Harbor Scanner Adapter for Trivy

The Harbor Scanner Adapter for Trivy is a service that translates the Harbor scanning API into Trivy commands and allows Harbor to use Trivy for providing vulnerability reports on images stored in Harbor registry as part of its vulnerability scan feature.

Harbor Scanner Adapter for Trivy is the default static vulnerability scanner in Harbor >= 2.2.

For compliance with core components Harbor builds the adapter service binaries into Docker images based on Photos OS (goharbor/trivy-adapter-photon), whereas in this repository we build Docker images based on Alpine (aquasec/harbor-scanner-trivy). There is no difference in functionality though.

TOC

• Version Matrix
• Deployment
  • Harbor >= 2.0 on Kubernetes
  • Harbor 1.10 on Kubernetes
• Configuration
• Documentation
• Troubleshooting
• Contributing

Version Matrix

The following matrix indicates the version of Trivy and Trivy adapter installed in each Harbor release.

Deployment

Harbor >= 2.0 on Kubernetes

In Harbor >= 2.0 Trivy can be configured as the default vulnerability scanner, therefore you can install it with the official Harbor Helm chart, where HARBOR_CHART_VERSION >= 1.4:

helm repo add harbor https://helm.goharbor.io

helm install harbor harbor/harbor \
  --create-namespace \
  --namespace harbor \
  --set clair.enabled=false \
  --set trivy.enabled=true

The adapter service is automatically registered under the Interrogation Service in the Harbor interface and designated as the default scanner.

Harbor 1.10 on Kubernetes

1. Install the harbor-scanner-trivy chart:

   helm repo add aqua https://aquasecurity.github.io/helm-charts
   

   helm install harbor-scanner-trivy aqua/harbor-scanner-trivy \
     --namespace harbor --create-namespace
   

2. Configure the scanner adapter in the Harbor interface.

   1. Navigate to Interrogation Services and click + NEW SCANNER.
   2. Enter http://harbor-scanner-trivy.harbor:8080 as the Endpoint URL and click TEST CONNECTION.
   3. If everything is fine click ADD to save the configuration.

3. Select the Trivy scanner and set it as default by clicking SET AS DEFAULT. Make sure the Default label is displayed next to the Trivy scanner's name.

Configuration

Configuration of the adapter is done via environment variables at startup.

Documentation

• Architecture - architectural decisions behind designing harbor-scanner-trivy.
• Releases - how to release a new version of harbor-scanner-trivy.

Troubleshooting

Error: database error: --skip-db-update cannot be specified on the first run

If you set the value of the SCANNER_TRIVY_SKIP_UPDATE to true, make sure that you download the Trivy DB and mount it in the /home/scanner/.cache/trivy/db/trivy.db path.

Error: failed to list releases: Get https://api.github.com/repos/aquasecurity/trivy-db/releases: dial tcp: lookup api.github.com on 127.0.0.11:53: read udp 127.0.0.1:39070->127.0.0.11:53: i/o timeout

Most likely it's a Docker DNS server or network firewall configuration issue. Trivy requires internet connection to periodically download vulnerability database from GitHub to show up-to-date risks.

Try adding a DNS server to docker-compose.yml created by Harbor installer.

version: 2
services:
  trivy-adapter:
    # NOTE Adjust IPs to your environment.
    dns:
      - 8.8.8.8
      - 192.168.1.1

Alternatively, configure Docker daemon to use the same DNS server as host operating system. See DNS services section in the Docker container networking documentation for more details.

Error: failed to list releases: GET https://api.github.com/repos/aquasecurity/trivy-db/releases: 403 API rate limit exceeded

Trivy DB downloads from GitHub are subject to rate limiting. Make sure that the Trivy DB is mounted and cached in the /home/scanner/.cache/trivy/db/trivy.db path. If, for any reason, it's not enough you can set the value of the SCANNER_TRIVY_GITHUB_TOKEN environment variable (authenticated requests get a higher rate limit).

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests.

Harbor Scanner Adapter for Trivy is an Aqua Security open source project.
Learn about our open source work and portfolio here.