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fix(lineage, kubernetes): resolve CAPK node VMs to their cluster - #5124
Aleksei Sviridkin (lexfrei) merged 2 commits into
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The Cluster API KubeVirt provider creates a node's VirtualMachine
without an ownerReference and links it to its KubevirtMachine through
the capk.cluster.x-k8s.io/kubevirt-machine-{name,namespace} labels
only. The ownership walk therefore stopped at the VM, found no
ancestor, and the lineage webhook left every object below it unmanaged:
the virt-launcher pods of worker nodes never got
internal.cozystack.io/managed-by-cozystack, while still carrying the
application lineage labels copied from the machine template.
Anything that relies on the webhook having resolved those pods misses
them. The securitygroup-controller caches only managed pods, so a
SecurityGroup attached to a Kubernetes application labelled the
control-plane pods and never the nodes.
Follow the CAPK labels from the VM to its KubevirtMachine, whose
ownerReferences reach the CAPI Cluster and from there the cluster's
HelmRelease. Only a KubevirtMachine in the VM's own namespace is
followed: CAPK can target an external infrastructure cluster, and the
walk must never attribute an object across namespaces.
Signed-off-by: Mattia Eleuteri <[email protected]>
Assisted-by: LLM
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Aleksei Sviridkin (lexfrei)
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mattia-eleuteri NOT LGTM
Please add regression tests that reject labelled objects of the wrong kind or API group. The current production guard is correct. Evidence: changing its || to && still passes the existing lineage, webhook and SecurityGroup controller tests. With that change, a kubevirt.io/v1 Cluster or a VirtualMachine from another group resolves to the Kubernetes application. A small negative table in capk_test.go, alongside the existing positive case, is enough.
Please also correct the cloud-init Secret ownership claim in the PR body. Evidence: the pinned provider's reconcileKubevirtBootstrapSecret creates the userdata Secret with Labels: s.Labels and no ownerReferences. It does not create the KubevirtMachine owner edge described in the blast-radius paragraph.
The bridge from a VirtualMachine to its KubevirtMachine is guarded by the object's API version and kind, but no test exercised that guard: weakening it to match on either field alone still passed, and let a labelled kubevirt.io Cluster or a VirtualMachine of another group resolve to the Kubernetes application. Assisted-by: LLM Signed-off-by: Mattia Eleuteri <[email protected]>
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Aleksei Sviridkin (@lexfrei) Thanks, both addressed. fd9245f adds |
Aleksei Sviridkin (lexfrei)
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mattia-eleuteri LGTM. I checked the full diff against current main. Changing || to && now fails the negative tests while the positive case still passes. The userdata Secret description matches the pinned CAPK source. The lineage, admission and SecurityGroup tests pass with the race detector, and the worker chart tests pass. I did not run live VM or network tests.
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## What this PR does
The virt-launcher pods of Kubernetes worker nodes are never marked as
managed by the lineage webhook, so anything that relies on the webhook
having resolved them misses them. The visible symptom: a SecurityGroup
attached to a `Kubernetes` application labels the control-plane pods but
never the worker nodes, because the securitygroup-controller caches only
pods carrying `internal.cozystack.io/managed-by-cozystack=true`.
**Root cause.** The webhook is not skipped for these pods (they do not
carry the managed-by label, so the `objectSelector` lets them through);
it runs and fails to resolve their owner chain. The walk goes Pod →
VirtualMachineInstance → VirtualMachine and stops there: the Cluster API
KubeVirt provider creates the VirtualMachine with no ownerReference and
links it to its KubevirtMachine through the
`capk.cluster.x-k8s.io/kubevirt-machine-{name,namespace}` labels only.
With no ownerReference, no HelmRelease kind and no
`helm.toolkit.fluxcd.io/name` label on the VM, `WalkOwnershipGraph`
returns no ancestor, `computeLabels` returns nothing and the pod is
admitted unmanaged. The
`apps.cozystack.io/application.{group,kind,name}` labels the pods do
carry come from the `KubevirtMachineTemplate` in
`packages/apps/kubernetes-nodes/templates/nodegroup.yaml`, not from the
webhook.
**Measured on a v1.6.5 cluster.** Every Kubernetes cluster on it showed
the same shape (three clusters across two tenants). For one worker node:
the pod carries the three lineage labels but not `managed-by-cozystack`;
the pod is owned by its VMI and the VMI by its VM; the VM has no
ownerReferences, and its labels include
`capk.cluster.x-k8s.io/kubevirt-machine-name` and
`capk.cluster.x-k8s.io/kubevirt-machine-namespace` pointing at a
KubevirtMachine in the same namespace. From there ownerReferences run
KubevirtMachine → Machine → MachineSet → MachineDeployment → Cluster,
and the CAPI Cluster carries `helm.toolkit.fluxcd.io/name:
kubernetes-<name>`. The bridge is one hop. Setting
`managed-by-cozystack=true` by hand on a worker's virt-launcher pod made
the securitygroup-controller stamp the membership label within ten
seconds.
**Fix.** `WalkOwnershipGraph` now follows a VirtualMachine without
ownerReferences to the KubevirtMachine named by its CAPK labels, and
keeps walking from there. Node pods then resolve to the parent
`Kubernetes` application, which is the attribution the machine template
already hard-codes, and they get `managed-by-cozystack` like every other
managed pod. The bridge is only taken when the label names the VM's own
namespace: CAPK can target an external infrastructure cluster, and the
walk must never attribute an object across namespaces. The webhook's
ClusterRole already grants `get` on every resource, so no RBAC change is
needed.
**Why at the source rather than in the consumer.** Relaxing the
securitygroup-controller's pod cache to
`apps.cozystack.io/application.kind` Exists would also have fixed the
symptom, but it would leave every other consumer of the managed-by label
blind to node pods, and it would rest membership on labels the webhook
never vouched for. Stamping `managed-by-cozystack` from the machine
template was ruled out too: the `objectSelector` would then skip these
pods entirely, and they would lose the scheduling-class injection the
webhook performs on every pod.
