From 76e8d668751341854482663e6166637d8693aa91 Mon Sep 17 00:00:00 2001
From: Mickael BOURNEUF <mickael.bourneuf@celeonet.fr>
Date: Fri, 28 Feb 2025 12:47:13 +0100
Subject: [PATCH] Modification sur la structure du cluster

---
 cmd/monitor/events/qemu.go                    | 209 +++++++++++---
 cmd/monitor/events/server.go                  |   6 +-
 go.sum                                        |   2 -
 pkg/api/domain/domain.go                      | 113 ++++----
 pkg/api/domain/events.go                      | 110 +++++++-
 pkg/api/node.go                               |  44 ---
 pkg/api/node/node.go                          |  44 +++
 pkg/api/proto/domain.pb.go                    | 261 ++++++++++--------
 pkg/api/proto/domain.proto                    |   6 +-
 pkg/api/proto/node.pb.go                      | 105 ++++---
 pkg/api/proto/node.proto                      |  12 +-
 pkg/api/proto/node_grpc.pb.go                 |  53 ++--
 pkg/api/raft/node.go                          |  30 +-
 pkg/api/raft/schema.go                        |   4 +-
 pkg/api/raft/worker.go                        |  24 +-
 pkg/api/server.go                             |   4 +-
 pkg/schema/deevirt/domain.go                  |  12 +
 pkg/schema/deevirt/node.go                    |  10 +
 .../protobuf/types/known/emptypb/empty.pb.go  | 150 ----------
 vendor/modules.txt                            |   1 -
 20 files changed, 674 insertions(+), 526 deletions(-)
 delete mode 100644 pkg/api/node.go
 create mode 100644 pkg/api/node/node.go
 create mode 100644 pkg/schema/deevirt/domain.go
 create mode 100644 pkg/schema/deevirt/node.go
 delete mode 100644 vendor/google.golang.org/protobuf/types/known/emptypb/empty.pb.go

diff --git a/cmd/monitor/events/qemu.go b/cmd/monitor/events/qemu.go
index e231698..6d7e5a2 100644
--- a/cmd/monitor/events/qemu.go
+++ b/cmd/monitor/events/qemu.go
@@ -1,52 +1,191 @@
 package events
 
 import (
-	"libvirt.org/go/libvirt"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"strings"
+	"time"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/protobuf/types/known/timestamppb"
+	go_libvirt "libvirt.org/go/libvirt"
+
+	"deevirt.fr/compute/pkg/api/libvirt"
+	pb "deevirt.fr/compute/pkg/api/proto"
+	"deevirt.fr/compute/pkg/config"
+	deevirt_schema "deevirt.fr/compute/pkg/schema/deevirt"
 )
 
-type Qemu struct {
-	NodeID       string
-	CompanyID    string
-	DatacenterID string
-	Config       []byte
-	DomainID     string
-	State        int
-	Event        *libvirt.DomainQemuMonitorEvent
+type qemu struct {
+	clientVirt *go_libvirt.Connect
+	config     *config.Config
+	nodes      deevirt_schema.NodeStore
 }
 
-func QemuEvents(c *libvirt.Connect, d *libvirt.Domain, event *libvirt.DomainQemuMonitorEvent) {
-	/*var desc schema.Domain
+func NewQemu(c *go_libvirt.Connect) qemu {
 	config, _ := config.New()
 
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	return qemu{
+		clientVirt: c,
+		config:     config,
+	}
+}
+
+/*
+Si l'hote est isolé, il faut impérativement arrêter les VMs.
+*/
+func (q qemu) stonith(ctx context.Context) {
+	log.Printf("Perte de la communication avec les manager, procédure d'urgence enclenché.")
+	for {
+		select {
+		case <-ctx.Done():
+			// Le service est de retour, on annule le stonith
+			log.Printf("L'accessibilité avec les manager est revenue, la procédure d'urgence est avortée.")
+			return
+		case <-time.After(10 * time.Second):
+			// On controle l'accessibilité des autres serveurs via libvirt, si un serveur est accessible, on peut supposer un problème avec le manager
+			for _, domData := range q.nodes {
+				_, err := libvirt.New(domData.IpManagement, q.config.LibvirtTLS)
+				if err == nil {
+					log.Printf("Au moins un noeud est joignable, la procédure d'urgence est avortée.")
+					return
+				}
+			}
+
+			// Manager inaccessible et autres noeuds libvirt aussi
+			log.Printf("Urgence ! Arrêt de toutes les VMs en cours d'exécution")
+			doms, _ := q.clientVirt.ListAllDomains(go_libvirt.CONNECT_LIST_DOMAINS_ACTIVE | go_libvirt.CONNECT_LIST_DOMAINS_PAUSED)
+			for _, dom := range doms {
+				dom.Destroy()
+			}
+		}
+	}
+}
+
+/*
+On se connecte au manager afin d'envoyer une pulsation de disponibilité toutes les 1 secondes.
+*/
+func (q qemu) heartbeat() {
+	var destroyCtx context.Context
+	var destroyCancel context.CancelFunc
+
+	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	domainID, _ := d.GetUUIDString()
-	xmlDesc, _ := d.GetXMLDesc(libvirt.DOMAIN_XML_INACTIVE)
-	state, _, _ := d.GetState()
-	err := xml.Unmarshal([]byte(xmlDesc), &desc)
-	if err != nil {
-		log.Fatalln(err)
-	}
+	var retryPolicy = `{
+		"methodConfig": [{
+			"retryPolicy": {
+				"MaxAttempts": 40,
+				"InitialBackoff": "1s",
+				"MaxBackoff": "10s",
+				"BackoffMultiplier": 1.0,
+				"retryableStatusCodes": ["UNAVAILABLE", "DEADLINE_EXCEEDED"]
+			},
+			"waitForReady": true
+		}],
+		"loadBalancingConfig": [{
+			"round_robin": {} 
+		}]
+	}`
 
-	e, _ := json.Marshal(&Qemu{
-		NodeID:       config.NodeID,
-		CompanyID:    desc.Metadata.DeevirtInstance.DeevirtCompanyID,
-		DatacenterID: desc.Metadata.DeevirtInstance.DeevirtDatacenterID,
-		Config:       []byte(xmlDesc),
-		DomainID:     domainID,
-		State:        int(state),
-		Event:        event,
-	})
-
-	conn, err := grpc.NewClient(strings.Join(config.Manager.Peers, ","), grpc.WithTransportCredentials(insecure.NewCredentials()))
+	conn, err := grpc.NewClient(strings.Join(q.config.Manager.Peers, ","), grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithDefaultServiceConfig(retryPolicy))
 	if err != nil {
-		log.Fatalf("Erreur de connexion : %v", err)
+		fmt.Printf("%v", err)
+		return
 	}
 	defer conn.Close()
-	client := pb.NewDomainClient(conn)
 
