GitHub Enterprise - install and configure using Docker

Follow the instructions on this page to set up GitHub Enterprise with Snyk Broker. This integration is useful to ensure a secure connection with your on-premise or cloud GitHub Enterprise deployment.

Prerequisites Ask your Snyk account team to provide you with a Broker token.

You need Docker or a way to run Docker Linux containers. Some Docker deployments for Windows run only Windows containers. Ensure that your deployment is capable of running Linux containers.

Configure Broker to be used for GitHub Enterprise

To use the Snyk Broker client with a GitHub Enterprise deployment, run docker pull snyk/broker:github-enterprise. Refer to GitHub Enterprise - environment variables for Snyk Broker for definitions of the environment variables.

If necessary, go to the Advanced configuration page and make any configuration changes needed, such as providing the CA (Certificate Authority) to the Broker Client configuration if the GitHub Enterprise instance is using a private certificate, and setting up proxy support. See also Adding custom accept.json for Docker installation.

Docker run command to set up a Broker Client for GitHub Enterprise

Copy the following command to set up a fully configured Broker Client to analyze Open Source, IaC, Container, and Code files (with the Code Agent).

docker run --restart=always \
           -p 8000:8000 \
           -e BROKER_TOKEN=<secret-broker-token> \
           -e GITHUB_TOKEN=<secret-github-token> \
           -e GITHUB=<your.ghe.domain.com (no http/s)> \
           -e GITHUB_API=<your.ghe.domain.com/api/v3 (no http/s)> \
           -e GITHUB_GRAPHQL=<your.ghe.domain.com/api (no http/s)> \
           -e PORT=8000 \
           -e BROKER_CLIENT_URL=<http://broker.url.example:8000 (dns/IP:port)> \
           -e ACCEPT_IAC=tf,yaml,yml,json,tpl \
           -e ACCEPT_CODE=true \
       snyk/broker:github-enterprise

As an alternative to using the Docker run command, you can use a derived Docker image to set up the Broker Client integration. See Derived Docker images for the environment variables to override for the GitHub Enterprise integration.

Start the Broker Client container and verify the connection with GitHub Enterprise

Paste the Broker Client configuration to start the Broker Client container.

Once the container is up, the GitHub Enterprise Integrations page shows the connection to GitHub Enterprise and you can Add Projects.

Basic troubleshooting for Broker with GitHub Enterprise

Support of big manifest files (> 1Mb) for GitHub Enterprise

One reason that open Fix/Upgrade PRs or PR/recurring tests fail may be fetching big manifest files (> 1Mb). To address this issue, whitelist an additional Blob API endpoint in accept.json. This should be in a private array.

{
    "//": "used to get given manifest file",
    "method": "GET",
    "path": "/repos/:owner/:repo/git/blobs/:sha",
    "origin": "https://${GITHUB_TOKEN}@${GITHUB_API}"
}

To ensure the maximum possible security, Snyk does not enable this rule by default, as use of this endpoint means that the Snyk platform can theoretically access all files in this repository, because the path does not include specific allowed file names.

Additional troubleshooting for Broker with GitHub Enterprise

• Run docker logs <container id> to look for any errors, where container id is the GitHub Enterprise Broker container ID.

• Ensure relevant ports are exposed to GitHub Enterprise.