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Knative Serving release v0.5.0

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@knative-prow-releaser-robot knative-prow-releaser-robot released this 02 Apr 17:02
· 2 commits to release-0.5 since this release
v0.5.0
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Autoscaling

Bucketize autoscaling metrics by timeframe (#3289 - thanks @markusthoemmes)

Stats are averaged in each specific timeframe vs. averaged over the whole window. Fixes #2977.

Prevent double counting by the autoscaler (#3477 - thanks @hohaichi)

Let the queue report a concurrency metric for proxied requests, and the autoscaler discount this concurrency when making scaling decisions. Fixes bug (#3301).

Scrape queue-proxy metrics in autoscaler (#3149, thanks @yanweiguo)

Scrape queue-proxy metrics in autoscaler instead of pushing metrics from queue-proxy to autoscaler via websocket connection. Remove the websocket usage in queue-proxy. Fixes bugs #2203, #1927.

Bug Fixes / Cleanups

  • Doc update for scale annotations lifetime (#3461 - thanks @yanweiguo) resolving bug (#2720)
  • Surface events for all reconciliation failures (#3462 - thanks @mattmoor)---fixes #2941.
  • Only add KPA label to a K8S service of a revision if KPA is used (#3498 - thanks @yanweiguo)---fixes #2606 (HPA and KPA controllers are getting wrong class PAs)

Core API

Surface events on reconciliation failures (thanks @mattmoor)

Changes boilerplate to surface reconciliation failures in addition to existing logging entries already in place. (#3462) which fixes bug (#2941).

Several Revision default values are now configurable (thanks @mattmoor)

A new ConfigMap in knative-serving called config-defaults enables the customization of the default CPU resource request and request timeout (#3546).

Add a url: to Service/Route status (thanks @dgerd)

A new url: field in the status.traffic block of Service and Route is displayed to enable discovery of the generated URL for name: sub-routes (#3526). This field is only present when name: is used for a traffic target. See the url: field for Route and Service in spec.md

More conformance tests:

  • Validating user securityContext is reflected in container. (thanks @dgerd)
    • This change also adds the group information to the runtime test image, but we do not validate this as 1. it is not currently part of the runtime contract and 2. Setting group is currently an alpha feature that does not work on many Kubernetes clusters. See kubernetes/enhancements#213 - (#3423)
  • Validating that metadata.generateName can be used instead of metadata.name (thanks @brandone-mabey)
    • Add testing to ensure that metadata.generateName can be used instead of metadata.name to specify names for services, routes, and configurations. (#3292) fixing (#3183)

Bug Fixes / Cleanups:

  • CPU requests is now defaulted in the webhook (thanks @mattmoor) (#3529)
  • Fixed broken deploy.sh **(thanks @adrchunha) **(#3367)
  • Dropped functional dependency on 'configurationMetadaraGeneration' Label **(thanks @pivotal-joshua-rider) **(#3325)

Networking

Define 'Certificate' CRD for Auto TLS (thanks @ZhiminXiang)

As part of work in #1964, define an internal CRD Certificate to make TLS provision more pluggable by having the Certificate Controller request an SSL certificate according to the information in Certificate object that is being created. (#3050)

Hide /quitquitquit endpoint of queue-proxy #3279 (thanks @xtreme-andrew-su)

We hide the /quitquitquit endpoint of queue-proxy, so that it can only be lameducked by the kubelet during shutdown.

GRPC streaming now works on cold start #3239 (thanks @mattmoor)

After a service is scaled-to-zero, a streaming gRPC request should return successfully.

Istio 1.0.7

Update Istio template to 1.0.7.

Health check on cold starts #2856 (thanks @mattmoor)

Activator avoids unnecessary retries by performing health-checking of Revision service after cold start.

Bug fixes / Cleanups:

  • Fix the authority bug (affected GRPC) #3370 (thanks @tanzeeb)
  • Eliminate the request size limit on cold start #3359 (thanks @mattmoor)
  • Add Activator readiness probe for improved availability #2857 (thanks @mattmoor)

Monitoring

Write request logs from queue proxy #3561 (thanks @mdemirhan)

Queue proxy now has the ability to write request logs to stdout. This functionality already exists in Istio mesh and the reason for the duplication here is to move towards eliminating our dependency on Istio's mesh functionality.

Write request metrics from queue proxy #3596 (thanks @yanweiguo)

Queue proxy now has the ability to generate request count and latency metrics. This functionality already exists in Istio mesh and the reason for the duplication here is to move towards eliminating our dependency on Istio's mesh functionality.

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