Microshift Release:release Versions

---

name: microshift-release:release-versions argument-hint: description: Check if a given MicroShift version is available and where to find it user-invocable: true allowed-tools: Bash, WebFetch

microshift-release:release-versions

Synopsis

/microshift-release:release-versions <version>

Description

The release-versions command checks if a specific MicroShift version is available and provides information about where to find RPMs and bootc images.

This command provides:

• Version availability status (available/not yet available)
• Version type classification (nightly, EC, RC, GA, z-stream)
• RPM package URLs
• Bootc image URLs (for versions 4.18+)
• Brew build status (internal Red Hat, requires VPN)
• Links to browse packages and images

This command is useful for:

• Checking if a new EC/RC version has been published
• Finding the correct URLs for RPM repositories
• Locating bootc image pull specs
• Understanding what version type a given version is
• Finding Brew builds for internal testing (VPN required)

Arguments

• <ARGUMENTS> (version): The MicroShift version to check - Required
  • Formats accepted:
    • Full version: 4.20.0, 4.18.26
    • EC version: 4.21.0-ec.3 or 4.21.0~ec.3
    • RC version: 4.20.0-rc.3 or 4.20.0~rc.3
    • Short version: 4.21 (will check latest available)

Return Value

• Format: Markdown
• Location: Output directly to the conversation
• Content:
  • Version availability status
  • Version type (EC, RC, GA, z-stream)
  • RPM URLs for both architectures (x86_64, aarch64)
  • Bootc image pull specs (if available)
  • Links to package catalogs

Version Types Reference

Type	Version Format	Release Cadence	RPM Source	Image Source
Nightly	X.Y.0~0.nightly_YYYY_MM_DD_HHMMSS	Continuous	Brew	Not available
EC	X.Y.0~ec.N	Every sprint (3 weeks)	Brew, mirror repo	Mirror repo
RC	X.Y.0~rc.N	After branch cutoff until GA	Brew, mirror repo	Mirror repo
GA	X.Y.0	Every 4 months	Brew, rhocp repos	registry.redhat.io
Z-stream	X.Y.Z	On request	Brew, rhocp repos	registry.redhat.io

Implementation Steps

Step 1: Parse Version and Determine Type

Goal: Parse the input version and classify its type.

Actions:

1. Normalize version format (replace ~ with - for URL construction)
2. Extract major.minor version (e.g., 4.20 from 4.20.0-rc.3)
3. Classify version type:
   • Contains nightly -> Nightly build
   • Contains ec -> Engineering Candidate
   • Contains rc -> Release Candidate
   • Format X.Y.0 -> GA release
   • Format X.Y.Z (Z > 0) -> Z-stream release

Example:

Input: 4.21.0-ec.3
Parsed:
- normalized: 4.21.0-ec.3
- major_minor: 4.21
- type: EC
- base_version: 4.21.0

Step 2: Check OpenShift Release Status

Goal: Check if OCP payload is Accepted for this version.

Actions:

1. Web Fetch this and look for the version:

   https://openshift-release.apps.ci.l2s4.p1.openshiftapps.com/
   

2. Check if the payload for the version is Accepted.

Outcome:

• If the payload is Accepted continue with next step.
• If the payload is Not Accepted do not run next steps. MicroShift version won't be created if the OCP is not Accepted.

Note: MicroShift packages become available when the corresponding OCP version is marked as "Accepted".

Step 3: Check RPM Availability

Goal: Determine if RPM packages are available and provide URLs.

Actions:

For EC versions:

1. Check mirror.openshift.com, EC packages are under ocp-dev-preview/, see:

   https://mirror.openshift.com/pub/openshift-v4/x86_64/microshift/ocp-dev-preview/<version>/el9/os/Packages/
   https://mirror.openshift.com/pub/openshift-v4/aarch64/microshift/ocp-dev-preview/<version>/el9/os/Packages/
   

2. Use WebFetch to verify the directory exists and list packages

For RC versions:

1. Check mirror.openshift.com, RC packages are under ocp/, see:

   https://mirror.openshift.com/pub/openshift-v4/x86_64/microshift/ocp/<version>/el9/os/Packages/
   https://mirror.openshift.com/pub/openshift-v4/aarch64/microshift/ocp/<version>/el9/os/Packages/
   

2. Use WebFetch to verify the directory exists and list packages

For GA/Z-stream versions:

1. Check on brew:

   https://brewweb.engineering.redhat.com/brew/packageinfo?packageID=82827
   

   Use this command to check for microshift releases:

   curl -sk "https://brewweb.engineering.redhat.com/brew/search?match=glob&type=build&terms={version}" 2>/dev/null
   

Step 4: Check Bootc Image Availability

Goal: Find bootc image pull specs for versions 4.18+.

