Git Watch
0 likes781 views
Git Watch provides continuous deployment by monitoring a Git repository for changes and immediately deploying those changes, without requiring a continuous integration service. This middle ground approach only requires an internet connection for the Git repository and Git Watch server. Some examples of use cases include deploying a static GitHub repository to Firebase Hosting in under 20 seconds, deploying local static content changes in under 5 seconds, and deploying a Scala application to production in about 30 seconds after tests pass on commit. Git Watch allows for frequent, immediate deploys with little overhead.
Git Watch
- 1. Git Watch Minimalist Continuous Deployment https://git.watch/ by @ScalaWilliam 1 Google Slides comments welcome!
- 2. Typical automated deploy: polling - Eventual, not immediate + Very easy to do Git Repo Polling service 2
- 3. Better automated deploy: webhooks Git Repo HTTP server - Requires a public facing server + Immediate Hook handler 3
- 4. Middle ground: Git Watch Git Repo Git Watch Server + Needs only an internet connection + Immediate Git Watch Client 4
- 5. ● Get immediate feedback ● Continuously reduce technical debt ● Enforces good application design ○ Frequent deploys demand better failover strategies ○ Frequent deploys demand a better pipeline ● Shorter testing cycles ● Easy hotfixes Continuous Deployment 5
- 6. Use case: GitHub repository → Firebase Hosting ● Static content. ● Generate HTML ● Dynamic language (PHP) for dev. ● No CI, only sanity checks. ● Deploy in < 20 seconds. ● Can edit in GitHub for small fixes ● Edit locally for bigger tasks. ● Example: github.com/ScalaWilliam/milanohousecurt ains.co.uk ● Example: github.com/ScalaWilliam/ScalaWilliam.co m ● Great for teams, nobody responsible for deploys! 6
- 7. Use case: GitHub repository → local static deploy ● Want to make content-only changes to an app ● Don’t want to rebuild & redeploy whole app ● <5 seconds from master to deployed. ● Used in git.watch itself. 7
- 8. Use case: GitHub repository → Play/Scala deploy. ● Run tests before commit ● In Scala, errors caught at compile time ● Failed compilation ⇒ No deploy ● Deploys in ~30s ● Using in ○ https://git.watch itself ○ https://actionfps.com/ 8
- 9. Use case: GitHub → dynamic PHP deploy ● Used this previously, but ended up moving to: ○ Scala dynamic apps for apps ○ Firebase Hosting for websites ● However, not everyone has the patience in learning Scala - took me 3 months just to get comfortable ● Lets you do a sanity check before a deploy. ● Simply rsync on push to master! 9