**Blast radius.** Only objects below a CAPK VM change: the VMI, the
virt-launcher pods and the PVCs of the VM's `dataVolumeTemplates` now
get the lineage labels of their Kubernetes application. None of them
match a resource selector of the `Kubernetes` ApplicationDefinition, so
they get `tenantresource=false`. Nothing selects PVCs on
`application.kind=Kubernetes` (the Velero strategy selects `VMDisk`).
The `-userdata` cloud-init Secret CAPK creates is not affected either
way: at the pinned provider commit, `reconcileKubevirtBootstrapSecret`
creates it with the bootstrap Secret's labels and no ownerReferences, so
the walk reaches neither the VM nor the KubevirtMachine from it, before
or after this change. Existing node pods pick the labels up on their
next admission (recreation, live migration, or any update).
**Tests.** `pkg/lineage/capk_test.go` builds the observed chain in a
fake dynamic client and checks that a worker's virt-launcher pod
resolves to `Kubernetes/cluster-a`, that a VM pointing at a
KubevirtMachine in another namespace is not followed, that a VM without
CAPK labels still has no ancestor, and, in a table of negative cases,
that the CAPK labels are ignored on any object other than a
`kubevirt.io/v1` VirtualMachine (another kind of the `kubevirt.io`
group, a VirtualMachineInstance, a VirtualMachine of another group or
version). Weakening the kind and API version guard to match on either
field alone fails all four cases. With the bridge disabled, the first
test fails. No chainsaw case: the only suites that bring up worker VMs
are `kubernetes-latest` and `kubernetes-previous`, whose shared runner
script is already over its time budget, and the unit test covers the
walk exactly as it runs in the webhook.
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### Release note
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```release-note
fix(lineage, kubernetes): the virt-launcher pods of Kubernetes worker nodes are now resolved to their Kubernetes application and marked as managed by Cozystack, so a SecurityGroup attached to a Kubernetes cluster now applies to its worker nodes, not only to its control plane.
```
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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<!-- coderabbit-ai-generated:v1 -->
## Summary by CodeRabbit
* **New Features**
* Lineage results now connect supported virtual machines to their
associated machine and Kubernetes application when the required
association labels are present.
* **Bug Fixes**
* Association tracing is limited to supported virtual machine resources
and machines in the same namespace. Unlabelled standalone virtual
machines and machines in another namespace do not gain ancestors through
this association.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Backported-from: 1f35c26
## What this PR does Backports to `release-1.7` from `main`, picked by the rules of the [backport policy](https://github.com/cozystack/cozystack/blob/main/docs/release/backports.md) in merge order. A merged pull request comes as its own commits, picked with `git cherry-pick -x` so each keeps its author, message and sign-offs, and a merge commit that carries the original's merge message with a `Backported-from:` trailer naming it; a squash-merged one comes as one pick. `backport-batch verify` checks that shape. A pick listed as changed differs from the commit it came from; `git range-diff <merge>^1..<merge>^2 <batch merge>^1..<batch merge>^2` shows how. A conflict or a failing check here is a [backport task](https://github.com/cozystack/cozystack/blob/main/docs/release/backport-tasks/README.md). - [#4756](#4756) `fix(backupstrategy-controller): run backup clients on a package-owned image`, 2 commits, changed in the pick: `48d0cb2958a5` - [#4867](#4867) `fix(e2e): keep chainsaw asserts polling through transient API errors`, 1 commit - [#4888](#4888) `fix(ci): dispatch frozen-line builds with GITHUB_TOKEN`, 1 commit - [#4985](#4985) `fix(etcd): stop counting canceled watch streams as failed gRPC requests`, 1 commit - [#5005](#5005) `fix(tcp-balancer): cap HAProxy fds and threads by the pod's own limits`, 1 commit - [#4917](#4917) `fix(kubernetes): run Proxmox CCM v0.16.1 and pin the Proxmox images by digest`, 2 commits - [#4974](#4974) `fix(kubernetes-nodes): plan autoscaler capacity on the cores the VM actually gets`, 1 commit - [#4971](#4971) `fix(e2e): keep the Proxmox tenant kubeconfig per run and remove it`, 2 commits - [#4970](#4970) `fix(e2e): read the KubernetesNodes pool release in the HelmRelease guard`, 3 commits - [#4972](#4972) `fix(e2e): validate the leak allowlist against every suite layout`, 3 commits - [#5082](#5082) `fix(marketplace): pin a tapped repository to a digest instead of a mutable tag`, 15 commits, changed in the pick: `a31ae9090928`, `b326e0badd62`, `a3d883b4bf5b`, `f8509450f7ca` - [#4004](#4004) `fix(dashboard): link a tenant row to its detail page`, 2 commits - [#5212](#5212) `fix(cilium): pass the CiliumNode list to jq on stdin in the IPAM hook`, 1 commit - [#5213](#5213) `fix(kubernetes): move the OIDC users out of the bootstrap Job's script`, 1 commit - [#5208](#5208) `fix(clickhouse): restore the archive a Backup was taken as`, 3 commits - [#5230](#5230) `fix(backups): re-render the default backup objects when the S3 endpoint changes`, 8 commits - [#5133](#5133) `fix(securitygroups): project a membership-only group to a policy Cilium accepts`, 1 commit - [#5091](#5091) `fix(postgres): render the declared databases in a stable order`, 1 commit - [#5123](#5123) `fix(mariadb-operator): derive the cluster name from the platform domain`, 2 commits - [#5151](#5151) `fix(redis): run one Sentinel when Redis runs a single pod`, 5 commits - [#5124](#5124) `fix(lineage, kubernetes): resolve