "getBlkioThrottleDevices")
		assert.Check(t, is.Len(retDevs, 1), "getBlkioThrottleDevices")
		assert.Check(t, retDevs[0].Major == MAJOR, "get major device type")
		assert.Check(t, retDevs[0].Minor == MINOR, "get minor device type")
		assert.Check(t, retDevs[0].Rate == WEIGHT, "get device rate")
	})
}