providers: translate rockcraft base to provider base
Metadata
Current evaluation
Merged. Centralized base translation from LXD and Multipass modules into craft-providers. Added a configurable supported bases list to decouple application definitions from provider image mapping. Approved by mr-cal.
Suggested action: —
No scores available.
Issue body
- [X] Have you signed the [CLA](http://www.ubuntu.com/legal/contributors/)?
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### Overview
*craft applications have a concept of a "base". This base is translated a `craft-providers` base and is passed to `craft-providers` so it can choose which base image (OS and release) to use for the instance.
### Problem
Currently, each application translates its own base inside `_lxd.py` and `_multipass.py`. This application-specific code needs to be removed from these files.
### Solution
To support this, I created a list of what bases `craft-providers` can accept. Right now, `18.04`, `20.04`, and `22.04` are supported. Other OSs and releases can be added in the future without breaking backwards compatibility.
The image below shows how an application can translates its base to a `craft-providers` base. It also shows `craft-providers` translating it to the specific name needed for LXD and Multipass to download the base image.
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CRAFT-1382
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| qwen/qwen3.6-35b-a3b | — | — | Merged. Centralized base translation from LXD and Multipass modules into craft-providers. Added a configurable supported bases list to decouple application definitions from provider image mapping. Approved by mr-cal. | |
| qwen3.6-35b-a3b-mtp-q6 | — | — | Merged refactoring that centralizes base translation logic from application-specific LXD and Multipass files into craft-providers. Added explicit support for Ubuntu 18.04, 20.04, and 22.04 bases, enabling future extensibility without breaking compatibility. | |
| qwen3.6-35b-a3b-mtp-q6 | — | — | Merged. Centralized base translation logic in craft-providers, removing application-specific code from _lxd.py and _multipass.py. Supports Ubuntu 18.04, 20.04, and 22.04 bases, resolving CRAFT-1382. |
Update history
No update history recorded yet.
Related issues
| Issue | Project | State | Summary | Similarity |
|---|---|---|---|---|
| #484 providers: refactor to better support multiple providers (CRAFT-362) | charmcraft | merged | Merged following two approvals and passing CI. Refactored the providers module into a package introducing a common Provider interface and LXDProvider subclass to accommodate future providers like Multipass. No behavioral changes. Minor naming adjustments applied during review. | |
| #9 providers: add build provider support (CRAFT-28) | rockcraft | merged | Merged integration of rockcraft with craft-providers to run build providers on LXD instances. The change ports Charmcraft glue code, hardwires execution to LXD, and defers user messages and log retrieval to follow-up PRs. Approved and passed CI. | |
| #110 providers: move lxd project name out of craft-providers interface | rockcraft | merged | Merged refactoring that moves rockcraft's project name from lxd.py to providers.py in the craft-providers interface. Approved by one reviewer, passed CI, and successfully integrated. |