-	client.Event(ctx, &pb.DomainEventRequest{
-		Event: e,
-	})*/
+	for {
+		client := pb.NewNodeClient(conn)
+		stream, err := client.Alive(ctx)
+		if err == nil {
+			go func() {
+				for {
+					resp, err := stream.Recv()
+					if err == io.EOF || err != nil {
+						log.Println("🔌 Connexion fermée par le serveur")
+						break
+					} else {
+						nodeStore := deevirt_schema.NodeStore{}
+						json.Unmarshal(resp.Nodes, &nodeStore)
+						q.nodes = nodeStore
+					}
+				}
+			}()
+
+			for {
+				req := &pb.NodeAliveRequest{
+					Timestamp: timestamppb.New(time.Now()),
+				}
+
+				if err := stream.Send(req); err != nil {
+					if destroyCancel == nil {
+						destroyCtx, destroyCancel = context.WithTimeout(ctx, 10*time.Second)
+						go q.stonith(destroyCtx)
+					}
+					break
+				}
+
+				if destroyCancel != nil {
+					destroyCancel()
+					destroyCancel = nil
+				}
+
+				time.Sleep(10 * time.Second)
+			}
+
+		}
+
+		time.Sleep(1 * time.Second)
+	}
+
+}
+
+func (q qemu) lifecycle(c *go_libvirt.Connect, d *go_libvirt.Domain, event *go_libvirt.DomainEventLifecycle) {
+	if event.Event == go_libvirt.DOMAIN_EVENT_UNDEFINED {
+		// On ne s'intéresse pas à la suppression d'une configuration. Le manager est le seul point d'entré de valide !
+		return
+	}
+
+	fmt.Printf("%v\n", event)
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	domID, err := d.GetUUIDString()
+	if err != nil {
+		return
+	}
+
+	domState, _, err := d.GetState()
+	if err != nil {
+		return
+	}
+
+	res, err := json.Marshal(event)
+	if err != nil {
+		return
+	}
+
+	conn, err := grpc.NewClient(strings.Join(q.config.Manager.Peers, ","), grpc.WithTransportCredentials(insecure.NewCredentials()))
+	if err != nil {
+		return
+	}
+	defer conn.Close()
+
+	client := pb.NewDomainClient(conn)
+	client.Event(ctx, &pb.DomainEventRequest{
+		NodeId:   q.config.NodeID,
+		DomainId: domID,
+		Type:     "DomainEventLifecycle",
+		State:    int64(domState),
+		Event:    res,
+	})
+}
+
+func (q qemu) Events() {
+	q.clientVirt.DomainEventLifecycleRegister(nil, q.lifecycle)
 }
diff --git a/cmd/monitor/events/server.go b/cmd/monitor/events/server.go
index d1d4990..b74f61e 100644
--- a/cmd/monitor/events/server.go
+++ b/cmd/monitor/events/server.go
@@ -22,7 +22,11 @@ func Server() {
 
 	conn.SetKeepAlive(5, 3)
 
-	conn.DomainQemuMonitorEventRegister(nil, "(.*)", QemuEvents, libvirt.CONNECT_DOMAIN_QEMU_MONITOR_EVENT_REGISTER_REGEX)
+	q := NewQemu(conn)
+	q.Events()
+	go q.heartbeat()
+
+	//conn.DomainQemuMonitorEventRegister(nil, "(.*)", QemuEvents, libvirt.CONNECT_DOMAIN_QEMU_MONITOR_EVENT_REGISTER_REGEX)
 
 	for {
 		libvirt.EventRunDefaultImpl()
diff --git a/go.sum b/go.sum
index ff4d679..d85de87 100644
--- a/go.sum
+++ b/go.sum
@@ -231,8 +231,6 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
 golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
-golang.org/x/oauth2 v0.26.0 h1:afQXWNNaeC4nvZ0Ed9XvCCzXM6UHJG7iCg0W4fPqSBE=
-golang.org/x/oauth2 v0.26.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/oauth2 v0.27.0 h1:da9Vo7/tDv5RH/7nZDz1eMGS/q1Vv1N/7FCrBhI9I3M=
 golang.org/x/oauth2 v0.27.0/go.mod h1:onh5ek6nERTohokkhCD/y2cV4Do3fxFHFuAejCkRWT8=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
diff --git a/pkg/api/domain/domain.go b/pkg/api/domain/domain.go
index efad7fa..7c77d5d 100644
--- a/pkg/api/domain/domain.go
+++ b/pkg/api/domain/domain.go
@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
-	"regexp"
 	"time"
 
 	"go.uber.org/zap"
@@ -17,6 +16,7 @@ import (
 	"deevirt.fr/compute/pkg/api/raft"
 	"deevirt.fr/compute/pkg/config"
 	"deevirt.fr/compute/pkg/scheduler"
+	deevirt_schema "deevirt.fr/compute/pkg/schema/deevirt"
 )
 
 type Domain struct {
@@ -27,7 +27,7 @@ type Domain struct {
 }
 
 func (d *Domain) connectNode(NodeId string) (*libvirt.Connect, error) {
-	var jCluster raft.NodeStore
+	var jCluster deevirt_schema.NodeStore
 	cluster, _ := d.Store.Get("/etc/libvirt/cluster")
 	json.Unmarshal(cluster, &jCluster)
 
@@ -51,7 +51,7 @@ func (d *Domain) connectDomain(ctx context.Context, domainID string) (string, *l
 		DomainId: domainID,
 	})
 
-	var jCluster raft.NodeStore
+	var jCluster deevirt_schema.NodeStore
 	cluster, _ := d.Store.Get("/etc/libvirt/cluster")
 	json.Unmarshal(cluster, &jCluster)
 
@@ -61,58 +61,60 @@ func (d *Domain) connectDomain(ctx context.Context, domainID string) (string, *l
 }
 
 func (d *Domain) List(ctx context.Context, in *proto.DomainListAllRequest) (*proto.DomainListAllResponse, error) {
-	test, _ := d.Store.Ls("/etc/libvirt/qemu", raft.LsOptions{
-		Recursive: true,
+	domainsListResponse := []*proto.DomainListResponse{}
+
+	domains, err := d.Store.Ls("/etc/libvirt/domain", raft.LsOptions{
+		Recursive: false,
 		Data:      true,
 	})
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "Error read a store %v", err)
+	}
 
-	domains := []*proto.DomainListResponse{}
+	for domId, data := range domains {
+		domData := deevirt_schema.DomainStore{}
+		json.Unmarshal(data, &domData)
 
-	for k, v := range test {
-		re := regexp.MustCompile("([^/]+)/([^/]+)")
-		matches := re.FindStringSubmatch(k)
-		if matches != nil {
-			var dStore raft.DomainStore
-			json.Unmarshal(v, &dStore)
+		nodeData, _ := d.Store.Get(fmt.Sprintf("/etc/libvirt/%s/%s/%s", domData.Type, domData.NodeId, domId))
+		domNodeData := deevirt_schema.DomainToNodeStore{}
+		json.Unmarshal(nodeData, &domNodeData)
 
-			domains = append(domains, &proto.DomainListResponse{
-				NodeId:   matches[1],
-				DomainId: matches[2],
-				Config:   dStore.Config,
-				State:    int64(dStore.State),
-			})
-		}
+		domainsListResponse = append(domainsListResponse, &proto.DomainListResponse{
+			NodeId:   domData.NodeId,
+			DomainId: domId,
+			Config:   string(domData.Config),
+			State:    int64(domNodeData.State),
+		})
 	}
 
 	return &proto.DomainListAllResponse{
-		Domains: domains,
+		Domains: domainsListResponse,
 	}, nil
 }
 
