| name | shimmy-tool-local-build |
| description | Create, change, test, or troubleshoot a Shimmy concrete version that builds a local Podman image from a tool-owned container context. |
Shimmy Local Image Builds
Layout
A local-build concrete version owns its build context:
tools/<kind>/versions/<major.minor>/
run.sh
smoke.conf
container/Containerfile
run.sh uses core/runtime/image.sh to build or reuse the local image. Keep
image naming, hash labels, and platform selection in the shared helper; do not
copy image-cache logic into a tool runtime.
Rules
- Keep every build argument and image override under the
SHIMMY_ prefix.
- Default to the cached local image; use a documented
SHIMMY_<TOOL>_IMAGE_BUILD=always opt-in for rebuilds.
- Place tool-specific source or base-image overrides in the version runtime
and document them in the guide and tool skill.
- Keep
Containerfile dependencies pinned where reproducibility matters.
- Preserve
$PWD:/work, shared platform resolution, and non-mutating preview
behavior.
Validation
Use preview first:
./commands/run-tool.sh <kind> --preview-shim --help
Use a live build only with explicit user authorization and a running Podman
engine. Exercise it with a non-mutating tool command, then run ./shimmy test
and git diff --check.
