Merge pull request #71 from K-Phoen/singlestat-stackdriver

Support stackdriver targets in singlestat panels

decoder/singlestat.go

@@ -118,6 +118,14 @@ func (singleStatPanel DashboardSingleStat) target(t Target) (singlestat.Option,
 	if t.Prometheus != nil {
 		return singlestat.WithPrometheusTarget(t.Prometheus.Query, t.Prometheus.toOptions()...), nil
 	}
+	if t.Stackdriver != nil {
+		stackdriverTarget, err := t.Stackdriver.toTarget()
+		if err != nil {
+			return nil, err
+		}
+
+		return singlestat.WithStackdriverTarget(stackdriverTarget), nil
+	}
 
 	return nil, ErrTargetNotConfigured
 }

singlestat/singlestat.go

@@ -4,6 +4,7 @@ import (
 	"strings"
 
 	"github.com/K-Phoen/grabana/target/prometheus"
+	"github.com/K-Phoen/grabana/target/stackdriver"
 	"github.com/grafana-tools/sdk"
 )
 
@@ -165,6 +166,13 @@ func WithPrometheusTarget(query string, options ...prometheus.Option) Option {
 	}
 }
 
+// WithStackdriverTarget adds a stackdriver query to the graph.
+func WithStackdriverTarget(target *stackdriver.Stackdriver) Option {
+	return func(singleStat *SingleStat) {
+		singleStat.Builder.AddTarget(target.Builder)
+	}
+}
+
 // Span sets the width of the panel, in grid units. Should be a positive
 // number between 1 and 12. Example: 6.
 func Span(span float32) Option {

singlestat/singlestat_test.go

@@ -3,6 +3,7 @@ package singlestat
 import (
 	"testing"
 
+	"github.com/K-Phoen/grabana/target/stackdriver"
 	"github.com/stretchr/testify/require"
 )
 
@@ -42,6 +43,14 @@ func TestSingleStatPanelCanHavePrometheusTargets(t *testing.T) {
 	req.Len(panel.Builder.SinglestatPanel.Targets, 1)
 }
 
+func TestSingleStatPanelCanHaveStackdriverTargets(t *testing.T) {
+	req := require.New(t)
+
+	panel := New("", WithStackdriverTarget(stackdriver.Gauge("pubsub.googleapis.com/subscription/ack_message_count")))
+
+	req.Len(panel.Builder.SinglestatPanel.Targets, 1)
+}
+
 func TestSingleStatPanelWidthCanBeConfigured(t *testing.T) {
 	req := require.New(t)