added ability to remove local instance of netmaker

controllers/networkHttpController.go

@@ -344,14 +344,14 @@ func DeleteNetwork(network string) error {
 		servers, err := logic.GetSortedNetworkServerNodes(network)
 		if err == nil {
 			for _, s := range servers {
-				if err = logic.DeleteNode(s.ID, true); err != nil {
-					functions.PrintUserLog("[netmaker]", "could not removed server "+s.Name+" before deleting network "+network, 2)
+				if err = logic.DeleteNode(&s, true); err != nil {
+					functions.PrintUserLog("", "could not removed server "+s.Name+" before deleting network "+network, 2)
 				} else {
-					functions.PrintUserLog("[netmaker]", "removed server "+s.Name+" before deleting network "+network, 2)
+					functions.PrintUserLog("", "removed server "+s.Name+" before deleting network "+network, 2)
 				}
 			}
 		} else {
-			functions.PrintUserLog("[netmaker]", "could not remove servers before deleting network "+network, 1)
+			functions.PrintUserLog("", "could not remove servers before deleting network "+network, 1)
 		}
 		return database.DeleteRecord(database.NETWORKS_TABLE_NAME, network)
 	}

functions/helpers.go

@@ -24,7 +24,7 @@ import (
 func PrintUserLog(username string, message string, loglevel int) {
 	log.SetFlags(log.Flags() &^ (log.Llongfile | log.Lshortfile))
 	if int32(loglevel) <= servercfg.GetVerbose() && servercfg.GetVerbose() != 0 {
-		log.Println(username, message)
+		log.Println("[netmaker]", username, message)
 	}
 }
 

logic/nodes.go

@@ -80,7 +80,7 @@ func GetPeers(node models.Node) ([]models.Node, error) {
 func IsLeader(node *models.Node) bool {
 	nodes, err := GetSortedNetworkServerNodes(node.Network)
 	if err != nil {
-		functions.PrintUserLog("[netmaker]", "ERROR: COULD NOT RETRIEVE SERVER NODES. THIS WILL BREAK HOLE PUNCHING.", 0)
+		functions.PrintUserLog("", "ERROR: COULD NOT RETRIEVE SERVER NODES. THIS WILL BREAK HOLE PUNCHING.", 0)
 		return false
 	}
 	for _, n := range nodes {

logic/server.go

@@ -8,9 +8,10 @@ import (
 	"strconv"
 	"strings"
 	"time"
-	"github.com/gravitl/netmaker/servercfg"
+
 	"github.com/gravitl/netmaker/models"
 	"github.com/gravitl/netmaker/netclient/ncutils"
+	"github.com/gravitl/netmaker/servercfg"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
@@ -239,7 +240,7 @@ func ServerLeave(mac string, network string) error {
 		return err
 	}
 	serverNode.SetID()
-	return DeleteNode(serverNode.ID, true)
+	return DeleteNode(&serverNode, true)
 }
 
 // GetServerPeers - gets peers of server

logic/util.go

@@ -45,8 +45,10 @@ func SetNetworkServerPeers(node *models.Node) {
 }
 
 // DeleteNode - deletes a node from database or moves into delete nodes table
-func DeleteNode(key string, exterminate bool) error {
+func DeleteNode(node *models.Node, exterminate bool) error {
 	var err error
+	node.SetID()
+	var key = node.ID
 	if !exterminate {
 		args := strings.Split(key, "###")
 		node, err := GetNode(args[0], args[1])
@@ -67,13 +69,13 @@ func DeleteNode(key string, exterminate bool) error {
 			Log(err.Error(), 2)
 		}
 	}
-	if err := database.DeleteRecord(database.NODES_TABLE_NAME, key); err != nil {
+	if err = database.DeleteRecord(database.NODES_TABLE_NAME, key); err != nil {
 		return err
 	}
 	if servercfg.IsDNSMode() {
 		err = dnslogic.SetDNS()
 	}
-	return err
+	return removeLocalServer(node)
 }
 
 // CreateNode - creates a node in database

logic/wireguard.go

@@ -313,3 +313,47 @@ func setWGKeyConfig(node models.Node) error {
 
 	return setWGConfig(node, node.Network, false)
 }
+
+func removeLocalServer(node *models.Node) error {
+	var ifacename = node.Interface
+	var err error
+	if ifacename != "" {
+		if !ncutils.IsKernel() {
+			if err = RemoveConf(ifacename, true); err == nil {
+				Log("removed WireGuard interface: "+ifacename, 1)
+			}
+		} else {
+			ipExec, err := exec.LookPath("ip")
+			if err != nil {
+				return err
+			}
+			out, err := ncutils.RunCmd(ipExec+" link del "+ifacename, false)
+			dontprint := strings.Contains(out, "does not exist") || strings.Contains(out, "Cannot find device")
+			if err != nil && !dontprint {
+				Log("error running command: "+ipExec+" link del "+ifacename, 1)
+				Log(out, 1)
+			}
+			if node.PostDown != "" {
+				runcmds := strings.Split(node.PostDown, "; ")
+				_ = ncutils.RunCmds(runcmds, false)
+			}
+		}
+	}
+	home := ncutils.GetNetclientPathSpecific()
+	if ncutils.FileExists(home + "netconfig-" + node.Network) {
+		_ = os.Remove(home + "netconfig-" + node.Network)
+	}
+	if ncutils.FileExists(home + "nettoken-" + node.Network) {
+		_ = os.Remove(home + "nettoken-" + node.Network)
+	}
+	if ncutils.FileExists(home + "secret-" + node.Network) {
+		_ = os.Remove(home + "secret-" + node.Network)
+	}
+	if ncutils.FileExists(home + "wgkey-" + node.Network) {
+		_ = os.Remove(home + "wgkey-" + node.Network)
+	}
+	if ncutils.FileExists(home + "nm-" + node.Network + ".conf") {
+		_ = os.Remove(home + "nm-" + node.Network + ".conf")
+	}
+	return err
+}

netclient/functions/common.go

@@ -12,7 +12,6 @@ import (
 	"strings"
 
 	nodepb "github.com/gravitl/netmaker/grpc"
-	"github.com/gravitl/netmaker/logic"
 	"github.com/gravitl/netmaker/models"
 	"github.com/gravitl/netmaker/netclient/auth"
 	"github.com/gravitl/netmaker/netclient/config"
@@ -206,13 +205,6 @@ func LeaveNetwork(network string) error {
 				ncutils.PrintLog("removed machine from "+node.Network+" network on remote server", 1)
 			}
 		}
-	} else { // handle server side
-		node.SetID()
-		if err = logic.DeleteNode(node.ID, true); err != nil {
-			ncutils.PrintLog("error removing server on network "+node.Network, 1)
-		} else {
-			ncutils.PrintLog("removed netmaker server instance on  "+node.Network, 1)
-		}
 	}
 	return RemoveLocalInstance(cfg, network)
 }