Today I learned that you can’t bind-mount folders on your host machine into a Docker container during build.
For local development, I bind-mount with docker-compose.
version: '2.4' services: url-shortener: build: context: ./services/url-shortener dockerfile: Dockerfile volumes: - './services/url-shortener:/usr/src/app:delegated' ports: - 5001:5000
My goal was to use the language’s package manager to install the required dependencies.
Here’s the Dockerfile:
## base image FROM nimlang/nim:1.0.4-regular AS build-image ## set working directory WORKDIR /usr/src/app ## install dependencies RUN nimble refresh && nimble install -y ## run server CMD nimble c -r src/urlShortener