Plugins: Add metrics for fs + cloud provisioning info (#111030)

* add new metrics for plugin fs + cloud provisioning

* fix test

* update label

pkg/plugins/ifaces.go

@@ -72,6 +72,7 @@ type UpdateInfo struct {
 type FS interface {
 	fs.FS
 
+	Type() string
 	Base() string
 	Files() ([]string, error)
 	Rel(string) (string, error)

pkg/plugins/localfiles.go

@@ -30,6 +30,10 @@ func NewLocalFS(basePath string) LocalFS {
 	return LocalFS{basePath: basePath}
 }
 
+func (f LocalFS) Type() string {
+	return "local"
+}
+
 // fileIsAllowed takes an absolute path to a file and an os.FileInfo for that file, and it checks if access to that
 // file is allowed or not. Access to a file is allowed if the file is in the FS's Base() directory, and if it's a
 // symbolic link it should not end up outside the plugin's directory.
@@ -215,6 +219,10 @@ func NewStaticFS(fs FS) (StaticFS, error) {
 	}, nil
 }
 
+func (f StaticFS) Type() string {
+	return f.FS.Type()
+}
+
 // Open checks that name is an allowed file and, if so, it returns a fs.File to access it, by calling the
 // underlying FS' Open() method.
 // If access is denied, the function returns ErrFileNotExist.

pkg/plugins/manager/fakes/fakes.go

@@ -444,6 +444,10 @@ func NewFakePluginFS(base string) *FakePluginFS {
 	}
 }
 
+func (f *FakePluginFS) Type() string {
+	return "fake"
+}
+
 func (f *FakePluginFS) Open(name string) (fs.File, error) {
 	if f.OpenFunc != nil {
 		return f.OpenFunc(name)

pkg/plugins/manager/signature/manifest_test.go

@@ -345,6 +345,10 @@ func newPathSeparatorOverrideFS(sep string, ufs plugins.FS) (fsPathSeparatorFile
 	}, nil
 }
 
+func (f fsPathSeparatorFiles) Type() string {
+	return f.FS.Type()
+}
+
 // Files returns LocalFS.Files(), but all path separators for the current platform (filepath.Separator)
 // are replaced with f.separator.
 func (f fsPathSeparatorFiles) Files() ([]string, error) {

pkg/plugins/models.go

@@ -456,3 +456,20 @@ type QueryCachingConfig struct {
 	Enabled bool  `json:"enabled"`
 	TTLMS   int64 `json:"TTLMs"`
 }
+
+// CloudProvisioningMethod is the method used to provision the plugin in Grafana Cloud.
+type CloudProvisioningMethod string
+
+const (
+	// CloudProvisioningMethodUnknown is used when the plugin provisioning method is unknown.
+	CloudProvisioningMethodUnknown CloudProvisioningMethod = "unknown"
+
+	// CloudProvisioningMethodNone is used when the plugin is not provisioned in Grafana Cloud.
+	CloudProvisioningMethodNone CloudProvisioningMethod = "none"
+
+	// CloudProvisioningMethodURL is used when the plugin is provisioned from a URL.
+	CloudProvisioningMethodURL CloudProvisioningMethod = "url"
+
+	// CloudProvisioningMethodCatalog is used when the plugin is provisioned from the catalog.
+	CloudProvisioningMethodCatalog CloudProvisioningMethod = "catalog"
+)

pkg/plugins/test_utils.go

@@ -47,6 +47,10 @@ func (f inMemoryFS) Open(fn string) (fs.File, error) {
 	return &inMemoryFile{path: fn, reader: bytes.NewReader(f.files[fn])}, nil
 }
 
+func (f inMemoryFS) Type() string {
+	return "in-memory"
+}
+
 // NewFakeFS returns a new FS that always returns ErrFileNotExist when trying to Open() and empty Files().
 func NewFakeFS() FS {
 	return NewInMemoryFS(nil)