K9s Lint workflow (derailed/k9s)

The K9s Lint workflow from derailed/k9s, explained and optimized by Latchkey.

What it does

This is the K9s Lint workflow from the derailed/k9s repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

name: K9s Lint

on:
  pull_request:
    branches: [ master ]

jobs:
  golangci:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v6.0.3

      - name: Install Go
        uses: actions/setup-go@v6.5.0
        with:
          go-version-file: go.mod
          cache-dependency-path: go.sum

      - name: Lint
        uses: golangci/golangci-lint-action@v9.3.0
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          version: v2.6

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: K9s Lint
 
on:
  pull_request:
    branches: [ master ]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  golangci:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - name: Checkout Code
        uses: actions/checkout@v6.0.3
 
      - name: Install Go
        uses: actions/setup-go@v6.5.0
        with:
          go-version-file: go.mod
          cache-dependency-path: go.sum
 
      - name: Lint
        uses: golangci/golangci-lint-action@v9.3.0
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          version: v2.6

What changed

• Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
• Cancel superseded runs when a branch or PR gets a newer push.
• Add a job timeout so a hung step cannot burn hours of runner time.

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow