Drumato / promqlinter

A PromQL parser/type-checker/linter in GitHub Actions/CLI

promqlinter

A PromQL parser/type-checker/linter in GitHub Actions/CLI

Installation

$ go install github.com/Drumato/promqlinter@main

Features

• syntax/type check with prometheus/prometheus/promql/parser
• Use the default lint rules in GitHub Actions
  • defaults/denied-labels
  • defaults/denied-metric(WIP)
• A consistent framework to "Build Your Own PromQL Linter"
  • See Build Your Own PromQL Linter

GitHub Actions

See Using promqlinter in GitHub Actions.

CLI

$ ./bin/promqlinter -h
A PromQL linter with CLI/GitHub Actions

Usage:
  promqlinter [flags]

Examples:

        # lint a raw PromQL expression that is given from stdin
        echo -n 'http_requests_total{job="prometheus"}' | promqlinter

        # lint a raw PromQL expression in the PrometheusRule manifest
        promqlinter -i ./examples/manifests/sample.yaml

        # lint each raw PromQL expression in the PrometheusRule manifests in ./manifest
        promqlinter -r -i ./examples/manifests/

        # configure denied-label plugin
        # e.g., this example denies <vector{job="node_exporter", instance=".*"}
        promqlinter -r -i ./examples/manifests/ --denied-labels "job %PAIR% node_exporter,instance %PAIR% .*"

Flags:
  -d, --denied-labels string        the denied labels
  -h, --help                        help for promqlinter
  -i, --input-k8s-manifest string   the target PrometheusRule resource
  -f, --level-filter string         the diagnostic level filter(info/warning/error) (default "error")
  -r, --recursive                   determine whether the manifest search process should be recursive