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Anchore CI tools CircleCI

An assortment of scripts & tools for integrating Anchore Engine into your CI/CD pipeline.

scripts/inline_scan

  • Allows scanning and analysis of local docker images.
  • Invokes the anchore/inline-scan container to perform a vulnerability scan or image analysis.

scripts/anchore-ci-tools.py

  • Currently only supports docker based CI/CD tools.
  • Script is intended to run directly on Anchore Engine containers.
  • Used by scripts/inline_scan & should only be used when inline_scan is not an option.

scripts/build.sh

  • Used to build any version of the inline_scan container.
  • Also can be used to run CI tests locally.

CircleCI Orbs

Source code for CircleCi orbs can be found in circleci-orbs/<ORB>/.

Anchore inline-scan container

Image is built using the official Anchore Engine image base. It contains a Postgresql database pre-loaded with Anchore vulnerability data from https://github.com/anchore/engine-db-preload daily. Also contains a Docker registry which is used for passing images to Anchore Engine for vulnerability scanning.

Container is built using the scripts/build.sh script. The version of anchore-engine to build with can be specified with the environment variable ANCHORE_VERSION=<VERSION>.

After building the inline_scan container locally, the scripts/inline_scan script can be called using this container by setting the environment variable ANCHORE_CI_IMAGE=stateless_anchore:ci.

Inline vulnerability scanner

Wrapper script for inline_scan container, requires Docker & BASH to be installed on system running the script.

  • Call script directly from github with:

    curl -s https://ci-tools.anchore.io/inline_scan-v0.5.0 | bash -s -- [OPTIONS] <IMAGE_NAME>

Pull multiple images from dockerhub, scan and generate reports.

inline_scan -p -r alpine:latest ubuntu:latest centos:latest

Pass Dockerfile to image scan, after docker build.

docker build -t example-image:latest -f ./Dockerfile .
inline_scan -d ./Dockerfile example-image:latest

Scan image using custom policy bundle, fail script upon failed policy evaluation.

inline_scan -f -p ./policy-bundle.json example-image:latest

Inline image analysis

For use cases where it is desirable to perform image analysis for a locally build container image, and import the image analysis to an existing Anchore Engine installation, we support a methodology using the inline_scan tool. With this technique, you can 'add' an image to your anchore engine service by analyzing any image that is available locally (say, on the docker host on which the image was built). You can then import the analysis data into anchore engine, rather than the regular method where images are pulled from a registry when added to anchore engine.

The only requirements to run the inline_scan script with the 'analyze' operation is the ability to execute Docker commands, network connectivity to an anchore engine API endpoint & bash. We host a versioned copy of this script that can be downloaded directly with curl and executed in a bash pipeline.

  • Note - For the rest of this document, USER, PASS, and URL refer to an anchore engine user, password, and engine endpoint URL (http://:/v1) respectively.

To run the script on your workstation, use the following command syntax.

curl -s https://ci-tools.anchore.io/inline_scan-v0.5.0 | bash -s -- analyze -u <USER> -p <PASS> -r <URL> [ OPTIONS ] <FULL_IMAGE_TAG>

Image Identity Selection

In order to perform local analysis and import the image correctly into your existing anchore engine deployment, special attention should be paid to the image identifiers (image id, digest, manifest, full tag name) when performing local analysis. Since image digests are generated from an image 'manifest' which is generated by a container registry, this technique requires that you either specify a digest, ask for one to be randomly 'generated', or supply a valid manifest alongside the image when it is being imported. An image ID can also be supplied if one is available that you would prefer to use. Best practice is to supply these identifiers in whichever way is most appropriate for your use case, resulting in the information being associated with the imported image correctly such that you can refer to it later using these identifiers.

See docs.anchore.com for more usage examples.