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Revert enable PodPreset admission and also enable settings.k8s.io/v1a…
…lpha1 api resource
**What this PR does / why we need it**:
Enable PodPreset admission for there are alpha feature test cases covering it. Simultaneously enable sttings.k8s.io/v1alpha1 api resource.
Fixes#63843
**Release note**:
```release-note
NONE
```
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New event exporter config with support for new stackdriver resources
New event exporter, with support for use new and old stackdriver resource model.
This should also be cherry-picked to release-1.10 branch, as all fluentd-gcp components support new and stackdriver resource model.
```release-note
Update event-exporter to version v0.2.0 that supports old (gke_container/gce_instance) and new (k8s_container/k8s_node/k8s_pod) stackdriver resources.
```
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Deprecate InfluxDB cluster monitoring
InfluxDB cluster monitoring addon will no longer be supported and will be removed in k8s 1.12.
Default monitoring solution will be changed to `standalone`.
Heapster will still be deployed for backward compatibility of `kubectl top`
```release-note
Stop using InfluxDB as default cluster monitoring
InfluxDB cluster monitoring is deprecated and will be removed in v1.12
```
cc @piosz
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remove PodPreset and enable resources for Priority admission plugins in e2e-gce
**What this PR does / why we need it**:
e2e-gce start kube-apiserver without admission PodPreset and enable resources for Priority
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#62377
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Use the logging agent's node name as the metadata agent URL.
The Stackdriver Logging agent should use the node's hostname when it constructs the Stackdriver Metadata Agent's URL, currently, it's using the GKE Master's hostname, which is a bug.
**Release note:**
```release-note
[fluentd-gcp addon] Use the logging agent's node name as the metadata agent URL.
```
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Update all script shebangs to use /usr/bin/env interpreter instead of /bin/interpreter
This is required to support systems where bash doesn't reside in /bin (such as NixOS, or the *BSD family) and allow users to specify a different interpreter version through $PATH manipulation.
https://www.cyberciti.biz/tips/finding-bash-perl-python-portably-using-env.html
```release-note
Use /usr/bin/env in all script shebangs to increase portability.
```
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Add prometheus cluster monitoring addon.
This PR adds new cluster monitoring addon based on prometheus.
It adds prometheus deployment with e2e tests.
Additional components will be added iterativly in future.
Manifests based on current Helm chart.
At current state it's not intended for production use.
cc @piosz @kawych @miekg
```release-note
Add prometheus cluster monitoring addon to kube-up
```
/sig instrumentation
/kind feature
/priority important-soon
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Reimplement migrate-if-needed.sh in go
The `migrate-if-needed.sh` script was already partially implemented in go (see the attachlease and rollback sub-dirs), but was still unnecessarily difficult to understand and test. This closely reimplements the original logic but with improved code structure, error handling and testing.
Where possible, go code that was previously executed as separate binaries is now statically linked into a single 'migrate' go cobra CLI app, which is then thinly wrapped by`migrate-if-needed.sh`.
There are numerous additional improvements that need to be made, but will be submitted in future PRs. This PR is focused on achieving parity with the pre-existing functionality and introducing some much needed test coverage, in particular HA cluster upgrade test coverage.
It appears that the `attachlease` and `rollback` go binaries are no longer needed as standalones and so I have consolidated them into the new `migrate` go binary. Other than that, this change aims to be 100% backward compatible.
```release-note
NONE
```
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Add support to ingest log entries to Stackdriver against new "k8s_container" and "k8s_node" resources.
**What this PR does / why we need it**:
**Which issue(s) this PR fixes**
Fluentd 0.14 has some memory leak issues that caused the e2e tests to be flaky. Downgrading to v0.12.
**Special notes for your reviewer**:
We never released any previous version with Fluentd v0.14. Only upgraded it very recently. So this downgrading is not visible to users.
**Release note**:
```release-note
Add support to ingest log entries to Stackdriver against new "k8s_container" and "k8s_node" resources.
