## What this PR does
Introduces a tenant-facing `SecurityGroup` resource in a new
`sdn.cozystack.io/v1alpha1` API group, served by the Cozystack
aggregated API server as a 1:1 projection of a `CiliumNetworkPolicy`. A
SecurityGroup attaches to one of the tenant's managed applications by
reference (`spec.targetRef: {apiGroup, kind, name}`) and declares
allow-list ingress/egress for that application. Tenants manage network
policy for their own apps entirely through
`securitygroups.sdn.cozystack.io`, without being granted any access to
the `cilium.io` API group.
The translation is synchronous and stateless — the API server converts
each SecurityGroup into a CiliumNetworkPolicy in the same namespace on
write and back on read; there is no controller. The backing policy's
`endpointSelector` is **derived** from `targetRef` (matched on the
application's lineage labels
`apps.cozystack.io/application.{group,kind,name}`), never copied from
tenant input, so the selector is machine-generated and can only ever
match the referenced application's own pods in the tenant's namespace.
Policies owned by this API carry an `sdn.cozystack.io/securitygroup`
marker label that the storage always re-asserts and hides from the view,
so it only ever surfaces or mutates its own policies and never touches
platform-managed network policies.
The value is self-service network policy on a Cozystack-native,
RBAC-scoped surface, without exposing Cilium's version-coupled CRDs to
tenants. Because the selector is derived from an authorized application
reference rather than free-form tenant input, the RBAC boundary is
structural, not selector-validated: a tenant cannot express network
policy against arbitrary or platform-owned pods. The full design —
selector derivation from lineage labels, the structural boundary, the
additive-policy reality (a SecurityGroup widens a managed application's
allowed traffic but cannot sever its platform-managed management plane,
and equally cannot tighten below the platform baseline), the in-tree
CiliumNetworkPolicy mirror that avoids a Cilium Go-module dependency,
RBAC, and deferred extensions (raw-pod targeting, cluster scope,
reusable groups) — is in `pkg/apis/sdn/DESIGN.md`.
Implements the attachment model from #1614.
### Release note
```release-note
feat(api): add the SecurityGroup resource (sdn.cozystack.io/v1alpha1) — a tenant-facing, namespace-scoped firewall that attaches to a managed application by reference and projects 1:1 onto a CiliumNetworkPolicy with a machine-derived endpoint selector, letting tenants manage their application's network policy without cilium.io access.
```
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added the `SecurityGroup` API resource (`sdn.cozystack.io` v1alpha1)
with a namespaced projection backed by Cilium network policies.
* Enabled the SDN `APIService` and wired SDN routing, scheme, and REST
support.
* Expanded RBAC to include SecurityGroup access and required Cilium
policy permissions.
* **Documentation**
* Added a design document describing projection behavior and rule
semantics.
* **Bug Fixes**
* Improved API rule validation coverage for missing list-type fields.
* **Tests**
* Added SDN round-trip, fuzzing, RBAC, and comprehensive REST
create/get/list/update/delete/watch/resource-version tests.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
The vm-disk pvc-resize, cozystack-api, seaweedfs and vm-instance update
hooks (whose alpine/k8s image this PR refreshes) ran as root with no
securityContext. Add a pod-level runAsNonRoot + runAsUser 65534 +
seccompProfile RuntimeDefault and a container-level
allowPrivilegeEscalation: false + capabilities drop ALL, mirroring the
dashboard adopt hook. kubectl needs no root, so this is behavior-neutral.
Each hook is lookup-gated; pin the securityContext in a per-chart
helm-unittest that mocks the gating object (DaemonSet / PVC / Service) via
kubernetesProvider so the guard renders without a cluster. vm-disk and
vm-instance had no Makefile test target, so add 'test: helm unittest .' to
both so CI runs the new suites.
Scope note: other kubectl hooks on clastix/kubectl (mariadb, keycloak,
kubernetes, tenant) are untouched here — they are not part of this
alpine/k8s refresh and belong to a separate hardening pass.