-func (d *Domain) Get(ctx context.Context, in *proto.DomainListRequest) (*proto.DomainListResponse, error) {
-	dom, _ := d.Store.Ls("/etc/libvirt/qemu", raft.LsOptions{
-		Recursive: true,
-		Data:      false,
-	})
+func (d *Domain) Get(ctx context.Context, req *proto.DomainListRequest) (*proto.DomainListResponse, error) {
+	domainsListResponse := proto.DomainListResponse{}
 
-	for k := range dom {
-		re := regexp.MustCompile("([^/]+)/([^/]+)")
-		matches := re.FindStringSubmatch(k)
-		if matches != nil && matches[2] == in.DomainId {
-			var dStore raft.DomainStore
-			data, _ := d.Store.Get(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", matches[1], matches[2]))
-			json.Unmarshal(data, &dStore)
-
-			return &proto.DomainListResponse{
-				NodeId:   matches[1],
-				DomainId: matches[2],
-				Config:   dStore.Config,
-				State:    int64(dStore.State),
-			}, nil
-		}
+	domain, err := d.Store.Get(fmt.Sprintf("/etc/libvirt/domain/%s", req.DomainId))
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "Error read a store %v", err)
 	}
 
-	return &proto.DomainListResponse{}, nil
+	domData := deevirt_schema.DomainStore{}
+	json.Unmarshal(domain, &domData)
+
+	nodeData, _ := d.Store.Get(fmt.Sprintf("/etc/libvirt/%s/%s/%s", domData.Type, domData.NodeId, req.DomainId))
+	domNodeData := deevirt_schema.DomainToNodeStore{}
+	json.Unmarshal(nodeData, &domNodeData)
+
+	domainsListResponse = proto.DomainListResponse{
+		NodeId:   domData.NodeId,
+		DomainId: req.DomainId,
+		Config:   string(domData.Config),
+		State:    int64(domNodeData.State),
+	}
+
+	return &domainsListResponse, nil
 }
 
 func (d *Domain) Migrate(in *proto.DomainMigrateRequest, stream proto.Domain_MigrateServer) error {
@@ -134,49 +136,40 @@ func (d *Domain) Migrate(in *proto.DomainMigrateRequest, stream proto.Domain_Mig
 		return status.Errorf(codes.Internal, "Connexion error to libvirt %v", err)
 	}
 
-	res, err := s.GetTopNode(1)
+	topNode, err := s.GetTopNode(1)
 	if err != nil {
 		return status.Errorf(codes.Internal, "Connexion error to libvirt %v", err)
 	}
+	newNode := topNode[0]
+
+	if nodeID == newNode.NodeID {
+		d.Logger.Sugar().Errorf("Attempt to migrate guest to the same host %v", newNode.NodeID)
+		return status.Errorf(codes.Internal, "Attempt to migrate guest to the same host %v", newNode.NodeID)
+	}
 
 	ctx1, cancel := context.WithCancel(context.Background())
-	ch := make(chan []byte)
 
 	migrate := func(cancel context.CancelFunc) {
 		defer cancel()
 
-		c_new, err := d.connectNode(res[0].NodeID)
+		c_new, err := d.connectNode(newNode.NodeID)
 		if err != nil {
+			d.Store.Delete(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", newNode.NodeID, in.DomainId))
 			d.Logger.Sugar().Infof("Connexion error to libvirt %v", err.Error())
 			return
 		}
 		defer c_new.Close()
-
-		new_dom, err := dom.Migrate(c_new, libvirt.MIGRATE_LIVE|libvirt.MIGRATE_PERSIST_DEST|libvirt.MIGRATE_UNDEFINE_SOURCE, "", "", 0)
+		_, err = dom.Migrate(c_new, libvirt.MIGRATE_LIVE|libvirt.MIGRATE_PERSIST_DEST|libvirt.MIGRATE_UNDEFINE_SOURCE, "", "", 0)
 		if err != nil {
 			d.Logger.Sugar().Infof("Migration error %v", err.Error())
 			return
 		}
-
-		newDomConfig, _ := new_dom.GetXMLDesc(libvirt.DOMAIN_XML_INACTIVE)
-		newDomState, _, _ := new_dom.GetState()
-
-		new, _ := json.Marshal(raft.DomainStore{
-			Config:  newDomConfig,
-			State:   int(newDomState),
-			Migrate: false,
-		})
-
-		ch <- new
 	}
 
 	go migrate(cancel)
 
 	for {
 		select {
-		case result := <-ch:
-			d.Store.Set(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", res[0].NodeID, in.DomainId), result)
-			d.Store.Delete(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", nodeID, in.DomainId))
 		case <-ctx1.Done():
 			return nil
 		default:
diff --git a/pkg/api/domain/events.go b/pkg/api/domain/events.go
index 3e14720..26252a5 100644
--- a/pkg/api/domain/events.go
+++ b/pkg/api/domain/events.go
@@ -2,24 +2,114 @@ package domain
 
 import (
 	"context"
+	"encoding/json"
+	"encoding/xml"
+	"fmt"
+	"log"
+	"strings"
 
+	"deevirt.fr/compute/pkg/amqp"
 	"deevirt.fr/compute/pkg/api/proto"
+	"deevirt.fr/compute/pkg/schema"
+	deevirt_schema "deevirt.fr/compute/pkg/schema/deevirt"
 	"libvirt.org/go/libvirt"
 )
 
-type Events struct {
-	NodeID       string
-	CompanyID    string
-	DatacenterID string
-	Config       []byte
-	DomainID     string
-	State        int
-	Event        *libvirt.DomainQemuMonitorEvent
-}
-
 type EventsDetail map[string]string
 
