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# Autoscaling Special Interest Group

Covers development and maintenance of components for automated scaling in Kubernetes. This includes automated vertical and horizontal pod autoscaling, initial resource estimation, cluster-proportional system component autoscaling, and autoscaling of Kubernetes clusters themselves.

The [charter](charter.md) defines the scope and governance of the Autoscaling Special Interest Group.

## Meetings
*Joining the [mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-autoscaling) for the group will typically add invites for the following meetings to your calendar.*
* Regular SIG Meeting: [Mondays at 16:00 Poland](https://zoom.us/j/944410904) (weekly). [Convert to your timezone](http://www.thetimezoneconverter.com/?t=16:00&tz=Poland).
  * [Meeting notes and Agenda](https://docs.google.com/document/d/1RvhQAEIrVLHbyNnuaT99-6u9ZUMp7BfkPupT2LAZK7w/edit).

## Leadership

### Chairs
The Chairs of the SIG run operations and processes governing the SIG.

* Guy Templeton (**[@gjtempleton](https://github.com/gjtempleton)**), Skyscanner
* Marcin Wielgus (**[@mwielgus](https://github.com/mwielgus)**), Google

## Contact
- Slack: [#sig-autoscaling](https://kubernetes.slack.com/messages/sig-autoscaling)
- [Mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-autoscaling)
- [Open Community Issues/PRs](https://github.com/kubernetes/community/labels/sig%2Fautoscaling)
- GitHub Teams:
    - [@kubernetes/sig-autoscaling-api-reviews](https://github.com/orgs/kubernetes/teams/sig-autoscaling-api-reviews) - API Changes and Reviews
    - [@kubernetes/sig-autoscaling-bugs](https://github.com/orgs/kubernetes/teams/sig-autoscaling-bugs) - Bug Triage and Troubleshooting
    - [@kubernetes/sig-autoscaling-feature-requests](https://github.com/orgs/kubernetes/teams/sig-autoscaling-feature-requests) - Feature Requests
    - [@kubernetes/sig-autoscaling-misc](https://github.com/orgs/kubernetes/teams/sig-autoscaling-misc) - General Discussion
    - [@kubernetes/sig-autoscaling-pr-reviews](https://github.com/orgs/kubernetes/teams/sig-autoscaling-pr-reviews) - PR Reviews
    - [@kubernetes/sig-autoscaling-proposals](https://github.com/orgs/kubernetes/teams/sig-autoscaling-proposals) - Design Proposals
    - [@kubernetes/sig-autoscaling-test-failures](https://github.com/orgs/kubernetes/teams/sig-autoscaling-test-failures) - Test Failures and Triage
- Steering Committee Liaison: Tim Pepper (**[@tpepper](https://github.com/tpepper)**)

## Working Groups

The following [working groups][working-group-definition] are sponsored by sig-autoscaling:
* [WG Batch](/wg-batch)


## Subprojects

The following [subprojects][subproject-definition] are owned by sig-autoscaling:
### addon-resizer
- **Owners:**
  - [kubernetes/autoscaler/addon-resizer](https://github.com/kubernetes/autoscaler/blob/master/addon-resizer/OWNERS)
### cluster-autoscaler
- **Owners:**
  - [kubernetes/autoscaler](https://github.com/kubernetes/autoscaler/blob/master/OWNERS)
### horizontal-pod-autoscaler
- **Owners:**
  - [kubernetes/api/autoscaling](https://github.com/kubernetes/api/blob/master/autoscaling/OWNERS)
  - [kubernetes/kubernetes/pkg/controller/podautoscaler](https://github.com/kubernetes/kubernetes/blob/master/pkg/controller/podautoscaler/OWNERS)
### scale-client
- **Owners:**
  - [kubernetes/client-go/scale](https://github.com/kubernetes/client-go/blob/master/scale/OWNERS)
### vertical-pod-autoscaler
- **Owners:**
  - [kubernetes/autoscaler](https://github.com/kubernetes/autoscaler/blob/master/OWNERS)

[subproject-definition]: https://github.com/kubernetes/community/blob/master/governance.md#subprojects
[working-group-definition]: https://github.com/kubernetes/community/blob/master/governance.md#working-groups
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## Concerns
* autoscaling of clusters,
* horizontal and vertical autoscaling of pods,
* setting initial resources for pods,
* topics related to monitoring pods and gathering their metrics (e.g.: Heapster)

## Demo and Presentation Guidelines

If you want to demo at SIG Autoscaling, we have some guidelines:

- Demos should talk about *open-source* projects relevant to Kubernetes autoscaling, such as:

  * Prototypes for features to be added to Kubernetes
  * Projects that fill gaps in our infrastructure that we might want to address
  * Alternative approaches to what we do now that we may want to research
 
- Demos and presentations should be geared towards a techincal audience.

- Demos and presentations should not talk about company history or background,
  except to provide context for a usecase or issue:
  
  * "We're a retail company, and people don't shop as much during at 3am, so we generally
  see patterns of traffic around times" is acceptable.
  
  * Giving a company elevator pitch is not acceptable.

- Non-demo presentations should focus on usecases and issues.  A good rule of thumb is that
  content should be relevant in some form to a design doc or KEP's motivation or background
  sections.  If it's not, it probably doesn't belong in the presentation.

- Demos and presentations *should not pitch products*.  If you want to talk about a product that's
  recently been open-sourced, focus on it from the perspective of why it's useful to the *community*.

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