macOS: Docker volumes and Minikube

This morning I decided to replace Docker Desktop on my mac with the Hyperkit + Minikube combo like explained in Run Docker without Docker Desktop on macOS.

Volumes

However, some file mounted through a volume in docker-compose invariably resulted in a directory being created in the container instead of a file.
docker-compose.yaml

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version: "3.8" services:   postgres:     container_name: oss-postgres     image: postgres:14-alpine     stdin_open: true     tty: true     restart: always     ports:       - 5432:5432     volumes:       - ./postgres/postgres.sh:/docker-entrypoint-initdb.d/postgres.sh     environment:       POSTGRES_PASSWORD: "xxx"

logs

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oss-postgres  | /usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/postgres.sh oss-postgres  | /usr/local/bin/docker-entrypoint.sh: line 169: /docker-entrypoint-initdb.d/postgres.sh: Is a directory oss-postgres exited with code 126

It appears that the volumes need being created in the Minikube VM beforehand (source: Replace Docker Desktop with Minikube and Hyperkit on macOS), like in:

1 2	> minikube stop > minikube start --mount --mount-string="/Users/jerome/src/boss/:/Users/jerome/src/boss/" --memory 4096 --cpus 4

Ports

Any service previously reachable through localhost by port forwarding is now available by using docker.dev, mapped to minikube ip in /etc/hosts. 

NOTE

Never use .local domain on macOS, or DNS resolving will become awfully slow: use for ex. docker.dev instead of docker.local for the hostname of the minikube ip, contrary to what the 1st article proposes.