Add agent operations history and manual links

README.md

@@ -358,6 +358,17 @@ CPU и RAM с накопленным I/O, swap, PSI pressure, все посто
 Связи по PID и порту считаются подтверждёнными; совпадения только по названию
 помечаются как предположение.
 
+Для сложных reverse proxy и Docker-сетей в управлении сервисами можно сохранить
+ручную связь `сервис → агент/VMID → systemd/Docker/процесс → порт`. Она имеет
+приоритет над автоматическим определением и используется для группировки
+связанных уведомлений по первопричине.
+
+Dashboard хранит семь дней истории CPU, RAM, swap, PSI и файловых систем каждого
+агента. Из подробностей агента доступны только заранее разрешённые действия:
+перезапуск известной systemd-службы или Docker-контейнера, `reset-failed` и
+обновление списка пакетов. Агент не принимает произвольные shell-команды; каждое
+действие требует подтверждения в браузере и сохраняется в журнале управления.
+
 Откройте `Настройки → Агенты`, укажите адрес Dashboard, доступный из VM/LXC, и
 VMID. Кнопка создаст готовую команду установки. Одноразовый токен действует 15
 минут и после регистрации заменяется индивидуальным секретом агента.

agent.go

@@ -86,37 +86,38 @@ type AgentIssue struct {
 }
 
 type AgentReport struct {
-	Hostname         string            `json:"hostname"`
-	MachineID        string            `json:"machineId"`
-	Version          string            `json:"version"`
-	OS               string            `json:"os"`
-	Arch             string            `json:"arch"`
-	OSName           string            `json:"osName"`
-	Kernel           string            `json:"kernel"`
-	UptimeSeconds    int64             `json:"uptimeSeconds"`
-	Load1            float64           `json:"load1"`
-	CPUPercent       float64           `json:"cpuPercent"`
-	MemoryTotal      uint64            `json:"memoryTotal"`
-	MemoryUsed       uint64            `json:"memoryUsed"`
-	SwapTotal        uint64            `json:"swapTotal"`
-	SwapUsed         uint64            `json:"swapUsed"`
-	RootTotal        uint64            `json:"rootTotal"`
-	RootUsed         uint64            `json:"rootUsed"`
-	DockerAvailable  bool              `json:"dockerAvailable"`
-	DockerError      string            `json:"dockerError,omitempty"`
-	Containers       []AgentContainer  `json:"containers"`
-	Interfaces       []AgentInterface  `json:"interfaces"`
-	Services         []AgentService    `json:"services"`
-	Issues           []AgentIssue      `json:"issues"`
-	Processes        []AgentProcess    `json:"processes"`
-	Filesystems      []AgentFilesystem `json:"filesystems"`
-	ListenPorts      []AgentListenPort `json:"listenPorts"`
-	Pressure         AgentPressure     `json:"pressure"`
-	OOMKills         []AgentLog        `json:"oomKills"`
-	UpdatesAvailable int               `json:"updatesAvailable"`
-	RebootRequired   bool              `json:"rebootRequired"`
-	InventoryAt      int64             `json:"inventoryAt"`
-	CollectedAt      int64             `json:"collectedAt"`
+	Hostname         string              `json:"hostname"`
+	MachineID        string              `json:"machineId"`
+	Version          string              `json:"version"`
+	OS               string              `json:"os"`
+	Arch             string              `json:"arch"`
+	OSName           string              `json:"osName"`
+	Kernel           string              `json:"kernel"`
+	UptimeSeconds    int64               `json:"uptimeSeconds"`
+	Load1            float64             `json:"load1"`
+	CPUPercent       float64             `json:"cpuPercent"`
+	MemoryTotal      uint64              `json:"memoryTotal"`
+	MemoryUsed       uint64              `json:"memoryUsed"`
+	SwapTotal        uint64              `json:"swapTotal"`
+	SwapUsed         uint64              `json:"swapUsed"`
+	RootTotal        uint64              `json:"rootTotal"`
+	RootUsed         uint64              `json:"rootUsed"`
+	DockerAvailable  bool                `json:"dockerAvailable"`
+	DockerError      string              `json:"dockerError,omitempty"`
+	Containers       []AgentContainer    `json:"containers"`
+	Interfaces       []AgentInterface    `json:"interfaces"`
+	Services         []AgentService      `json:"services"`
+	Issues           []AgentIssue        `json:"issues"`
+	Processes        []AgentProcess      `json:"processes"`
+	Filesystems      []AgentFilesystem   `json:"filesystems"`
+	ListenPorts      []AgentListenPort   `json:"listenPorts"`
+	Pressure         AgentPressure       `json:"pressure"`
+	OOMKills         []AgentLog          `json:"oomKills"`
+	UpdatesAvailable int                 `json:"updatesAvailable"`
+	RebootRequired   bool                `json:"rebootRequired"`
+	InventoryAt      int64               `json:"inventoryAt"`
+	CollectedAt      int64               `json:"collectedAt"`
+	ActionResults    []AgentActionResult `json:"actionResults,omitempty"`
 }
 