+func (d *Domain) domainEventLifecycle(nodeId string, domainId string, state int64, event *libvirt.DomainEventLifecycle) {
+	d.Logger.Sugar().Infof("%s => %s: Evènement %v", nodeId, domainId, event)
+
+	domStore := deevirt_schema.DomainStore{}
+	domData, err := d.Store.Get(fmt.Sprintf("/etc/libvirt/domain/%s", domainId))
+	if err != nil || len(domData) == 0 {
+		d.Logger.Sugar().Errorf("Critique !!, la VM %s n'existe pas ou comporte une erreur importante !", domainId)
+	}
+	json.Unmarshal(domData, &domStore)
+
+	switch event.Event {
+	case libvirt.DOMAIN_EVENT_DEFINED:
+		// Changement de noeud !
+		oldNodeId := strings.Clone(domStore.NodeId)
+		dom2node, _ := json.Marshal(deevirt_schema.DomainToNodeStore{
+			State: int(state),
+		})
+		d.Store.Set(fmt.Sprintf("/etc/libvirt/domain/qemu/%s/%s", nodeId, domainId), dom2node)
+
+		domStore.NodeId = nodeId
+		dom2store, _ := json.Marshal(domStore)
+		d.Store.Set(fmt.Sprintf("/etc/libvirt/domain/%s", domainId), dom2store)
+
+		println(oldNodeId)
+
+		d.Store.Delete(fmt.Sprintf("/etc/libvirt/domain/qemu/%s/%s", oldNodeId, domainId))
+	case libvirt.DOMAIN_EVENT_STARTED:
+		switch event.Detail {
+		case int(libvirt.DOMAIN_EVENT_STARTED_MIGRATED):
+			// On ne fait rien, migration en cours
+			return
+		}
+	case libvirt.DOMAIN_EVENT_SUSPENDED:
+		switch event.Detail {
+		case int(libvirt.DOMAIN_EVENT_SUSPENDED_MIGRATED):
+			// On ne fait rien, migration en cours
+			return
+		}
+	case libvirt.DOMAIN_EVENT_RESUMED:
+		switch event.Detail {
+		case int(libvirt.DOMAIN_EVENT_RESUMED_MIGRATED):
+			// On ne fait rien, migration en cours
+			return
+		}
+	}
+
+	// MAJ de l'état
+	nodeData, _ := d.Store.Get(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", nodeId, domainId))
+	domNodeData := deevirt_schema.DomainToNodeStore{}
+	json.Unmarshal(nodeData, &domNodeData)
+
+	domNodeData.State = int(state)
+	dom2node, _ := json.Marshal(domNodeData)
+	d.Store.Set(fmt.Sprintf("/etc/libvirt/domain/qemu/%s/%s", nodeId, domainId), dom2node)
+
+	// AMQP - On envoi l'évènement brut
+	e, _ := json.Marshal(struct {
+		Type  string
+		State int
+	}{
+		Type:  "DomainState",
+		State: int(state),
+	})
+
+	desc := schema.Domain{}
+	err = xml.Unmarshal([]byte(domStore.Config), &desc)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	a, _ := amqp.NewAMQP()
+	a.Publisher("vmcenter",
+		"events."+desc.Metadata.DeevirtInstance.DeevirtCompanyID+
+			"."+desc.Metadata.DeevirtInstance.DeevirtDatacenterID+
+			"."+domainId,
+		e)
+	defer a.Close()
+}
+
 func (d *Domain) Event(ctx context.Context, req *proto.DomainEventRequest) (*proto.DomainEventResponse, error) {
+	switch req.Type {
+	case "DomainEventLifecycle":
+		event := libvirt.DomainEventLifecycle{}
+		if json.Unmarshal(req.Event, &event) == nil {
+			d.domainEventLifecycle(req.NodeId, req.DomainId, req.State, &event)
+		}
+	}
+
+	/*events := Events{
+		NodeID:   req.DomainId,
+		DomainID: req.DomainId,
+		Event:    e,
+	}*/
+
 	/*var events Events
 
 	err := json.Unmarshal(req.Event, &events)
diff --git a/pkg/api/node.go b/pkg/api/node.go
deleted file mode 100644
index 8d9c07c..0000000
--- a/pkg/api/node.go
+++ /dev/null
@@ -1,44 +0,0 @@
-package api
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-
-	"google.golang.org/protobuf/types/known/emptypb"
-
-	"deevirt.fr/compute/pkg/api/proto"
-	"deevirt.fr/compute/pkg/api/raft"
-	"deevirt.fr/compute/pkg/config"
-)
-
-type Node struct {
-	Config *config.Config
-	Store  *raft.Store
-	proto.UnimplementedNodeServer
-}
-
-func (d *Node) LibvirtQemu(ctx context.Context, in *proto.NodeLibvirtQemuRequest) (*emptypb.Empty, error) {
-	node := []struct {
-		Uuid    string `json:"uuid"`
-		Config  string `json:"config"`
-		State   int    `json:"state"`
-		Migrate bool   `json:"migrate"`
-	}{}
-
-	err := json.Unmarshal(in.Domains, &node)
-	if err != nil {
-		fmt.Println("Erreur:", err)
-	}
-
-	/*for _, n := range node {
-		fmt.Printf("%v", n)
-	}*/
-
-	d.Store.Set(fmt.Sprintf("/etc/libvirt/qemu/%s/", d.Config.NodeID), in.Domains)
-
-	t, _ := d.Store.Get(fmt.Sprintf("/etc/libvirt/qemu/%s/", d.Config.NodeID))
-	fmt.Printf("%v", t)
-
-	return &emptypb.Empty{}, nil
-}
diff --git a/pkg/api/node/node.go b/pkg/api/node/node.go
new file mode 100644
index 0000000..4355e05
--- /dev/null
+++ b/pkg/api/node/node.go
@@ -0,0 +1,44 @@
+package node
+
+import (
+	"encoding/json"
+	"io"
+	"log"
+
+	"deevirt.fr/compute/pkg/api/proto"
+	"deevirt.fr/compute/pkg/api/raft"
+	"deevirt.fr/compute/pkg/config"
+	deevirt_schema "deevirt.fr/compute/pkg/schema/deevirt"
+)
+
+type Node struct {
+	Config *config.Config
+	Store  *raft.Store
+	proto.UnimplementedNodeServer
+}
+
+func (n *Node) Alive(stream proto.Node_AliveServer) error {
+	println("Alive")
+
+	for {
+		req, err := stream.Recv()
+		if err == io.EOF || err != nil {
+			log.Println("Client closed the connection")
+			return nil
+		}
+
+		log.Printf("Received heartbeat: %v", req)
+
+		cluster := deevirt_schema.NodeStore{}
+		res, _ := n.Store.Get("/etc/libvirt/cluster")
+		json.Unmarshal(res, &cluster)
+		cluster[n.Config.NodeID].LastUpdate = req.Timestamp
+
+		d, _ := json.Marshal(cluster)
+		n.Store.Set("/etc/libvirt/cluster", d)
+
+		stream.Send(&proto.NodeAliveQemuResponse{
+			Nodes: res,
+		})
+	}
+}
diff --git a/pkg/api/proto/domain.pb.go b/pkg/api/proto/domain.pb.go
index 578f764..0f30aa4 100644
--- a/pkg/api/proto/domain.pb.go
+++ b/pkg/api/proto/domain.pb.go
@@ -89,7 +89,11 @@ type DomainEventRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Event []byte `protobuf:"bytes,1,opt,name=event,proto3" json:"event,omitempty"`
+	NodeId   string `protobuf:"bytes,1,opt,name=node_id,json=nodeId,proto3" json:"node_id,omitempty"`
+	DomainId string `protobuf:"bytes,2,opt,name=domain_id,json=domainId,proto3" json:"domain_id,omitempty"`
+	Type     string `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
+	State    int64  `protobuf:"varint,4,opt,name=state,proto3" json:"state,omitempty"`
+	Event    []byte `protobuf:"bytes,5,opt,name=event,proto3" json:"event,omitempty"`
 }
 
 func (x *DomainEventRequest) Reset() {
@@ -124,6 +128,34 @@ func (*DomainEventRequest) Descriptor() ([]byte, []int) {
 	return file_proto_domain_proto_rawDescGZIP(), []int{0}
 }
 
