Snyk Open Source-specific CI/CD strategies

These strategies are useful to teams using the Snyk SCA (Software Composition Analysis) testing features.

Use CLI flags like --fail-on and --severity-threshold to customize the failure status for the build task. For more advanced usage, you can use --json to generate a JSON file containing the full vulnerability report, and set your own build failure status based on the JSON data.

Gradle and Scala

• For "multi-project" configurations, test all sub-projects. Use this option with the monitor or test command: --all-sub-projects.

• To scan specific configurations, select certain values of configuration attributes to resolve the dependencies. Use this option with the test or monitor command: --configuration-attributes=.

Python

• Snyk uses Python to scan and find your dependencies. Snyk needs the Python version to start scanning, and defaults to "python." If you are using multiple Python versions, use this option with the test or monitor command to specify the correct Python command for execution: --command=. Example:

  snyk test --command=python3

• The setup.py file must be targeted. Use the command snyk test --file=setup.py

• If you scan a Pip project and use the --file= option because your manifest file is not the standard requirements.txt, you must use the following option to specify Pip as the package manager --package-manager=pip.

.Net

If you use a .sln file, you can specify the path to the file, and Snyk scans all the sub projects that are part of the repo, for example:

snyk test --file=sln/.sln

Yarn

For Yarn workspaces use the --yarn-workspaces option to test and monitor your packages. The root lockfile will be referenced for scans of all the packages. Use the --detection-depth option to find sub-folders that are not auto discovered by default.

Note Yarn workspaces support is for the snyk test and snyk monitor commands only at this time.

Example: scan only the packages that belong to any discovered workspaces in the current directory and five sub-directories deep.

snyk test --yarn-workspaces --detection-depth=6

You can use a common .snyk policy file if you maintain ignores and patches in one place to be applied for all detected workspaces, by providing the policy path as follows:

snyk test --yarn-workspaces --policy-path=src/.snyk

Monorepo

Some customers have complex projects, with multiple languages, package managers, and projects in a single repository. To facilitate this, you can take different approaches:

• As you build each project and language, add a directive to run snyk test and target a specific project file, for example:

  snyk test --file=package.json

• After you install the dependencies of each project, make a similar call pointing to the specific artifact (such as pom.xml). This is fast and efficient, but can be difficult to scale, especially if you are not familiar with the project.

• For most Gradle projects, using --all-projects works, as it invokes gradle-specific options behind the scenes in the form of: snyk test --file=build.gradle --all-sub-projects when it finds the build file as part of the --all-projects search.

• Gradle may require additional configuration parameters. If so, target the other artifacts using --file= for each manifest of the other languages and package managers. You must then use --all-sub-projects and potentially --configuration-matching to scan a complex Gradle project.

See Snyk for Java and Kotlin for more information.