Share your devcontainer.json for a Python + Postgres setup

Here is the config we use for every Python service. It starts Postgres as a sidecar and runs migrations on create.

{
  "name": "py-service",
  "dockerComposeFile": "compose.yml",
  "service": "app",
  "postCreateCommand": "pip install -e .[dev] && alembic upgrade head",
  "forwardPorts": [8000, 5432],
  "customizations": { "editor": { "extensions": ["lattice.python", "lattice.sql"] } }
}

What does yours look like?

We do almost the same, but with uv sync instead of pip — create time dropped from 3 min to 50s.

Saving this. Is the compose file just postgres + app?

Yes, two services and a named volume for the data.