feat(probe): BGP session state as value (#237)

* fix(BGP Info): Added support for bgp session state as value next to label

* test(bgp): Updated tests to account for new value

* test(bgp): Also change metric description in tests

---------

Co-authored-by: Gianni Stubbe <[email protected]>

Author: 33Fraise33

Diff for: pkg/probe/bgp_neighbors.go

@@ -30,7 +30,7 @@ func probeBGPNeighborsIPv4(c http.FortiHTTP, meta *TargetMetadata) ([]prometheus
 	var (
 		mBGPNeighbor = prometheus.NewDesc(
 			"fortigate_bgp_neighbor_ipv4_info",
-			"Configured bgp neighbor over ipv4",
+			"Configured bgp neighbor over ipv4, return state as value (1 - Idle, 2 - Connect, 3 - Active, 4 - Open sent, 5 - Open confirm, 6 - Established)",
 			[]string{"vdom", "remote_as", "state", "admin_status", "local_ip", "neighbor_ip"}, nil,
 		)
 	)
@@ -46,7 +46,7 @@ func probeBGPNeighborsIPv4(c http.FortiHTTP, meta *TargetMetadata) ([]prometheus
 
 	for _, r := range rs {
 		for _, peer := range r.Results {
-			m = append(m, prometheus.MustNewConstMetric(mBGPNeighbor, prometheus.GaugeValue, 1, r.VDOM, strconv.Itoa(peer.RemoteAS), peer.State, strconv.FormatBool(peer.AdminStatus), peer.LocalIP, peer.NeighborIP))
+			m = append(m, prometheus.MustNewConstMetric(mBGPNeighbor, prometheus.GaugeValue, bgpStateToNumber(peer.State), r.VDOM, strconv.Itoa(peer.RemoteAS), peer.State, strconv.FormatBool(peer.AdminStatus), peer.LocalIP, peer.NeighborIP))
 		}
 	}
 
@@ -62,7 +62,7 @@ func probeBGPNeighborsIPv6(c http.FortiHTTP, meta *TargetMetadata) ([]prometheus
 	var (
 		mBGPNeighbor = prometheus.NewDesc(
 			"fortigate_bgp_neighbor_ipv6_info",
-			"Configured bgp neighbor over ipv6",
+			"Configured bgp neighbor over ipv6, return state as value (1 - Idle, 2 - Connect, 3 - Active, 4 - Open sent, 5 - Open confirm, 6 - Established)",
 			[]string{"vdom", "remote_as", "state", "admin_status", "local_ip", "neighbor_ip"}, nil,
 		)
 	)
@@ -78,9 +78,28 @@ func probeBGPNeighborsIPv6(c http.FortiHTTP, meta *TargetMetadata) ([]prometheus
 
 	for _, r := range rs {
 		for _, peer := range r.Results {
-			m = append(m, prometheus.MustNewConstMetric(mBGPNeighbor, prometheus.GaugeValue, 1, r.VDOM, strconv.Itoa(peer.RemoteAS), peer.State, strconv.FormatBool(peer.AdminStatus), peer.LocalIP, peer.NeighborIP))
+			m = append(m, prometheus.MustNewConstMetric(mBGPNeighbor, prometheus.GaugeValue, bgpStateToNumber(peer.State), r.VDOM, strconv.Itoa(peer.RemoteAS), peer.State, strconv.FormatBool(peer.AdminStatus), peer.LocalIP, peer.NeighborIP))
 		}
 	}
 
 	return m, true
 }
+
+func bgpStateToNumber(bgpState string) float64 {
+	switch bgpState {
+	case "Idle":
+		return 1
+	case "Connect":
+		return 2
+	case "Active":
+		return 3
+	case "Open sent":
+		return 4
+	case "Open confirm":
+		return 5
+	case "Established":
+		return 6
+	default:
+		return 0
+	}
+}

Diff for: pkg/probe/bgp_neighbors_test.go

@@ -17,9 +17,9 @@ func TestBGPNeighborsIPv4(t *testing.T) {
 	}
 
 	em := `
-    # HELP fortigate_bgp_neighbor_ipv4_info Configured bgp neighbor over ipv4
+    # HELP fortigate_bgp_neighbor_ipv4_info Configured bgp neighbor over ipv4, return state as value (1 - Idle, 2 - Connect, 3 - Active, 4 - Open sent, 5 - Open confirm, 6 - Established)
     # TYPE fortigate_bgp_neighbor_ipv4_info gauge
-    fortigate_bgp_neighbor_ipv4_info{admin_status="true",local_ip="10.0.0.0",neighbor_ip="10.0.0.1",remote_as="1337",state="Established",vdom="root"} 1
+    fortigate_bgp_neighbor_ipv4_info{admin_status="true",local_ip="10.0.0.0",neighbor_ip="10.0.0.1",remote_as="1337",state="Established",vdom="root"} 6
 	`
 
 	if err := testutil.GatherAndCompare(r, strings.NewReader(em)); err != nil {
@@ -36,9 +36,9 @@ func TestBGPNeighborsIPv6(t *testing.T) {
 	}
 
 	em := `
-    # HELP fortigate_bgp_neighbor_ipv6_info Configured bgp neighbor over ipv6
+    # HELP fortigate_bgp_neighbor_ipv6_info Configured bgp neighbor over ipv6, return state as value (1 - Idle, 2 - Connect, 3 - Active, 4 - Open sent, 5 - Open confirm, 6 - Established)
     # TYPE fortigate_bgp_neighbor_ipv6_info gauge
-    fortigate_bgp_neighbor_ipv6_info{admin_status="true",local_ip="fd00::1",neighbor_ip="fd00::2",remote_as="1337",state="Established",vdom="root"} 1
+    fortigate_bgp_neighbor_ipv6_info{admin_status="true",local_ip="fd00::1",neighbor_ip="fd00::2",remote_as="1337",state="Established",vdom="root"} 6
 	`
 
 	if err := testutil.GatherAndCompare(r, strings.NewReader(em)); err != nil {