mirror of
https://github.com/moby/moby.git
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313 lines
10 KiB
Go
313 lines
10 KiB
Go
package daemon
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"gotest.tools/v3/fs"
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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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swarmagent "github.com/docker/swarmkit/agent"
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swarmapi "github.com/docker/swarmkit/api"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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"golang.org/x/sys/windows/registry"
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"gotest.tools/v3/assert"
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)
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func TestSetWindowsCredentialSpecInSpec(t *testing.T) {
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// we need a temp directory to act as the daemon's root
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tmpDaemonRoot := fs.NewDir(t, t.Name()).Path()
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defer func() {
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assert.NilError(t, os.RemoveAll(tmpDaemonRoot))
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}()
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daemon := &Daemon{
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root: tmpDaemonRoot,
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}
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t.Run("it does nothing if there are no security options", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(&container.Container{}, spec)
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assert.NilError(t, err)
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assert.Check(t, spec.Windows == nil)
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err = daemon.setWindowsCredentialSpec(&container.Container{HostConfig: &containertypes.HostConfig{}}, spec)
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assert.NilError(t, err)
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assert.Check(t, spec.Windows == nil)
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err = daemon.setWindowsCredentialSpec(&container.Container{HostConfig: &containertypes.HostConfig{SecurityOpt: []string{}}}, spec)
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assert.NilError(t, err)
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assert.Check(t, spec.Windows == nil)
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})
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dummyContainerID := "dummy-container-ID"
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containerFactory := func(secOpt string) *container.Container {
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if !strings.Contains(secOpt, "=") {
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secOpt = "credentialspec=" + secOpt
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}
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return &container.Container{
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ID: dummyContainerID,
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HostConfig: &containertypes.HostConfig{
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SecurityOpt: []string{secOpt},
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},
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}
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}
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credSpecsDir := filepath.Join(tmpDaemonRoot, credentialSpecFileLocation)
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dummyCredFileContents := `{"We don't need no": "education"}`
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t.Run("happy path with a 'file://' option", func(t *testing.T) {
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spec := &specs.Spec{}
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// let's render a dummy cred file
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err := os.Mkdir(credSpecsDir, os.ModePerm)
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assert.NilError(t, err)
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dummyCredFileName := "dummy-cred-spec.json"
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dummyCredFilePath := filepath.Join(credSpecsDir, dummyCredFileName)
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err = os.WriteFile(dummyCredFilePath, []byte(dummyCredFileContents), 0644)
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defer func() {
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assert.NilError(t, os.Remove(dummyCredFilePath))
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}()
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assert.NilError(t, err)
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err = daemon.setWindowsCredentialSpec(containerFactory("file://"+dummyCredFileName), spec)
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assert.NilError(t, err)
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if assert.Check(t, spec.Windows != nil) {
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assert.Equal(t, dummyCredFileContents, spec.Windows.CredentialSpec)
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}
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})
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t.Run("it's not allowed to use a 'file://' option with an absolute path", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory(`file://C:\path\to\my\credspec.json`), spec)
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assert.ErrorContains(t, err, "invalid credential spec - file:// path cannot be absolute")
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assert.Check(t, spec.Windows == nil)
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})
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t.Run("it's not allowed to use a 'file://' option breaking out of the cred specs' directory", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory(`file://..\credspec.json`), spec)
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assert.ErrorContains(t, err, fmt.Sprintf("invalid credential spec - file:// path must be under %s", credSpecsDir))
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assert.Check(t, spec.Windows == nil)
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})
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t.Run("when using a 'file://' option pointing to a file that doesn't exist, it fails gracefully", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("file://i-dont-exist.json"), spec)
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assert.ErrorContains(t, err, fmt.Sprintf("credential spec for container %s could not be read from file", dummyContainerID))
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assert.ErrorContains(t, err, "The system cannot find")
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assert.Check(t, spec.Windows == nil)
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})
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t.Run("happy path with a 'registry://' option", func(t *testing.T) {
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valueName := "my-cred-spec"
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key := &dummyRegistryKey{
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getStringValueFunc: func(name string) (val string, valtype uint32, err error) {
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assert.Equal(t, valueName, name)
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return dummyCredFileContents, 0, nil
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},
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}
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defer setRegistryOpenKeyFunc(t, key)()
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spec := &specs.Spec{}
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assert.NilError(t, daemon.setWindowsCredentialSpec(containerFactory("registry://"+valueName), spec))
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if assert.Check(t, spec.Windows != nil) {
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assert.Equal(t, dummyCredFileContents, spec.Windows.CredentialSpec)
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}
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assert.Check(t, key.closed)
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})
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t.Run("when using a 'registry://' option and opening the registry key fails, it fails gracefully", func(t *testing.T) {
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dummyError := fmt.Errorf("dummy error")
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defer setRegistryOpenKeyFunc(t, &dummyRegistryKey{}, dummyError)()
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("registry://my-cred-spec"), spec)
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assert.ErrorContains(t, err, fmt.Sprintf("registry key %s could not be opened: %v", credentialSpecRegistryLocation, dummyError))
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assert.Check(t, spec.Windows == nil)
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})
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t.Run("when using a 'registry://' option pointing to a value that doesn't exist, it fails gracefully", func(t *testing.T) {
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valueName := "my-cred-spec"
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key := &dummyRegistryKey{
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getStringValueFunc: func(name string) (val string, valtype uint32, err error) {
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assert.Equal(t, valueName, name)
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return "", 0, registry.ErrNotExist
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},
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}
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defer setRegistryOpenKeyFunc(t, key)()
