✨ feat(promtail-config.yaml): 新增 api-log 任務以過濾包含 api 的日誌

✨ feat(Program.cs): 啟用 GrafanaLoki 日誌輸出功能並添加必要標籤
yaochangyu · Jan 20, 2025 · bd0d13d · bd0d13d
1 parent d430ee6
commit bd0d13d
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Showing 2 changed files with 38 additions and 8 deletions.
diff --git a/StructLog/Lab.Loki/Lab.Loki.WebApi/Program.cs b/StructLog/Lab.Loki/Lab.Loki.WebApi/Program.cs
@@ -12,13 +12,13 @@
     .WriteTo.Console(formatter)                                                         // 使用 JSON 格式輸出
     .WriteTo.File(formatter, "logs/aspnet-.txt", rollingInterval: RollingInterval.Hour) //正式環境不要用 File
     .WriteTo.Seq("http://localhost:5341", payloadFormatter: formatter)
-    // .WriteTo.GrafanaLoki( "http://loki:3100",
-    //     labels: new[] { 
-    //         new LokiLabel { Key = "service", Value = "api" }
-    //     },
-    //     credentials: null,
-    //     propertiesAsLabels: new[] { "RequestId", "RequestPath", "StatusCode" }
-    // )
+    .WriteTo.GrafanaLoki( "http://loki:3100",
+        labels: new[] { 
+            new LokiLabel { Key = "service", Value = "api" }
+        },
+        credentials: null,
+        propertiesAsLabels: new[] { "RequestId", "RequestPath", "StatusCode" }
+    )
     .CreateBootstrapLogger();
 Log.Information("Starting web host");
 

diff --git a/StructLog/Lab.Loki/promtail/promtail-config.yaml b/StructLog/Lab.Loki/promtail/promtail-config.yaml
@@ -32,4 +32,34 @@ scrape_configs:
           format: RFC3339Nano
       - output:
           source: message
-          format: "Input line: {{ .line }}"
+          format: "Input line: {{ .line }}"
+
+  - job_name: api-log
+    docker_sd_configs:
+      - host: unix:///var/run/docker.sock
+        refresh_interval: 5s
+    relabel_configs:
+      - source_labels: ['__meta_docker_container_name']
+        target_label: 'container'
+      # 只保留 container name 包含 api 的 log
+      - source_labels: ['__meta_docker_container_name']
+        #regex: '/?*api*'
+        regex: '/?.*api.*'
+        #regex: '/?labloki.*'
+        action: keep
+    pipeline_stages:
+      - timestamp:
+          source: time
+          format: RFC3339Nano
+      - output:
+          source: message
+          format: "Input line: {{ .line }}"
+      - json:
+          expressions:
+            RequestId: RequestId
+            RequestPath: RequestPath
+            StatusCode: StatusCode
+      - labels:
+          RequestId:
+          RequestPath:
+          StatusCode: