NET-1920: Add disconnected node status (#3300)

* create peer ack table

* add restricted status

* add disconnected status

database/database.go

@@ -71,6 +71,8 @@ const (
 	USER_INVITES_TABLE_NAME = "user_invites"
 	// TAG_TABLE_NAME - table for tags
 	TAG_TABLE_NAME = "tags"
+	// PEER_ACK_TABLE - table for failover peer ack
+	PEER_ACK_TABLE = "peer_ack"
 	// == ERROR CONSTS ==
 	// NO_RECORD - no singular result found
 	NO_RECORD = "no result found"
@@ -158,6 +160,7 @@ func createTables() {
 	CreateTable(USER_INVITES_TABLE_NAME)
 	CreateTable(TAG_TABLE_NAME)
 	CreateTable(ACLS_TABLE_NAME)
+	CreateTable(PEER_ACK_TABLE)
 }
 
 func CreateTable(tableName string) error {

logic/status.go

@@ -18,6 +18,10 @@ func getNodeStatus(node *models.Node, t bool) {
 		node.Status = models.OnlineSt
 		return
 	}
+	if !node.Connected {
+		node.Status = models.Disconnected
+		return
+	}
 	if time.Since(node.LastCheckIn) > time.Minute*10 {
 		node.Status = models.OfflineSt
 		return

models/node.go

@@ -14,11 +14,12 @@ import (
 type NodeStatus string
 
 const (
-	OnlineSt  NodeStatus = "online"
+	OnlineSt     NodeStatus = "online"
-	OfflineSt NodeStatus = "offline"
+	OfflineSt    NodeStatus = "offline"
-	WarningSt NodeStatus = "warning"
+	WarningSt    NodeStatus = "warning"
-	ErrorSt   NodeStatus = "error"
+	ErrorSt      NodeStatus = "error"
-	UnKnown   NodeStatus = "unknown"
+	UnKnown      NodeStatus = "unknown"
+	Disconnected NodeStatus = "disconnected"
 )
 
 // LastCheckInThreshold - if node's checkin more than this threshold,then node is declared as offline

pro/logic/status.go

@@ -17,6 +17,10 @@ func getNodeStatusOld(node *models.Node) {
 		node.Status = models.OnlineSt
 		return
 	}
+	if !node.Connected {
+		node.Status = models.Disconnected
+		return
+	}
 	if time.Since(node.LastCheckIn) > time.Minute*10 {
 		node.Status = models.OfflineSt
 		return
@@ -31,12 +35,25 @@ func GetNodeStatus(node *models.Node, defaultEnabledPolicy bool) {
 			node.Status = models.OfflineSt
 			return
 		}
+		ingNode, err := logic.GetNodeByID(node.StaticNode.IngressGatewayID)
+		if err != nil {
+			node.Status = models.OfflineSt
+			return
+		}
+		if !defaultEnabledPolicy {
+			allowed, _ := logic.IsNodeAllowedToCommunicate(*node, ingNode, false)
+			if !allowed {
+				node.Status = models.OnlineSt
+				return
+			}
+		}
 		// check extclient connection from metrics
 		ingressMetrics, err := GetMetrics(node.StaticNode.IngressGatewayID)
 		if err != nil || ingressMetrics == nil || ingressMetrics.Connectivity == nil {
 			node.Status = models.UnKnown
 			return
 		}
+
 		if metric, ok := ingressMetrics.Connectivity[node.StaticNode.ClientID]; ok {
 			if metric.Connected {
 				node.Status = models.OnlineSt
@@ -46,9 +63,14 @@ func GetNodeStatus(node *models.Node, defaultEnabledPolicy bool) {
 				return
 			}
 		}
+
 		node.Status = models.UnKnown
 		return
 	}
+	if !node.Connected {
+		node.Status = models.Disconnected
+		return
+	}
 	if time.Since(node.LastCheckIn) > models.LastCheckInThreshold {
 		node.Status = models.OfflineSt
 		return
@@ -197,6 +219,7 @@ func checkPeerConnectivity(node *models.Node, metrics *models.Metrics, defaultAc
 		peerNotConnectedCnt++
 
 	}
+
 	if peerNotConnectedCnt > len(metrics.Connectivity)/2 {
 		node.Status = models.WarningSt
 		return