439 lines
13 KiB
Go
439 lines
13 KiB
Go
// +build !windows
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package daemon // import "github.com/docker/docker/daemon"
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import (
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"errors"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"github.com/docker/docker/api/types/blkiodev"
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containertypes "github.com/docker/docker/api/types/container"
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"github.com/docker/docker/container"
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"github.com/docker/docker/daemon/config"
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"github.com/docker/docker/pkg/sysinfo"
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"golang.org/x/sys/unix"
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"gotest.tools/assert"
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is "gotest.tools/assert/cmp"
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)
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type fakeContainerGetter struct {
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containers map[string]*container.Container
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}
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func (f *fakeContainerGetter) GetContainer(cid string) (*container.Container, error) {
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container, ok := f.containers[cid]
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if !ok {
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return nil, errors.New("container not found")
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}
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return container, nil
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}
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// Unix test as uses settings which are not available on Windows
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func TestAdjustSharedNamespaceContainerName(t *testing.T) {
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fakeID := "abcdef1234567890"
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hostConfig := &containertypes.HostConfig{
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IpcMode: containertypes.IpcMode("container:base"),
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PidMode: containertypes.PidMode("container:base"),
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NetworkMode: containertypes.NetworkMode("container:base"),
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}
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containerStore := &fakeContainerGetter{}
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containerStore.containers = make(map[string]*container.Container)
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containerStore.containers["base"] = &container.Container{
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ID: fakeID,
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}
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adaptSharedNamespaceContainer(containerStore, hostConfig)
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if hostConfig.IpcMode != containertypes.IpcMode("container:"+fakeID) {
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t.Errorf("Expected IpcMode to be container:%s", fakeID)
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}
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if hostConfig.PidMode != containertypes.PidMode("container:"+fakeID) {
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t.Errorf("Expected PidMode to be container:%s", fakeID)
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}
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if hostConfig.NetworkMode != containertypes.NetworkMode("container:"+fakeID) {
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t.Errorf("Expected NetworkMode to be container:%s", fakeID)
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}
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}
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// Unix test as uses settings which are not available on Windows
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func TestAdjustCPUShares(t *testing.T) {
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tmp, err := ioutil.TempDir("", "docker-daemon-unix-test-")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmp)
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daemon := &Daemon{
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repository: tmp,
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root: tmp,
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}
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hostConfig := &containertypes.HostConfig{
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Resources: containertypes.Resources{CPUShares: linuxMinCPUShares - 1},
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}
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daemon.adaptContainerSettings(hostConfig, true)
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if hostConfig.CPUShares != linuxMinCPUShares {
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t.Errorf("Expected CPUShares to be %d", linuxMinCPUShares)
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}
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hostConfig.CPUShares = linuxMaxCPUShares + 1
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daemon.adaptContainerSettings(hostConfig, true)
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if hostConfig.CPUShares != linuxMaxCPUShares {
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t.Errorf("Expected CPUShares to be %d", linuxMaxCPUShares)
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}
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hostConfig.CPUShares = 0
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daemon.adaptContainerSettings(hostConfig, true)
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if hostConfig.CPUShares != 0 {
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t.Error("Expected CPUShares to be unchanged")
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}
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hostConfig.CPUShares = 1024
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daemon.adaptContainerSettings(hostConfig, true)
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if hostConfig.CPUShares != 1024 {
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t.Error("Expected CPUShares to be unchanged")
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}
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}
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// Unix test as uses settings which are not available on Windows
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func TestAdjustCPUSharesNoAdjustment(t *testing.T) {
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tmp, err := ioutil.TempDir("", "docker-daemon-unix-test-")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmp)
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daemon := &Daemon{
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repository: tmp,
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root: tmp,
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}
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hostConfig := &containertypes.HostConfig{
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Resources: containertypes.Resources{CPUShares: linuxMinCPUShares - 1},
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}
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daemon.adaptContainerSettings(hostConfig, false)
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if hostConfig.CPUShares != linuxMinCPUShares-1 {
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t.Errorf("Expected CPUShares to be %d", linuxMinCPUShares-1)
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}
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hostConfig.CPUShares = linuxMaxCPUShares + 1
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daemon.adaptContainerSettings(hostConfig, false)
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if hostConfig.CPUShares != linuxMaxCPUShares+1 {
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t.Errorf("Expected CPUShares to be %d", linuxMaxCPUShares+1)
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}
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hostConfig.CPUShares = 0
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daemon.adaptContainerSettings(hostConfig, false)
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if hostConfig.CPUShares != 0 {
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t.Error("Expected CPUShares to be unchanged")
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}
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hostConfig.CPUShares = 1024
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daemon.adaptContainerSettings(hostConfig, false)
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if hostConfig.CPUShares != 1024 {
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t.Error("Expected CPUShares to be unchanged")
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}
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}
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// Unix test as uses settings which are not available on Windows
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func TestParseSecurityOptWithDeprecatedColon(t *testing.T) {
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container := &container.Container{}
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config := &containertypes.HostConfig{}
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// test apparmor
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config.SecurityOpt = []string{"apparmor=test_profile"}
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if err := parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
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}
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if container.AppArmorProfile != "test_profile" {
