Trace UI demo (#20297)

* Add integration with Jeager
Add Jaeger datasource and modify derived fields in loki to allow for opening a trace in Jager in separate split.
Modifies build so that this branch docker images are pushed to docker hub
Add a traceui dir with docker-compose and provision files for demoing.:wq

* Enable docker logger plugin to send logs to loki

* Add placeholder zipkin datasource

* Fixed rebase issues, added enhanceDataFrame to non-legacy code path

* Trace selector for jaeger query field

* Fix logs default mode for Loki

* Fix loading jaeger query field services on split

* Updated grafana image in traceui/compose file

* Fix prettier error

* Hide behind feature flag, clean up unused code.

* Fix tests

* Fix tests

* Cleanup code and review feedback

* Remove traceui directory

* Remove circle build changes

* Fix feature toggles object

* Fix merge issues

* Fix some null errors

* Fix test after strict null changes

* Review feedback fixes

* Fix toggle name

Co-authored-by: David Kaltschmidt <david.kaltschmidt@gmail.com>

pkg/plugins/dashboard_importer_test.go

@@ -92,7 +92,11 @@ func pluginScenario(desc string, t *testing.T, fn func()) {
 		_, err := sec.NewKey("path", "testdata/test-app")
 		So(err, ShouldBeNil)
 
-		pm := &PluginManager{}
+		pm := &PluginManager{
+			Cfg: &setting.Cfg{
+				FeatureToggles: map[string]bool{},
+			},
+		}
 		err = pm.Init()
 		So(err, ShouldBeNil)
 

pkg/plugins/dashboards_test.go

@@ -18,7 +18,11 @@ func TestPluginDashboards(t *testing.T) {
 		_, err := sec.NewKey("path", "testdata/test-app")
 		So(err, ShouldBeNil)
 
-		pm := &PluginManager{}
+		pm := &PluginManager{
+			Cfg: &setting.Cfg{
+				FeatureToggles: map[string]bool{},
+			},
+		}
 		err = pm.Init()
 		So(err, ShouldBeNil)
 

pkg/plugins/datasource_plugin.go

@@ -23,6 +23,7 @@ type DataSourcePlugin struct {
 	Explore      bool              `json:"explore"`
 	Table        bool              `json:"tables"`
 	Logs         bool              `json:"logs"`
+	Tracing      bool              `json:"tracing"`
 	QueryOptions map[string]bool   `json:"queryOptions,omitempty"`
 	BuiltIn      bool              `json:"builtIn,omitempty"`
 	Mixed        bool              `json:"mixed,omitempty"`

pkg/plugins/plugins.go

@@ -42,10 +42,12 @@ type PluginScanner struct {
 	pluginPath           string
 	errors               []error
 	backendPluginManager backendplugin.Manager
+	cfg                  *setting.Cfg
 }
 
 type PluginManager struct {
 	BackendPluginManager backendplugin.Manager `inject:""`
+	Cfg                  *setting.Cfg          `inject:""`
 	log                  log.Logger
 }
 
@@ -164,6 +166,7 @@ func (pm *PluginManager) scan(pluginDir string) error {
 	scanner := &PluginScanner{
 		pluginPath:           pluginDir,
 		backendPluginManager: pm.BackendPluginManager,
+		cfg:                  pm.Cfg,
 	}
 
 	if err := util.Walk(pluginDir, true, true, scanner.walker); err != nil {
@@ -213,6 +216,14 @@ func (scanner *PluginScanner) walker(currentPath string, f os.FileInfo, err erro
 		return nil
 	}
 
+	if !scanner.cfg.FeatureToggles["tracingIntegration"] {
+		// Do not load tracing datasources if
+		prefix := path.Join(setting.StaticRootPath, "app/plugins/datasource")
+		if strings.Contains(currentPath, path.Join(prefix, "jaeger")) || strings.Contains(currentPath, path.Join(prefix, "zipkin")) {
+			return nil
+		}
+	}
+
 	if f.Name() == "plugin.json" {
 		err := scanner.loadPluginJson(currentPath)
 		if err != nil {

pkg/plugins/plugins_test.go

@@ -15,7 +15,11 @@ func TestPluginScans(t *testing.T) {
 		setting.StaticRootPath, _ = filepath.Abs("../../public/")
 		setting.Raw = ini.Empty()
 
-		pm := &PluginManager{}
+		pm := &PluginManager{
+			Cfg: &setting.Cfg{
+				FeatureToggles: map[string]bool{},
+			},
+		}
 		err := pm.Init()
 
 		So(err, ShouldBeNil)
@@ -34,7 +38,11 @@ func TestPluginScans(t *testing.T) {
 		_, err = sec.NewKey("path", "testdata/test-app")
 		So(err, ShouldBeNil)
 
-		pm := &PluginManager{}
+		pm := &PluginManager{
+			Cfg: &setting.Cfg{
+				FeatureToggles: map[string]bool{},
+			},
+		}
 		err = pm.Init()
 		So(err, ShouldBeNil)