Radar: fix the Helm install steps and list container images per release

[EliShteinman]

Following the Helm steps on the Radar install page as written fails. I checked each Helm claim against the published charts 2026.9.2 and 2026.9.5 from https://helm.redis.io/radar, using helm template in both database modes, and against Docker Hub.

What was wrong

Where	Problem
Both helm install commands	Render fails: database.host is required when postgresql.enabled is false. The chart's wait-for-db init containers probe that host.
Step 1	Creates secrets in the radar namespace, which only existed after helm install --create-namespace.
--set ingress.hosts[0]...	Unquoted brackets are a glob in zsh, the macOS default shell: zsh: no matches found.
Package and service names	Says the Helm chart's images are radar-app, radar-worker, and radar-migrate. The chart pulls redislabs/radar:{app,worker,migrate}-v<version>, the only Radar repository on Docker Hub. redislabs/radar-app and the others don't exist.
Private or air-gapped registry	global.imageRegistry does not reach the Radar images: image.registry defaults to docker.io and takes precedence. It also does not reach busybox, which has no registry key. With the documented values, every Radar image still comes from Docker Hub. Chart issue: RedisLabs/redis-enterprise-helm#101.
Verify step	Promises "a completed migration job". With an external database the job is a Helm hook with hook-succeeded deletion, so a successful install leaves no job to list.
Air-gapped host, Helm row	docker load onto the nodes doesn't apply to Kubernetes or OpenShift nodes, which run containerd or CRI-O. The images.tar.gz bundle it relies on is not published in the Download Center, on Docker Hub, or in the Helm repository.
Source checkout path	./helm/radar refers to a repository customers can't access.
Release notes index	Still said "and the Helm chart" with no source.

What changed

• Release notes 2026.9.2 and 2026.9.5. Each gets a ## Downloads section, following the Kubernetes release notes convention, with the chart version and every container image that release's chart renders. That includes busybox and the optional bundled PostgreSQL. The images are linux/amd64 only, and the section says so. Each version's page now lists exactly what to mirror for that version.
• Install page, Helm.
  • Adds a step that creates the namespace first.
  • Adds database.host to both install commands.
  • Quotes the bracketed --set values.
  • Pins --version <version> in the commands and points to the per-release Downloads lists.
  • Replaces the registry override with values that work: image.registry, and a registry-qualified dbWaitInitContainer.image.repository.
  • Corrects the migration-job expectation in the verify step.
  • Explains how to let helm test pull busybox from an authenticated mirror. The chart's test pod gets no global.imagePullSecrets and runs as the default service account.
• Install page, air-gapped Helm. Replaces the Helm table row and adds a short procedure that uses public artifacts: helm pull the chart package, copy the listed images into a registry with skopeo copy --all, then install from the package. --all matters for multi-platform busybox when copying from an arm64 workstation.

Verification

• The documented commands, plus the new registry values file, render with every image coming from the mirror. Checked for charts 2026.9.2 and 2026.9.5, with both an external and a bundled database.
• tar -xzf radar-<version>.tgz radar/values-openshift.yaml produces the path the OpenShift command expects.
• A Hugo build reports no warnings for content/operate/radar and no broken references.

Left unchanged, needs product input

• The Docker Compose section, the images.tar.gz bundle, and radar-v<version>.SHA256SUMS. I couldn't find these published anywhere, so I couldn't verify them. The Compose image names are left as documented. The sha256sum -c step now applies only when the transferred artifacts include that file, since a chart fetched with helm pull has none.
• Bundled PostgreSQL install values. These are postgresql.enabled, auth.password, auth.postgresPassword, and --wait --wait-for-jobs. They aren't documented on this page.
• OpenShift Route TLS options. These are custom certificate and HTTP redirect, and the chart's schema rejects externalCertificate. See radar: values-openshift.yaml does not cover an air-gapped install (images to mirror, Route TLS) RedisLabs/redis-enterprise-helm#102.

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[Copilot]

🟡 Changes recommended

The authenticated-mirror helm test path and checksum guidance still need correction.

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Pull request overview

Updates Radar Helm installation documentation and release notes to match published charts, images, and air-gapped workflows.

Changes:

• Fixes namespace, database host, version pinning, quoting, and migration verification guidance.
• Adds per-release chart and container image inventories.
• Replaces inaccurate air-gapped Helm instructions with chart mirroring steps.

File summaries

File	Summary
content/operate/radar/install.md	Corrects Helm and air-gapped installation procedures.
content/operate/radar/release-notes/2026-9-2.md	Adds release-specific download information.
content/operate/radar/release-notes/2026-9-5.md	Adds release-specific download information.
content/operate/radar/release-notes/_index.md	Links the Helm repository and release downloads.

Review details

• Files reviewed: 4/4 changed files
• Comments generated: 2
• Review effort level: Lite

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