pint

pint is a Prometheus rule linter.

Usage

There are two modes it works in:

• CI PR linting
• Ad-hoc linting of a selected files or directories

Pull Requests

It currently supports git for which it will find all commits on the current branch that are not present in parent branch and scan all modified files included in those changes.

Results can optionally be reported using BitBucket API or GitHub API to generate a report with any found issues. If you are using BitBucket API then each issue will create an inline annotation in BitBucket with a description of the issue. If you are using GitHub API then each issue with appear as a comment on your pull request.

Exit code will be one (1) if any issues were detected with severity Bug or higher. This permits running pint in your CI system whilst at the same you will get detailed reports on your source control system.

Ad-hoc

Lint specified files and report any found issue.

You can lint selected files:

pint lint rules.yml

or directories:

pint lint path/to/dir

or both:

pint lint path/to/dir file.yml path/file.yml path/dir

Quick start

Requirements:

• Git
• Go >=1.17

1. Build the binary:

   git clone https://github.com/cloudflare/pint.git
   cd pint
   make build

2. Run a simple syntax check on Prometheus alerting or recording rules file(s).

   ./pint lint /etc/prometheus/*.rules.yml

3. Configuration file is optional, but without it pint will only run very basic syntax checks. See CONFIGURATION.md for details on config syntax. Check examples dir for sample config files. By default pint will try to load configuration from .pint.hcl, you can specify a different path using --config flag:

   ./pint --config /etc/pint.hcl lint /etc/prometheus/rules/*.yml