 type agentInventory struct {
@@ -137,6 +138,7 @@ type AgentUpdateManifest struct {
 type agentReportResponse struct {
 	Accepted bool                 `json:"accepted"`
 	Update   *AgentUpdateManifest `json:"update,omitempty"`
+	Commands []AgentCommand       `json:"commands,omitempty"`
 }
 
 var guestInventory struct {
@@ -150,6 +152,11 @@ var guestIssues struct {
 	collectedAt time.Time
 }
 
+var guestActionResults struct {
+	sync.Mutex
+	value []AgentActionResult
+}
+
 var agentBinaryInfo struct {
 	sync.Once
 	manifest AgentUpdateManifest
@@ -258,6 +265,8 @@ func (s *Store) SaveAgentReport(id, secret, remote string, report AgentReport) e
 	if !s.AuthenticateAgent(id, secret) {
 		return errors.New("агент не авторизован")
 	}
+	s.CompleteAgentActions(id, report.ActionResults)
+	report.ActionResults = nil
 	data, _ := json.Marshal(report)
 	_, err := s.db.Exec(`UPDATE agents SET hostname=?,version=?,last_seen=?,report_json=?,remote_address=? WHERE id=?`, report.Hostname, report.Version, time.Now().Unix(), string(data), remote, id)
 	return err
@@ -325,6 +334,9 @@ func runGuestAgent(opts agentOptions) error {
 	client := &http.Client{Timeout: 12 * time.Second}
 	for {
 		report := collectAgentReport()
+		guestActionResults.Lock()
+		report.ActionResults = append([]AgentActionResult(nil), guestActionResults.value...)
+		guestActionResults.Unlock()
 		data, _ := json.Marshal(report)
 		req, _ := http.NewRequest(http.MethodPost, config.Server+"/api/agent/report", bytes.NewReader(data))
 		req.Header.Set("Content-Type", "application/json")
@@ -351,7 +363,23 @@ func runGuestAgent(opts agentOptions) error {
 			}
 			if response.StatusCode == http.StatusOK {
 				var result agentReportResponse
-				if json.Unmarshal(responseData, &result) == nil && result.Update != nil && newerAgentVersion(result.Update.Version, version) {
+				if json.Unmarshal(responseData, &result) == nil {
+					if len(report.ActionResults) > 0 {
+						guestActionResults.Lock()
+						guestActionResults.value = nil
+						guestActionResults.Unlock()
+					}
+					if len(result.Commands) > 0 {
+						executed := make([]AgentActionResult, 0, len(result.Commands))
+						for _, command := range result.Commands {
+							executed = append(executed, executeAgentCommand(command))
+						}
+						guestActionResults.Lock()
+						guestActionResults.value = append(guestActionResults.value, executed...)
+						guestActionResults.Unlock()
+					}
+				}
+				if result.Update != nil && newerAgentVersion(result.Update.Version, version) {
 					if updateErr := applyAgentUpdate(client, config, *result.Update); updateErr != nil {
 						requestErr = fmt.Errorf("автообновление: %v", updateErr)
 					} else {