CAPK node VMs to their cluster`, 2 commits - [#5184](#5184) `fix(api): read pool usage under the quota key the controller counts`, 1 commit - [#5190](#5190) `fix(platform): remove the dead registries value and patch-containerd Secret`, 2 commits - [#5211](#5211) `fix(postgres): fail a backup job as soon as its cnpg Backup fails`, 1 commit - [#5155](#5155) `fix(postgres): refuse system databases and never drop them`, 1 commit - [#5207](#5207) `fix(mariadb): fail backup and restore jobs whose operator Job failed`, 5 commits - [#5024](#5024) `fix(kubernetes, monitoring): send tenant cluster metrics to the tenant's vminsert`, 1 commit ### Maintainer overrides - [#5083](#5083) `fix(workloadmonitor): stop doubling the bucket- prefix in bucket Workload names`: `backport/skip`, left out - [#4973](#4973) `fix(kubernetes-nodes): refuse a partial resources spec on every pool`: `backport/skip`, left out - [#5180](#5180) `fix(tests): keep two unit tests green after the release image restamp`: `backport/skip`, left out ### Skipped - Rule 1, already on `release-1.7`: 19 - Rule 2, the title type is not `fix` or `security`, or the scope is `deps`: 26 - Rule 3, a breaking change: 5 - Rule 4, touches platform migrations, `targetVersion` or a CRD, or makes a sizeable API change: 2 <details><summary>Rule 1, already on `release-1.7`</summary> - [#4815](#4815) `fix(vm-disk): name the importer error in the disk's WorkloadsReady message`, `its 2 commits picked, the last in 4323363` - [#4293](#4293) `fix(fluxcd): keep Helm uninstall working during flux-plunger recovery`, `its 1 commit picked, the last in 0210407` - [#4791](#4791) `fix(kubernetes): keep NFS publish from hanging on a dead server`, `its 1 commit picked, the last in fa88bd1` - [#4830](#4830) `fix(multus): drop the CPU limit and make resources configurable`, `its 2 commits picked, the last in 363c842` - [#4865](#4865) `fix(kafka): pass the container limits to the Kafka JVMs`, `its 3 commits picked, the last in fc38a54` - [#4866](#4866) `fix(linstor): mark volumes restored from a snapshot DRBD-initialized`, `its 1 commit picked, the last in f9550b7` - [#4819](#4819) `fix(seaweedfs): build SeaweedFS in-tree with a bounded S3 read-ahead`, `its 5 commits picked, the last in 7f4c346` - [#3427](#3427) `fix(backups): prepare standalone VMDisk restore targets and add VM backup/restore e2e round-trips`, `its 3 commits picked, the last in 4ac0cd5` - [#4889](#4889) `fix(monitoring): send alerts to every Alertmanager replica`, `its 1 commit picked, the last in 5033d53` - [#4929](#4929) `fix(backups): gate every default Strategy CR on its CRD`, `its 2 commits picked, the last in dee1eef` - [#4914](#4914) `fix(fluxcd): close the flux-plunger review follow-ups for the hook, drain and Warnings`, `its 7 commits picked, the last in a8e4916` - [#4939](#4939) `fix(cluster-api): resync capi-operator every minute`, `its 1 commit picked, the last in cc8d6a4` - [#5027](#5027) `fix(hack): keep the backup stack in the vminstance selective install`, `its 1 commit picked, the last in 8ba8386` - [#4955](#4955) `fix(vm-disk): let CDI adopt the PVC a Velero restore recreates`, `its 2 commits picked, the last in 691d7bc` - [#5071](#5071) `fix(marketplace): do not install a connected repository's components on connect`, `its 2 commits picked, the last in 25f8f11` - [#5086](#5086) `fix(tenant): stop the gateway release waiting on TenantGateway listeners and certificates`, `its 1 commit picked, the last in 18b2249` - [#5087](#5087) `fix(controller): carry healthCheckExprs and waitStrategy to existing releases`, `its 1 commit picked, the last in d2a452e` - [#5088](#5088) `fix(ingress-nginx): drop the admission-webhook policy a rebase brought back`, `its 1 commit picked, the last in cf00b41` - [#5142](#5142) `fix(release): keep release bodies within GitHub's size limit`, `its 1 commit picked, the last in c740515` </details> <details><summary>Rule 2, the title type is not `fix` or `security`, or the scope is `deps`</summary> - [#4845](#4845) `docs(governance): welcome new contributors and link LF sanctions guidance`, `type docs` - [#4881](#4881) `feat(bucket): add a ui flag to skip the s3manager web UI`, `type feat` - [#4899](#4899) `chore: link the FOSSA license scan for CLOMonitor`, `type chore` - [#4898](#4898) `feat(backups): back up Valkey with the Redis strategy`, `type feat` - [#4940](#4940) `docs(release): add changelog for v1.6.5`, `type docs` - [#4861](#4861) `feat(release): sign the release assets and attach a source SBOM`, `type feat` - [#3780](#3780) `docs: move the operator guides out of docs/ to where readers find them`, `type docs` - [#4936](#4936) `docs(release): check changelog claims against the code`, `type docs` - [#4959](#4959) `docs(release): point changelog check B at the Talos installer profile`, `type docs` - [#3777](#3777) `docs(agents): define where a new document belongs`, `type docs` - [#5025](#5025) `test(harbor): pin the resources of the nginx proxy and the portal`, `type test` - [#5039](#5039) `feat(keycloak): load additional CA files from Secret or ConfigMap keys`, `type feat` - [#4860](#4860) `feat(kubernetes-nodes): trust a factory CA in the Proxmox template script`, `type feat` - [#5090](#5090) `ci(e2e): end the Proxmox lane's SSH key with a newline`, `type ci` - [#4969](#4969) `test(kubernetes): pin RetryOnFailure on the Proxmox csi release`, `type test` - [#5000](#5000) `test(kubernetes): name the Proxmox fixture's node pool <cluster>-<pool>`, `type test` - [#5168](#5168) `docs(agents): steer agents away from Helm lookup`, `type docs` - [#4997](#4997) `feat(release): attach an SBOM to every release image`, `type feat` - [#3440](#3440) `ci(api-review-gate): publish the gate as a commit status`, `type ci` - [#5034](#5034) `docs: move the repo-only guides onto the website`, `type docs` - [#5215](#5215) `feat(monitoring-agents): export PVC labels from kube-state-metrics`, `type feat` - [#5217](#5217) `feat(monitoring-agents): keep application identity in container log streams`, `type feat` - [#5171](#5171) `feat(api): expose HelmRelease failure state on Application status`, `type feat` - [#5237](#5237) `feat(operator): let the platform source trust a private registry CA`, `type feat` - [#5106](#5106) `feat(release): make backports automatic with backport-batch`, `type feat` - [#4983](#4983) `feat(api): add the reservation evaluator for tenant quotas`, `type feat` </details> <details><summary>Rule 3, a breaking change</summary> - [#4790](#4790) `fix(platform)!: refuse a networking variant change on a live cluster`, `! in the title` - [#4796](#4796) `fix(vm-disk)!: refuse a golden-image clone CDI would leave unbound`, `! in the title` - [#5085](#5085) `fix(kubernetes, opensearch, foundationdb)!: restrict managed application images`, `! in the title` - [#4818](#4818) `fix(keycloak)!: make the KMS proxy keep its keys across restarts`, `! in the title` - [#5167](#5167) `fix(monitoring-agents)!: isolate merged log payload under log_processed`, `! in the title` </details> <details><summary>Rule 4, touches platform migrations, `targetVersion` or a CRD, or makes a sizeable API change</summary> - [#4941](#4941) `fix(backups): keep the backupstrategy-controller Helm release under the Secret size limit`, `a sizeable API change (breaking-change: [v1alpha1] spec.spec.template: field "metadata" was removed, and 5 more), a CRD` - [#5223](#5223) `fix(backups): report sizeBytes for MariaDB and CNPG backup artifacts`, `a CRD` </details> ```backport-batch {"line":"release-1.7","deferred":[]} ``` ### Screenshots See the original pull requests. ### Downstream repositories - [ ] No downstream repository is affected by this change - [ ] [cozystack/website](https://github.com/cozystack/website) - follow-up: - [ ] [cozystack/terraform-provider-cozystack](https://github.com/cozystack/terraform-provider-cozystack) - follow-up: - [ ] [cozystack/ansible-cozystack](https://github.com/cozystack/ansible-cozystack) - follow-up: - [ ] [cozystack/ccp](https://github.com/cozystack/ccp) - follow-up: - [ ] [cozystack/talm](https://github.com/cozystack/talm) - follow-up: - [ ] [cozystack/cozyhr](https://github.com/cozystack/cozyhr) - follow-up: - [ ] [cozystack/cozy-proxy](https://github.com/cozystack/cozy-proxy) - follow-up: - [ ] [cozystack/cozystack-telemetry-server](https://github.com/cozystack/cozystack-telemetry-server) - follow-up: - [ ] [cozystack/external-apps-example](https://github.com/cozystack/external-apps-example) - follow-up: - [ ] [cozystack/examples](https://github.com/cozystack/examples) - follow-up: - [ ] [cozystack/community](https://github.com/cozystack/community) - follow-up: ### Release note ```release-note fix(backupstrategy-controller): the ClickHouse (Altinity) and RabbitMQ backup strategy Pods now run a dedicated `backup-http-client` image (alpine + curl + jq + ca-certificates, non-root, ~7 MB) instead of the 349 MB `platform-migrations` image. Air-gapped mirrors need the new `ghcr.io/cozystack/cozystack/backup-http-client` repository. fix(e2e): a chainsaw assert in the e2e suites keeps polling through a transient API error such as an etcd leader change, instead of failing the suite long before its timeout. fix(ci): use GITHUB_TOKEN to start the initial packages build when freezing a release line fix(etcd): the tenant etcd alert etcdHighNumberOfFailedGRPCRequests now counts only the gRPC codes that the etcd mixin and the platform copy of the alert count, so the Canceled watch streams of a Kubernetes API server that stops no longer fire it on every etcd member. fix(tcp-balancer): HAProxy now takes its fd and thread caps from the replica's memory and CPU limits instead of the node, so a t1.nano balancer is no longer OOMKilled on nodes with many CPUs. maxconn follows the memory limit at about 16 connections per MiB, 2035 on t1.nano, and the pods roll once on upgrade. fix(kubernetes): the Proxmox cloud-controller-manager now runs v0.16.1, and the Proxmox CCM and CSI driver images are pinned by digest. The v0.15.0 tag referenced before was re-pushed upstream to a build that panics on start, which left every new Proxmox worker with the uninitialized taint. fix(marketplace): a tapped repository is pinned to a digest instead of following a mutable tag, so moving the tag upstream no longer changes what runs in the cluster; connect accepts oci://...@sha256:... and an optional keyless cosign verify policy (anchored to an exact identity and preserved across re-connects), and with verify flags the CLI verifies the signature and pins the verified digest at tap time. fix(dashboard): tenant name in the tenant list links to its detail page now (where Delete is), and top level tenants get their Edit button back. fix(cilium): the IPAM migration hook no longer fails with "Argument list too long" on clusters with more than a few nodes, which blocked the cilium upgrade and every package that depends on networking. fix(kubernetes): the OIDC bootstrap Job no longer fails to start for a tenant cluster with about 240 or more oidc.users, the bindings now come from a ConfigMap the Job mounts. fix(clickhouse): a RestoreJob now restores the archive its Backup was taken as, not the newest one. New Backups record the archive name, Backups taken before this release are restored best effort from the newest archive stamped no later than their takenAt, with a warning in the restore pod log. A ClickHouse BackupJob created again under a name whose Backup still exists now fails instead of reporting that Backup as its result. fix(backups): the backup controller now re-renders the Velero BSL, the default backup strategies and the platform bucket's credentials Secret when their S3 endpoint is stale, so after the platform bucket's BucketAccess is re-granted for a new publishing.host, backups move to the new endpoint without forcing releases by hand. fix(securitygroups): a SecurityGroup with attachments and no rules no longer leaves an invalid CiliumNetworkPolicy behind; its backing policy is now accepted by Cilium and still allows or denies nothing. fix(postgres): the init script renders the declared databases in a stable order, so an upgrade that leaves the databases unchanged no longer rewrites the init-script Secret. fix(mariadb-operator): the MariaDB operator now uses the platform's networking.clusterDomain instead of a hard-coded cozy.local, so replication and User/Database/Grant reconciliation work on clusters with a non-default cluster domain. fix(redis): an instance with `replicas: 1` now runs one Sentinel instead of three, without a Sentinel PodDisruptionBudget; on upgrade, the PDB the operator created earlier is deleted. Instances with two replicas or more are unchanged. fix(lineage, kubernetes): the virt-launcher pods of Kubernetes worker nodes are now resolved to their Kubernetes application and marked as managed by Cozystack, so a SecurityGroup attached to a Kubernetes cluster now applies to its worker nodes, not only to its control plane. fix(api): tenant quota admission now counts the parent pool's usage of extended resources and hugepages, so a child tenant can no longer get a share the parent has already used. After upgrading, updates to existing tenants may be rejected if their quota for these resources exceeds the parent's remaining budget. This includes updates that leave the quota unchanged. fix(postgres): a Postgres BackupJob now fails as soon as its CloudNativePG Backup fails, with the recorded error, instead of after 30 minutes, and a BackupJob waiting on a CloudNativePG Backup reports a WaitingForCNPGBackup condition with the Backup's phase. fix(postgres): databases now refuses the PostgreSQL system databases postgres, template0 and template1, and the init job never runs DROP DATABASE on them. A system database a previous version took over is handed back to the superuser on the next upgrade (event trigger removed, ownership and public schema restored, its <db>_admin and <db>_readonly roles dropped). A release that declares one of them must remove the entry before upgrading. fix(mariadb): a MariaDB BackupJob or RestoreJob whose operator Job failed now ends Failed instead of Succeeded, and a failed backup no longer creates a Ready Backup without an archive. Backups created by failed runs before this fix are not removed; restoring from one can fail or select another dump from the shared prefix. fix(kubernetes, monitoring): the vmagent of tenant Kubernetes clusters now writes to the tenant's vminsert and labels series with the owning tenant instead of `cozy-monitoring`. Previously no tenant cluster metric reached the tenant's Monitoring. ```
## What this PR does Backports to `release-1.7` from `main`, picked by the rules of the [backport policy](https://github.com/cozystack/cozystack/blob/main/docs/release/backports.md) in merge order. A merged pull request comes as its own commits, picked with `git cherry-pick -x` so each keeps its author, message and sign-offs, and a merge commit that carries the original's merge message with a `Backported-from:` trailer naming it; a squash-merged one comes as one pick. `backport-batch verify` checks that shape. A pick listed as changed differs from the commit it came from; `git range-diff <merge>^1..<merge>^2 <batch merge>^1..<batch merge>^2` shows how. A conflict or a failing check here is a [backport task](https://github.com/cozystack/cozystack/blob/main/docs/release/backport-tasks/README.md). - [#5284](#5284) `fix(seaweedfs): bump the COSI driver to v0.4.0 for the lost-grant fix`, 1 commit ### Maintainer overrides - [#5083](#5083) `fix(workloadmonitor): stop doubling the bucket- prefix in bucket Workload names`: `backport/skip`, left out - [#4973](#4973) `fix(kubernetes-nodes): refuse a partial resources spec on every pool`: `backport/skip`, left out - [#5180](#5180) `fix(tests): keep two unit tests green after the release image restamp`: `backport/skip`, left out ### Skipped - Rule 1, already on `release-1.7`: 46 - Rule 2, the title type is not `fix` or `security`, or the scope is `deps`: 31 - Rule 3, a breaking change: 5 - Rule 4, touches platform migrations, `targetVersion` or a CRD, or makes a sizeable API change: 2 <details><summary>Rule 1, already on `release-1.7`</summary> - [#4815](#4815) `fix(vm-disk): name the importer error in the disk's WorkloadsReady message`, `its 2 commits picked, the last in 4323363` - [#4756](#4756) `fix(backupstrategy-controller): run backup clients on a package-owned image`, `its 2 commits picked, the last in 4643366` - [#4293](#4293) `fix(fluxcd): keep Helm uninstall working during flux-plunger recovery`, `its 1 commit picked, the last in 0210407` - [#4791](#4791) `fix(kubernetes): keep NFS publish from hanging on a dead server`, `its 1 commit picked, the last in fa88bd1` - [#4830](#4830) `fix(multus): drop the CPU limit and make resources configurable`, `its 2 commits picked, the last in 363c842` - [#4865](#4865) `fix(kafka): pass the container limits to the Kafka JVMs`, `its 3 commits picked, the last in fc38a54` - [#4866](#4866) `fix(linstor): mark volumes restored from a snapshot DRBD-initialized`, `its 1 commit picked, the last in f9550b7` - [#4867](#4867) `fix(e2e): keep chainsaw asserts polling through transient API errors`, `its 1 commit picked, the last in df75adc` - [#4819](#4819) `fix(seaweedfs): build SeaweedFS in-tree with a bounded S3 read-ahead`, `its 