+func (x *DomainEventRequest) GetNodeId() string {
+	if x != nil {
+		return x.NodeId
+	}
+	return ""
+}
+
+func (x *DomainEventRequest) GetDomainId() string {
+	if x != nil {
+		return x.DomainId
+	}
+	return ""
+}
+
+func (x *DomainEventRequest) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+func (x *DomainEventRequest) GetState() int64 {
+	if x != nil {
+		return x.State
+	}
+	return 0
+}
+
 func (x *DomainEventRequest) GetEvent() []byte {
 	if x != nil {
 		return x.Event
@@ -930,119 +962,126 @@ var File_proto_domain_proto protoreflect.FileDescriptor
 
 var file_proto_domain_proto_rawDesc = []byte{
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+	0x33,
 }
 
 var (
diff --git a/pkg/api/proto/domain.proto b/pkg/api/proto/domain.proto
index 36925e3..a0c22f7 100644
--- a/pkg/api/proto/domain.proto
+++ b/pkg/api/proto/domain.proto
@@ -19,7 +19,11 @@ service Domain {
 }
 
 message DomainEventRequest {
-  bytes event = 1;
+  string node_id = 1;
+  string domain_id = 2;
+  string type = 3;
+  int64 state = 4;
+  bytes event = 5;
 }
 
 message DomainEventResponse {}
diff --git a/pkg/api/proto/node.pb.go b/pkg/api/proto/node.pb.go
index 7fae0d2..eea0a77 100644
--- a/pkg/api/proto/node.pb.go
+++ b/pkg/api/proto/node.pb.go
@@ -9,7 +9,7 @@ package proto
 import (
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	emptypb "google.golang.org/protobuf/types/known/emptypb"
+	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
 	reflect "reflect"
 	sync "sync"
 )
@@ -21,16 +21,16 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type NodeLibvirtQemuRequest struct {
+type NodeAliveRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Domains []byte `protobuf:"bytes,1,opt,name=domains,proto3" json:"domains,omitempty"`
+	Timestamp *timestamppb.Timestamp `protobuf:"bytes,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
 }
 
-func (x *NodeLibvirtQemuRequest) Reset() {
-	*x = NodeLibvirtQemuRequest{}
+func (x *NodeAliveRequest) Reset() {
+	*x = NodeAliveRequest{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_proto_node_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -38,13 +38,13 @@ func (x *NodeLibvirtQemuRequest) Reset() {
 	}
 }
 
-func (x *NodeLibvirtQemuRequest) String() string {
+func (x *NodeAliveRequest) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*NodeLibvirtQemuRequest) ProtoMessage() {}
+func (*NodeAliveRequest) ProtoMessage() {}
 
-func (x *NodeLibvirtQemuRequest) ProtoReflect() protoreflect.Message {
+func (x *NodeAliveRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_proto_node_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -56,26 +56,28 @@ func (x *NodeLibvirtQemuRequest) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use NodeLibvirtQemuRequest.ProtoReflect.Descriptor instead.
-func (*NodeLibvirtQemuRequest) Descriptor() ([]byte, []int) {
+// Deprecated: Use NodeAliveRequest.ProtoReflect.Descriptor instead.
+func (*NodeAliveRequest) Descriptor() ([]byte, []int) {
 	return file_proto_node_proto_rawDescGZIP(), []int{0}
 }
 
-func (x *NodeLibvirtQemuRequest) GetDomains() []byte {
+func (x *NodeAliveRequest) GetTimestamp() *timestamppb.Timestamp {
 	if x != nil {
-		return x.Domains
+		return x.Timestamp
 	}
 	return nil
 }
 
-type NodeLibvirtQemuResponse struct {
+type NodeAliveQemuResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
+
+	Nodes []byte `protobuf:"bytes,1,opt,name=nodes,proto3" json:"nodes,omitempty"`
 }
 
-func (x *NodeLibvirtQemuResponse) Reset() {
-	*x = NodeLibvirtQemuResponse{}
+func (x *NodeAliveQemuResponse) Reset() {
+	*x = NodeAliveQemuResponse{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_proto_node_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -83,13 +85,13 @@ func (x *NodeLibvirtQemuResponse) Reset() {
 	}
 }
 
-func (x *NodeLibvirtQemuResponse) String() string {
+func (x *NodeAliveQemuResponse) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*NodeLibvirtQemuResponse) ProtoMessage() {}
+func (*NodeAliveQemuResponse) ProtoMessage() {}
 
-func (x *NodeLibvirtQemuResponse) ProtoReflect() protoreflect.Message {
+func (x *NodeAliveQemuResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_proto_node_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -101,29 +103,39 @@ func (x *NodeLibvirtQemuResponse) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use NodeLibvirtQemuResponse.ProtoReflect.Descriptor instead.
-func (*NodeLibvirtQemuResponse) Descriptor() ([]byte, []int) {
+// Deprecated: Use NodeAliveQemuResponse.ProtoReflect.Descriptor instead.
+func (*NodeAliveQemuResponse) Descriptor() ([]byte, []int) {
 	return file_proto_node_proto_rawDescGZIP(), []int{1}
 }
 
+func (x *NodeAliveQemuResponse) GetNodes() []byte {
+	if x != nil {
+		return x.Nodes
+	}
+	return nil
+}
+
 var File_proto_node_proto protoreflect.FileDescriptor
 
 var file_proto_node_proto_rawDesc = []byte{
 	0x0a, 0x10, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x6e, 0x6f, 0x64, 0x65, 0x2e, 0x70, 0x72, 0x6f,
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-	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
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+	0x12, 0x38, 0x0a, 0x09, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x52,
+	0x09, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x22, 0x2d, 0x0a, 0x15, 0x4e, 0x6f,
+	0x64, 0x65, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x51, 0x65, 0x6d, 0x75, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x6e, 0x6f, 0x64, 0x65, 0x73, 0x18, 0x01, 0x20, 0x01,
+	0x28, 0x0c, 0x52, 0x05, 0x6e, 0x6f, 0x64, 0x65, 0x73, 0x32, 0x50, 0x0a, 0x04, 0x4e, 0x6f, 0x64,
+	0x65, 0x12, 0x48, 0x0a, 0x05, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x12, 0x19, 0x2e, 0x64, 0x65, 0x65,
+	0x76, 0x69, 0x72, 0x74, 0x2e, 0x4e, 0x6f, 0x64, 0x65, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1e, 0x2e, 0x64, 0x65, 0x65, 0x76, 0x69, 0x72, 0x74, 0x2e,
+	0x4e, 0x6f, 0x64, 0x65, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x51, 0x65, 0x6d, 0x75, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x28, 0x01, 0x30, 0x01, 0x42, 0x09, 0x5a, 0x07, 0x2e,
+	0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -140,18 +152,19 @@ func file_proto_node_proto_rawDescGZIP() []byte {
 
