GitLab Container Scanning

GitLab Container Scanning is an automated container image security analysis capability built directly into GitLab CI/CD pipelines to scan Docker and OCI container images for known vulnerabilities in operating system packages and language dependencies. Powered by open-source scanning engines like Trivy and Grype, it ensures that vulnerable container images are caught before deployment to production container registries or Kubernetes clusters.

The scanner runs automatically as a job within the GitLab CI/CD pipeline, analyzing compiled container images before they are pushed to the GitLab Container Registry. Core capabilities include automated vulnerability scanning of base OS packages (Alpine, Debian, Ubuntu, Red Hat) and installed software libraries, severity-based risk scoring (CVSS), detailed vulnerability reports delivered directly within merge requests, automated pipeline blocking when critical vulnerabilities exceed policy thresholds, and automated Software Bill of Materials (SBOM) generation for container layers.

Cloud-native enterprises, Kubernetes platform teams, and DevOps organizations deploy GitLab Container Scanning to enforce container hygiene and eliminate container supply chain risks. It integrates natively with GitLab CI/CD, the GitLab Container Registry, and Kubernetes deployment workflows. Common operational use cases include identifying vulnerable base OS images during container builds, preventing unpatched CVEs from entering container registries, auditing container security posture before deployment to production Kubernetes clusters, and demonstrating continuous container security compliance for regulatory audits.