K8s: Add basic query service (#80325)

pkg/plugins/apiserver.go

@@ -0,0 +1,27 @@
+package plugins
+
+import (
+	"fmt"
+	"strings"
+)
+
+// Get the default API group name for from a plugin ID
+// NOTE: this is a work in progress, and may change without notice
+func GetDatasourceGroupNameFromPluginID(pluginId string) (string, error) {
+	if pluginId == "" {
+		return "", fmt.Errorf("bad pluginID (empty)")
+	}
+	parts := strings.Split(pluginId, "-")
+	if len(parts) == 1 {
+		return fmt.Sprintf("%s.datasource.grafana.app", parts[0]), nil
+	}
+
+	last := parts[len(parts)-1]
+	if last != "datasource" {
+		return "", fmt.Errorf("bad pluginID (%s)", pluginId)
+	}
+	if parts[0] == "grafana" {
+		parts = parts[1:] // strip the first value
+	}
+	return fmt.Sprintf("%s.datasource.grafana.app", strings.Join(parts[:len(parts)-1], "-")), nil
+}

pkg/plugins/apiserver_test.go

@@ -0,0 +1,32 @@
+package plugins
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestUtils(t *testing.T) {
+	// multiple flavors of the same idea
+	require.Equal(t, "tempo.datasource.grafana.app", getIDIgnoreError("tempo"))
+	require.Equal(t, "tempo.datasource.grafana.app", getIDIgnoreError("grafana-tempo-datasource"))
+	require.Equal(t, "tempo.datasource.grafana.app", getIDIgnoreError("tempo-datasource"))
+
+	// Multiple dashes in the name
+	require.Equal(t, "org-name.datasource.grafana.app", getIDIgnoreError("org-name-datasource"))
+	require.Equal(t, "org-name-more.datasource.grafana.app", getIDIgnoreError("org-name-more-datasource"))
+	require.Equal(t, "org-name-more-more.datasource.grafana.app", getIDIgnoreError("org-name-more-more-datasource"))
+
+	require.Error(t, getErrorIgnoreValue("graph-panel"))
+	require.Error(t, getErrorIgnoreValue("anything-notdatasource"))
+}
+
+func getIDIgnoreError(id string) string {
+	v, _ := GetDatasourceGroupNameFromPluginID(id)
+	return v
+}
+
+func getErrorIgnoreValue(id string) error {
+	_, err := GetDatasourceGroupNameFromPluginID(id)
+	return err
+}