agent_actions.go

@@ -0,0 +1,210 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"os/exec"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type AgentCommand struct {
+	ID     int64  `json:"id"`
+	Action string `json:"action"`
+	Target string `json:"target,omitempty"`
+}
+
+type AgentActionResult struct {
+	ID      int64  `json:"id"`
+	Success bool   `json:"success"`
+	Message string `json:"message"`
+}
+
+type AgentAction struct {
+	ID          int64  `json:"id"`
+	AgentID     string `json:"agentId"`
+	AgentName   string `json:"agentName"`
+	Action      string `json:"action"`
+	Target      string `json:"target"`
+	RequestedAt int64  `json:"requestedAt"`
+	StartedAt   *int64 `json:"startedAt,omitempty"`
+	CompletedAt *int64 `json:"completedAt,omitempty"`
+	Status      string `json:"status"`
+	Result      string `json:"result"`
+}
+
+var safeUnitName = regexp.MustCompile(`^[A-Za-z0-9_.@:-]+\.service$`)
+var safeContainerName = regexp.MustCompile(`^[A-Za-z0-9_.-]{1,128}$`)
+
+func (s *Store) QueueAgentAction(agentID, action, target string) (AgentAction, error) {
+	action, target = strings.TrimSpace(action), strings.TrimSpace(target)
+	var raw, name string
+	if err := s.db.QueryRow(`SELECT report_json,name FROM agents WHERE id=?`, agentID).Scan(&raw, &name); err != nil {
+		return AgentAction{}, fmt.Errorf("агент не найден")
+	}
+	var report AgentReport
+	_ = json.Unmarshal([]byte(raw), &report)
+	valid := false
+	switch action {
+	case "systemd-restart", "systemd-reset-failed":
+		if safeUnitName.MatchString(target) {
+			for _, service := range report.Services {
+				if service.Name == target {
+					valid = true
+					break
+				}
+			}
+		}
+	case "docker-restart":
+		if safeContainerName.MatchString(target) {
+			for _, container := range report.Containers {
+				if container.ID == target || container.Name == target {
+					valid = true
+					break
+				}
+			}
+		}
+	case "updates-refresh":
+		valid = target == ""
+	}
+	if !valid {
+		return AgentAction{}, fmt.Errorf("действие или цель не входят в разрешённый список")
+	}
+	now := time.Now().Unix()
+	result, err := s.db.Exec(`INSERT INTO agent_actions(agent_id,action,target,requested_at,status) VALUES(?,?,?,?, 'queued')`, agentID, action, target, now)
+	if err != nil {
+		return AgentAction{}, err
+	}
+	id, _ := result.LastInsertId()
+	return AgentAction{ID: id, AgentID: agentID, AgentName: name, Action: action, Target: target, RequestedAt: now, Status: "queued"}, nil
+}
+
+func (s *Store) DispatchAgentActions(agentID string) ([]AgentCommand, error) {
+	tx, err := s.db.Begin()
+	if err != nil {
+		return nil, err
+	}
+	defer tx.Rollback()
+	_, _ = tx.Exec(`UPDATE agent_actions SET status='queued',started_at=NULL WHERE agent_id=? AND status='running' AND started_at<?`, agentID, time.Now().Add(-5*time.Minute).Unix())
+	rows, err := tx.Query(`SELECT id,action,target FROM agent_actions WHERE agent_id=? AND status='queued' ORDER BY id LIMIT 3`, agentID)
+	if err != nil {
+		return nil, err
+	}
+	var commands []AgentCommand
+	for rows.Next() {
+		var c AgentCommand
+		if err = rows.Scan(&c.ID, &c.Action, &c.Target); err != nil {
+			rows.Close()
+			return nil, err
+		}
+		commands = append(commands, c)
+	}
+	rows.Close()
+	now := time.Now().Unix()
+	for _, c := range commands {
+		if _, err = tx.Exec(`UPDATE agent_actions SET status='running',started_at=? WHERE id=?`, now, c.ID); err != nil {