5 commits picked, the last in 7f4c346` - [#3427](#3427) `fix(backups): prepare standalone VMDisk restore targets and add VM backup/restore e2e round-trips`, `its 3 commits picked, the last in 4ac0cd5` - [#4889](#4889) `fix(monitoring): send alerts to every Alertmanager replica`, `its 1 commit picked, the last in 5033d53` - [#4929](#4929) `fix(backups): gate every default Strategy CR on its CRD`, `its 2 commits picked, the last in dee1eef` - [#4914](#4914) `fix(fluxcd): close the flux-plunger review follow-ups for the hook, drain and Warnings`, `its 7 commits picked, the last in a8e4916` - [#4888](#4888) `fix(ci): dispatch frozen-line builds with GITHUB_TOKEN`, `its 1 commit picked, the last in bf81e2d` - [#4939](#4939) `fix(cluster-api): resync capi-operator every minute`, `its 1 commit picked, the last in cc8d6a4` - [#5027](#5027) `fix(hack): keep the backup stack in the vminstance selective install`, `its 1 commit picked, the last in 8ba8386` - [#4955](#4955) `fix(vm-disk): let CDI adopt the PVC a Velero restore recreates`, `its 2 commits picked, the last in 691d7bc` - [#4985](#4985) `fix(etcd): stop counting canceled watch streams as failed gRPC requests`, `its 1 commit picked, the last in 38e4089` - [#5005](#5005) `fix(tcp-balancer): cap HAProxy fds and threads by the pod's own limits`, `its 1 commit picked, the last in 7a3d0b0` - [#5071](#5071) `fix(marketplace): do not install a connected repository's components on connect`, `its 2 commits picked, the last in 25f8f11` - [#5086](#5086) `fix(tenant): stop the gateway release waiting on TenantGateway listeners and certificates`, `its 1 commit picked, the last in 18b2249` - [#5087](#5087) `fix(controller): carry healthCheckExprs and waitStrategy to existing releases`, `its 1 commit picked, the last in d2a452e` - [#5088](#5088) `fix(ingress-nginx): drop the admission-webhook policy a rebase brought back`, `its 1 commit picked, the last in cf00b41` - [#5142](#5142) `fix(release): keep release bodies within GitHub's size limit`, `its 1 commit picked, the last in c740515` - [#4917](#4917) `fix(kubernetes): run Proxmox CCM v0.16.1 and pin the Proxmox images by digest`, `its 2 commits picked, the last in 8ff6dca` - [#4974](#4974) `fix(kubernetes-nodes): plan autoscaler capacity on the cores the VM actually gets`, `its 1 commit picked, the last in d68a163` - [#4971](#4971) `fix(e2e): keep the Proxmox tenant kubeconfig per run and remove it`, `its 2 commits picked, the last in 77227c5` - [#4970](#4970) `fix(e2e): read the KubernetesNodes pool release in the HelmRelease guard`, `its 3 commits picked, the last in 6b17a76` - [#4972](#4972) `fix(e2e): validate the leak allowlist against every suite layout`, `its 3 commits picked, the last in 7ec550b` - [#5082](#5082) `fix(marketplace): pin a tapped repository to a digest instead of a mutable tag`, `its 15 commits picked, the last in 9cff86f` - [#4004](#4004) `fix(dashboard): link a tenant row to its detail page`, `its 2 commits picked, the last in bd5e0b5` - [#5212](#5212) `fix(cilium): pass the CiliumNode list to jq on stdin in the IPAM hook`, `its 1 commit picked, the last in b28a2e2` - [#5213](#5213) `fix(kubernetes): move the OIDC users out of the bootstrap Job's script`, `its 1 commit picked, the last in 02dd8e5` - [#5208](#5208) `fix(clickhouse): restore the archive a Backup was taken as`, `its 3 commits picked, the last in 9ded5c5` - [#5230](#5230) `fix(backups): re-render the default backup objects when the S3 endpoint changes`, `its 8 commits picked, the last in 490eab5` - [#5133](#5133) `fix(securitygroups): project a membership-only group to a policy Cilium accepts`, `its 1 commit picked, the last in b7c50a5` - [#5091](#5091) `fix(postgres): render the declared databases in a stable order`, `its 1 commit picked, the last in b658dff` - [#5123](#5123) `fix(mariadb-operator): derive the cluster name from the platform domain`, `its 2 commits picked, the last in 17702dd` - [#5151](#5151) `fix(redis): run one Sentinel when Redis runs a single pod`, `its 5 commits picked, the last in 5524a41` - [#5124](#5124) `fix(lineage, kubernetes): resolve CAPK node VMs to their cluster`, `its 2 commits picked, the last in c908560` - [#5184](#5184) `fix(api): read pool usage under the quota key the controller counts`, `its 1 commit picked, the last in 18c17af` - [#5190](#5190) `fix(platform): remove the dead registries value and patch-containerd Secret`, `its 2 commits picked, the last in 617f889` - [#5211](#5211) `fix(postgres): fail a backup job as soon as its cnpg Backup fails`, `its 1 commit picked, the last in 6645e21` - [#5155](#5155) `fix(postgres): refuse system databases and never drop them`, `its 1 commit picked, the last in 6f1bb80` - [#5207](#5207) `fix(mariadb): fail backup and restore jobs whose operator Job failed`, `its 5 commits picked, the last in ef3de55` - [#5024](#5024) `fix(kubernetes, monitoring): send tenant cluster metrics to the tenant's vminsert`, `its 1 commit picked, the last in 423a75b` </details> <details><summary>Rule 2, the title type is not `fix` or `security`, or the scope is `deps`</summary> - [#4845](#4845) `docs(governance): welcome new contributors and link LF sanctions guidance`, `type docs` - [#4881](#4881) `feat(bucket): add a ui flag to skip the s3manager web UI`, `type feat` - [#4899](#4899) `chore: link the FOSSA license scan for CLOMonitor`, `type chore` - [#4898](#4898) `feat(backups): back up Valkey with the Redis strategy`, `type feat` - [#4940](#4940) `docs(release): add changelog for v1.6.5`, `type docs` - [#4861](#4861) `feat(release): sign the release assets and attach a source SBOM`, `type feat` - [#3780](#3780) `docs: move the operator guides out of docs/ to where readers find them`, `type docs` - [#4936](#4936) `docs(release): check changelog claims