`environment:` was present with nothing but comments beneath it, so YAML
parsed it as null and Compose refused the whole file:
services.mcp.environment must be a mapping
That is every documented Compose command — `docker compose build`,
`docker compose run --rm mcp`, `docker compose down` — failing before
anything starts, on any machine. The README points at this file.
Comment the key out along with its example entries, and say in the file
why it cannot be left bare. The examples switch to mapping syntax so
uncommenting them yields a valid block.
Verified with `docker compose config` on the shipped file (now valid)
and by running the documented flow against a build of this tree: mine a
mounted directory through `docker compose run --rm mcp cli mine`, then
read it back with `... cli search`, which returns the drawer verbatim.
`deploy/docker-compose.server.yml` was checked for the same defect and
is unaffected.
Review fixes for the Docker packaging PR:
- docker-publish: tie the `latest` tag to pushes on `main` (the release
branch). Previously it was gated on `is_default_branch`, but the
default branch is `develop` and the workflow never ran there, so
`latest` was never produced. main + `v*` tags publish; develop is
validated via the pull_request trigger but does not publish.
- docker-publish: publish multi-arch amd64+arm64 (Apple Silicon / ARM)
on real pushes via setup-qemu-action; PRs stay amd64-only for speed.
- docker-publish: only export the GHA cache on in-repo events (fork PRs
get a read-only cache, which just emits 403 noise).
- docker-publish: add a build-only job that validates Dockerfile.gpu
compiles so the CUDA variant can't silently rot.
- Dockerfile: correct the persistence comment — the default `minilm`
model caches under ~/.cache/chroma (ChromaDB S3), not
~/.cache/huggingface (that's the optional embeddinggemma model).
- docker-compose: drop the redundant MEMPALACE_PALACE_PATH override (it
duplicated the HOME=/data default); document overrides as examples.
Add a multi-stage, uv-based Dockerfile producing a CPU image (with the
extract + spellcheck extras), plus a CUDA variant (Dockerfile.gpu) for
onnxruntime-gpu accelerated embeddings.
A single flexible entrypoint dispatches to the MCP stdio server (default)
or the mempalace CLI. All state -- palace, config, and the lazily
downloaded embedding model -- persists under /data via HOME, runs as a
non-root user, and is exposed as a volume.
Also add a docker-compose.yml for convenience, a GHCR publish workflow,
and a Docker section in the README.
Igor Lins e Silva
sebaplaza