+			return nil, err
+		}
+	}
+	return commands, tx.Commit()
+}
+
+func (s *Store) CompleteAgentActions(agentID string, results []AgentActionResult) {
+	now := time.Now().Unix()
+	for _, result := range results {
+		status := "failed"
+		if result.Success {
+			status = "completed"
+		}
+		message := result.Message
+		if len(message) > 4000 {
+			message = message[:4000]
+		}
+		_, _ = s.db.Exec(`UPDATE agent_actions SET status=?,result=?,completed_at=? WHERE id=? AND agent_id=? AND status='running'`, status, message, now, result.ID, agentID)
+	}
+}
+
+func (s *Store) AgentActions(limit int) ([]AgentAction, error) {
+	if limit < 1 || limit > 200 {
+		limit = 100
+	}
+	rows, err := s.db.Query(`SELECT a.id,a.agent_id,g.name,a.action,a.target,a.requested_at,a.started_at,a.completed_at,a.status,a.result FROM agent_actions a JOIN agents g ON g.id=a.agent_id ORDER BY a.id DESC LIMIT ?`, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var out []AgentAction
+	for rows.Next() {
+		var v AgentAction
+		if err = rows.Scan(&v.ID, &v.AgentID, &v.AgentName, &v.Action, &v.Target, &v.RequestedAt, &v.StartedAt, &v.CompletedAt, &v.Status, &v.Result); err != nil {
+			return nil, err
+		}
+		out = append(out, v)
+	}
+	return out, rows.Err()
+}
+
+func executeAgentCommand(command AgentCommand) AgentActionResult {
+	result := AgentActionResult{ID: command.ID}
+	var output string
+	switch command.Action {
+	case "systemd-restart":
+		output = runAgentCombinedCommand(30*time.Second, "systemctl", "restart", command.Target)
+	case "systemd-reset-failed":
+		output = runAgentCombinedCommand(15*time.Second, "systemctl", "reset-failed", command.Target)
+	case "docker-restart":
+		output = restartAgentContainer(command.Target)
+	case "updates-refresh":
+		guestInventory.Lock()
+		guestInventory.value.CollectedAt = time.Time{}
+		guestInventory.Unlock()
+		result.Success = true
+		result.Message = "Проверка обновлений поставлена в очередь"
+		return result
+	default:
+		result.Message = "Команда не разрешена"
+		return result
+	}
+	result.Success = !strings.HasPrefix(output, "ERROR: ")
+	result.Message = strings.TrimSpace(output)
+	if result.Message == "" && result.Success {
+		result.Message = "Выполнено успешно"
+	}
+	return result
+}
+
+func runAgentCombinedCommand(timeout time.Duration, name string, args ...string) string {
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	output, err := exec.CommandContext(ctx, name, args...).CombinedOutput()
+	message := strings.TrimSpace(string(output))
+	if err != nil {
+		return "ERROR: " + err.Error() + ": " + message
+	}
+	return message
+}
+
+func restartAgentContainer(target string) string {
+	transport := &http.Transport{DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
+		return (&net.Dialer{}).DialContext(ctx, "unix", "/var/run/docker.sock")
+	}}
+	defer transport.CloseIdleConnections()
+	client := &http.Client{Transport: transport, Timeout: 35 * time.Second}
+	request, _ := http.NewRequest(http.MethodPost, "http://docker/containers/"+target+"/restart?t=10", bytes.NewReader(nil))
+	response, err := client.Do(request)
+	if err != nil {
+		return "ERROR: " + err.Error()
+	}
+	defer response.Body.Close()
+	body, _ := io.ReadAll(io.LimitReader(response.Body, 4096))
+	if response.StatusCode >= 300 {
+		return "ERROR: Docker вернул " + response.Status + ": " + strings.TrimSpace(string(body))
+	}
+	return "Контейнер перезапущен"
+}

