查看持续验证日志

本指南介绍如何查看由使用基于检查的平台政策的持续验证 (CV) 生成的 Cloud Logging 条目。如需改为查看旧版持续验证（已弃用）条目，请参阅查看旧版 CV 日志。

CV 会在 podEvent 条目中记录与检查相关的问题。 CV 会在 configErrorEvent 条目中记录与配置相关的问题，例如平台政策或 IAM 角色配置错误。

查看 CV 条目的日志

CV 会在 24 小时内将平台违反政策的行为记录到 Cloud Logging。您通常会在几个小时内看到这些条目。

如果没有映像违反了您启用的平台政策，则日志中不会显示任何条目。

如需查看过去 7 天的 CV 日志条目，请运行以下命令：

gcloud logging read \
     --order="desc" \
     --freshness=7d \
     --project=CLUSTER_PROJECT_ID \
    'logName:"binaryauthorization.googleapis.com%2Fcontinuous_validation" "policyName"'

将 CLUSTER_PROJECT_ID 替换为集群项目 ID。

检查类型

CV 日志会将违规信息记录到 checkResults。在该条目中，值 checkType 表示检查。每项检查的值如下所示：

  • ImageFreshnessCheck
  • SigstoreSignatureCheck
  • SimpleSigningAttestationCheck
  • SlsaCheck
  • TrustedDirectoryCheck
  • VulnerabilityCheck

日志示例

以下 CV Logging 条目示例描述了违反可信目录检查的不符合规则的映像：

{
  "insertId": "637c2de7-0000-2b64-b671-24058876bb74",
  "jsonPayload": {
    "podEvent": {
      "endTime": "2022-11-22T01:14:30.430151Z",
      "policyName": "projects/123456789/platforms/gke/policies/my-policy",
      "images": [
        {
          "result": "DENY",
          "checkResults": [
            {
              "explanation": "TrustedDirectoryCheck at index 0 with display name \"My trusted directory check\" has verdict NOT_CONFORMANT. Image is not in a trusted directory",
              "checkSetName": "My check set",
              "checkSetIndex": "0",
              "checkName": "My trusted directory check",
              "verdict": "NON_CONFORMANT",
              "checkType": "TrustedDirectoryCheck",
              "checkIndex": "0"
            }
          ],
          "image": "gcr.io/my-project/hello-app:latest"
        }
      ],
      "verdict": "VIOLATES_POLICY",
      "podNamespace": "default",
      "deployTime": "2022-11-22T01:06:53Z",
      "pod": "hello-app"
    },
    "@type": "type.googleapis.com/google.cloud.binaryauthorization.v1beta1.ContinuousValidationEvent"
  },
  "resource": {
    "type": "k8s_cluster",
    "labels": {
      "project_id": "my-project",
      "location": "us-central1-a",
      "cluster_name": "my-test-cluster"
    }
  },
  "timestamp": "2022-11-22T01:44:28.729881832Z",
  "severity": "WARNING",
  "logName": "projects/my-project/logs/binaryauthorization.googleapis.com%2Fcontinuous_validation",
  "receiveTimestamp": "2022-11-22T03:35:47.171905337Z"
}

后续步骤