Why Harbor?

Harbor is an open source cloud native registry that stores, signs, and scans container images for vulnerabilities.

Harbor solves common challenges by delivering trust, compliance, performance, and interoperability. It fills a gap for organizations and applications that cannot use a public or cloud-based registry, or want a consistent experience across clouds.

  • After you install Harbor, you will need to deal with certificates.

  • There are 2 options,
    • buy a public certificate or use a self-signed certificate. If you have a public certificate, then using Harbor with docker cli, should be straight forward.
    • But if you have a self-signed certificate, then you will need to add the harbor url in docker insecure registry. Its under preferences > daemon > insecure registries

  • Restart docker.

  • Next is to authenticate to harbor using docker cli: docker login harbor.example.com

  • Using the harbor UI, create a new project, where you would pushing your docker images. Once all this is done, you can enjoy building and pushing images to your private docker registry

  • Build a docker image: docker build . -t harbor.example.com/rjain/buildbox

  • Finally, push the image up: docker push harbor.example.com/rjain/buildbox:latest