```
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When using custom network with IP-alias, use the former's subnet for the latter too
Currently, when we're using custom subnet and ip-alias simultaneously, the cluster fails to come up.
The reason is because we're creating a subnet in the former with one name, but expecting a differently named subnet for the latter.
This is causing [continuous failures in our 100-node job](https://k8s-testgrid.appspot.com/sig-scalability-gce#gce) where I recently turned both of them on.
cc @kubernetes/sig-network-bugs
```release-note
NONE
```
Set the default to cos-stable-65 (which is what we are using on GKE for
latest 1.9 and 1.8) and set config-test to use cos-beta-66, so that we
can get more exposure to it.
The testgrid seems to be fairly happy with these images. (both
e2e-gce-cosdev-k8sdev-default and e2e-gce-cosbeta-k8sdev-default are
generally green.)
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Remove rktnetes code
**What this PR does / why we need it**:
rktnetes is scheduled to be deprecated in 1.10 (#53601). According to the deprecation policy for beta CLI and flags, we can remove the feature in 1.11.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#58721
**Special notes for your reviewer**:
**Release note**:
```release-note
Removed rknetes code, which was deprecated in 1.10.
```
/assign @yujuhong
/hold
Hold until the end of the freeze.
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Change HAIRPIN_MODE to hairpin-veth as default
**What this PR does / why we need it**:
Change the default HAIRPIN_MODE back to "hairpin-veth".
It was previously "promiscuous-bridge" in order to workaround a kernel bug which deadlocked the machine when hairpin-veth was used. (#27498)
After some thorough manual testing on ubuntu clusters, we feel confident now that the kernel bug is fixed so we should switch back to using hairpin-veth. This will allow us to clean up some ebtables rules that were put in place to make "promiscuous-bridge" work properly.
Once this change goes in, we need to carefully monitor our e2e tests to make sure the bug has not resurfaced.
**Release note**:
```release-note
In a GCE cluster, the default HAIRPIN_MODE is now "hairpin-veth".
```
/cc @freehan @prameshj
/assign @roberthbailey
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Update GCP fluentd configmap for COS audit logging on GKE node
**What this PR does / why we need it**:
This PR adds a placeholder in fluentd configmap for COS audit logging on GKE node.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
NONE
**Release note**:
```release-note
NONE
```
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Bump to etcd 3.1.12 to pick up critical fix
etcd [3.1.12](https://github.com/coreos/etcd/releases/tag/v3.1.12) (as well as 3.2.17 and 3.3.2) was released yesterday to fix a bug critical to kubernetes:
Fix [mvcc "unsynced" watcher restore operation](https://github.com/coreos/etcd/pull/9297).
- "unsynced" watcher is watcher that needs to be in sync with events that have happened.
- That is, "unsynced" watcher is the slow watcher that was requested on old revision.
- "unsynced" watcher restore operation was not correctly populating its underlying watcher group.
- Which possibly causes [missing events from "unsynced" watchers](https://github.com/coreos/etcd/issues/9086).
This will be backported to 1.9 as well.
Release note:
```release-note
Upgrade the default etcd server version to 3.1.12 to pick up critical etcd "mvcc "unsynced" watcher restore operation" fix.
```
cc @gyuho @wojtek-t @shyamjvs @timothysc @jdumars
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Setting REMOUNT_VOLUME_PLUGIN_DIR for COS images in kube-env
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#60725
**Special notes for your reviewer**: Not sure if it's the best place to set `REMOUNT_VOLUME_PLUGIN_DIR`.
/sig storage
/sig cluster-lifecycle
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Make log audit backend configurable in GCE
This PR will allow to enable audit logging batching by default in e2e tests, after https://github.com/kubernetes/kubernetes/pull/60739 is merged. This is an important step to prevent a regression in scale tests.
/cc @tallclair @sttts
/assign @roberthbailey
Robert, please approve
```release-note
NONE
```
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