Also fix the vm-disk resize hook's backoffLimit: it was nested under the
pod spec (silently ignored, leaving the Job at the default 6 retries)
instead of Job.spec. Move it to Job.spec and pin it in the test.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
Register the v1alpha1.sdn.cozystack.io aggregated APIService, grant the
cozystack-api ServiceAccount full access to CiliumNetworkPolicy (the
backing object for SecurityGroup), and let tenants self-service their
SecurityGroups: full access in the base tenant role and read access in
the view role, mirroring how apps.cozystack.io resources are exposed.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
Co-authored-by: Timofei Larkin <lllamnyp@gmail.com>
The Option providers RBAC block granted read on
objectstorage.k8s.io/bucketclasses, but no provider in the registry lists
BucketClasses and no schema field references a bucketclass source — the
bucket app's storage pool field uses the storagepool provider, which reads
seaweedfs HelmReleases. Drop the unused grant and pin its absence in the
chart test.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
The plan and backup option providers list namespaced plans and backups in
the backups.cozystack.io group, but the cozystack-api ClusterRole only
granted backupclasses there. The apiserver's privileged client runs as this
ServiceAccount, so both providers got forbidden — List silently dropped the
sources and Get returned 500, leaving the plan/backup dropdowns in the
backup forms empty.
Add plans and backups to the backups.cozystack.io rule and cover the grant
with a chart test.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
Replace ingress-nginx as the default ingress layer for cozystack-native
services with Cilium Gateway API, materialised per-tenant via a new
TenantGateway CRD reconciled by cozystack-controller.
The extra/gateway chart renders one gateway.cozystack.io/v1alpha1
TenantGateway per tenant; the controller owns the resulting Gateway,
per-tenant Issuer, Certificate(s), and the http->https redirect
HTTPRoute. This avoids the helm-vs-controller race on
Gateway.spec.listeners when route-driven listeners are added.
publishing.certificates.solver selects HTTP-01 (default; per-app HTTPS
listener + per-app Certificate) or DNS-01 (opt-in; single wildcard
Certificate per apex; providers: cloudflare, route53, digitalocean,
rfc2136). HTTP-01 keeps zero-config per-app onboarding; DNS-01 saves
Let's Encrypt budget on apex-shared clusters.
Security model -- seven independent layers, all admission-time gates
fail-closed:
1. Listener allowedRoutes namespace whitelist via the
kube-apiserver-written kubernetes.io/metadata.name label;
plain-HTTP listener is strictly narrower than HTTPS, and HTTPS /
passthrough listeners restrict allowedRoutes.kinds to
HTTPRoute / TLSRoute respectively.
2. cozystack-gateway-hostname-policy VAP on Gateway.
3. cozystack-gateway-attached-namespaces-policy VAP on Package --
blocks tenant-* in gateway.attachedNamespaces.
4. cozystack-tenant-host-policy VAP on Tenant -- blocks spec.host
writes from non-trusted callers.
5. cozystack-namespace-host-label-policy VAP on Namespace -- blocks
writes to namespace.cozystack.io/host from non-trusted callers.
6. Render-time fail in cozystack-basics for tenant-* in
gateway.attachedNamespaces.
7. cozystack-route-hostname-policy VAP on HTTPRoute / TLSRoute,
scoped to tenant-* namespaces.
Within-apex cross-namespace hostname conflict is resolved at reconcile
time by a HostnameConflict condition (cozy-* namespace wins).
Five reconcile paths refuse to rewrite pre-existing objects with the
controller-derived name but no OwnerReference back to the
TenantGateway: Gateway, redirect HTTPRoute, per-tenant Issuer, wildcard
Certificate, per-listener Certificate.
Derived-apex tenants (tenants whose host is a subdomain of a parent
tenant's) auto-enable Gateway when the platform-level gateway.enabled
is on.
Bonus fix: pkg/registry/apps/application/rest.go was ignoring the
createValidation and deleteValidation callbacks that genericapiserver
hands to every storage method, silently bypassing admission for Create
and Delete on every apps.cozystack.io resource (Tenant, MariaDB,
Postgres, Kubernetes, ...). Aligned with the existing updateValidation
pattern.
Always-on changes: cilium.envoy.enabled + cilium.gatewayAPI.enabled
flip to true (extra cilium-envoy DaemonSet, ~100 MB RAM/node idle),
and the cozystack-api admission-chain fix. Everything else is gated
behind gateway.enabled=false and tenant.spec.gateway=false; existing
clusters see no behavioural change until an operator opts in.
Tests: 60+ Go cases in internal/controller/tenantgateway/, admission-
chain regression tests in pkg/registry/apps/application/, helm-unittest
across 7 charts (extra/gateway, core/platform, apps/tenant,
system/cozystack-basics, system/cert-manager-issuers,
system/cozystack-api, system/dashboard), and 14 e2e bats scenarios in
hack/e2e-apps/gateway.bats. New make test-controllers target wired
into pull-requests.yaml.
Deps: sigs.k8s.io/gateway-api v1.4.1, cert-manager v1.17.4.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
Aleksei Sviridkin