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Disable initializers by default
The API group driving this field is not enabled by default, and it does not appear that these will progress beyond the alpha phase.
Remove the admission plugin from default configurations.
/sig api-machinery
/cc @smarterclayton
```release-note
The alpha `Initializers` admission plugin is no longer enabled by default. This matches the off-by-default behavior of the alpha API which drives initializer behavior.
```
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make the addons docker registry configurable
**What this PR does / why we need it**:
Allow users to configure the docker registry used when applying cdk-addons templates.
**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**:
Depends on https://github.com/juju-solutions/cdk-addons/pull/45
**Release note**:
```release-note
Expose docker registry config for addons used in Juju deployments
```
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Incremented the elasticsearch version
**What this PR does / why we need it**:
Applies changes implemented in:
https://github.com/kubernetes/kubernetes/pull/65627
**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**:
**Release note**:
```
NONE
```
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Remove references to the Debian-based Container-VM image
The image reached end-of-life in October 2017. Remove the associated
references from the cluster setup script.
**What this PR does / why we need it**:
**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**:
**Release note**:
```release-note
NONE
```
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Fix flexvolume in containerized kubelets
Fixes flex volumes in containerized kubelets.
cc @jsafrane @chakri-nelluri @verult
Note to reviewers : e2e tests pass in local containarized cluster.
```release-note
Fix flexvolume in containarized kubelets
```
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Remove echo cmd when overwriting a file from an Env var.
**What this PR does / why we need it**:
Cleanup the shell script.
**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**:
**Release note**:
```release-note
"NONE"
```
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juju: Fix upgrade actions not working with resources
**What this PR does / why we need it**:
This fixes an issue with the kubernetes-master and kubernetes-worker charms, where running the `upgrade` action does not actually perform an upgrade when snaps are attached as resources.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/528
**Special notes for your reviewer**:
The underlying issue is that both layer-snap and the kubernetes layers are using `any_file_changed` to look for changes in the resources. This PR fixes it by removing the use of `any_file_changed` in the top-level layers, and implementing our own code for it instead.
**Release note**:
```release-note
NONE
```
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Reload systemd config files before starting kubelet.
In some environments, the os image comes with preloaded kubelet.service,
so we need to reload systemctl configs to make changes effective.
**What this PR does / why we need it**:
Some OS images already contains kubelet.service with preloaded kubelet in some random version. After doing changes to kubelet.service we need to call 'systemctl daemon-reload' to make changes effective.
**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**:
**Release note**:
```release-note
NONE
```
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stop using deprecated --etcd-quorum-read
etcd-quorum-read was deprecated, but it is still used.
This pr stops using it.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 64758, 65627). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fixed the wrong elasticsearch node counter
**What this PR does / why we need it**:
I am experiencing the nasty bug during the deployment of the elasticsearch-logging statefulset on my custom Kubernetes in Azure (AzureDisk persistant storage). Let's imaging that we want two master nodes which our elasticsearch will try to find during the discovery procedure. Because of the delay between creation of two nodes (azure disk creation) there will be a situation when only one node exists in the service endpoint list and it will be enough to pass the elasticsearch logging discovery step. Only one node will be written to the elasticsearch.yml, but it expects two. Elasticsearch will not be able to find required two nodes. Then Kubernetes will terminate the first pod while the second pod is almost ready (remove that endpoint from service). Then it adds the ip of the second pod to the endpoint and discovery fails as well. This is the endless procedure.
**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**:
**Release note**:
```release-note
Fixes the wrong elasticsearch node counter
```
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Add Ubuntu 18.04 (Bionic) series to Juju charms
**What this PR does / why we need it**:
Adds Ubuntu 18.04 (Bionic) series to Juju charms. 16.04 (Xenial) is still the default series, but with this change the charms can be easily deployed on Bionic if desired.
**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**:
**Release note**:
```release-note
Add Ubuntu 18.04 (Bionic) series to Juju charms
```
Automatic merge from submit-queue (batch tested with PRs 65518, 65624, 65380, 65390, 65586). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Preparing for 1.11 release and update ingress image to 0.16.1
**What this PR does / why we need it**: This is to prepare Juju charms to default to 1.11 release.
**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**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 65319, 64513, 65474, 65601, 65634). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Enable “Kubernetes Monitoring” and “PodSecurityPolicies” on the same cluster
Without that the daemonset "metadata-agent" return:
```pods "metadata-agent-" is forbidden: unable to validate against any pod security policy: [spec.containers[0].securityContext.containers[0].hostPort: Invalid value: 8799: Host port 8799 is not allowed to be used. Allowed ports: []]```
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 65319, 64513, 65474, 65601, 65634). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Allow custom manifests in GCP master setup
Add a hook in GCE setup script to allow using custom manifests on master, so we can decouple some GKE changes from k8s. Note that this PR just adds a hook there is no change in default behavior.
```release-note
```
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Add prometheus scrape port to CoreDNS service
**What this PR does / why we need it**:
Add prometheus scrape port
**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 #https://github.com/kubernetes/kubeadm/issues/955
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Bug fix: Should allow alias range size equals to max number of pods * 2
**What this PR does / why we need it**:
Currently in gce/config-common.sh, function get-alias-range-size returns a range which is strictly bigger than log2(max pods * 2). Where equal should be also acceptable. Say if max pods constraint = 8, it should return /28, instead of /27.
**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#65521
**Release note**:
```release-note
NONE
```
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use lowercase hostnames for node names
**What this PR does / why we need it**:
Uppercase hostnames used in charms result in (lowercase) node name lookup errors. This happens when /etc/hostname contains uppercase characters and gethostname or getfqdn return those characters.
**Special notes for your reviewer**:
Discovered in a field deployment where hostnames are all uppercase.
**Release note**:
```release-note
Hostnames are now converted to lowercase before being used for node lookups in the kubernetes-worker charm.
```
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Set pod priority on kube-proxy manifest by default
**What this PR does / why we need it**:
Follow up of https://github.com/kubernetes/kubernetes/pull/59237, set pod priority on kube-proxy by default and remove the unneeded logic in startup script.
**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 #NONE
**Special notes for your reviewer**:
/assign @bsalamat @bowei
cc @tanshanshan
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 65361, 64527). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix exception detection in new version of fluentd-gcp addon
**What this PR does / why we need it**:
The `detect_exceptions` plugin is used to group log entries that belong to a common exception together into one log message. A [recent change](1ca851baec/cluster/addons/fluentd-gcp/fluentd-gcp-configmap.yaml (L100)) to the configuration modified which field is used for the log message, but this change was not applied to the configuration of the `detect_exceptions` plugin, so currently no collation of exception lines is happening.
This change fixes the issue by changing the field the `detect_exceptions` plugin is using.
**Special notes for your reviewer**:
**Release note**:
```release-note
Fixed exception detection in fluentd-gcp plugin.
```
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