fix(opensearch-operator): align DNS_BASE with the platform cluster domain - #4185

Actionable comments posted: 2

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Inline comments:
In `@packages/system/bootbox/charts/smee/templates/deployment.yaml`:
- Around line 7-8: Update the repo-owned global-nil-safe patch so the global
publicIP and trustedProxies values precede local values in coalesce, giving
global overrides precedence while preserving nil-safe access and the existing
publicIP default behavior. Regenerate the vendored chart from that patch, and
add a rendering case covering both local and global values to verify the global
values win.

In `@packages/system/opensearch-operator/patches/leaderElection.diff`:
- Line 46: The DNS_BASE value must render as a quoted YAML string even when the
cluster domain is YAML-coercible, such as 123. Update the expression in
packages/system/opensearch-operator/patches/leaderElection.diff at line 46 to
quote the complete defaulted value, regenerate the corresponding vendored
template at
packages/system/opensearch-operator/charts/opensearch-operator/templates/opensearch-operator-controller-manager-deployment.yaml:90
from that patch without a direct template edit, and add a regression case
covering the numeric domain value.

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Verdict

LGTM with notes. Nothing blocking in the change itself; it needs a rebase before it can go anywhere (mergeStateStatus: DIRTY, one conflicting file, packages/core/platform/templates/apps.yaml), and there is one thing I would rather see land with it than after it.

Why, and whether the mechanism fits

The defect is a straightforward mismatch and the tree shows both halves. packages/system/opensearch-operator/charts/opensearch-operator/values.yaml:59 carries the upstream default dnsBase: cluster.local, while the platform's own domain is cozy.local (packages/core/platform/values.yaml:69). The app chart was already doing the right thing — packages/apps/opensearch/templates/security.yaml:1 reads _cluster["cluster-domain"] and composes the URIs from it — so the operator and the application disagreed about the same cluster.

Reaching the operator is genuinely harder than reaching the app, and the reasoning in the PR holds up. charts/opensearch-operator is a real subchart, Helm does not propagate ordinary parent values into subcharts, and the wrapper's values.yaml is not templated, so it cannot interpolate anything. That leaves the reserved global key, which is what the patch uses.

Worth saying explicitly, because it reads as a deviation and is not: this does not match what the repo does today, and that is the point. Two packages already solve exactly this problem by hardcoding the literal — packages/system/nats/values.yaml:11 (k8sClusterDomain: cozy.local) and packages/system/mariadb-operator/values.yaml:2 (clusterName: cozy.local). The smallest possible patch here would have been a third one-line hardcode with no vendored-chart edit at all. Declining that is right: networking.clusterDomain is configurable, and a Cozystack installed over an existing kubeadm or k3s cluster stays on cluster.local. A literal would be correct on the default install and wrong on those. This is the better convention, and I would like the other two to follow it eventually. packages/system/victoria-metrics-operator/charts/victoria-metrics-operator/values.yaml:13 (dnsDomain: cluster.local.) is the same class and is not overridden at all — a candidate for the same treatment.

The alternative the body names and rejects — threading it through Package.spec.components[].values, which exists (api/v1alpha1/package_types.go:65-82) and is already used by the bundles (packages/core/platform/templates/bundles/system.yaml:52,140,152) — is real and would have had a blast radius of exactly one package. The argument against it (per-package rather than platform-wide) stands, and this is the more general fix. Not blocking; recording it so the next reader does not re-derive the choice.

The part that deserved the care it got

Adding global: to the shared values Secret (apps.yaml) is not a local change — Helm propagates the reserved key into every subchart in the platform, so this touches every chart at once. That is the risk in this PR, and the body's account of it is unusually honest. I had the 169-chart sweep re-run independently rather than take it on trust: rendering every packages/*/* chart with and without global.clusterDomain set, no package moves from rendering to failing, and the only semantic difference is the intended one in opensearch-operator. The one key collision — packages/system/monitoring-agents/values.yaml:1-2 already owning a global: map read by templates/vmagent.yaml:13 — survives the deep merge with identical output. Tenant namespaces are untouched, since the tenant Secret carries only _cluster and _namespace (packages/apps/tenant/templates/namespace.yaml:107-128).

One chart did need fixing, and the PR fixes it properly rather than working around it: bootbox's vendored smee templates go through a new patches/global-nil-safe.diff, with packages/system/bootbox/Makefile:17 applying it inside update: so a re-vendor does not silently drop it, and tests/smee_global_values_test.yaml pinning the behaviour. The same discipline holds on the opensearch side — the vendored deployment template is edited and the hunk is added to patches/leaderElection.diff:41-49, which packages/system/opensearch-operator/Makefile:11 re-applies. That is the rule that matters most in this repo and both packages follow it.

Test wiring is right too, which is not automatic here: hack/helm-unit-tests.sh finds a suite only by probing make -n test, so a tests/ directory without a test: target runs in no CI and reports no error. Bootbox had neither before; this PR adds the directory and the target together (Makefile:19-20). The other two packages already had theirs (opensearch-operator/Makefile:13, core/platform/Makefile:6).

The one thing I would rather see in this PR

The release note asks every operator to delete a stuck <release>-securityconfig-update Job by hand. By the PR's own reasoning that Job is already wedged on every existing OpenSearch installation on cozy.local, so this is not a corner case — it is a manual step for everyone the fix is for. And the failure it leaves behind is the quiet kind: without the deletion the securityconfig never applies, users and roles never sync, and nothing says so.

