$30 off During Our Annual Pro Sale. View Details »
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
GitHub Actions 2021-12-16
Search
sullis
December 16, 2021
Programming
0
59
GitHub Actions 2021-12-16
GitHub Actions overview
December 16, 2021
sullis
December 16, 2021
Tweet
Share
More Decks by sullis
See All by sullis
Dependency Management for Java - Seattle 2025-11-18
sullis
0
10
Dependency Management for Java - Portland - 2025-11-04
sullis
0
12
Dependency management for Java applications 2025-09-11
sullis
0
18
S3 NYC Iceberg meetup 2025-07-10
sullis
0
46
Amazon S3 Chicago 2025-06-04
sullis
0
110
Amazon S3 Boston 2025-05-07
sullis
0
70
Netty ConFoo Montreal 2025-02-27
sullis
0
120
GitHub Actions ConFoo Montreal 2025-02-26
sullis
0
78
Netty Portland Java User Group 2025-02-18
sullis
0
20
Other Decks in Programming
See All in Programming
AIコーディングエージェント(skywork)
kondai24
0
120
令和最新版Android Studioで化石デバイス向けアプリを作る
arkw
0
130
【Streamlit x Snowflake】データ基盤からアプリ開発・AI活用まで、すべてをSnowflake内で実現
ayumu_yamaguchi
1
110
TypeScript 5.9 で使えるようになった import defer でパフォーマンス最適化を実現する
bicstone
1
1k
AIコーディングエージェント(Manus)
kondai24
0
120
ソフトウェア設計の課題・原則・実践技法
masuda220
PRO
24
21k
WebRTC と Rust と8K 60fps
tnoho
2
1.9k
FluorTracer / RayTracingCamp11
kugimasa
0
180
エディターってAIで操作できるんだぜ
kis9a
0
650
CSC305 Lecture 15
javiergs
PRO
0
250
Querying Design System デザインシステムの意思決定を支える構造検索
ikumatadokoro
1
1.2k
Evolving NEWT’s TypeScript Backend for the AI-Driven Era
xpromx
0
260
Featured
See All Featured
We Have a Design System, Now What?
morganepeng
54
7.9k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
55
3.1k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
508
140k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
52
5.7k
Mobile First: as difficult as doing things right
swwweet
225
10k
Building Applications with DynamoDB
mza
96
6.8k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.2k
The Cost Of JavaScript in 2023
addyosmani
55
9.3k
It's Worth the Effort
3n
187
29k
How Fast Is Fast Enough? [PerfNow 2025]
tammyeverts
3
380
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4.1k
Into the Great Unknown - MozCon
thekraken
40
2.2k
Transcript
GitHub Actions 2021-12-16 Sean Sullivan
Agenda GitHub Actions Core concepts Security
GITHUB ACTIONS
“GitHub Actions help you automate your software development work fl
ows” source: GitHub.com
“You can write individual tasks, called actions, and combine them
to create a custom work fl ow” source: GitHub.com
Getting started
Actions tab
Actions tab Starter Work fl ow
Work fl ow editor
Work fl ow editor
Work fl ow editor
Work fl ow editor checkout
Work fl ow editor setup-java
Work fl ow editor run: sbt test
Work fl ow editor click
Work fl ow editor click
.github/work fl ows
Actions tab
Actions tab
Actions tab
Ruby On Rails uses GitHub Actions
Ruby on Rails
Ruby on Rails
Ruby on Rails
Ruby on Rails
Redis Dropwizard Log4j Open source projects using GitHub Actions twilio-java
Guardrail Net fl ix Zuul
Core concepts
Events Actions Work fl ows
create deployment deployment_status issue created pull_request push schedule label created
(and many more) Events trigger work fl ows
Work fl ows are custom automated processes that you can
set up in your repository to build, test, package, release, or deploy source: GitHub.com
GitHub webhooks GitHub Actions work fl ows
Actions are individual tasks that you can combine to create
jobs source: GitHub.com
You can create custom Actions or use Actions provided by
the GitHub community source: GitHub.com
action.yml declares the inputs and outputs for an action source:
GitHub.com
Types of Actions: JavaScript Docker source: GitHub.com
“GitHub Actions is available with GitHub Free, GitHub Pro, GitHub
Team, and GitHub Enterprise” source: GitHub.com
What if I already have an existing CI tool enabled?
Keep your existing CI tool and enable GitHub Actions
Evaluate both CI tools running side-by-side
Actions runtime Runners Virtual Environments
Runners GitHub-hosted Self-hosted
Hosted Runners “GitHub hosts Linux and Windows runners on Standard_DS2_v2
virtual machines in Microsoft Azure with the GitHub Actions runner application installed” source: GitHub.com
Self-Hosted Runners “Self-hosted runners can be physical, virtual, container, on-premises,
or in a cloud” source: GitHub.com
Self-Hosted Runners
Self-Hosted Runners C Sharp
Virtual Environments
Ubuntu 20.04 Ubuntu 18.04 Linux support
Third party actions
AWS Actions Azure Actions Google Cloud Actions
Pulumi Actions Terraform Actions Docker Actions
https://github.com/aws-actions
None
AWS: action.yml
Security
Secrets access protected keys using the secrets context object source:
GitHub.com
Secrets source: GitHub.com
Secrets source: GitHub.com
Secrets source: GitHub.com
Secrets source: GitHub.com
Self-Hosted Runners “do not use self- hosted runners with public
repositories” source: GitHub.com
Self-Hosted Runners “Forks of your public repository can potentially run
dangerous code on your self-hosted runner machine” source: GitHub.com
Final thoughts
“CI ensures that the code that we create, as a
team, works by providing us with rapid feedback on any problems”
GitHub Actions YAML Automation Conclusion
Thank you twitter.com/tinyrobots github.com/sullis
Bonus slides
None
THE END