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t.Fatalf("Unexpected AppArmorProfile, expected: \"test_profile\", got %q", container.AppArmorProfile)
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}
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// test seccomp
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sp := "/path/to/seccomp_test.json"
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config.SecurityOpt = []string{"seccomp=" + sp}
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if err := parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
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}
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if container.SeccompProfile != sp {
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t.Fatalf("Unexpected AppArmorProfile, expected: %q, got %q", sp, container.SeccompProfile)
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}
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// test valid label
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config.SecurityOpt = []string{"label=user:USER"}
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if err := parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
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}
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// test invalid label
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config.SecurityOpt = []string{"label"}
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if err := parseSecurityOpt(container, config); err == nil {
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t.Fatal("Expected parseSecurityOpt error, got nil")
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}
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// test invalid opt
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config.SecurityOpt = []string{"test"}
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if err := parseSecurityOpt(container, config); err == nil {
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t.Fatal("Expected parseSecurityOpt error, got nil")
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}
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}
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func TestParseSecurityOpt(t *testing.T) {
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container := &container.Container{}
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config := &containertypes.HostConfig{}
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// test apparmor
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config.SecurityOpt = []string{"apparmor=test_profile"}
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if err := parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
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}
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if container.AppArmorProfile != "test_profile" {
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t.Fatalf("Unexpected AppArmorProfile, expected: \"test_profile\", got %q", container.AppArmorProfile)
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}
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// test seccomp
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sp := "/path/to/seccomp_test.json"
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config.SecurityOpt = []string{"seccomp=" + sp}
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if err := parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
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}
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if container.SeccompProfile != sp {
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t.Fatalf("Unexpected SeccompProfile, expected: %q, got %q", sp, container.SeccompProfile)
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}
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// test valid label
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config.SecurityOpt = []string{"label=user:USER"}
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if err := parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected parseSecurityOpt error: %v", err)
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}
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// test invalid label
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config.SecurityOpt = []string{"label"}
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if err := parseSecurityOpt(container, config); err == nil {
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t.Fatal("Expected parseSecurityOpt error, got nil")
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}
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// test invalid opt
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config.SecurityOpt = []string{"test"}
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if err := parseSecurityOpt(container, config); err == nil {
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t.Fatal("Expected parseSecurityOpt error, got nil")
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}
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}
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func TestParseNNPSecurityOptions(t *testing.T) {
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daemon := &Daemon{
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configStore: &config.Config{NoNewPrivileges: true},
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}
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container := &container.Container{}
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config := &containertypes.HostConfig{}
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// test NNP when "daemon:true" and "no-new-privileges=false""
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config.SecurityOpt = []string{"no-new-privileges=false"}
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if err := daemon.parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected daemon.parseSecurityOpt error: %v", err)
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}
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if container.NoNewPrivileges {
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t.Fatalf("container.NoNewPrivileges should be FALSE: %v", container.NoNewPrivileges)
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}
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// test NNP when "daemon:false" and "no-new-privileges=true""
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daemon.configStore.NoNewPrivileges = false
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config.SecurityOpt = []string{"no-new-privileges=true"}
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if err := daemon.parseSecurityOpt(container, config); err != nil {
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t.Fatalf("Unexpected daemon.parseSecurityOpt error: %v", err)
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}
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if !container.NoNewPrivileges {
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t.Fatalf("container.NoNewPrivileges should be TRUE: %v", container.NoNewPrivileges)
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}
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}
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func TestNetworkOptions(t *testing.T) {
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daemon := &Daemon{}
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dconfigCorrect := &config.Config{
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CommonConfig: config.CommonConfig{
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ClusterStore: "consul://localhost:8500",
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ClusterAdvertise: "192.168.0.1:8000",
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},
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}
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if _, err := daemon.networkOptions(dconfigCorrect, nil, nil); err != nil {
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t.Fatalf("Expect networkOptions success, got error: %v", err)
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}
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dconfigWrong := &config.Config{
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CommonConfig: config.CommonConfig{
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ClusterStore: "consul://localhost:8500://test://bbb",
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},
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}
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if _, err := daemon.networkOptions(dconfigWrong, nil, nil); err == nil {
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t.Fatal("Expected networkOptions error, got nil")
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}
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}
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func TestVerifyPlatformContainerResources(t *testing.T) {
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t.Parallel()
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var (
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no = false
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yes = true
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)
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withMemoryLimit := func(si *sysinfo.SysInfo) {
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si.MemoryLimit = true
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}
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withSwapLimit := func(si *sysinfo.SysInfo) {
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si.SwapLimit = true
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}
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withOomKillDisable := func(si *sysinfo.SysInfo) {
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si.OomKillDisable = true
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}
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tests := []struct {
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name string
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resources containertypes.Resources
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sysInfo sysinfo.SysInfo
