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Remove default binding of system:node role to system:nodes group #49638

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Jul 28, 2017

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@liggitt liggitt commented Jul 26, 2017

part of kubernetes/enhancements#279

deprecation of this automatic binding announced in 1.7 in #46076

RBAC: the `system:node` role is no longer automatically granted to the `system:nodes` group in new clusters. It is recommended that nodes be authorized using the `Node` authorization mode instead. Installations that wish to continue giving all members of the `system:nodes` group the `system:node` role (which grants broad read access, including all secrets and configmaps) must create an installation-specific `ClusterRoleBinding`.

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Jul 26, 2017
@k8s-github-robot k8s-github-robot added size/M Denotes a PR that changes 30-99 lines, ignoring generated files. release-note Denotes a PR that will be considered when it comes time to generate release notes. approved Indicates a PR has been approved by an approver from all required OWNERS files. labels Jul 26, 2017
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liggitt commented Jul 26, 2017

cc @kubernetes/sig-auth-pr-reviews

@k8s-ci-robot k8s-ci-robot added the sig/auth Categorizes an issue or PR as relevant to SIG Auth. label Jul 26, 2017
@ericchiang ericchiang added the release-note-action-required Denotes a PR that introduces potentially breaking changes that require user action. label Jul 26, 2017
@liggitt liggitt removed the release-note Denotes a PR that will be considered when it comes time to generate release notes. label Jul 26, 2017
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/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jul 26, 2017
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ericchiang, liggitt

Associated issue: 279

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Communicated to cluster-lifecycle?

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/retest
Automated flake /retester experiment. Please send feedback to fejta

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@smarterclayton thanks. Sent a notice to the cluster lifecycle mailing list https://groups.google.com/forum/#!topic/kubernetes-sig-cluster-lifecycle/1OIjHX-A3sI

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Automatic merge from submit-queue (batch tested with PRs 49619, 49598, 47267, 49597, 49638)

@k8s-github-robot k8s-github-robot merged commit 3d3d392 into kubernetes:master Jul 28, 2017
k8s-github-robot pushed a commit that referenced this pull request Jul 31, 2017
Automatic merge from submit-queue

Enable node authorizer in local-up-cluster

Fixes #49822 

Enables the Node authorization mode to ensure the kubelet credential we create has permission to do kubelet-related things. Matches the default authorizers in gce/gke and CI clusters.

Related to the deprecation of the automatic binding of the `system:nodes` group to the `system:node` role on new deployments (#49638)

```release-note
`hack/local-up-cluster.sh` now enables the Node authorizer by default. Authorization modes can be overridden with the `AUTHORIZATION_MODE` environment variable, and the `ENABLE_RBAC` environment variable is no longer used.
```
@liggitt liggitt deleted the remove-nodes-binding branch August 1, 2017 02:55
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7 participants