yaml
on:
push:
paths:
- 'apps/web/**'
- 'packages/ui/**'
- '.github/workflows/web.yml' Notes
Path filters are one of the easiest ways to cut CI minutes in monorepos.
CI/CD Pipelines: Monorepos, Templates, and Maintainability
Selective execution, shared scripts, naming, and maintainable organization for growing automation estates.
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Avoid running everything on every change
Scope work to only the apps and packages that changed.
yaml
web_test:
stage: test
rules:
- changes:
- apps/web/**/*
- packages/ui/**/*Notes
`rules:changes` helps keep large repositories efficient and focused.
Generate jobs per package
Drive job fan-out from changed package lists or matrix inputs.
yamlANYmatrixpackage
yaml
strategy:
matrix:
package: [api, web, worker]Notes
Static or generated matrices work well for polyrepo-like monorepo segments.
Make pipelines maintainable
Organize by shared templates and clearly named workflows.
Wrap repeated commands in repo scripts
Keep YAML small by moving logic into versioned scripts.
bashANYscriptsmaintainability
bash
./scripts/ci/install.sh
./scripts/ci/test.sh
./scripts/ci/build.shNotes
Thin YAML plus reusable scripts is often easier to test and review than giant inline shell blocks.
Use predictable workflow names
Name workflows by concern or application area.
textANYnamingorganization
text
ci-web.yml
ci-api.yml
deploy-production.yml
nightly-maintenance.ymlNotes
Good naming helps teams navigate automation quickly as the number of workflows grows.
Expose pipeline health publicly
Add workflow status badges to docs or README files.
markdownANYbadgedocs
markdown
Notes
Status badges are simple but useful for surfacing build health in public repos and internal dashboards.
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