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Skillsrhdh-base-images

rhdh-base-images

Deployment & operations

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Updated 10-16 02:14

About this skill

RHDH base images

Use the bundled scripts instead of reconstructing their repository-specific logic.

Repository checkouts are explicit inputs the user names. This skill never discovers another skill's paths.

Route

Intent Load or run
Read-only current/latest image scan workflows/update-base-images.md, then scripts/base-images-and-rpms.sh --analyze ...
Explain repository rules references/repos.md
Preview an update workflows/update-base-images.md, then scripts/base-images-and-rpms.sh --dry-run ...
Update images, lockfiles, Node headers, catalog builder, overlays node, or Go toolchain workflows/update-base-images.md

A scan reports, per repository: every FROM image with its current and latest tag, UBI minor skew within a file, Node or Go toolchain drift, the registries and branches it read, and anything it could not read.

Writing rules

Any checkout, branch, file edit, dependency install, commit, push, or PR is a write. Run read-only discovery or --dry-run first, then follow /mutation-gate: state each operation with its target repository and branch (rhdh:release-1.10), the exact command, the change it will land, and what happens to the remaining operations if it fails; get approval for that stated set; execute; then report every operation as completed, failed, or skipped, with the resources it changed and the risks that remain.

Installing rpm-lockfile-prototype, logging into registries, using --push, and opening PRs are each their own operation. Default to local, no-push behavior; do not push directly to protected branches. Verify the branch exists and the working tree is clean before writing.

When the user asks to push and open a PR/MR after approval, invoke /rhdh-pr-mr by name (or its create-pr-mr.sh) instead of hand-rolling gh pr create / glab mr create. Pass --issue when a Jira key is already known; omit it to skip linking. Midstream updateBaseImages.sh still uses distgit createPR.sh until that path is migrated.

Repository invariants

  • Accepted branch selectors are main or release-*; map them to the documented GitLab scripts branch in references/repos.md.
  • Keep base-image UBI minors aligned with RPM repository URLs.
  • Before regenerating rpms.lock.yaml, bump OpenShift clients N-el9-beta baseurl values and matching rhocp-N-for-rhel-9-$basearch-rpms repoids in rpms.in.yaml to the latest released 4.y stream that still exists on mirror.openshift.com (for example 4.21-el9-beta → 4.22-el9-beta). Released 4.y names come from the product life cycle API linked from https://access.redhat.com/support/policy/updates/openshift#dates. Do not move to an unreleased directory such as 4.23-el9-beta or 5.1-el9-beta. If the life cycle fetch fails, or no released 4.y directory is on the mirror, leave rpms.in.yaml unchanged. Skip when the file has no such repo.
  • When a plugin-catalog checkout is in the run, rewrite build/containerfiles/builder.Containerfile /rhocp/4.N/ path segments to that same latest released 4.y (for example /rhocp/4.21/ → /rhocp/4.22/). Leave ocp-tools URLs unchanged. Do not rewrite when the life cycle fetch fails.
  • When that Containerfile changes in the same run, increment its release="N" label and the matching X.Y-N token in konflux.additional-tags once (release="3" and 2.2-3 become release="4" and 2.2-4). Leave version=, rhdh.version=, and node-v* to the node-header rewrite. Set BASE_IMAGES on every .tekton/plugin-catalog-builder*.yaml build-source-image task to the Containerfile FROM image, inserting the param when it is missing. Do not bump release when the Containerfile is unchanged.
  • When the RPM Containerfile uses dnf/microdnf install --installroot (operator empty rootfs), regenerate the lockfile with rpm-lockfile-prototype --bare so the full closure (glibc, coreutils, bash) is locked. Do not pass -f; that loads the UBI rpmdb and omits those packages. Layered installs onto the base image still use -f. If the solve fails (nothing provides, conflicting requests), restore rpms.lock.yaml / rpms.in.yaml and do not push.
  • On RHDH, update Node headers when the builder image changes Node. Then, when those checkouts are in scope, pin plugin-catalog build/containerfiles/builder.Containerfile FROM to the same UBI Node tag@sha256. Catalog headers follow the Node version that Containerfile will run: image node --version, or the newer nodejs RPM from dnf repoquery when the file dnf-installs nodejs before the headers RUN. Do not copy an older rhdh .nvm/ over that version. Rewrite konflux.additional-tags node-v* to match the catalog .nvmrc, and set overlays versions.json node to the rhdh .nvmrc value. Catalog maps release-1.Y → GitLab rhdh-1.Y-rhel-9 and release-2.Y → GitLab release-2.Y (using UBI10 / RHEL10). Catalog has no rpms.lock.yaml. Do not [skip-build] the catalog builder commit.
  • On rhdh-operator main, raise go.mod to the Go toolset image when the image is newer. Never lower go or toolchain to match an older image; a newer pin (for example from Renovate) is valid.
  • Exclude RHDH e2e-tests/ and .ci/ from image scans.
  • Ignore rpm-lockfile-prototype lines matching No sources found for or "no matching sources". Those source RPMs are often unpublished; the binary lockfile is still valid. Do not report them as unread, failed, or remaining risks.

Another skill invokes /rhdh-base-images by name and uses what it reports; it never reaches for these script paths. /rhdh-konflux-tasks does this during a stream Konflux bump so Node headers match the builder image; it passes named checkouts and a main or release-* selector.

Completion

An analysis is complete when every repository in scope is named with its current and latest tag, UBI skew and toolchain drift are stated or stated as none, and every registry, lockfile, or branch the scan could not read is named as unread instead of reported as current. Filtered No sources found for / "no matching sources" lines are not unread and are omitted from the report.

An update is complete when the target branch was verified to exist against a clean working tree before any edit, every approved operation has been reported by target and outcome, and the push and PR state is stated explicitly — including "not pushed" when the default local behavior was kept. When Node headers / .nvmrc changed, name the plugin-catalog FROM old→new, confirm grep konflux.additional-tags build/containerfiles/builder.Containerfile contains node-v matching .nvmrc, and name the overlays versions.json node value (or that those checkouts were not in scope). When the catalog builder Containerfile changed, name the release old→new and confirm builder PipelineRun BASE_IMAGES matches that file's FROM (or that the Containerfile did not change).