Automatic merge from submit-queue (batch tested with PRs 42973, 41582)
Improve status manager unit testing
This is designed to simplify testing logic in the status manager, and decrease reliance on syncBatch. This is a smaller portion of #37119, and should be easier to review than that change.
It makes the following changes:
- creates convenience functions for get, update, and delete core.Action
- prefers using syncPod on elements in the podStatusChannel to using syncBatch to reduce unintended reliance on syncBatch
- combines consuming, validating, and clearing actions into single verifyActions function. This replaces calls to testSyncBatch(), verifyActions(), and ClearActions
- changes comments in testing functions into log statements for easier debugging
@Random-Liu
Automatic merge from submit-queue
Print dereferenced pod status fields when logging status update
Before: "Terminated:0xc421932af0"
After:"Terminated:&ContainerStateTerminated{ExitCode:0,Signal:0,Reason:Completed,Message:,StartedAt:0001-01-01 00:00:00 +0000 UTC,FinishedAt:2017-03-07 14:50:48 -0500 EST,ContainerID:docker://bd453bb969264b3ace2b3934a568af7679a0d51fee543a5f8a82429ff654970e,}"
"Ignoring same status for pod" messages already print status fully, these "Status for pod updated" messages should too IMO
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 40964, 42967, 43091, 43115)
Improve code coverage for pkg/kubelet/status/generate.go
**What this PR does / why we need it**:
Improve code coverage for pkg/kubelet/status/generate.go from #39559
Thanks.
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Automatic merge from submit-queue (batch tested with PRs 40239, 40397, 40449, 40448, 40360)
move the discovery and dynamic clients
Moved the dynamic client, discovery client, testing/core, and testing/cache to `client-go`. Dependencies on api groups we don't have generated clients for have dropped out, so federation, kubeadm, and imagepolicy.
@caesarxuchao @sttts
approved based on https://github.com/kubernetes/kubernetes/issues/40363
Enforce the following limits:
12kb for total message length in container status
4kb for the termination message path file
2kb or 80 lines (whichever is shorter) from the log on error
Fallback to log output if the user requests it.
