Harbor Has a Free API — Enterprise Container Registry You Can Self-Host

Harbor is the CNCF graduated container registry for enterprises. It provides vulnerability scanning, RBAC, image replication, and artifact management — all self-hosted. Free, open source. A production-grade alternative to Docker Hub or ECR. Why Use Harbor? Self-hosted — full control over your container images Vulnerability scanning — Trivy integration scans every image RBAC — project-level access control Image replication — sync between registries across regions Artifact management — Helm charts, OCI artifacts, not just Docker images Quota management — control storage per project Quick Setup 1. Install # Download and install wget https://github.com/goharbor/harbor/releases/download/v2.11.0/harbor-online-installer-v2.11.0.tgz tar xzf harbor-online-installer-v2.11.0.tgz cd harbor # Configure cp harbor.yml.tmpl harbor.yml # Edit harbor.yml — set hostname, password, etc. ./install.sh --with-trivy # Harbor runs on port 80/443 2. Push an Image # Login docker login harbor.example.com -u admin