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Code Issues Packages Projects Releases 2 Wiki Activity

feat: add network monitors (ICMP/TCP/HTTP/DNS) (#2266)

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Co-authored-by: xiaomiku01 <xiaomiku01@outlook.com>
Co-authored-by: henrygd <hank@henrygd.me>
This commit is contained in:
Sven van Ginkel
2026-09-18 19:10:18 +02:00
committed by GitHub
parent 4bf70700f2
commit 90ed9a504d
89 changed files with 8699 additions and 457 deletions
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50
internal/alerts/alerts_cache.go
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@@ -1,6 +1,7 @@
package alerts
import (
"sync"
"time"
"github.com/pocketbase/dbx"
@@ -18,6 +19,9 @@ type CachedAlertData struct {
Triggered bool
Min uint8
PendingSince time.Time
// Immutable after publication; decoded only when the alert record changes.
MonitorStates map[string]string
MonitorStatesValid bool
// Created types.DateTime
}
@@ -30,11 +34,18 @@ func (a *CachedAlertData) PopulateFromRecord(record *core.Record) {
a.Triggered = record.GetBool("triggered")
a.Min = uint8(record.GetInt("min"))
a.PendingSince = record.GetDateTime("pending_since").Time()
if a.Name == alertNameNetworkMonitorLoss {
var state networkMonitorAlertState
a.MonitorStatesValid = record.UnmarshalJSONField("state", &state) == nil
a.MonitorStates = state.Monitors
}
// a.Created = record.GetDateTime("created")
}
// AlertsCache provides an in-memory cache for system alerts.
type AlertsCache struct {
// Serialize lazy loads with updates so a late load cannot replace newer state.
loadMu sync.Mutex
app core.App
store *store.Store[string, *store.Store[string, CachedAlertData]]
populated bool
@@ -69,6 +80,8 @@ func (c *AlertsCache) bindEvents() *AlertsCache {
// PopulateFromDB clears current entries and loads all alerts from the database into the cache.
func (c *AlertsCache) PopulateFromDB(force bool) error {
c.loadMu.Lock()
defer c.loadMu.Unlock()
if !force && c.populated {
return nil
}
@@ -78,7 +91,7 @@ func (c *AlertsCache) PopulateFromDB(force bool) error {
}
c.store.RemoveAll()
for _, record := range records {
c.Update(record)
c.update(record)
}
c.populated = true
return nil
@@ -86,6 +99,12 @@ func (c *AlertsCache) PopulateFromDB(force bool) error {
// Update adds or updates an alert record in the cache.
func (c *AlertsCache) Update(record *core.Record) {
c.loadMu.Lock()
defer c.loadMu.Unlock()
c.update(record)
}
func (c *AlertsCache) update(record *core.Record) {
systemID := record.GetString("system")
if systemID == "" {
return
@@ -102,6 +121,8 @@ func (c *AlertsCache) Update(record *core.Record) {
// Delete removes an alert record from the cache.
func (c *AlertsCache) Delete(record *core.Record) {
c.loadMu.Lock()
defer c.loadMu.Unlock()
systemID := record.GetString("system")
if systemID == "" {
return
@@ -115,18 +136,23 @@ func (c *AlertsCache) Delete(record *core.Record) {
func (c *AlertsCache) GetSystemAlerts(systemID string) []CachedAlertData {
systemStore, ok := c.store.GetOk(systemID)
if !ok {
// Populate cache for this system
records, err := c.app.FindAllRecords("alerts", dbx.NewExp("system={:system}", dbx.Params{"system": systemID}))
if err != nil {
return nil
c.loadMu.Lock()
defer c.loadMu.Unlock()
systemStore, ok = c.store.GetOk(systemID)
if !ok {
// Populate cache for this system
records, err := c.app.FindAllRecords("alerts", dbx.NewExp("system={:system}", dbx.Params{"system": systemID}))
if err != nil {
return nil
}
systemStore = store.New(map[string]CachedAlertData{})
for _, record := range records {
var ca CachedAlertData
ca.PopulateFromRecord(record)
systemStore.Set(record.Id, ca)
}
c.store.Set(systemID, systemStore)
}
systemStore = store.New(map[string]CachedAlertData{})
for _, record := range records {
var ca CachedAlertData
ca.PopulateFromRecord(record)
systemStore.Set(record.Id, ca)
}
c.store.Set(systemID, systemStore)
}
all := systemStore.GetAll()
alerts := make([]CachedAlertData, 0, len(all))