agent_actions_test.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"encoding/json"
+	"testing"
+	"time"
+)
+
+func TestAgentActionAllowlistAndLifecycle(t *testing.T) {
+	store, err := openStore(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer store.Close()
+	report, _ := json.Marshal(AgentReport{Services: []AgentService{{Name: "gitea.service"}}, Containers: []AgentContainer{{ID: "abc123", Name: "gitea"}}})
+	_, err = store.db.Exec(`INSERT INTO agents(id,name,secret_hash,enrolled_at,last_seen,report_json) VALUES('a','agent','x',?,?,?)`, time.Now().Unix(), time.Now().Unix(), string(report))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err = store.QueueAgentAction("a", "systemd-restart", "../../bad.service"); err == nil {
+		t.Fatal("unsafe unit accepted")
+	}
+	action, err := store.QueueAgentAction("a", "systemd-restart", "gitea.service")
+	if err != nil {
+		t.Fatal(err)
+	}
+	commands, err := store.DispatchAgentActions("a")
+	if err != nil || len(commands) != 1 || commands[0].ID != action.ID {
+		t.Fatalf("commands=%#v err=%v", commands, err)
+	}
+	store.CompleteAgentActions("a", []AgentActionResult{{ID: action.ID, Success: true, Message: "ok"}})
+	items, err := store.AgentActions(10)
+	if err != nil || len(items) != 1 || items[0].Status != "completed" {
+		t.Fatalf("items=%#v err=%v", items, err)
+	}
+}
+
+func TestManualServiceLinkGroupsOfflineAlerts(t *testing.T) {
+	metrics := dashboardMetrics{Agents: []ManagedAgent{{ID: "a", Name: "app", VMID: 105, Online: false}}, ServiceLinks: []ServiceLink{{ServiceID: 7, AgentID: "a", VMID: 105}}, Services: ServicesMetrics{Services: []ServiceStatus{{MonitoredService: MonitoredService{ID: 7, Name: "Gitea"}, Endpoints: []ServiceEndpointStatus{{Kind: "local", Up: false}}}}}}
+	alerts := []Alert{{ID: "agent-offline-a-105"}, {ID: "service-7-local"}, {ID: "other"}}
+	grouped := groupLinkedAlerts(metrics, alerts)
+	if len(grouped) != 2 {
+		t.Fatalf("grouped=%#v", grouped)
+	}
+	found := false
+	for _, alert := range grouped {
+		if alert.ID == "group-agent-offline-a-105" {
+			found = true
+		}
+	}
+	if !found {
+		t.Fatalf("group alert missing: %#v", grouped)
+	}
+}

