llm-d-infra

Repo for CI and infrastructure required to maintain llm-d org member repos.

Reusable Workflows

This repo provides reusable GitHub Actions workflows that standardize CI/CD across all llm-d repos. Instead of copy-pasting workflow files, each repo calls the shared version with a thin caller workflow.

Available Workflows

Workflow	Purpose	Caller Trigger
reusable-prow-commands.yml	Prow-style commands (/lgtm, /approve, /assign, etc.)	issue_comment
reusable-prow-automerge.yml	Auto-merge PRs with lgtm label	schedule (every 5 min)
reusable-prow-remove-lgtm.yml	Remove lgtm label on PR push	pull_request
reusable-stale.yml	Mark stale issues/PRs, then rotten, then close	schedule (daily)
reusable-unstale.yml	Remove stale/rotten labels on activity	issues + issue_comment
reusable-signed-commits.yml	Enforce signed/DCO commits	pull_request_target
reusable-non-main-gatekeeper.yml	Block PRs to non-main branches	pull_request

Usage

Create a thin caller workflow in your repo's .github/workflows/ directory. Each caller is typically 8-12 lines:

# .github/workflows/prow-github.yml
name: Prow Commands
on:
  issue_comment:
    types: [created]
jobs:
  prow:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-prow-commands.yml@main
    permissions:
      issues: write
      pull-requests: write

# .github/workflows/prow-pr-automerge.yml
name: Prow Auto-merge
on:
  schedule:
    - cron: "*/5 * * * *"
jobs:
  auto-merge:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-prow-automerge.yml@main

# .github/workflows/prow-pr-remove-lgtm.yml
name: Prow Remove LGTM
on: pull_request
jobs:
  remove-lgtm:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-prow-remove-lgtm.yml@main

# .github/workflows/stale.yaml
name: Mark Stale Issues
on:
  schedule:
    - cron: '0 1 * * *'
jobs:
  stale:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-stale.yml@main
    permissions:
      issues: write
      pull-requests: write

# .github/workflows/unstale.yaml
name: Unstale Issues
on:
  issues:
    types: [reopened]
  issue_comment:
    types: [created]
jobs:
  unstale:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-unstale.yml@main
    permissions:
      issues: write

# .github/workflows/ci-signed-commits.yaml
name: Check Signed Commits
on: pull_request_target
jobs:
  signed-commits:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-signed-commits.yml@main
    permissions:
      contents: read
      pull-requests: write

# .github/workflows/non-main-gatekeeper.yml
name: Non-Main Gatekeeper
on:
  pull_request:
    types: [opened, edited, synchronize, reopened]
jobs:
  gatekeeper:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-non-main-gatekeeper.yml@main

Customization

Most workflows accept optional inputs. See each workflow file for available inputs and defaults:

jobs:
  stale:
    uses: llm-d/llm-d-infra/.github/workflows/reusable-stale.yml@main
    with:
      days-before-issue-stale: 60  # override default of 90

Templates

The templates/ directory contains canonical configuration files for adoption across repos:

Template	Purpose	Copy To
dependabot.yml	Automated dependency updates for Go, Actions, Docker	.github/dependabot.yml
.pre-commit-config.yaml	File hygiene, shell/Dockerfile/markdown/YAML linting	repo root

Migrating Existing Repos

To migrate from copy-pasted workflows to shared reusable ones:

1. Replace each local workflow file with the corresponding thin caller (see examples above)
2. Remove any duplicate logic now handled by the reusable workflow
3. Test by opening a PR and verifying workflows trigger correctly

Sync Workflow

The sync-caller-workflows.yml checks which consuming repos still use local copies vs. shared reusable workflows. It runs when reusable workflows change and generates an adoption report in the workflow summary.