Focus on what matters: code How to use and develop a GitHub Actions workflow using Node.js With GitHub Actions (https://github.com/features/actions) you can automate your workflow from idea to production. Actions can be written in any language, but we will take a closer look in how to write our workflow using Node.js and interact with the full GitHub API.

1. GitHubActions
withNode.js
Focusonwhatmatters:code

2. Stefan Stölzle
SolutionArchitect
!stoe
"stefan@github.com
me_stoe

3. Developers’
Flow Today

4. MASTER
BRANCH COMMIT PULL REQUEST REVIEW READY MERGE
💬💬
💬
Check correct
branch name
⚡ server
Build
⚡ server
Check for contents
of PR + run linters
and tests
⚡ server
Check comment
⚡ server
Deploy + Notify
stakeholders
about deployment
⚡ server
Clean up
⚡ server

5. Project X Project Y
Project Z Project XY

6. How modular is it?

7. Maintainable?

8. Transparent?

9. Re-usable?

10. Speed of delivery?

11. Actions is an r(evolution) in
building workflows!

12. Actions enable all kinds of
developer automation

13. IFTTT
"ifthis,thenthat"

14. developer.github.com/actions

15. 26 events

16. github.com/features/actions
b e t a

17. 32k signups
in24hours
b e t a

18. Built by you, run by us

19. 🐳Executed as containers

20. Current runtime environment resources
• 1virtualCPU
• Upto3.75GBofmemory
• Remotenetworkaccess
• Environmentvariables describingcurrentworkflowcontext
• Writeaccesstothe filesystem
• 100GBofdiskspace

21. FROM debian:9.5-slim
# ...
COPY "entrypoint.sh" "/entrypoint.sh"
ENTRYPOINT ["/entrypoint.sh"]
Dockerfile
#!/bin/sh
set -e
echo "Hello Sencha Community Days"
entrypoint.sh

22. octoverse.github.com/projects#languages

23. JavaScript
• isthemostpopular
programminglanguageon
GitHub
• andhasbeenfor>5years

24. FROM node:10-slim
# ...
COPY package*.json ./
RUN npm ci
COPY . .
ENTRYPOINT ["node", "/entrypoint.js"]
Dockerfile
#!/usr/bin/env node
// github.com/JasonEtco/actions-toolkit
const {Toolkit} = require('actions-toolkit');
Toolkit.run(async tools => {
// ...
tools.log('Hello Sencha Community Days');
// ...
});
entrypoint.js

25. Demo

26. 🤞Live Hacking...

29. workflow "Test on push" {
on = "push"
resolves = ["test"]
}
action "build" {
uses = "actions/npm@master"
args = "install"
}
action "test" {
uses = "actions/npm@master"
needs = ["build"]
args = "test"
}
main.workflow

30. github.com/actions

31. github.com/marketplace
b e t a

32. github.com/nektos/act

35. Thank you
Stefan Stölzle
SolutionArchitect
! stoe
" stefan@github.com
me_stoe

37. Appendix

38. GitHub Action
default
github.com/sencha-community-days/sencha-community-days-action/tree/actions/npm

39. GitHub Action
default
github.com/sencha-community-days/sencha-community-days-action/tree/actions/npm

40. GitHub Action
docker
github.com/sencha-community-days/sencha-community-days-action/tree/actions/docker

41. GitHub Action
docker
github.com/sencha-community-days/sencha-community-days-action/tree/actions/docker

42. GitHub Action
local
github.com/sencha-community-days/sencha-community-days-action/tree/actions/local

43. GitHub Action
local
github.com/sencha-community-days/sencha-community-days-action/tree/actions/local

44. Resources
• https://github.com/features/actions
• https://developer.github.com/actions
• https://github.com/actions
• https://github.com/marketplace?
type=actions
• https://octoverse.github.com/
projects#languages
• https://github.com/nektos/act
• https://github.com/sencha-community-
days/sencha-community-days-action
• https://github.com/stoe/xo-action
• https://github.com/JasonEtco/actions-
toolkit