against the code`, `type docs` - [#4959](#4959) `docs(release): point changelog check B at the Talos installer profile`, `type docs` - [#3777](#3777) `docs(agents): define where a new document belongs`, `type docs` - [#5025](#5025) `test(harbor): pin the resources of the nginx proxy and the portal`, `type test` - [#5039](#5039) `feat(keycloak): load additional CA files from Secret or ConfigMap keys`, `type feat` - [#4860](#4860) `feat(kubernetes-nodes): trust a factory CA in the Proxmox template script`, `type feat` - [#5090](#5090) `ci(e2e): end the Proxmox lane's SSH key with a newline`, `type ci` - [#4969](#4969) `test(kubernetes): pin RetryOnFailure on the Proxmox csi release`, `type test` - [#5000](#5000) `test(kubernetes): name the Proxmox fixture's node pool <cluster>-<pool>`, `type test` - [#5168](#5168) `docs(agents): steer agents away from Helm lookup`, `type docs` - [#4997](#4997) `feat(release): attach an SBOM to every release image`, `type feat` - [#3440](#3440) `ci(api-review-gate): publish the gate as a commit status`, `type ci` - [#5034](#5034) `docs: move the repo-only guides onto the website`, `type docs` - [#5215](#5215) `feat(monitoring-agents): export PVC labels from kube-state-metrics`, `type feat` - [#5217](#5217) `feat(monitoring-agents): keep application identity in container log streams`, `type feat` - [#5171](#5171) `feat(api): expose HelmRelease failure state on Application status`, `type feat` - [#5237](#5237) `feat(operator): let the platform source trust a private registry CA`, `type feat` - [#5106](#5106) `feat(release): make backports automatic with backport-batch`, `type feat` - [#4983](#4983) `feat(api): add the reservation evaluator for tenant quotas`, `type feat` - [#5264](#5264) `feat(release): keep a line's backport record and reports across batch pull requests`, `type feat` - [#5260](#5260) `ci(e2e): skip final cleanup on disposable PR runners`, `type ci` - [#5046](#5046) `feat(backups): record the RDB snapshot location and size for Redis backups`, `type feat` - [#5214](#5214) `feat(observability-proxy): serve tenant namespace logs through an authorizing proxy`, `type feat` - [#5282](#5282) `test(release): isolate report deduplication from workflow attempts`, `type test` </details> <details><summary>Rule 3, a breaking change</summary> - [#4790](#4790) `fix(platform)!: refuse a networking variant change on a live cluster`, `! in the title` - [#4796](#4796) `fix(vm-disk)!: refuse a golden-image clone CDI would leave unbound`, `! in the title` - [#5085](#5085) `fix(kubernetes, opensearch, foundationdb)!: restrict managed application images`, `! in the title` - [#4818](#4818) `fix(keycloak)!: make the KMS proxy keep its keys across restarts`, `! in the title` - [#5167](#5167) `fix(monitoring-agents)!: isolate merged log payload under log_processed`, `! in the title` </details> <details><summary>Rule 4, touches platform migrations, `targetVersion` or a CRD, or makes a sizeable API change</summary> - [#4941](#4941) `fix(backups): keep the backupstrategy-controller Helm release under the Secret size limit`, `a sizeable API change (breaking-change: [v1alpha1] spec.spec.template: field "metadata" was removed, and 5 more), a CRD` - [#5223](#5223) `fix(backups): report sizeBytes for MariaDB and CNPG backup artifacts`, `a CRD` </details> ```backport-batch {"version":2,"line":"release-1.7","built":{"main":"76a34d3e53a14c39d8df63eec6271c2eaae5ffea","line":"3cd9d4c220b519972677c7ff756ae6c4db07ef4a","newer":"","policy":"76a34d3e53a14c39d8df63eec6271c2eaae5ffea","batch":"e27d6630a0008381f0bc105a87d117dfcc29680f","tool":"76a34d3e53a14c39d8df63eec6271c2eaae5ffea","run":"https://github.com/cozystack/cozystack/actions/runs/43209950053","at":"2026-11-12T11:33:16Z","options":{"noWorkflowFiles":true,"mode":"new"}},"report":"9ca0285a0bb30a09736f6a430878b3ce0d32a2811639861e80daa549f208d7b3","closing":null,"deferred":[],"dropped":[],"stale":[]} ``` ```backport-batch-report {"format":1,"id":"9ca0285a0bb30a09736f6a430878b3ce0d32a2811639861e80daa549f208d7b3","line":"release-1.7","built":{"main":"76a34d3e53a14c39d8df63eec6271c2eaae5ffea","line":"3cd9d4c220b519972677c7ff756ae6c4db07ef4a","newer":"","policy":"76a34d3e53a14c39d8df63eec6271c2eaae5ffea","batch":"e27d6630a0008381f0bc105a87d117dfcc29680f","tool":"76a34d3e53a14c39d8df63eec6271c2eaae5ffea","run":"https://github.com/cozystack/cozystack/actions/runs/43209950053","at":"2026-11-12T11:33:16Z","options":{"noWorkflowFiles":true,"mode":"new"}},"overrides":{"backport/include":[],"backport/skip":[4973,5083,5180]},"primary":{"picked":[5284],"missing":[],"deferred":[],"parked":[],"skipped":{"on-line":[3427,4004,4293,4756,4791,4815,4819,4830,4865,4866,4867,4888,4889,4914,4917,4929,4939,4955,4970,4971,4972,4974,4985,5005,5024,5027,5071,5082,5086,5087,5088,5091,5123,5124,5133,5142,5151,5155,5184,5190,5207,5208,5211,5212,5213,5230],"before-start":[],"type":[3440,3777,3780,4845,4860,4861,4881,4898,4899,4936,4940,4959,4969,4983,4997,5000,5025,5034,5039,5046,5090,5106,5168,5171,5214,5215,5217,5237,5260,5264,5282],"breaking":[4790,4796,4818,5085,5167],"touches":[4941,5223],"newer":[],"skip-label":[4973,5083,5180],"dropped":[]}},"overlays":{"dropped":[],"stale":[],"changed":[]},"diag":{},"other":[]} ``` ### Screenshots See the original pull requests. ### Downstream repositories - [ ] No downstream repository is affected by this change - [ ] [cozystack/website](https://github.com/cozystack/website) - follow-up: - [ ] [cozystack/terraform-provider-cozystack](https://github.com/cozystack/terraform-provider-cozystack) - follow-up: - [ ] [cozystack/ansible-cozystack](https://github.com/cozystack/ansible-cozystack) - follow-up: - [ ] [cozystack/ccp](https://github.com/cozystack/ccp) - follow-up: - [ ] [cozystack/talm](https://github.com/cozystack/talm) - follow-up: - [ ] [cozystack/cozyhr](https://github.com/cozystack/cozyhr) - follow-up: - [ ] [cozystack/cozy-proxy](https://github.com/cozystack/cozy-proxy) - follow-up: - [ ] [cozystack/cozystack-telemetry-server](https://github.com/cozystack/cozystack-telemetry-server) - follow-up: - [ ] [cozystack/external-apps-example](https://github.com/cozystack/external-apps-example) - follow-up: - [ ] [cozystack/examples](https://github.com/cozystack/examples) - follow-up: - [ ] [cozystack/community](https://github.com/cozystack/community) - follow-up: ### Release note ```release-note fix(seaweedfs): bucket users granted together could get S3 keys that never work (403 InvalidAccessKeyId). COSI driver is bumped to v0.4.0, which writes each grant to per-identity IAM file. ```
What this PR does
