140 lines
3.8 KiB
Go
140 lines
3.8 KiB
Go
package ingest
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"net/http"
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"strings"
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"time"
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"git.apinb.com/ops/logs/internal/config"
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)
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// AlertReceiveBody 与 alert ReceiveRequest 对齐（含必填 raw_data）
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type AlertReceiveBody struct {
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AlertName string `json:"alert_name"`
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Summary string `json:"summary"`
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Description string `json:"description"`
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SeverityCode string `json:"severity_code"`
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Value string `json:"value"`
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Threshold string `json:"threshold"`
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Labels map[string]string `json:"labels"`
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Agent string `json:"agent"`
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PolicyID uint `json:"policy_id"`
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RawData json.RawMessage `json:"raw_data"`
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}
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type RawEventIngestBody struct {
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SourceType string `json:"source_type"`
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ResourceUID string `json:"resource_uid,omitempty"`
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EventTime time.Time `json:"event_time"`
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Severity string `json:"severity"`
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Title string `json:"title"`
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Message string `json:"message"`
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Labels map[string]string `json:"labels,omitempty"`
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Annotations map[string]string `json:"annotations,omitempty"`
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ParseStatus string `json:"parse_status"`
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RawPayload json.RawMessage `json:"raw_payload"`
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TraceID string `json:"trace_id,omitempty"`
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}
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func forwardAlert(body AlertReceiveBody) error {
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cfg := config.Spec.AlertForward
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if cfg == nil || !cfg.Enabled || cfg.BaseURL == "" {
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return nil
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}
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if len(body.RawData) == 0 {
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return fmt.Errorf("raw_data 不能为空")
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}
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if body.AlertName == "" {
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body.AlertName = "日志告警"
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}
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if body.PolicyID == 0 && cfg.DefaultPolicyID > 0 {
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body.PolicyID = cfg.DefaultPolicyID
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}
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rawEvent := buildRawEventIngestBody(body, "parsed")
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raw, err := json.Marshal(rawEvent)
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if err != nil {
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return err
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}
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url := cfg.BaseURL + "/Alert/v1/raw-events/ingest"
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req, err := http.NewRequest(http.MethodPost, url, bytes.NewReader(raw))
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if err != nil {
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return err
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}
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req.Header.Set("Content-Type", "application/json")
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if cfg.InternalKey != "" {
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req.Header.Set("X-Internal-Key", cfg.InternalKey)
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}
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client := &http.Client{Timeout: 10 * time.Second}
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resp, err := client.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("alert returned HTTP %d", resp.StatusCode)
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}
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return nil
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}
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func buildRawEventIngestBody(body AlertReceiveBody, parseStatus string) RawEventIngestBody {
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sourceType := rawEventSourceType(body)
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if parseStatus == "" {
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parseStatus = "parsed"
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}
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annotations := map[string]string{
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"description": body.Description,
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"value": body.Value,
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"threshold": body.Threshold,
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"agent": body.Agent,
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}
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return RawEventIngestBody{
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SourceType: sourceType,
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ResourceUID: rawEventResourceUID(body.Labels),
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EventTime: time.Now().UTC(),
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Severity: body.SeverityCode,
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Title: firstNonEmpty(body.AlertName, "日志事件"),
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Message: firstNonEmpty(body.Summary, body.Description),
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Labels: body.Labels,
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Annotations: annotations,
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ParseStatus: parseStatus,
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RawPayload: body.RawData,
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}
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}
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func rawEventSourceType(body AlertReceiveBody) string {
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if body.Labels != nil {
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switch strings.TrimSpace(body.Labels["source_subtype"]) {
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case "syslog":
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return "syslog"
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case "snmp_trap":
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return "trap"
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}
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}
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switch body.Agent {
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case "logs-syslog":
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return "syslog"
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case "logs-trap":
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return "trap"
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default:
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return "syslog"
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}
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}
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func rawEventResourceUID(labels map[string]string) string {
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if labels == nil {
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return ""
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}
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if uid := strings.TrimSpace(labels["resource_uid"]); uid != "" {
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return uid
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}
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category := strings.TrimSpace(labels["resource_category"])
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identity := strings.TrimSpace(labels["service_identity"])
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if category != "" && identity != "" {
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return category + ":" + identity
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}
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return ""
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}
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