 var file_proto_node_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_proto_node_proto_goTypes = []interface{}{
-	(*NodeLibvirtQemuRequest)(nil),  // 0: deevirt.NodeLibvirtQemuRequest
-	(*NodeLibvirtQemuResponse)(nil), // 1: deevirt.NodeLibvirtQemuResponse
-	(*emptypb.Empty)(nil),           // 2: google.protobuf.Empty
+	(*NodeAliveRequest)(nil),      // 0: deevirt.NodeAliveRequest
+	(*NodeAliveQemuResponse)(nil), // 1: deevirt.NodeAliveQemuResponse
+	(*timestamppb.Timestamp)(nil), // 2: google.protobuf.Timestamp
 }
 var file_proto_node_proto_depIdxs = []int32{
-	0, // 0: deevirt.Node.LibvirtQemu:input_type -> deevirt.NodeLibvirtQemuRequest
-	2, // 1: deevirt.Node.LibvirtQemu:output_type -> google.protobuf.Empty
-	1, // [1:2] is the sub-list for method output_type
-	0, // [0:1] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
+	2, // 0: deevirt.NodeAliveRequest.timestamp:type_name -> google.protobuf.Timestamp
+	0, // 1: deevirt.Node.Alive:input_type -> deevirt.NodeAliveRequest
+	1, // 2: deevirt.Node.Alive:output_type -> deevirt.NodeAliveQemuResponse
+	2, // [2:3] is the sub-list for method output_type
+	1, // [1:2] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
 }
 
 func init() { file_proto_node_proto_init() }
@@ -161,7 +174,7 @@ func file_proto_node_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_proto_node_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*NodeLibvirtQemuRequest); i {
+			switch v := v.(*NodeAliveRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -173,7 +186,7 @@ func file_proto_node_proto_init() {
 			}
 		}
 		file_proto_node_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*NodeLibvirtQemuResponse); i {
+			switch v := v.(*NodeAliveQemuResponse); i {
 			case 0:
 				return &v.state
 			case 1:
diff --git a/pkg/api/proto/node.proto b/pkg/api/proto/node.proto
index d84a331..06555d2 100644
--- a/pkg/api/proto/node.proto
+++ b/pkg/api/proto/node.proto
@@ -1,16 +1,18 @@
 syntax="proto3";
-import "google/protobuf/empty.proto";
+import "google/protobuf/timestamp.proto";
 
 option go_package = "./proto";
 package deevirt;
 
 // The greeting service definition.
 service Node {
-    rpc LibvirtQemu (NodeLibvirtQemuRequest) returns(google.protobuf.Empty) {}
+    rpc Alive (stream NodeAliveRequest) returns(stream NodeAliveQemuResponse) {}
 }
 
-message NodeLibvirtQemuRequest {
-  bytes domains = 1;
+message NodeAliveRequest {
+  google.protobuf.Timestamp timestamp = 1;
 }
 
-message NodeLibvirtQemuResponse {}
+message NodeAliveQemuResponse {
+  bytes nodes = 1;
+}
diff --git a/pkg/api/proto/node_grpc.pb.go b/pkg/api/proto/node_grpc.pb.go
index f811981..9060133 100644
--- a/pkg/api/proto/node_grpc.pb.go
+++ b/pkg/api/proto/node_grpc.pb.go
@@ -11,7 +11,6 @@ import (
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
 	status "google.golang.org/grpc/status"
-	emptypb "google.golang.org/protobuf/types/known/emptypb"
 )
 
 // This is a compile-time assertion to ensure that this generated file
@@ -20,7 +19,7 @@ import (
 const _ = grpc.SupportPackageIsVersion9
 
 const (
-	Node_LibvirtQemu_FullMethodName = "/deevirt.Node/LibvirtQemu"
+	Node_Alive_FullMethodName = "/deevirt.Node/Alive"
 )
 
 // NodeClient is the client API for Node service.
@@ -29,7 +28,7 @@ const (
 //
 // The greeting service definition.
 type NodeClient interface {
-	LibvirtQemu(ctx context.Context, in *NodeLibvirtQemuRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
+	Alive(ctx context.Context, opts ...grpc.CallOption) (grpc.BidiStreamingClient[NodeAliveRequest, NodeAliveQemuResponse], error)
 }
 
 type nodeClient struct {
@@ -40,23 +39,26 @@ func NewNodeClient(cc grpc.ClientConnInterface) NodeClient {
 	return &nodeClient{cc}
 }
 
-func (c *nodeClient) LibvirtQemu(ctx context.Context, in *NodeLibvirtQemuRequest, opts ...grpc.CallOption) (*emptypb.Empty, error) {
+func (c *nodeClient) Alive(ctx context.Context, opts ...grpc.CallOption) (grpc.BidiStreamingClient[NodeAliveRequest, NodeAliveQemuResponse], error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(emptypb.Empty)
-	err := c.cc.Invoke(ctx, Node_LibvirtQemu_FullMethodName, in, out, cOpts...)
+	stream, err := c.cc.NewStream(ctx, &Node_ServiceDesc.Streams[0], Node_Alive_FullMethodName, cOpts...)
 	if err != nil {
 		return nil, err
 	}
-	return out, nil
+	x := &grpc.GenericClientStream[NodeAliveRequest, NodeAliveQemuResponse]{ClientStream: stream}
+	return x, nil
 }
 
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type Node_AliveClient = grpc.BidiStreamingClient[NodeAliveRequest, NodeAliveQemuResponse]
+
 // NodeServer is the server API for Node service.
 // All implementations must embed UnimplementedNodeServer
 // for forward compatibility.
 //
 // The greeting service definition.
 type NodeServer interface {
-	LibvirtQemu(context.Context, *NodeLibvirtQemuRequest) (*emptypb.Empty, error)
+	Alive(grpc.BidiStreamingServer[NodeAliveRequest, NodeAliveQemuResponse]) error
 	mustEmbedUnimplementedNodeServer()
 }
 
@@ -67,8 +69,8 @@ type NodeServer interface {
 // pointer dereference when methods are called.
 type UnimplementedNodeServer struct{}
 
-func (UnimplementedNodeServer) LibvirtQemu(context.Context, *NodeLibvirtQemuRequest) (*emptypb.Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method LibvirtQemu not implemented")
+func (UnimplementedNodeServer) Alive(grpc.BidiStreamingServer[NodeAliveRequest, NodeAliveQemuResponse]) error {
+	return status.Errorf(codes.Unimplemented, "method Alive not implemented")
 }
 func (UnimplementedNodeServer) mustEmbedUnimplementedNodeServer() {}
 func (UnimplementedNodeServer) testEmbeddedByValue()              {}
@@ -91,36 +93,27 @@ func RegisterNodeServer(s grpc.ServiceRegistrar, srv NodeServer) {
 	s.RegisterService(&Node_ServiceDesc, srv)
 }
 
-func _Node_LibvirtQemu_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(NodeLibvirtQemuRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(NodeServer).LibvirtQemu(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: Node_LibvirtQemu_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(NodeServer).LibvirtQemu(ctx, req.(*NodeLibvirtQemuRequest))
-	}
-	return interceptor(ctx, in, info, handler)
+func _Node_Alive_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(NodeServer).Alive(&grpc.GenericServerStream[NodeAliveRequest, NodeAliveQemuResponse]{ServerStream: stream})
 }
 