Actions:

For EC versions:

1. Fetch bootc-pullspec.txt:

   https://mirror.openshift.com/pub/openshift-v4/x86_64/microshift/ocp-dev-preview/<version>/el9/bootc-pullspec.txt
   https://mirror.openshift.com/pub/openshift-v4/aarch64/microshift/ocp-dev-preview/<version>/el9/bootc-pullspec.txt
   

2. Extract the quay.io pull spec from the file

For RC versions:

1. Fetch bootc-pullspec.txt:

   https://mirror.openshift.com/pub/openshift-v4/x86_64/microshift/ocp/<version>/el9/bootc-pullspec.txt
   https://mirror.openshift.com/pub/openshift-v4/aarch64/microshift/ocp/<version>/el9/bootc-pullspec.txt
   

For GA/Z-stream versions:

1. For pre-GA z-stream, check registry.stage.redhat.io:
   • Production: https://catalog.redhat.com/en/software/containers/openshift4/microshift-bootc-rhel9/

     • Use this command to check the catalog:

       curl -sk "https://catalog.redhat.com/api/containers/v1/repositories/registry/registry.access.redhat.com/repository/openshift4/microshift-bootc-rhel9/images?page_size=500&page=0" 2>/dev/null
       

       • if not found try few more pages
   • Stage: https://catalog.stage.redhat.com/en/software/containers/openshift4/microshift-bootc-rhel9/

     • Use this command to check the catalog:

       curl -sk "https://catalog.stage.redhat.com/api/containers/v1/repositories/registry/registry.access.redhat.com/repository/openshift4/microshift-bootc-rhel9/images?page_size=500&page=0" 2>/dev/null
       

       • if not found try few more pages

Step 5: List Available Versions (if short version provided)

Goal: If user provides a short version like 4.21, list all available sub-versions.

Actions:

1. Fetch directory listing from mirror.openshift.com:

   https://mirror.openshift.com/pub/openshift-v4/x86_64/microshift/ocp-dev-preview/
   https://mirror.openshift.com/pub/openshift-v4/x86_64/microshift/ocp/
   

2. Filter for versions matching the major.minor pattern

3. List all available versions with their types

Step 6: Generate Report

Goal: Create a comprehensive availability report.

Report Structure:

# MicroShift Version Availability: <version>

## Status
- **Version**: <full-version>
- **Type**: EC / RC / GA / Z-stream
- **Status**: Available / Not Yet Available
- **OCP Release Status**: Accepted / Pending

## Brew Builds (VPN Required)
- **Web**: https://brewweb.engineering.redhat.com/brew/packageinfo?packageID=82827
- **Build**: <brew-build-nvr> (if found)
- **Status**: Available / Not Found / VPN Required

## RPM Packages

### x86_64
- **URL**: <mirror-url>
- **Status**: Available / Not Found

### aarch64
- **URL**: <mirror-url>
- **Status**: Available / Not Found

## Bootc Images (4.18+)

### x86_64
- **Pull Spec**: <quay.io/...@sha256:...>

### aarch64
- **Pull Spec**: <quay.io/...@sha256:...>

## Catalog Links
- [Red Hat Catalog](<catalog-url>) (GA/Z-stream only)
- [Stage Catalog](<stage-catalog-url>) (pre-GA Z-stream only)

## Notes
- <any relevant notes about availability>

Examples

Example 1: Check EC Version

/microshift-release:release-versions 4.21.0-ec.3

Example 2: Check RC Version

/microshift-release:release-versions 4.21.0-rc.1

Example 3: Check GA/Z-stream Version

/microshift-release:release-versions 4.18.26

Example 4: List Available Versions for a Release

/microshift-release:release-versions 4.21

Reference Information

Brew (Internal Red Hat)

Brew is Red Hat's internal build system. VPN is required to access it, assume VPN is enabled.

Web Interface:

• Browse all MicroShift packages: https://brewweb.engineering.redhat.com/brew/packageinfo?packageID=82827

Build NVR Format:

• GA/Z-stream: microshift-4.18.26-<release>.el9
• EC: microshift-4.21.0-0.ec.3.<release>.el9
• RC: microshift-4.21.0-0.rc.1.<release>.el9
• Nightly: microshift-4.21.0-0.nightly_YYYY_MM_DD_HHMMSS.<release>.el9

URL Patterns

Mirror repos (EC/RC):

• EC RPMs: https://mirror.openshift.com/pub/openshift-v4/{ARCH}/microshift/ocp-dev-preview/{VERSION}/el9/os/Packages/
• RC RPMs: https://mirror.openshift.com/pub/openshift-v4/{ARCH}/microshift/ocp/{VERSION}/el9/os/Packages/
• EC Bootc: https://mirror.openshift.com/pub/openshift-v4/{ARCH}/microshift/ocp-dev-preview/{VERSION}/el9/bootc-pullspec.txt
• RC Bootc: https://mirror.openshift.com/pub/openshift-v4/{ARCH}/microshift/ocp/{VERSION}/el9/bootc-pullspec.txt

Registry repos (GA/Z-stream):

• Production: registry.redhat.io/openshift4/microshift-bootc-rhel9
• Stage: registry.stage.redhat.io/openshift4/microshift-bootc-rhel9

Catalogs:

• Production: https://catalog.redhat.com/en/software/containers/openshift4/microshift-bootc-rhel9/
• Stage: https://catalog.stage.redhat.com/en/software/containers/openshift4/microshift-bootc-rhel9/

Release Timing

• EC versions: Usually created from a commit on the last Wednesday of every sprint; available on the first Wednesday of the next sprint
• RC versions: Created after branch cutoff until GA; several may be created
• GA versions: Released every 4 months
• Z-stream versions: Created on request from MicroShift team to ART team

CI Testing

Release versions are tested in CI:

• Scenarios: test/scenarios/releases/ and test/scenarios-bootc/releases/
• Latest release version must be manually updated in test/bin/common_versions.sh when new RC or z-stream is available

Notes

• Assume VPN access is enabled by default when looking for Brew resources
• Bootc images are only available for MicroShift 4.18 and later
• MicroShift packages become available when the OCP version is marked as "Accepted"
• For nightly builds, only RPMs are available in Brew (VPN required)
• The command is read-only and does not modify any data
• Use this command to verify availability before updating CI configurations or deployment scripts