id: gcloud-logging-global-buckets-check

info:
  name: Logging Buckets Not Configured with Global Location
  author: princechaddha
  severity: medium
  description: |
    Checks if Cloud Logging buckets are configured with a global location scope to ensure centralized log management and consistent access control.
  impact: |
    Logging buckets not configured with a global location can result in fragmented log storage and difficulty in maintaining centralized logging practices.
  remediation: |
    Update Cloud Logging buckets to use the global location scope to enable centralized logging across all regions.
  reference:
    - https://cloud.google.com/logging/docs/export/configure_export_v2
  tags: cloud,devops,gcp,gcloud,google-cloud-logging,logging-buckets,gcp-cloud-config

flow: |
  code(1)
  for(let projectId of iterate(template.projectIds)){
    set("projectId", projectId)
    code(2)
    for (let bucket of template.buckets) {
      set("bucket", bucket);
      javascript(1);
    }}

self-contained: true

code:
  - engine:
      - sh
      - bash
    source: |
      gcloud projects list --format="json(projectId)"

    extractors:
      - type: json
        name: projectIds
        internal: true
        json:
          - '.[].projectId'

  - engine:
      - sh
      - bash
    source: |
      gcloud logging buckets list --project $projectId --format="json(name,location)"

    extractors:
      - type: json
        name: buckets
        internal: true
        json:
          - '.[].name'

javascript:
  - code: |
        bucket = template.bucket
        if (!bucket.includes('/global/')) {
          let result = `Bucket '${bucket}' is not configured with a global location.`;
          Export(result);
        }

    extractors:
      - type: dsl
        dsl:
          - response
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