add new kube_node_state_address metric that includes mutiple address/types

Author: stonith

internal/store/node.go

@@ -55,6 +55,7 @@ func nodeMetricFamilies(allowAnnotationsList, allowLabelsList []string) []genera
 		createNodeStatusAllocatableFamilyGenerator(),
 		createNodeStatusCapacityFamilyGenerator(),
 		createNodeStatusConditionFamilyGenerator(),
+		createNodeStateAddressFamilyGenerator(),
 	}
 }
 
@@ -105,6 +106,29 @@ func createNodeCreatedFamilyGenerator() generator.FamilyGenerator {
 	)
 }
 
+func createNodeStateAddressFamilyGenerator() generator.FamilyGenerator {
+	return *generator.NewFamilyGeneratorWithStability(
+		"kube_node_state_address",
+		"Node address information.",
+		metric.Gauge,
+		basemetrics.ALPHA,
+		"",
+		wrapNodeFunc(func(n *v1.Node) *metric.Family {
+			ms := []*metric.Metric{}
+			for _, address := range n.Status.Addresses {
+				ms = append(ms, &metric.Metric{
+					LabelKeys:   []string{"type", "address"},
+					LabelValues: []string{string(address.Type), address.Address},
+					Value:       1,
+				})
+			}
+			return &metric.Family{
+				Metrics: ms,
+			}
+		}),
+	)
+}
+
 func createNodeInfoFamilyGenerator() generator.FamilyGenerator {
 	return *generator.NewFamilyGeneratorWithStability(
 		"kube_node_info",

internal/store/node_test.go

@@ -274,6 +274,30 @@ func TestNodeStore(t *testing.T) {
 			`,
 			MetricNames: []string{"kube_node_spec_taint"},
 		},
+		{
+			Obj: &v1.Node{
+				ObjectMeta: metav1.ObjectMeta{
+					Name: "127.0.0.1",
+				},
+				Status: v1.NodeStatus{
+					Addresses: []v1.NodeAddress{
+						{Type: "InternalIP", Address: "1.2.3.4"},
+						{Type: "InternalIP", Address: "fc00::"},
+						{Type: "ExternalIP", Address: "5.6.7.8"},
+						{Type: "ExternalIP", Address: "2001:db8::"},
+					},
+				},
+			},
+			Want: `
+						# HELP kube_node_state_address Node address information.
+						# TYPE kube_node_state_address gauge
+						kube_node_state_address{node="127.0.0.1",type="InternalIP",address="1.2.3.4"} 1
+						kube_node_state_address{node="127.0.0.1",type="InternalIP",address="fc00::"} 1
+						kube_node_state_address{node="127.0.0.1",type="ExternalIP",address="5.6.7.8"} 1
+						kube_node_state_address{node="127.0.0.1",type="ExternalIP",address="2001:db8::"} 1
+					`,
+			MetricNames: []string{"kube_node_state_address"},
+		},
 	}
 	for i, c := range cases {
 		c.Func = generator.ComposeMetricGenFuncs(nodeMetricFamilies(nil, nil))