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type Node_AliveServer = grpc.BidiStreamingServer[NodeAliveRequest, NodeAliveQemuResponse]
+
 // Node_ServiceDesc is the grpc.ServiceDesc for Node service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
 var Node_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "deevirt.Node",
 	HandlerType: (*NodeServer)(nil),
-	Methods: []grpc.MethodDesc{
+	Methods:     []grpc.MethodDesc{},
+	Streams: []grpc.StreamDesc{
 		{
-			MethodName: "LibvirtQemu",
-			Handler:    _Node_LibvirtQemu_Handler,
+			StreamName:    "Alive",
+			Handler:       _Node_Alive_Handler,
+			ServerStreams: true,
+			ClientStreams: true,
 		},
 	},
-	Streams:  []grpc.StreamDesc{},
 	Metadata: "proto/node.proto",
 }
diff --git a/pkg/api/raft/node.go b/pkg/api/raft/node.go
index b936379..ce1a0a0 100644
--- a/pkg/api/raft/node.go
+++ b/pkg/api/raft/node.go
@@ -10,6 +10,7 @@ import (
 	"libvirt.org/go/libvirt"
 
 	etcd_client "deevirt.fr/compute/pkg/etcd"
+	deevirt_schema "deevirt.fr/compute/pkg/schema/deevirt"
 	//"deevirt.fr/compute/pkg/scheduler"
 )
 
@@ -23,22 +24,19 @@ type RaftNode struct {
 
 func (n *RaftNode) init() {
 	println("bootstrap :")
-	nodes := make(NodeStore)
+	nodes := make(deevirt_schema.NodeStore)
 
 	// Récupération des Noeuds ID
 	etcd, _ := etcd_client.New(n.Store.conf.EtcdURI)
 	defer etcd.Close()
 
 	for key, value := range etcd_client.GetNodes(etcd, n.Store.conf.ClusterID) {
-		nodes[key] = &NodeStoreInfo{
-			IpManagement: value.IpManagement,
-			Scoring:      0,
-		}
-		println(key)
-		println(value.IpManagement)
-
 		var libvirt_uri string
 
+		nodes[key] = &deevirt_schema.NodeStoreInfo{
+			IpManagement: value.IpManagement,
+		}
+
 		if n.Store.conf.LibvirtTLS {
 			libvirt_uri = fmt.Sprintf("qemu+tls://%s/system", value.IpManagement)
 		} else {
@@ -57,15 +55,17 @@ func (n *RaftNode) init() {
 			uuid, _ := domain.GetUUIDString()
 			state, _, _ := domain.GetState()
 
-			d, _ := json.Marshal(struct {
-				Config  string `json:"config"`
-				State   int    `json:"state"`
-				Migrate bool   `json:"Migrate"`
-			}{
-				conf, int(state), false,
+			dStore, _ := json.Marshal(deevirt_schema.DomainStore{
+				NodeId: key,
+				Type:   "qemu",
+				Config: []byte(conf),
 			})
+			n.Store.Set(fmt.Sprintf("/etc/libvirt/domain/%s", uuid), dStore)
 
-			n.Store.Set(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", key, uuid), d)
+			dDomainToNode, _ := json.Marshal(deevirt_schema.DomainToNodeStore{
+				State: int(state),
+			})
+			n.Store.Set(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", key, uuid), dDomainToNode)
 		}
 	}
 
diff --git a/pkg/api/raft/schema.go b/pkg/api/raft/schema.go
index 100b77d..ee5650d 100644
--- a/pkg/api/raft/schema.go
+++ b/pkg/api/raft/schema.go
@@ -1,6 +1,6 @@
 package raft
 
-type NodeStore map[string]*NodeStoreInfo
+/*type NodeStore map[string]*NodeStoreInfo
 
 type NodeStoreInfo struct {
 	IpManagement string
@@ -17,7 +17,7 @@ type DomainStore struct {
 type SchemaDomain struct {
 	Config string `json:"config"`
 	State  int    `json:"state"`
-}
+}*/
 
 // Metrics
 type DomainUsage struct {
diff --git a/pkg/api/raft/worker.go b/pkg/api/raft/worker.go
index 8cc1ac6..ec45c6f 100644
--- a/pkg/api/raft/worker.go
+++ b/pkg/api/raft/worker.go
@@ -10,11 +10,11 @@ import (
 	"time"
 
 	"go.uber.org/zap"
-	go_libvirt "libvirt.org/go/libvirt"
 
 	"deevirt.fr/compute/pkg/api/libvirt"
 	"deevirt.fr/compute/pkg/config"
 	"deevirt.fr/compute/pkg/scheduler"
+	deevirt_schema "deevirt.fr/compute/pkg/schema/deevirt"
 )
 
 type Worker struct {
@@ -25,7 +25,7 @@ type Worker struct {
 	store *Store
 
 	config *config.Config
-	nodes  NodeStore
+	nodes  deevirt_schema.NodeStore
 	log    *zap.SugaredLogger
 }
 
@@ -89,7 +89,7 @@ func (w *Worker) Stop() {
 func (w *Worker) Migrate(wg *sync.WaitGroup, nodeID string, newNodeID string, domainID string) {
 	defer wg.Done()
 
-	c, err := libvirt.New(w.nodes[nodeID].IpManagement, w.store.conf.LibvirtTLS)
+	/*c, err := libvirt.New(w.nodes[nodeID].IpManagement, w.store.conf.LibvirtTLS)
 	if err != nil {
 		w.log.Infof("Connexion error to libvirt %v", err.Error())
 		return
@@ -118,14 +118,14 @@ func (w *Worker) Migrate(wg *sync.WaitGroup, nodeID string, newNodeID string, do
 	newDomConfig, _ := new_dom.GetXMLDesc(go_libvirt.DOMAIN_XML_INACTIVE)
 	newDomState, _, _ := new_dom.GetState()
 
-	new, _ := json.Marshal(DomainStore{
+	new, _ := json.Marshal(deevirt_schema.DomainStore{
 		Config:  newDomConfig,
 		State:   int(newDomState),
 		Migrate: false,
 	})
 
 	w.store.Set(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", newNodeID, domainID), new)
-	w.store.Delete(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", nodeID, domainID))
+	w.store.Delete(fmt.Sprintf("/etc/libvirt/qemu/%s/%s", nodeID, domainID))*/
 }
 
 /*
@@ -133,7 +133,7 @@ On controle périodiquement l'accessibilité à libvirt, indépendamment du prog
 Cette vérification assure un double controle pour la HA.
 */
 func (w *Worker) handleLibvirtControl() {
-	var nodes NodeStore
+	var nodes deevirt_schema.NodeStore
 	cluster, err := w.store.Get("/etc/libvirt/cluster")
 	if err != nil {
 		w.log.Errorf("Erreur lors de la récupération des données de cluster: %v", err)
@@ -152,18 +152,18 @@ func (w *Worker) handleLibvirtControl() {
 		c, err := libvirt.New(conf.IpManagement, w.store.conf.LibvirtTLS)
 		if err != nil {
 			w.log.Warnf("Impossible de créer la connexion libvirt pour %s: %v", conf.IpManagement, err)
-			conf.Alive = false
+			//conf.Alive = false
 			continue // Passer à l'élément suivant
 		}
 		defer c.Close() // Assurer la fermeture de la connexion à la fin
 
 		// Vérifier si le noeud est vivant
-		alive, err := c.IsAlive()
+		//alive, err := c.IsAlive()
 		if err != nil {
 			w.log.Warnf("Erreur lors de la vérification de la vie de %s: %v", conf.IpManagement, err)
-			conf.Alive = false
+			//conf.Alive = false
 		} else {
-			conf.Alive = alive
+			//conf.Alive = alive
 		}
 	}
 
