Address review feedback from gemini-code-assist on
packages/system/postgres-operator/templates/webhook-ready-hook.yaml:115.
The wait container had no resource requests or limits, so schedulers
treated it as BestEffort and downstream quota enforcement had no signal.
Set small requests (10m CPU, 32Mi memory) and conservative limits
(100m CPU, 64Mi memory) matching the actual footprint of the kubectl
polling loop.
Add a matching unittest assertion so the values stay in sync if anyone
touches the template.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
Address review feedback from gemini-code-assist on
packages/system/postgres-operator/templates/webhook-ready-hook.yaml:83.
The Job targets the cnpg-webhook-service/services/proxy subresource, which
is namespaced and lives in the release namespace. A namespaced Role and
RoleBinding grant the exact permission needed without creating global
RBAC for a namespaced probe, which is the principle of least privilege.
Also update the kind assertions in tests/webhook-ready-hook_test.yaml so
the unittest suite tracks the new Role/RoleBinding objects.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
The cnpg admission webhook's controller pod passes readinessProbe as soon
as the local HTTPS server binds to :9443. The HelmRelease marks itself
Ready right after that via helm install --wait. But the Service
cnpg-webhook-service needs its EndpointSlice populated and the data plane
(kube-proxy / cilium) programmed before kube-apiserver can reach the
webhook through the Service ClusterIP. That gap is short but not zero,
and any HelmRelease that depends on postgres-operator (cozy-keycloak,
tenant Postgres apps) can fire its own install inside the window and hit
Internal error occurred: failed calling webhook "mcluster.cnpg.io":
failed to call webhook: Post "https://cnpg-webhook-service.cozy-postgres-operator.svc:443/...":
dial tcp <svc-ip>:443: connect: connection refused
which fails the install of the downstream release. Seen on cozystack/cozystack#2470
E2E run 24862782568.
Add a post-install,post-upgrade Helm hook Job that blocks the release
from reporting Ready until the webhook answers /readyz through the
apiserver service proxy. Apiserver proxy routes the call over the same
Service IP → EndpointSlice → pod path the admission webhook uses, so
once it responds, the webhook admission path is also working.
RBAC is minimal: a dedicated ServiceAccount with a ClusterRole that only
grants get on services/proxy scoped to https:cnpg-webhook-service:webhook-server.
The Job times out after 120s with 60 attempts at 2s intervals — longer
than any data-plane programming delay seen on E2E, but bounded.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
