Tool for generating Wolfi security databases

To create a security database for a given project, you can do something like:

$ wolfi-secdb generate ./path/to/source-repo \
   --base-url https://packages.wolfi.dev/... \
   --output-filename security/your-repo-name.json \
   --repo-name your-repo-name

For the Wolfi distribution, there is a GitHub action located in chainguard-dev/actions.

Wolfi security databases are based on Alpine's security database format, presenting a serialized JSON graph.

The root of the graph has these fields:

• urlprefix: The prefix for all URLs. In Wolfi itself, this is https://packages.wolfi.dev.

• apkurl: The pattern used to deduce the package URL. In Wolfi itself, this is {{urlprefix}}/{{reponame}}/{{arch}}/{{pkg.name}}-{{pkg.ver}}.apk

• reponame: The name of the repository, such as bootstrap/stage3.

• archs: The architectures for packages built in the repository. In Wolfi itself, this is presently [ "x86_64" ].

• packages: A list of package objects which have security updates.

A package object is a JSON object which has a single pkg object underneath it, which has the following fields:

• name: The name of the package.

• secfixes: An object containing version identifiers and lists of well-known vulnerability identifiers fixed by the package version.

{
  "urlprefix": "https://packages.wolfi.dev",
  "apkurl": "{{urlprefix}}/{{reponame}}/{{arch}}/{{pkg.name}}-{{pkg.ver}}.apk",
  "reponame": "example/repo",
  "archs": ["x86_64"],
  "packages": [
    {
      "pkg": {
        "name": "foo",
        "secfixes": {
          "1.2.3-r1": [
            "CVE-9999-99999"
          ]
        }
      }
    }
  ]
}