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Add node problem detector as an addon pod.
```release-note
Introduce a new add-on pod NodeProblemDetector.
NodeProblemDetector is a DaemonSet running on each node, monitoring node health and reporting
node problems as NodeCondition and Event. Currently it already supports kernel log monitoring, and
will support more problem detection in the future. It is enabled by default on gce now.
```
This PR enables NodeProblemDetector as an add-on pod.
/cc @mikedanese @kubernetes/sig-node
[]()
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Configuration for GCP webhook authentication and authorization
This PR adds configuration for GCP webhook authentication and authorization in ContainerVM and GCI. The change of configure-vm.sh and kube-apiserver.manifest is directly copied from @cjcullen's PR #25380 and #25296. The change in GCI script configure-helper.sh includes the support for webhook authentication and authorization, and also some code refactor to improve readability.
@cjcullen @roberthbailey @zmerlynn please review it. The original PRs are P1, please mark this as P1.
cc/ @fabioy @kubernetes/goog-image FYI.
I verified it by running e2e tests on GCI cluster. Without the GCI side change, cluster creation fails as being capture by GKE Jenkins tests. I don't test when the two env GCP_AUTHN_URL and GCP_AUTHZ_URL are set, because they are only set in GKE. After this PR is merged, @cjcullen will test in GKE.
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cluster/gce/coreos: Set service-cluster-ip-range
Broken by #19242
See also #26002
This is necessary to kube-up for me, but depending on how #26002 plays out, this PR might not be necessary. Happy to close this or merge or whatever depending on what's best.
cc @yifan-gu @sjpotter @mikedanese
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Updating CentOS image, adding heat back to the required cli tools.
[]()
Updated the CentOS cloudimage to the latest available, and also added heat to the required list of cli tools. This is an interim step to replacing all the commands with openstackclient.
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add CIDR allocator for NodeController
This PR:
* use pkg/controller/framework to watch nodes and reduce lists when allocate CIDR for node
* decouple the cidr allocation logic from monitoring status logic
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GCI: Fix the condition for using the default image
This PR revises the condition for using the default GCI image. The old logic is not convenient for manually run e2e tests in some cases (mainly for GCI team to test custom images). The new logic by this PR is very similar to the logic in using ContainerVM. When setting distro to "gci", if master or node image is unset, we use gci-dev for it. If either is set, we respect it.
@roberthbailey @zmerlynn @dchen1107 please review it, and we should cherry pick it in release-1.2 branch. Thanks!
cc/ @kubernetes/goog-image @adityakali FYI
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Fix hyperkube's layer caching, and remove --make-symlinks at build time
@david-mcmahon This is required before you release. Explanation in the code.
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AWS: More support for ap-northeast-2 region
Issue #24446
The new AWS region for Seoul, Korea (ap-northeast-2)
was launched in January 2016
https://aws.amazon.com/blogs/aws/now-open-aws-asia-pacific-seoul-region/
But it requires a few changes.
To test:
```
export KUBERNETES_PROVIDER=aws
export KUBE_AWS_ZONE=ap-northeast-2a
export MASTER_SIZE=t2.medium
export NODE_SIZE=t2.medium
export NUM_NODES=4
cluster/kube-up.sh
```
I assigned the AMIs by checking the specific version used from `ap-northeast-1`,
and finding the same image with the same datestamp.
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---
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GCI/Trusty: Fix an issue in using 'find' commands
This PR makes the logic of 'find' command consistent with the 'cp' command afterwards, i.e., only check one layer of a given dir. Without this fix, we have seen a recent breakage after PR #25309 added the file cluster/addons/fluentd-elasticsearch/es-image/template-k8s-logstash.json. The 'find' command discovers this json file, but the 'cp' command fails.
@roberthbailey @dchen1107 @zmerlynn please review this fix, and mark it as a cherry pick candidate. I already verified this fix can resolve the breakage.
cc/ @wonderfly @fabioy @kubernetes/goog-image FYI
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cluster/juju: Updated the url for the getting started doc
Minor change to update the URL pointing at the "Running Kubernetes locally via Docker" document
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GCI: Enable the log of upstart jobs
This PR enables the log of upstart jobs in master.yaml and node.yaml. By default, log of upstart jobs are enabled in Trusty and placed in /var/log/upstart, but not enabled in GCI. This change explicitly directs the log to the system logger. For trusty, they are in /var/log/syslog file. In GCI, we can check it using "journalctl". This change will be useful for debugging if cluster initialization fails.
@roberthbailey @maisem @dchen1107 please review it. This will be useful for issues like #23634. We should also cherry pick it in release-1.2
cc/ @fabioy @zmerlynn @wonderfly FYI.
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Automatically download the latest stable release version of Kubernetes.
The ubuntu version of download-release.sh included in the binary release downloads the released .tar.gz file again. Right now the version of the downloaded file is manually encoded within the script. This change fetches the released version automatically, similar to the shell script available on the main Kubernetes site below:
https://get.k8s.io/
Ideally the installation on bare metal ubuntu should work with the files available in the already downloaded package.
@mikedanese