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update bool
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expectedWarnings []string
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}{
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{
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name: "no-oom-kill-disable",
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resources: containertypes.Resources{},
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sysInfo: sysInfo(t, withMemoryLimit),
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expectedWarnings: []string{},
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},
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{
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name: "oom-kill-disable-disabled",
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resources: containertypes.Resources{
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OomKillDisable: &no,
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},
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sysInfo: sysInfo(t, withMemoryLimit),
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expectedWarnings: []string{},
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},
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{
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name: "oom-kill-disable-not-supported",
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resources: containertypes.Resources{
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OomKillDisable: &yes,
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},
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sysInfo: sysInfo(t, withMemoryLimit),
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expectedWarnings: []string{
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"Your kernel does not support OomKillDisable. OomKillDisable discarded.",
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},
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},
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{
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name: "oom-kill-disable-without-memory-constraints",
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resources: containertypes.Resources{
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OomKillDisable: &yes,
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Memory: 0,
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},
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sysInfo: sysInfo(t, withMemoryLimit, withOomKillDisable, withSwapLimit),
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expectedWarnings: []string{
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"OOM killer is disabled for the container, but no memory limit is set, this can result in the system running out of resources.",
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},
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},
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{
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name: "oom-kill-disable-with-memory-constraints-but-no-memory-limit-support",
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resources: containertypes.Resources{
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OomKillDisable: &yes,
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Memory: linuxMinMemory,
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},
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sysInfo: sysInfo(t, withOomKillDisable),
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expectedWarnings: []string{
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"Your kernel does not support memory limit capabilities or the cgroup is not mounted. Limitation discarded.",
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"OOM killer is disabled for the container, but no memory limit is set, this can result in the system running out of resources.",
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},
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},
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{
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name: "oom-kill-disable-with-memory-constraints",
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resources: containertypes.Resources{
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OomKillDisable: &yes,
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Memory: linuxMinMemory,
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},
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sysInfo: sysInfo(t, withMemoryLimit, withOomKillDisable, withSwapLimit),
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expectedWarnings: []string{},
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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warnings, err := verifyPlatformContainerResources(&tc.resources, &tc.sysInfo, tc.update)
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assert.NilError(t, err)
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for _, w := range tc.expectedWarnings {
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assert.Assert(t, is.Contains(warnings, w))
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}
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})
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}
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}
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func sysInfo(t *testing.T, opts ...func(*sysinfo.SysInfo)) sysinfo.SysInfo {
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t.Helper()
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si := sysinfo.SysInfo{}
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for _, opt := range opts {
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opt(&si)
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}
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if si.OomKillDisable {
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t.Log(t.Name(), "OOM disable supported")
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}
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return si
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}
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const (
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// prepare major 0x1FD(509 in decimal) and minor 0x130(304)
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DEVNO = 0x11FD30
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MAJOR = 509
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MINOR = 304
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WEIGHT = 1024
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)
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func deviceTypeMock(t *testing.T, testAndCheck func(string)) {
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if os.Getuid() != 0 {
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t.Skip("root required") // for mknod
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}
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t.Parallel()
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tempDir, err := ioutil.TempDir("", "tempDevDir"+t.Name())
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assert.NilError(t, err, "create temp file")
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tempFile := filepath.Join(tempDir, "dev")
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defer os.RemoveAll(tempDir)
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if err = unix.Mknod(tempFile, unix.S_IFCHR, DEVNO); err != nil {
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t.Fatalf("mknod error %s(%x): %v", tempFile, DEVNO, err)
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}
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testAndCheck(tempFile)
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}
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func TestGetBlkioWeightDevices(t *testing.T) {
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deviceTypeMock(t, func(tempFile string) {
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mockResource := containertypes.Resources{
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BlkioWeightDevice: []*blkiodev.WeightDevice{{Path: tempFile, Weight: WEIGHT}},
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}
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weightDevs, err := getBlkioWeightDevices(mockResource)
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assert.NilError(t, err, "getBlkioWeightDevices")
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assert.Check(t, is.Len(weightDevs, 1), "getBlkioWeightDevices")
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assert.Check(t, weightDevs[0].Major == MAJOR, "get major device type")
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assert.Check(t, weightDevs[0].Minor == MINOR, "get minor device type")
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assert.Check(t, *weightDevs[0].Weight == WEIGHT, "get device weight")
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})
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}
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func TestGetBlkioThrottleDevices(t *testing.T) {
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deviceTypeMock(t, func(tempFile string) {
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mockDevs := []*blkiodev.ThrottleDevice{{Path: tempFile, Rate: WEIGHT}}
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retDevs, err := getBlkioThrottleDevices(mockDevs)
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assert.NilError(t, err, "getBlkioThrottleDevices")
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assert.Check(t, is.Len(retDevs, 1), "getBlkioThrottleDevices")
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assert.Check(t, retDevs[0].Major == MAJOR, "get major device type")
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assert.Check(t, retDevs[0].Minor == MINOR, "get minor device type")
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assert.Check(t, retDevs[0].Rate == WEIGHT, "get device rate")
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})
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}
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