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("registry://"+valueName), spec)
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assert.ErrorContains(t, err, fmt.Sprintf("registry credential spec %q for container %s was not found", valueName, dummyContainerID))
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assert.Check(t, key.closed)
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})
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t.Run("when using a 'registry://' option and reading the registry value fails, it fails gracefully", func(t *testing.T) {
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dummyError := fmt.Errorf("dummy error")
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valueName := "my-cred-spec"
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key := &dummyRegistryKey{
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getStringValueFunc: func(name string) (val string, valtype uint32, err error) {
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assert.Equal(t, valueName, name)
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return "", 0, dummyError
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},
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}
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defer setRegistryOpenKeyFunc(t, key)()
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("registry://"+valueName), spec)
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assert.ErrorContains(t, err, fmt.Sprintf("error reading credential spec %q from registry for container %s: %v", valueName, dummyContainerID, dummyError))
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assert.Check(t, key.closed)
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})
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t.Run("happy path with a 'config://' option", func(t *testing.T) {
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configID := "my-cred-spec"
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dependencyManager := swarmagent.NewDependencyManager(nil)
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dependencyManager.Configs().Add(swarmapi.Config{
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ID: configID,
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Spec: swarmapi.ConfigSpec{
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Data: []byte(dummyCredFileContents),
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},
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})
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task := &swarmapi.Task{
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Spec: swarmapi.TaskSpec{
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Runtime: &swarmapi.TaskSpec_Container{
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Container: &swarmapi.ContainerSpec{
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Configs: []*swarmapi.ConfigReference{
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{
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ConfigID: configID,
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},
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},
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},
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},
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},
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}
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cntr := containerFactory("config://" + configID)
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cntr.DependencyStore = swarmagent.Restrict(dependencyManager, task)
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(cntr, spec)
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assert.NilError(t, err)
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if assert.Check(t, spec.Windows != nil) {
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assert.Equal(t, dummyCredFileContents, spec.Windows.CredentialSpec)
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}
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})
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t.Run("using a 'config://' option on a container not managed by swarmkit is not allowed, and results in a generic error message to hide that purely internal API", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("config://whatever"), spec)
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assert.Equal(t, errInvalidCredentialSpecSecOpt, err)
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assert.Check(t, spec.Windows == nil)
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})
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t.Run("happy path with a 'raw://' option", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("raw://"+dummyCredFileContents), spec)
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assert.NilError(t, err)
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if assert.Check(t, spec.Windows != nil) {
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assert.Equal(t, dummyCredFileContents, spec.Windows.CredentialSpec)
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}
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})
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t.Run("it's not case sensitive in the option names", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("CreDENtiaLSPeC=rAw://"+dummyCredFileContents), spec)
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assert.NilError(t, err)
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if assert.Check(t, spec.Windows != nil) {
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assert.Equal(t, dummyCredFileContents, spec.Windows.CredentialSpec)
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}
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})
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t.Run("it rejects unknown options", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("credentialspe=config://whatever"), spec)
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assert.ErrorContains(t, err, "security option not supported: credentialspe")
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assert.Check(t, spec.Windows == nil)
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})
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t.Run("it rejects unsupported credentialspec options", func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory("idontexist://whatever"), spec)
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assert.Equal(t, errInvalidCredentialSpecSecOpt, err)
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assert.Check(t, spec.Windows == nil)
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})
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for _, option := range []string{"file", "registry", "config", "raw"} {
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t.Run(fmt.Sprintf("it rejects empty values for %s", option), func(t *testing.T) {
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spec := &specs.Spec{}
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err := daemon.setWindowsCredentialSpec(containerFactory(option+"://"), spec)
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assert.Equal(t, errInvalidCredentialSpecSecOpt, err)
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assert.Check(t, spec.Windows == nil)
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})
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}
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}
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/* Helpers below */
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type dummyRegistryKey struct {
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getStringValueFunc func(name string) (val string, valtype uint32, err error)
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closed bool
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}
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func (k *dummyRegistryKey) GetStringValue(name string) (val string, valtype uint32, err error) {
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return k.getStringValueFunc(name)
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}
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func (k *dummyRegistryKey) Close() error {
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k.closed = true
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return nil
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}
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// setRegistryOpenKeyFunc replaces the registryOpenKeyFunc package variable, and returns a function
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// to be called to revert the change when done with testing.
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func setRegistryOpenKeyFunc(t *testing.T, key *dummyRegistryKey, err ...error) func() {
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previousRegistryOpenKeyFunc := registryOpenKeyFunc
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registryOpenKeyFunc = func(baseKey registry.Key, path string, access uint32) (registryKey, error) {
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// this should always be called with exactly the same arguments
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assert.Equal(t, registry.LOCAL_MACHINE, baseKey)
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assert.Equal(t, credentialSpecRegistryLocation, path)
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assert.Equal(t, uint32(registry.QUERY_VALUE), access)
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if len(err) > 0 {
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return nil, err[0]
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}
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return key, nil
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}
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return func() {
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registryOpenKeyFunc = previousRegistryOpenKeyFunc
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}
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}
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