gha-pipelines

name	gha-pipelines
description	Create and modify GitHub Actions CI/CD workflows for the homelab repository. Covers validation pipelines, OCI artifact promotion, and infrastructure testing. Use when: (1) Creating new GitHub Actions workflows, (2) Modifying existing CI/CD pipelines, (3) Adding validation or testing stages, (4) Debugging workflow failures. Triggers: "github actions", "workflow", "ci/cd", "pipeline", "gha", "build artifact", "validation workflow", "ci pipeline"
user-invocable	false

GitHub Actions Pipelines

This repository uses mise for tool version management so CI and local dev use identical versions. Delegate to Taskfile commands, not raw CLI. Follow homelab-specific conventions below; for generic GHA patterns (matrix builds, github-script, action catalog), see the global gha-pipelines skill.

Core Patterns

Tool setup — always jdx/mise-action@v3, never apt-get/brew:

steps:
  - uses: actions/checkout@v6
  - uses: jdx/mise-action@v3
  - run: task k8s:validate

Actions reference:

Need	Action
Checkout	actions/checkout@v6
Tool setup	jdx/mise-action@v3 (reads .mise.toml)
GHCR login	docker/login-action@v3
GitHub API	actions/github-script@v7
Flux CLI	fluxcd/flux2/action@v2

Path-based triggers — always include the workflow file itself and .mise.toml:

on:
  pull_request:
    paths:
      - "kubernetes/**"
      - ".github/workflows/kubernetes-validate.yaml"
      - ".mise.toml"
      - ".taskfiles/kubernetes/**"
  workflow_dispatch:

YAML schema comment on every workflow file:

---
# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json

Permissions — always minimal:

permissions:
  contents: read
  packages: write   # Only when pushing to GHCR
  statuses: read    # Only when reading commit status events

Workflow Inventory

Workflow	Trigger	Purpose
kubernetes-validate.yaml	PR (kubernetes/)	Lint, expand ResourceSets, build, template, kubeconform, pluto
infrastructure-validate.yaml	PR (infrastructure/)	Format checks, module tests (matrix per module)
renovate-validate.yaml	PR (renovate config)	Validate Renovate configuration
build-platform-artifact.yaml	Push to main (kubernetes/)	Build OCI artifact, tag for integration
tag-validated-artifact.yaml	Status event / manual	Promote validated artifact to stable semver
renovate.yaml	Scheduled (hourly)	Dependency update automation
label-sync.yaml	Scheduled / manual	Sync GitHub labels

OCI Promotion Pipeline

For full pipeline tracing and debugging, see the promotion-pipeline skill.

Key design decisions when modifying these workflows:

• Integration polls with semver >= 0.0.0-0 (accepts -rc.N); live polls >= 0.0.0 (stable only)
• tag-validated-artifact has idempotency guard — checks for existing validated-* tag before re-tagging (Flux Alerts fire on every reconciliation cycle)
• Build workflow queries GHCR for latest stable tag, bumps patch, creates next RC

New Validation Workflow Template

---
# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
name: <Domain> Validate

on:
  pull_request:
    paths:
      - "<domain>/**"
      - ".github/workflows/<domain>-validate.yaml"
      - ".mise.toml"
  workflow_dispatch:

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - uses: jdx/mise-action@v3
      - run: task <domain>:validate

Anti-Patterns

• NEVER install tools with apt-get or brew — use mise
• NEVER use raw curl/jq for GitHub API — use actions/github-script
• NEVER hardcode versions in workflow files — versions come from .mise.toml or versions.env
• NEVER use permissions: write-all — specify exact permissions needed
• NEVER skip workflow_dispatch — all workflows support manual runs

Cross-References

• .github/CLAUDE.md — Declarative workflow architecture
• promotion-pipeline skill — Debugging promotion failures
• .taskfiles/CLAUDE.md — Task commands used in workflows