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✨ optimize rbac across controllers #10552

Merged
merged 4 commits into from
May 17, 2024
Merged

✨ optimize rbac across controllers #10552

merged 4 commits into from
May 17, 2024

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chrischdi
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@chrischdi chrischdi commented May 3, 2024 •
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What this PR does / why we need it:

I reviewed and changed some permissions to harden RBAC for our controllers.

RBAC removals:

Controller Object Old permissions New permissions
Core CAPI clusters create/delete/get/list/patch/update/watch get/list/patch/update/watch
Core CAPI clusters/status create/delete/get/list/patch/update/watch get/list/patch/update/watch
Core CAPI clusters/finalizers create/delete/get/list/patch/update/watch get/list/patch/update/watch
Core CAPI nodes create/delete/get/list/patch/update/watch none *
Core CAPI events create/delete/get/list/patch/update/watch create
kubeadm bootsrap events create/delete/get/list/patch/update/watch create
kubeadm control-plane events create/delete/get/list/patch/update/watch create
kubeadm bootstrap kubeadmconfigs/finalizers ? none *2
Core CAPI clusterresourcesets/finalizers ? none *2
Core CAPI machinepools/finalizers ? none *2
Core CAPI clusters/finalizers ? none *2
Core CAPI machines/finalizers ? none *2
Core CAPI machinedeployments/finalizers ? none *2
Core CAPI machinehealthchecks/finalizers ? none *2
Core CAPI machinesets/finalizers ? none *2
Core CAPI machinedeployments/finalizers ? none *2
Core CAPI machinesets/finalizers ? none *2
CAPD dockermachinepools/finalizers ? none *2
CAPD dockermachinepools/finalizers ? none *2
CAPD dockerclusters/finalizers ? none *2
CAPD dockermachines/finalizers ? none *2
InMemory inmemoryclusters/finalizers ? none *2
InMemory inmemorymachines/finalizers ? none *2

*: this is okay, because for accessing nodes on managed clusters we always use the admin credentials and it is not related to rbac inside the management cluster (also for self-hosted).

*2: this is okay, because we never use the subresource for adding/removing finalizers

RBAC alignment (adding update where patch is already allowed or adding get and watch where list is already allowed, xref)

Controller Object Old permissions New permissions
kubeadm control-plane machinepools list get/list/watch
Core CAPI configmaps get/list/watch/patch get/list/watch/patch/update
Core CAPI secrets get/list/watch/patch get/list/watch/patch/update

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):

Part of #6554

Note: I did use controller-gen from kubernetes-sigs/controller-tools#937 to get a deduplicated output.
On top the following query helps to get a comparable output which can be pasted to google sheets or similar:

for f in $(find . -iname role.yaml | grep config); do cat $f | yq '.rules[] | . as $parent | ($parent.apiGroups | join ";") + "," + .resources[] + "," + (.verbs | join ";")' | sort | sed 's#^#'$f',#'; done

Note: kubernetes-sigs/controller-tools#937 would help to deduplicate and cleanup the resulting clusterroles/roles so they are better in getting compared or audited.

/area api

(there was no perfect matching area, alternative would be adding all areas of the controllers)

@k8s-ci-robot k8s-ci-robot added area/api Issues or PRs related to the APIs cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels May 3, 2024
@chrischdi chrischdi changed the title ✨ optimize rbac across controllers [wip] ✨ optimize rbac across controllers May 3, 2024
@k8s-ci-robot k8s-ci-robot added the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label May 3, 2024
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/test help

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@chrischdi: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

  • /test pull-cluster-api-build-main
  • /test pull-cluster-api-e2e-blocking-main
  • /test pull-cluster-api-e2e-conformance-ci-latest-main
  • /test pull-cluster-api-e2e-conformance-main
  • /test pull-cluster-api-e2e-dualstack-and-ipv6-main
  • /test pull-cluster-api-e2e-main
  • /test pull-cluster-api-e2e-mink8s-main
  • /test pull-cluster-api-e2e-upgrade-1-30-1-31-main
  • /test pull-cluster-api-test-main
  • /test pull-cluster-api-test-mink8s-main
  • /test pull-cluster-api-verify-main

The following commands are available to trigger optional jobs:

  • /test pull-cluster-api-apidiff-main

Use /test all to run the following jobs that were automatically triggered:

  • pull-cluster-api-apidiff-main
  • pull-cluster-api-build-main
  • pull-cluster-api-e2e-blocking-main
  • pull-cluster-api-test-main
  • pull-cluster-api-verify-main

In response to this:

/test help

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

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/test pull-cluster-api-e2e-conformance-ci-latest-main
/test pull-cluster-api-e2e-conformance-main
/test pull-cluster-api-e2e-dualstack-and-ipv6-main
/test pull-cluster-api-e2e-main
/test pull-cluster-api-e2e-mink8s-main
/test pull-cluster-api-e2e-upgrade-1-30-1-31-main

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/test pull-cluster-api-e2e-conformance-ci-latest-main
/test pull-cluster-api-e2e-conformance-main
/test pull-cluster-api-e2e-dualstack-and-ipv6-main
/test pull-cluster-api-e2e-main
/test pull-cluster-api-e2e-mink8s-main
/test pull-cluster-api-e2e-upgrade-1-30-1-31-main

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@chrischdi: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name Commit Details Required Rerun command
pull-cluster-api-e2e-main 47ec791 link true /test pull-cluster-api-e2e-main
Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Failure is I think related to #10530

/test pull-cluster-api-e2e-main

@chrischdi chrischdi changed the title [wip] ✨ optimize rbac across controllers ✨ optimize rbac across controllers May 7, 2024
@k8s-ci-robot k8s-ci-robot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label May 7, 2024
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Let's do another round of tests

/test pull-cluster-api-e2e-main

@k8s-ci-robot k8s-ci-robot added size/L Denotes a PR that changes 100-499 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels May 7, 2024
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/test pull-cluster-api-e2e-conformance-ci-latest-main
/test pull-cluster-api-e2e-conformance-main
/test pull-cluster-api-e2e-dualstack-and-ipv6-main
/test pull-cluster-api-e2e-main
/test pull-cluster-api-e2e-mink8s-main
/test pull-cluster-api-e2e-upgrade-1-30-1-31-main

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/hold

for #10612 please :)

@k8s-ci-robot k8s-ci-robot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label May 14, 2024
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/hold

to wait for #10612

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/hold cancel

/assign @sbueringer @fabriziopandini

@k8s-ci-robot k8s-ci-robot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label May 14, 2024
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Will take another look in a bit

@sbueringer sbueringer added the tide/merge-method-squash Denotes a PR that should be squashed by tide when it merges. label May 15, 2024
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Thx!

/lgtm
/assign @fabriziopandini

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label May 15, 2024
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LGTM label has been added.

Git tree hash: ef567ae9f91581aa4e91d4509ad1f197a0f0b75b

fabriziopandini
fabriziopandini reviewed May 17, 2024
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That's an awesome work, thank you
/lgtm
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label May 17, 2024
@k8s-ci-robot k8s-ci-robot merged commit ae096cd into kubernetes-sigs:main May 17, 2024
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@k8s-ci-robot k8s-ci-robot added this to the v1.8 milestone May 17, 2024
@chrischdi chrischdi mentioned this pull request May 28, 2024
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