What's New in Argo CD 2.10? templatePatch for ApplicationSets, Server Side Diff, and more!

The latest release of Argo CD is out, version 2.10! This release includes:
- The `templatePatch` field for ApplicationSets, which allows you to define templates without being limited to string-only fields.
- Server-Side Diff to address issues with the Server-Side Apply (SSA) sync option.
- PostDelete hook Support to clean up resources after an Application has been deleted.
- Application Controller Sync Jitter to allow the repo-server to have a more evenly distributed load
- Kustomize Components support to provide a powerful way to modularize and reuse configuration, from the Application manifest.
- Better support for Apps in Any Namespace & Notifications, so end-users have the ability to configure notifications for their Argo CD application in their namespaces.
- Status panel extensions to display extra information on the application's status.
We go through a hands-on example of each of these new features in this video! See the repo here: github.com/morey-tech/argocd-...
Argo CD 2.10 release candidate blog post:
blog.argoproj.io/argo-cd-v2-1...
Start a free trial of the Akuity Platform, a hosted Argo CD offering with innovation beyond the open-source offering: hubs.li/Q02l2-7V0
Follow Akuity on LinkedIn: / akuityio
Follow Nicholas Morey on LinkedIn: / nicholas-morey
Free course on CD and GitOps using Argo CD: academy.akuity.io/courses/git...
For more knowledge about Argo and GitOps, check out the Akuity Blog: akuity.io/blog/ and the Awesome Argo list on GitHub github.com/akuity/awesome-argo
Chapters:
0:00 Intro
1:39 Try it for yourself
2:30 ApplicationSet templatePatch
7:55 ServerSideDiff Compare Option
12:02 Kustomize Component Support
14:03 PostDelete Hook
14:55 Sync Jitter
18:00 Notifications for Applications in Any Namespace
20:07 Status Panel Extensions
21:34 Outro

[@delucabruno]

Really good explanation! thanks for sharing this!

[@MohammedNoureldin]

Thanks a lot mate for the great summary! I really like your channel

[@akuityio]

Glad you enjoy it!

[@forbiddenera]

Hoping templatePatch works.. a lot of times you want specific fields in an app, like I want to use git generator for core services like argo and prometheus-operator with the latter requiring serverside apply and stuff

[@forbiddenera]

Looks like it might.. love how the kustomize tag override for argo works for "2.9.0-sha" but "2.10.1" broke argo with it needing to be "v2.10.1".. had to manually kubectl edit deployments and the application controller pod to add the v to get it back 😂 now let's try this templatepatch

[@mihaigalos279]

Cool stuff. Would the templatePatch also allow kustomize-style delete operations?

[@morey-tech-akuity]

Not in it's current capacity. You'd need to use conditionals to overwrite the values instead of deleting them (e.g. setting to null or false). That would be a great feature request!