How to build a Dockerfile and open a shell in it

file.sh

# "foo" is not a placeholder, it's a name that needs to be given
# this exact command will work if a Dockerfile is present
docker build -t foo . && docker run -it foo

# if you want to force creation of an amd64 image when on an M1/arm64 Mac
docker build --platform linux/amd64 -t foo . && docker run -it foo

# if your container doesn't have a shell as an entrypoint
# e.g. node:@latest
docker build --platform linux/amd64 -t foo . && docker run -it --entrypoint bash foo