alert_events.go

@@ -124,10 +124,22 @@ func (s *Store) AcknowledgeAlert(eventID int64) error {
 }
 
 func (s *Store) AlertHistory(limit int) ([]AlertEvent, error) {
+	return s.AlertHistoryBetween(limit, 0, 0)
+}
+
+func (s *Store) AlertHistoryBetween(limit int, from, to int64) ([]AlertEvent, error) {
 	if limit < 1 || limit > 500 {
 		limit = 200
 	}
-	rows, err := s.db.Query(`SELECT id,alert_key,severity,source,title,message,first_seen,last_seen,resolved_at,acknowledged_at,planned,maintenance_reason FROM alert_events ORDER BY first_seen DESC LIMIT ?`, limit)
+	query := `SELECT id,alert_key,severity,source,title,message,first_seen,last_seen,resolved_at,acknowledged_at,planned,maintenance_reason FROM alert_events`
+	args := []any{}
+	if from > 0 && to > from {
+		query += ` WHERE first_seen>=? AND first_seen<?`
+		args = append(args, from, to)
+	}
+	query += ` ORDER BY first_seen DESC LIMIT ?`
+	args = append(args, limit)
+	rows, err := s.db.Query(query, args...)
 	if err != nil {
 		return nil, err
 	}

history.go

@@ -64,6 +64,30 @@ func (s *Store) AddEntityMetrics(metrics dashboardMetrics) {
 			s.AddEntityHistory("backup-duration", "VMID "+task.ID, ts, &duration, nil)
 		}
 	}
+	for _, agent := range metrics.Agents {
+		if !agent.Online {
+			continue
+		}
+		name := agent.ID + " · " + agent.Name
+		cpu := agent.Report.CPUPercent
+		memory := float64(0)
+		if agent.Report.MemoryTotal > 0 {
+			memory = float64(agent.Report.MemoryUsed) / float64(agent.Report.MemoryTotal) * 100
+		}
+		swap := float64(0)
+		if agent.Report.SwapTotal > 0 {
+			swap = float64(agent.Report.SwapUsed) / float64(agent.Report.SwapTotal) * 100
+		}
+		s.AddEntityHistory("agent-resource", name, ts, &cpu, &memory)
+		s.AddEntityHistory("agent-swap", name, ts, &swap, nil)
+		pressure := agent.Report.Pressure.IO.Avg10
+		s.AddEntityHistory("agent-pressure", name, ts, &pressure, nil)
+		for _, filesystem := range agent.Report.Filesystems {
+			used := filesystem.UsedPercent
+			inodes := filesystem.InodesPercent
+			s.AddEntityHistory("agent-filesystem", name+" · "+filesystem.Mountpoint, ts, &used, &inodes)
+		}
+	}
 	s.PruneEntityHistory()
 }
 

service_links.go

@@ -0,0 +1,110 @@
+package main
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+)
+
+type ServiceLink struct {
+	ServiceID     int64  `json:"serviceId"`
+	AgentID       string `json:"agentId"`
+	VMID          int    `json:"vmid"`
+	ComponentType string `json:"componentType"`
+	ComponentName string `json:"componentName"`
+	Port          int    `json:"port"`
+}
+
+func (s *Store) ServiceLinks() ([]ServiceLink, error) {
+	rows, err := s.db.Query(`SELECT service_id,agent_id,vmid,component_type,component_name,port FROM service_links ORDER BY service_id`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var out []ServiceLink
+	for rows.Next() {
+		var v ServiceLink
+		if err = rows.Scan(&v.ServiceID, &v.AgentID, &v.VMID, &v.ComponentType, &v.ComponentName, &v.Port); err != nil {
+			return nil, err
+		}
+		out = append(out, v)
+	}
+	return out, rows.Err()
+}
+
+func (s *Store) SaveServiceLink(v ServiceLink) (ServiceLink, error) {
+	v.AgentID = strings.TrimSpace(v.AgentID)
+	v.ComponentType = strings.TrimSpace(v.ComponentType)
+	v.ComponentName = strings.TrimSpace(v.ComponentName)
+	if v.ServiceID <= 0 {
+		return v, fmt.Errorf("выберите сервис")
+	}
+	if v.AgentID == "" && v.VMID <= 0 {
+		return v, fmt.Errorf("выберите агент или VMID")
+	}
+	if v.ComponentType != "" && v.ComponentType != "systemd" && v.ComponentType != "docker" && v.ComponentType != "process" {
+		return v, fmt.Errorf("неизвестный тип компонента")
+	}
+	if v.Port < 0 || v.Port > 65535 {
+		return v, fmt.Errorf("некорректный порт")
+	}
+	_, err := s.db.Exec(`INSERT INTO service_links(service_id,agent_id,vmid,component_type,component_name,port) VALUES(?,?,?,?,?,?) ON CONFLICT(service_id) DO UPDATE SET agent_id=excluded.agent_id,vmid=excluded.vmid,component_type=excluded.component_type,component_name=excluded.component_name,port=excluded.port`, v.ServiceID, v.AgentID, v.VMID, v.ComponentType, v.ComponentName, v.Port)
+	return v, err
+}
+func (s *Store) DeleteServiceLink(serviceID int64) error {
+	_, err := s.db.Exec(`DELETE FROM service_links WHERE service_id=?`, serviceID)
+	return err
+}
+
+func groupLinkedAlerts(metrics dashboardMetrics, alerts []Alert) []Alert {
+	if len(metrics.ServiceLinks) == 0 {
+		return alerts
+	}
+	agentOffline := map[string]ManagedAgent{}
+	for _, agent := range metrics.Agents {
+		if !agent.Online {
+			agentOffline[agent.ID] = agent
+		}
+	}
+	affected := map[string][]string{}
+	remove := map[string]bool{}
+	for _, link := range metrics.ServiceLinks {
+		agent, offline := agentOffline[link.AgentID]
+		if !offline {
+			continue
+		}
+		for _, service := range metrics.Services.Services {
+			if service.ID != link.ServiceID {
+				continue
+			}
+			for _, endpoint := range service.Endpoints {
+				if !endpoint.Up {
+					key := fmt.Sprintf("service-%d-%s", service.ID, endpoint.Kind)
+					remove[key] = true
+					affected[agent.ID] = append(affected[agent.ID], service.Name)
+				}
+			}
+		}
+	}
+	if len(affected) == 0 {
+		return alerts
+	}
+	out := make([]Alert, 0, len(alerts))
+	for _, alert := range alerts {
+		skip := remove[alert.ID]
+		for agentID := range affected {
+			if alert.ID == "agent-offline-"+agentID+fmt.Sprintf("-%d", agentOffline[agentID].VMID) {
+				skip = true
+			}
+		}
+		if !skip {
+			out = append(out, alert)
+		}
+	}
+	for agentID, names := range affected {
+		sort.Strings(names)
+		agent := agentOffline[agentID]
+		out = append(out, Alert{ID: "group-agent-offline-" + agentID + fmt.Sprintf("-%d", agent.VMID), Severity: "critical", Source: "Корреляция", Title: agent.Name + ": агент недоступен, связанные сервисы не отвечают", Message: fmt.Sprintf("VMID %d. Затронуто сервисов: %d — %s. Вероятная первопричина: недоступна гостевая система или агент.", agent.VMID, len(names), strings.Join(names, ", "))})
+	}
+	return out
+}

