smoke: add mount api test case

Signed-off-by: fappy1234567 <[email protected]>

smoke/tests/api_test.go

@@ -193,6 +193,48 @@ func (a *APIV1TestSuite) TestPrefetch(t *testing.T) {
 	require.NoError(t, err)
 }
 
+func (a *APIV1TestSuite) TestMount(t *testing.T) {
+
+	ctx := tool.DefaultContext(t)
+
+	ctx.PrepareWorkDir(t)
+	defer ctx.Destroy(t)
+
+	rootFs := texture.MakeLowerLayer(t, filepath.Join(ctx.Env.WorkDir, "rootfs"))
+
+	rafs := a.buildLayer(t, ctx, rootFs)
+
+	config := tool.NydusdConfig{
+		NydusdPath:  ctx.Binary.Nydusd,
+		MountPath:   ctx.Env.MountDir,
+		APISockPath: filepath.Join(ctx.Env.WorkDir, "nydusd-api.sock"),
+		ConfigPath:  filepath.Join(ctx.Env.WorkDir, "nydusd-config.fusedev.json"),
+	}
+	nydusd, err := tool.NewNydusd(config)
+	require.NoError(t, err)
+
+	err = nydusd.Mount()
+	require.NoError(t, err)
+
+	config.BootstrapPath = rafs
+	config.MountPath = "/mount"
+	config.BackendType = "localfs"
+	config.BackendConfig = fmt.Sprintf(`{"dir": "%s"}`, ctx.Env.BlobDir)
+	config.BlobCacheDir = ctx.Env.CacheDir
+	config.CacheType = ctx.Runtime.CacheType
+	config.CacheCompressed = ctx.Runtime.CacheCompressed
+	config.RafsMode = ctx.Runtime.RafsMode
+	config.EnablePrefetch = ctx.Runtime.EnablePrefetch
+	config.DigestValidate = false
+	config.AmplifyIO = ctx.Runtime.AmplifyIO
+	err = nydusd.MountByAPI(config)
+	require.NoError(t, err)
+
+	defer nydusd.Umount()
+	defer nydusd.UmountByAPI(config.MountPath)
+	nydusd.VerifyByPath(t, rootFs.FileTree, config.MountPath)
+}
+
 func (a *APIV1TestSuite) buildLayer(t *testing.T, ctx *tool.Context, rootFs *tool.Layer) string {
 	digest := rootFs.Pack(t,
 		converter.PackOption{

smoke/tests/tool/nydusd.go

@@ -315,19 +315,13 @@ func (nydusd *Nydusd) Mount() error {
 }
 
 func (nydusd *Nydusd) MountByAPI(config NydusdConfig) error {
-	err := makeConfig(NydusdConfigTpl, config)
-	if err != nil {
-		return err
-	}
-	f, err := os.Open(config.ConfigPath)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-	rafsConfig, err := io.ReadAll(f)
-	if err != nil {
-		return err
+	tpl := template.Must(template.New("").Parse(configTpl))
+
+	var ret bytes.Buffer
+	if err := tpl.Execute(&ret, config); err != nil {
+		return errors.New("prepare config template for Nydusd")
 	}
+	rafsConfig := ret.String()
 
 	nydusdConfig := struct {
 		Bootstrap     string   `json:"source"`
@@ -336,7 +330,7 @@ func (nydusd *Nydusd) MountByAPI(config NydusdConfig) error {
 		PrefetchFiles []string `json:"prefetch_files"`
 	}{
 		Bootstrap:     config.BootstrapPath,
-		RafsConfig:    string(rafsConfig),
+		RafsConfig:    rafsConfig,
 		FsType:        "rafs",
 		PrefetchFiles: config.PrefetchFiles,
 	}
@@ -352,6 +346,7 @@ func (nydusd *Nydusd) MountByAPI(config NydusdConfig) error {
 	)
 
 	return err
+
 }
 
 func (nydusd *Nydusd) Umount() error {
@@ -365,6 +360,21 @@ func (nydusd *Nydusd) Umount() error {
 	return nil
 }
 
+func (nydusd *Nydusd) UmountByAPI(subPath string) error {
+	url := fmt.Sprintf("http://unix/api/v1/mount?mountpoint=%s", subPath)
+	req, err := http.NewRequest("DELETE", url, nil)
+	if err != nil {
+		return err
+	}
+	resp, err := nydusd.client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	return nil
+}
+
 func (nydusd *Nydusd) WaitStatus(states ...string) error {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
 	defer cancel()
@@ -622,17 +632,19 @@ func (nydusd *Nydusd) GetInflightMetrics() (*InflightMetrics, error) {
 }
 
 func (nydusd *Nydusd) Verify(t *testing.T, expectedFileTree map[string]*File) {
+	nydusd.VerifyByPath(t, expectedFileTree, "")
+}
+
+func (nydusd *Nydusd) VerifyByPath(t *testing.T, expectedFileTree map[string]*File, subPath string) {
 	actualFiles := map[string]*File{}
-	err := filepath.WalkDir(nydusd.MountPath, func(path string, _ fs.DirEntry, err error) error {
+	mountPath := filepath.Join(nydusd.MountPath, subPath)
+	err := filepath.WalkDir(mountPath, func(path string, _ fs.DirEntry, err error) error {
 		require.Nil(t, err)
-
-		targetPath, err := filepath.Rel(nydusd.MountPath, path)
+		targetPath, err := filepath.Rel(mountPath, path)
 		require.NoError(t, err)
-
 		if targetPath == "." || targetPath == ".." {
 			return nil
 		}
-
 		file := NewFile(t, path, targetPath)
 		actualFiles[targetPath] = file
 		if expectedFileTree[targetPath] != nil {