@@ -230,7 +230,7 @@ func (w *Worker) handleNodeAlerts() error {
 }
 
 func (w *Worker) handleHAExecution(nodeID string) {
-	if w.nodes[nodeID].Alive {
+	/*if w.nodes[nodeID].Alive {
 		// L'information n'est pas cohérente, on ne fait rien
 		w.log.Infof("L'agent moniteur ne répond pas, mais le noeud reste fonctionnel")
 		return
@@ -287,7 +287,7 @@ func (w *Worker) handleHAExecution(nodeID string) {
 		}
 
 		w.log.Infof("HA of %s to %s for domain %s", nodeID, res[randomINode].NodeID, domId)
-	}
+	}*/
 	//_, err = c.DomainCreateXML(cDomStore.Config, go_libvirt.DOMAIN_START_VALIDATE)
 }
 
diff --git a/pkg/api/server.go b/pkg/api/server.go
index b01e8e0..ff2a94f 100644
--- a/pkg/api/server.go
+++ b/pkg/api/server.go
@@ -14,6 +14,8 @@ import (
 	"google.golang.org/grpc/reflection"
 
 	"deevirt.fr/compute/pkg/api/domain"
+	"deevirt.fr/compute/pkg/api/node"
+
 	pb "deevirt.fr/compute/pkg/api/proto"
 	"deevirt.fr/compute/pkg/api/raft"
 	"deevirt.fr/compute/pkg/config"
@@ -69,7 +71,7 @@ func Server() {
 	}
 
 	s := createGRPCServer(conf)
-	pb.RegisterNodeServer(s, &Node{
+	pb.RegisterNodeServer(s, &node.Node{
 		Config: conf,
 		Store:  r,
 	})
diff --git a/pkg/schema/deevirt/domain.go b/pkg/schema/deevirt/domain.go
new file mode 100644
index 0000000..3b29223
--- /dev/null
+++ b/pkg/schema/deevirt/domain.go
@@ -0,0 +1,12 @@
+package deevirt_schema
+
+// Schema dans le store
+type DomainStore struct {
+	Type   string `json:"type"`
+	NodeId string `json:"nodeID"`
+	Config []byte `json:"config"`
+}
+
+type DomainToNodeStore struct {
+	State int `json:"state"`
+}
diff --git a/pkg/schema/deevirt/node.go b/pkg/schema/deevirt/node.go
new file mode 100644
index 0000000..5cca9de
--- /dev/null
+++ b/pkg/schema/deevirt/node.go
@@ -0,0 +1,10 @@
+package deevirt_schema
+
+import "google.golang.org/protobuf/types/known/timestamppb"
+
+type NodeStore map[string]*NodeStoreInfo
+
+type NodeStoreInfo struct {
+	LastUpdate   *timestamppb.Timestamp
+	IpManagement string
+}
diff --git a/vendor/google.golang.org/protobuf/types/known/emptypb/empty.pb.go b/vendor/google.golang.org/protobuf/types/known/emptypb/empty.pb.go
deleted file mode 100644
index a5b8657..0000000
--- a/vendor/google.golang.org/protobuf/types/known/emptypb/empty.pb.go
+++ /dev/null
@@ -1,150 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: google/protobuf/empty.proto
-
-package emptypb
-
-import (
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-	unsafe "unsafe"
-)
-
-// A generic empty message that you can re-use to avoid defining duplicated
-// empty messages in your APIs. A typical example is to use it as the request
-// or the response type of an API method. For instance:
-//
-//	service Foo {
-//	  rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
-//	}
-type Empty struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
-}
-
-func (x *Empty) Reset() {
-	*x = Empty{}
-	mi := &file_google_protobuf_empty_proto_msgTypes[0]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *Empty) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Empty) ProtoMessage() {}
-
-func (x *Empty) ProtoReflect() protoreflect.Message {
-	mi := &file_google_protobuf_empty_proto_msgTypes[0]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Empty.ProtoReflect.Descriptor instead.
-func (*Empty) Descriptor() ([]byte, []int) {
-	return file_google_protobuf_empty_proto_rawDescGZIP(), []int{0}
-}
-
-var File_google_protobuf_empty_proto protoreflect.FileDescriptor
-
-var file_google_protobuf_empty_proto_rawDesc = string([]byte{
-	0x0a, 0x1b, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75,
-	0x66, 0x2f, 0x65, 0x6d, 0x70, 0x74, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0f, 0x67,
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-	0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x42, 0x0a,
-	0x45, 0x6d, 0x70, 0x74, 0x79, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x2e, 0x67, 0x6f,
-	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f, 0x72, 0x67, 0x2f,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x74, 0x79, 0x70, 0x65, 0x73, 0x2f, 0x6b,
-	0x6e, 0x6f, 0x77, 0x6e, 0x2f, 0x65, 0x6d, 0x70, 0x74, 0x79, 0x70, 0x62, 0xf8, 0x01, 0x01, 0xa2,
-	0x02, 0x03, 0x47, 0x50, 0x42, 0xaa, 0x02, 0x1e, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x50,
-	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x57, 0x65, 0x6c, 0x6c, 0x4b, 0x6e, 0x6f, 0x77,
-	0x6e, 0x54, 0x79, 0x70, 0x65, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-})
-
-var (
-	file_google_protobuf_empty_proto_rawDescOnce sync.Once
-	file_google_protobuf_empty_proto_rawDescData []byte
-)
-
-func file_google_protobuf_empty_proto_rawDescGZIP() []byte {
-	file_google_protobuf_empty_proto_rawDescOnce.Do(func() {
-		file_google_protobuf_empty_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_google_protobuf_empty_proto_rawDesc), len(file_google_protobuf_empty_proto_rawDesc)))
-	})
-	return file_google_protobuf_empty_proto_rawDescData
-}
-
-var file_google_protobuf_empty_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_google_protobuf_empty_proto_goTypes = []any{
-	(*Empty)(nil), // 0: google.protobuf.Empty
-}
-var file_google_protobuf_empty_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_google_protobuf_empty_proto_init() }
-func file_google_protobuf_empty_proto_init() {
-	if File_google_protobuf_empty_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: unsafe.Slice(unsafe.StringData(file_google_protobuf_empty_proto_rawDesc), len(file_google_protobuf_empty_proto_rawDesc)),
-			NumEnums:      0,
-			NumMessages:   1,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_google_protobuf_empty_proto_goTypes,
-		DependencyIndexes: file_google_protobuf_empty_proto_depIdxs,
-		MessageInfos:      file_google_protobuf_empty_proto_msgTypes,
-	}.Build()
-	File_google_protobuf_empty_proto = out.File
-	file_google_protobuf_empty_proto_goTypes = nil
-	file_google_protobuf_empty_proto_depIdxs = nil
-}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index c2890a7..deda170 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -288,7 +288,6 @@ google.golang.org/protobuf/types/descriptorpb
 google.golang.org/protobuf/types/gofeaturespb
 google.golang.org/protobuf/types/known/anypb
 google.golang.org/protobuf/types/known/durationpb
-google.golang.org/protobuf/types/known/emptypb
 google.golang.org/protobuf/types/known/timestamppb
 # gopkg.in/ini.v1 v1.67.0
 ## explicit