A very basic Dockerfile for Racket projects

Dockerfile

FROM racket/racket:8.1-full AS build

WORKDIR /src/my-project
RUN raco pkg config --set catalogs \
    https://download.racket-lang.org/releases/8.1/catalog/ \
    https://racksnaps.defn.io/snapshots/2021/05/27/catalog/
RUN raco pkg install --auto --batch $ALL_THE_PACKAGES_I_NEED
COPY . /src/my-project
RUN raco test -x .
RUN raco exe --vv ++lib $DYNAMIC_REQUIRE_LIBS -o my-project main.rkt
RUN raco distribute /my-project my-project

FROM ubuntu:20.04
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=Etc/UTC
RUN apt update && apt install -y dumb-init ca-certificates openssl tzdata && apt clean && rm -rf /var/lib/apt/lists/*
COPY --from=build /ct-truck /ct-truck
CMD ["dumb-init", "-v", "-r", "15:2", "/my-project/bin/my-project"]

If you are specifying dependencies in your info.rkt:

#lang info

(define deps '("markdown" "tzinfo"))

You can use this line to automatically populate the $ALL_THE_PACKAGES_I_NEED variable:

RUN raco pkg install --auto --batch \
    $(racket -e "(require setup/getinfo) (for-each (lambda (s) (display s) (display \" \")) ((get-info/full \".\") 'deps))")

If you are specifying dependencies in your info.rkt:

That's one of the shortcomings of the project this was taken from, no info.rkt file yet.