Only available in 2.3 or later.


You can setup a security scanner for your Portus instance. This way, Portus will display whether the images you have on your registry have known security vulnerabilities. This feature is disabled by default, but it can be configured through the following values:

  # CoreOS Clair support ( This is only
  # guaranteed to work for v2.0.x releases of Clair.
    server: ""

    # Port where Clair exposes the health endpoint.
    # See
    health_port: 6061

    # Timeout for HTTP requests against Clair.
    timeout: 900

  # zypper-docker can be run as a server with its `serve` command. This backend
  # fetches the information as given by zypper-docker. Note that this feature
  # from zypper-docker is experimental and only available through another branch
  # than master.
  # NOTE: support for this is experimental since this functionality has not
  # been merged into master yet in zypper-docker.
    server: ""

  # This backend is only used for testing purposes, don't use it.
    server: ""

Portus supports having multiple scanners enabled at the same time.

CoreOS Clair

Clair support is only guaranteed to work for v2.0.x releases of Clair.

CoreOS Clair is an open source project for the static analysis of vulnerabilities in appc and docker containers. Portus only supports the analysis of docker images. In order to enable this backend, you have to pass the URL of your Clair server. For example (or simply with the PORTUS_SECURITY_CLAIR_SERVER environment variable):

    server: "http://my.clair.server:6060"

If you have enabled this backend, you should be able to see something like this in a repository:

Repository page with vulnerabilities highlighted

Clicking these links will take you to the tag’s page. For example:

Tag page with Clair vulnerabilities

Besides the server option, there are two other options:

  • health_port: the port where Clair is serving the health status. You can check more about health checking here.
  • timeout: the timeout for HTTP requests against Clair. It defaults to 900 seconds, which is the same default value as in Clair.


There are two other available backends:

  • zypper-docker: this is an experimental backend that uses a branch that is still under development in zypper-docker.
  • dummy: this should only be used for development purposes.