feat(ubuntu): add Ubuntu 26.04 LTS (Resolute Raccoon) support#512
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feat(ubuntu): add Ubuntu 26.04 LTS (Resolute Raccoon) support#512
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- Fix hardcoded dist in ubuntu provider's loadRepoConfig() to accept dist as a parameter, matching azl/emt/rcd provider patterns - Create config/osv/ubuntu/ubuntu26/ directory tree with config.yml, chrootenv configs, provider repo configs (plucky codename), default image configs, and additional files - Add ubuntu26 to dist enum in os-config.schema.json - Add ubuntu OS->dist constraint (ubuntu24, ubuntu26) in os-image-template.schema.json - Add ubuntu entries to GetProviderName() and GetDistroVersion() maps in config.go - Add ubuntu26-x86_64-minimal-raw.yml example image template - Add ubuntu26 test cases for provider init, name, and repo config - Add ubuntu24/ubuntu26 to TestAllSupportedProviders config test - Update README.md, release-notes.md, and templates documentation
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Pull request overview
Adds a new Ubuntu distro variant (ubuntu26) across config, schema, docs, and the Ubuntu provider so os-image-composer can target an additional Ubuntu release.
Changes:
- Updates Ubuntu provider repo loading to use the
distparameter (instead of a hardcodedubuntu24) and adds ubuntu26 provider tests. - Introduces
config/osv/ubuntu/ubuntu26/defaults (repo configs, chroot env configs, default image configs, additional files) plus an exampleubuntu26template. - Extends schemas/docs and config mappings to recognize
ubuntu26.
Reviewed changes
Copilot reviewed 25 out of 25 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
| README.md | Advertises ubuntu26 as a supported OS/dist combination. |
| internal/provider/ubuntu/ubuntu.go | Passes dist through to centralized repo config loading. |
| internal/provider/ubuntu/ubuntu_test.go | Adds/updates tests to cover ubuntu26 init/name/repo loading. |
| internal/config/schema/os-image-template.schema.json | Constrains ubuntu target to ubuntu24/ubuntu26. |
| internal/config/schema/os-config.schema.json | Adds ubuntu26 to the dist enum. |
| internal/config/config.go | Adds ubuntu24/ubuntu26 entries to provider/version maps. |
| internal/config/config_test.go | Extends supported-provider test cases for ubuntu24/ubuntu26. |
| image-templates/ubuntu26-x86_64-minimal-raw.yml | Adds an example user template targeting ubuntu26. |
| docs/release-notes.md | Mentions Ubuntu 26.04 support (currently placed under Known Issues/Opens). |
| docs/architecture/os-image-composer-templates.md | Documents ubuntu dist values as ubuntu24/ubuntu26. |
| config/osv/ubuntu/ubuntu26/providerconfigs/repo.yml | Adds base repo definition for ubuntu26. |
| config/osv/ubuntu/ubuntu26/providerconfigs/amd64_repo.yml | Adds amd64 multi-repo configuration for ubuntu26. |
| config/osv/ubuntu/ubuntu26/providerconfigs/arm64_repo.yml | Adds arm64 multi-repo configuration for ubuntu26. |
| config/osv/ubuntu/ubuntu26/imageconfigs/defaultconfigs/default-raw-x86_64.yml | Adds ubuntu26 x86_64 raw defaults. |
| config/osv/ubuntu/ubuntu26/imageconfigs/defaultconfigs/default-raw-aarch64.yml | Adds ubuntu26 aarch64 raw defaults. |
| config/osv/ubuntu/ubuntu26/imageconfigs/defaultconfigs/default-iso-x86_64.yml | Adds ubuntu26 x86_64 ISO defaults. |
| config/osv/ubuntu/ubuntu26/imageconfigs/defaultconfigs/default-initrd-x86_64.yml | Adds ubuntu26 x86_64 initrd defaults. |
| config/osv/ubuntu/ubuntu26/imageconfigs/additionalfiles/ubuntu-plucky.list | Adds apt sources list used by defaults. |
| config/osv/ubuntu/ubuntu26/imageconfigs/additionalfiles/serial-getty@.service | Adds service override for serial getty in initrd/ISO flows. |
| config/osv/ubuntu/ubuntu26/imageconfigs/additionalfiles/getty@.service | Adds service override for getty in initrd/ISO flows. |
| config/osv/ubuntu/ubuntu26/imageconfigs/additionalfiles/dhcp.network | Adds systemd-networkd DHCP config. |
| config/osv/ubuntu/ubuntu26/config.yml | Adds OSV config entries for ubuntu26 (x86_64/aarch64). |
| config/osv/ubuntu/ubuntu26/chrootenvconfigs/local.list | Adds local apt repo list (cache repo) for chroot env. |
| config/osv/ubuntu/ubuntu26/chrootenvconfigs/chrootenv_x86_64.yml | Adds essential/chroot packages for ubuntu26 x86_64. |
| config/osv/ubuntu/ubuntu26/chrootenvconfigs/chrootenv_aarch64.yml | Adds essential/chroot packages for ubuntu26 aarch64. |
Replace plucky (25.04) codename references with resolute (26.04 LTS) across all ubuntu26 config files: - Update repo configs (repo.yml, amd64_repo.yml, arm64_repo.yml) - Rename ubuntu-plucky.list to ubuntu-resolute.list - Update all default image configs referencing the sources list - Fix release-notes.md codename (Resolute Rattlesnake, not Plucky Puffin) Addresses Copilot review comments on PR #512.
arodage
changed the title
arodage
changed the title
kblaszczak-intel
approved these changes
Apr 15, 2026
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Merge Checklist
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Description
Add Ubuntu 26.04 (Plucky Puffin) support to os-image-composer, enabling image builds for the upcoming Ubuntu release.
Changes:
"ubuntu24"dist in ubuntu provider'sloadRepoConfig()to accept dist as a parameter, matching azl/emt/rcd provider patternsconfig/osv/ubuntu/ubuntu26/directory tree with config.yml, chrootenv configs, provider repo configs (plucky codename), default image configs, and additional filesubuntu26to dist enum inos-config.schema.jsonubuntu24,ubuntu26) inos-image-template.schema.jsonGetProviderName()andGetDistroVersion()maps inconfig.goubuntu26-x86_64-minimal-raw.ymlexample image templateTestAllSupportedProvidersconfig testAny Newly Introduced Dependencies
None.
How Has This Been Tested?
go test ./...— all pass including new ubuntu26 test casesgo build ./...andgo vet ./...— cleanubuntu26-x86_64-minimal-raw.ymltemplate (produced .raw.gz, .vhdx, and SPDX SBOM)