The virt-launcher pods of Kubernetes worker nodes are never marked as managed by the lineage webhook, so anything that relies on the webhook having resolved them misses them. The visible symptom: a SecurityGroup attached to a
Kubernetesapplication labels the control-plane pods but never the worker nodes, because the securitygroup-controller caches only pods carryinginternal.cozystack.io/managed-by-cozystack=true.Root cause. The webhook is not skipped for these pods (they do not carry the managed-by label, so the
objectSelectorlets them through); it runs and fails to resolve their owner chain. The walk goes Pod → VirtualMachineInstance → VirtualMachine and stops there: the Cluster API KubeVirt provider creates the VirtualMachine with no ownerReference and links it to its KubevirtMachine through thecapk.cluster.x-k8s.io/kubevirt-machine-{name,namespace}labels only. With no ownerReference, no HelmRelease kind and nohelm.toolkit.fluxcd.io/namelabel on the VM,WalkOwnershipGraphreturns no ancestor,computeLabelsreturns nothing and the pod is admitted unmanaged. Theapps.cozystack.io/application.{group,kind,name}labels the pods do carry come from theKubevirtMachineTemplateinpackages/apps/kubernetes-nodes/templates/nodegroup.yaml, not from the webhook.Measured on a v1.6.5 cluster. Every Kubernetes cluster on it showed the same shape (three clusters across two tenants). For one worker node: the pod carries the three lineage labels but not
managed-by-cozystack; the pod is owned by its VMI and the VMI by its VM; the VM has no ownerReferences, and its labels includecapk.cluster.x-k8s.io/kubevirt-machine-nameandcapk.cluster.x-k8s.io/kubevirt-machine-namespacepointing at a KubevirtMachine in the same namespace. From there ownerReferences run KubevirtMachine → Machine → MachineSet → MachineDeployment → Cluster, and the CAPI Cluster carrieshelm.toolkit.fluxcd.io/name: kubernetes-<name>. The bridge is one hop. Settingmanaged-by-cozystack=trueby hand on a worker's virt-launcher pod made the securitygroup-controller stamp the membership label within ten seconds.Fix.
WalkOwnershipGraphnow follows a VirtualMachine without ownerReferences to the KubevirtMachine named by its CAPK labels, and keeps walking from there. Node pods then resolve to the parentKubernetesapplication, which is the attribution the machine template already hard-codes, and they getmanaged-by-cozystacklike every other managed pod. The bridge is only taken when the label names the VM's own namespace: CAPK can target an external infrastructure cluster, and the walk must never attribute an object across namespaces. The webhook's ClusterRole already grantsgeton every resource, so no RBAC change is needed.Why at the source rather than in the consumer. Relaxing the securitygroup-controller's pod cache to
apps.cozystack.io/application.kindExists would also have fixed the symptom, but it would leave every other consumer of the managed-by label blind to node pods, and it would rest membership on labels the webhook never vouched for. Stampingmanaged-by-cozystackfrom the machine template was ruled out too: theobjectSelectorwould then skip these pods entirely, and they would lose the scheduling-class injection the webhook performs on every pod.Blast radius. Only objects below a CAPK VM change: the VMI, the virt-launcher pods and the PVCs of the VM's
dataVolumeTemplatesnow get the lineage labels of their Kubernetes application. None of them match a resource selector of theKubernetesApplicationDefinition, so they gettenantresource=false. Nothing selects PVCs onapplication.kind=Kubernetes(the Velero strategy selectsVMDisk). The-userdatacloud-init Secret CAPK creates is not affected either way: at the pinned provider commit,reconcileKubevirtBootstrapSecretcreates it with the bootstrap Secret's labels and no ownerReferences, so the walk reaches neither the VM nor the KubevirtMachine from it, before or after this change. Existing node pods pick the labels up on their next admission (recreation, live migration, or any update).Tests.
pkg/lineage/capk_test.gobuilds the observed chain in a fake dynamic client and checks that a worker's virt-launcher pod resolves toKubernetes/cluster-a, that a VM pointing at a KubevirtMachine in another namespace is not followed, that a VM without CAPK labels still has no ancestor, and, in a table of negative cases, that the CAPK labels are ignored on any object other than akubevirt.io/v1VirtualMachine (another kind of thekubevirt.iogroup, a VirtualMachineInstance, a VirtualMachine of another group or version). Weakening the kind and API version guard to match on either field alone fails all four cases. With the bridge disabled, the first test fails. No chainsaw case: the only suites that bring up worker VMs arekubernetes-latestandkubernetes-previous, whose shared runner script is already over its time budget, and the unit test covers the walk exactly as it runs in the webhook.Screenshots
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