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🌱 Replicating SyncTarget-related rbac and logicalclusters objects #2933

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davidfestal
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@davidfestal davidfestal commented Mar 29, 2023

Summary

The SyncTarget-related cluster roles and cluster role bindings, as well as logical clusters, should be replicated in order to have the Syncer virtual workspace work correctly.

Related issue(s)

This is a split of PR #2675

@davidfestal davidfestal requested a review from sttts March 29, 2023 16:09
@openshift-ci openshift-ci bot requested review from csams and jmprusi March 29, 2023 16:09
@openshift-ci openshift-ci bot added the kind/api-change Categorizes issue or PR as related to adding, removing, or otherwise changing an API label Mar 29, 2023
@davidfestal davidfestal force-pushed the replicate-synctarget-related-rbac branch 2 times, most recently from a80fec5 to 1e6ee77 Compare March 29, 2023 18:43
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/test e2e-sharded

@davidfestal davidfestal force-pushed the replicate-synctarget-related-rbac branch from 1e6ee77 to cf8a625 Compare March 30, 2023 10:51
@davidfestal davidfestal force-pushed the replicate-synctarget-related-rbac branch 2 times, most recently from 49b5281 to bcc511f Compare March 30, 2023 12:55
@davidfestal davidfestal force-pushed the replicate-synctarget-related-rbac branch from bcc511f to ae8c468 Compare March 30, 2023 15:04
@davidfestal davidfestal removed the kind/api-change Categorizes issue or PR as related to adding, removing, or otherwise changing an API label Mar 30, 2023
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Just remove the api-changed label since the changes initially done to the API have been removed, since they were finally unnecessary.

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/test e2e-shared

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just 2 nits, lgtm other than that, thx!

test/e2e/reconciler/cache/replication_test.go Outdated Show resolved Hide resolved
test/e2e/reconciler/cache/replication_test.go Outdated Show resolved Hide resolved
@@ -678,14 +683,23 @@ func (b *replicateResourceScenario) verifyResourceReplicationHelper(ctx context.
}
unstructured.RemoveNestedField(originalResource.Object, "metadata", "resourceVersion")
unstructured.RemoveNestedField(cachedResource.Object, "metadata", "resourceVersion")

// TODO(davidfestal): find out why the generation is not equal, specially for rbacv1.
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OK. I think I found it: kcp-dev/kubernetes#132

Once this PR merges we need to set the field to true in

ExtraConfig: apiextensionsapiserver.ExtraConfig{

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I think we could wait until the PR merges and test it in your PR, wdyt?

}
resources := sets.NewString(rule.Resources...)
verbs := sets.NewString(rule.Verbs...)
if resources.Has("synctargets") && verbs.Has("sync") && len(rule.ResourceNames) == 1 {
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len(rule.ResourceNames) == 1 is logically wrong. Multiple resource names are possible and a user could use those for custom authorization of a syncer.

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would > 0 be OK ?
I can also of course completely remove this condition (which was the case initially)

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But considering the case when a single service account would grant access to the VWs for all the SyncTargets seems strange to me.

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The RBAC semantics is well defined. If RBAC authorizes syncing, you must replicate the role. Don't let this logic be influenced by how the cli command sets things up.

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@davidfestal davidfestal Apr 3, 2023

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I removed this, and also now take in account the * in the rules, as done for the APIExport-related rbac objects.

@davidfestal davidfestal force-pushed the replicate-synctarget-related-rbac branch from ae8c468 to 63e6eb5 Compare April 3, 2023 16:34
@davidfestal davidfestal changed the title 🌱 Replicating SyncTarget-related rbac objects 🌱 Replicating SyncTarget-related rbac and logicalclusters objects Apr 3, 2023
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/test e2e-shared

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/test e2e-shared

}
resources := sets.NewString(rule.Resources...)
verbs := sets.NewString(rule.Verbs...)
if (resources.Has("synctargets") || resources.Has("*")) && (verbs.Has("sync") || verbs.Has("*")) {
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shouldn't we match on Verbs: []string{"sync"}, Resources: []string{"synctargets"} only?

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Well, in fact I came back to what @sttts had done for APIExports (quite similar use-case): https://github.com/kcp-dev/kcp/blob/main/pkg/reconciler/apis/replicateclusterrole/replicateclusterrole_controller.go#L58

That mainly covers all the CRs that would allow the sync verb for synctargets resources

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OK, thanks for explaining.

func HasSyncRule(clusterName logicalcluster.Name, cr *rbacv1.ClusterRole) bool {
for _, rule := range cr.Rules {
apiGroups := sets.NewString(rule.APIGroups...)
if !apiGroups.Has(workload.GroupName) && !apiGroups.Has("*") {
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shouldn't we match on APIGroups: []string{"workload.kcp.io"} only?

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@davidfestal davidfestal Apr 4, 2023

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Well, in fact I came back to what @sttts had done for APIExports (quite similar use-case): https://github.com/kcp-dev/kcp/blob/main/pkg/reconciler/apis/replicateclusterrole/replicateclusterrole_controller.go#L58

That mainly covers all the CRs that would allow the sync verb for synctargets resources

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/lgtm

@openshift-ci openshift-ci bot added the lgtm Indicates that a PR is ready to be merged. label Apr 4, 2023
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/approve

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openshift-ci bot commented Apr 4, 2023

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: davidfestal

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@openshift-ci openshift-ci bot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Apr 4, 2023
@openshift-merge-robot openshift-merge-robot merged commit e65e243 into kcp-dev:main Apr 4, 2023
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5 participants