The repo has the mechanism for exactly this. packages/core/platform/images/migrations/migrations/ holds one-shot upgrade fixups as bash plus kubectl under a pre-upgrade hook (run-migrations.sh), the last one numbered 56. Migration 57 removes the manual step entirely, and the ordering works: the hook runs before the operator restarts, and the next reconcile recreates the Job against the corrected hostname. Doing it in the chart instead would be worse — the Jobs live in tenant namespaces and it would need cluster-wide delete.

Not blocking, because the fix here is correct and holding it hostage to a convenience migration would leave the actual bug in place longer. But I would like 57 to land in the same release rather than as a follow-up, and if it is not going to, I would rather the reason were written down than the step simply carried in a release note.

Two smaller ones. The (.Values.global) parenthesisation from the head commit is what makes the subchart render standalone — through the umbrella Helm supplies global itself — so dns_base_test.yaml would not catch its removal; that is precisely the property #4102 established a convention for pinning. And with global.clusterDomain always set inside the bundle, manager.dnsBase | default never fires, so the upstream knob is dead in a Cozystack install; blanking dnsBase: "" in the wrapper values would restore per-package override while keeping the platform default. global: {clusterDomain: ""} also is not declared in packages/system/opensearch-operator/values.yaml, which is asymmetric with #4102.

Adjacent, outside this PR

packages/system/cozystack-basics/templates/monitoring-external-services.yaml:35,44,53 hardcodes .svc.cluster.local in externalName, in a chart that already reads _cluster. Same class of defect, worth a separate issue rather than growing this PR.

Rebase and this is good to go from my side.

Verdict

LGTM as of b083d8e9.

You did not do what I asked, and the PR is better for it. My note on the previous revision was to fold the keda: block into global.clusterDomain so the platform had one answer instead of two. You went the other way — dropped global entirely and used the subchart key, the channel the KEDA domain already travels — and the argument in the body holds: global is the one key Helm copies into every subchart, the cozystack-values Secret is valuesFrom on nearly every HelmRelease the operator builds, so a key added there lands in the values of nearly every release on the cluster. The bootbox render failure is not hypothetical; it still reproduces on main, and it is the second chart with that gate that would have been the real cost, not the first. I withdraw the suggestion.

What that leaves is a much smaller change: +84/-0 in three files, no vendored file touched, no patch to keep in step, and no bootbox hardening to carry along. The previous revision needed all three.

Verified rather than read

• The subchart's own Chart.yaml name is opensearch-operator, so the key in the Secret matches what Helm will look for.
• charts/opensearch-operator/templates/opensearch-operator-controller-manager-deployment.yaml:90 reads .Values.manager.dnsBase unmodified, so nothing under charts/ changes and patches/leaderElection.diff is untouched. Confirmed by diffing packages/system/opensearch-operator/patches/, charts/ and packages/system/bootbox/ across the range: all empty.
• The wrapper's values.yaml sets manager.replicaCount and manager.watchNamespace but not dnsBase, so there is nothing for the Secret to fight with.
• packages/core/platform/sources/opensearch-operator.yaml carries no operator.cozystack.io/skip-cozystack-values, so the Secret genuinely reaches this package.
• Rendered it: helm template . --set 'opensearch-operator.manager.dnsBase=cozy.local' produces DNS_BASE: cozy.local in the manager env.
• Suites green here: opensearch-operator 3 suites / 9 tests, core/platform 40 suites / 172 tests.
• Release note still carries the one manual step, the wedged <release>-securityconfig-update Job. That was the thing I most wanted not to disappear in a rewrite.

On the several-ways-to-say-the-domain complaint: it is narrower now, and the shape is better. Two subchart-key injections that behave identically are a pattern; one subchart key plus one reserved-global key would have been two mechanisms. _cluster stays what it always was, the chart-level channel. The two literal hardcodes — packages/system/nats/values.yaml and packages/system/mariadb-operator/values.yaml — are still there and still worth converting, but they are neither this PR's job nor urgent.

Your offer on the migration is the right split. The manual Job deletion is one step in a release note, the migration would delete Jobs in tenant namespaces, and that is a wider grant than a one-key bug fix should carry. If it rides this release, a separate commit is the way.

The red check is not yours, and it is worth fixing

Unit & controller tests is failing on this head with FAIL: packages/system/mariadb-rd/cozyrds/mariadb.yaml resourcesPreset enum missing: c1.small. That value is present in the file, on main and here, and hack/check-rd-presets.sh passes when I run it against this head. The line above the FAIL in the job log is the giveaway: hack/check-rd-presets.sh: line 39: printf: write error: Broken pipe.

The script runs set -euo pipefail, and line 39 is if ! printf '%s\n' "$enums" | grep -Fqx -- "$want"; then. grep -q exits the moment it matches, which can close the pipe before printf finishes writing; printf then fails with EPIPE, pipefail makes the whole pipeline non-zero, the ! reads that as "not found", and a preset that matched first is reported missing. It is a race, which is why it is intermittent and why it shows up under make -j4 in CI rather than on an idle laptop. Forcing the timing makes it deterministic — with a payload large enough that printf is still writing when grep exits, I got 20 false misses out of 20.

The fix is a here-string instead of a pipe: if ! grep -Fqx -- "$want" <<<"$enums"; then. Worth its own small PR, since it is currently red on other people's branches too and reads as a schema drift that is not there.

That check is not a required context (main requires pre-commit and E2E Tests, both green here), so it does not gate this merge. Merging.