store.go

@@ -140,6 +140,9 @@ func openStore(path string) (*Store, error) {
 		`CREATE INDEX IF NOT EXISTS entity_history_kind_ts_idx ON entity_history(kind,ts)`,
 		`CREATE TABLE IF NOT EXISTS agent_enrollment_tokens (token_hash TEXT PRIMARY KEY, created_at INTEGER NOT NULL, expires_at INTEGER NOT NULL, used_at INTEGER)`,
 		`CREATE TABLE IF NOT EXISTS agents (id TEXT PRIMARY KEY, name TEXT NOT NULL, vmid INTEGER NOT NULL DEFAULT 0, hostname TEXT NOT NULL DEFAULT '', machine_id TEXT NOT NULL DEFAULT '', secret_hash TEXT NOT NULL, enrolled_at INTEGER NOT NULL, last_seen INTEGER NOT NULL, version TEXT NOT NULL DEFAULT '', report_json TEXT NOT NULL DEFAULT '{}', remote_address TEXT NOT NULL DEFAULT '')`,
+		`CREATE TABLE IF NOT EXISTS agent_actions (id INTEGER PRIMARY KEY AUTOINCREMENT, agent_id TEXT NOT NULL, action TEXT NOT NULL, target TEXT NOT NULL DEFAULT '', requested_at INTEGER NOT NULL, started_at INTEGER, completed_at INTEGER, status TEXT NOT NULL DEFAULT 'queued', result TEXT NOT NULL DEFAULT '', FOREIGN KEY(agent_id) REFERENCES agents(id) ON DELETE CASCADE)`,
+		`CREATE INDEX IF NOT EXISTS agent_actions_agent_status_idx ON agent_actions(agent_id,status)`,
+		`CREATE TABLE IF NOT EXISTS service_links (service_id INTEGER PRIMARY KEY, agent_id TEXT NOT NULL DEFAULT '', vmid INTEGER NOT NULL DEFAULT 0, component_type TEXT NOT NULL DEFAULT '', component_name TEXT NOT NULL DEFAULT '', port INTEGER NOT NULL DEFAULT 0, FOREIGN KEY(service_id) REFERENCES services(id) ON DELETE CASCADE)`,
 	}
 	for _, statement := range statements {
 		if _, err := db.Exec(statement); err != nil {