lisp-docker's Introduction

lisp-docker

Minimal Common Lisp (SBCL, ECL) Docker images

Base Image

Debian 11 (bullseye) Slim

The base image is used to build Common Lisp from source.

Deployment Image

Distroless Debian 11

Uses base image to build standalone application, then copies the executable to distroless nonroot deployment image.

SBCL

FROM ogimart/sbcl-dev:latest AS build

WORKDIR /build-app
COPY . .
RUN make clean && make sbcl-app

FROM gcr.io/distroless/base-debian11:nonroot
COPY --from=build /build-app/app /usr/bin/
CMD ["app"]

ECL

FROM ogimart/ecl-dev:latest AS build

WORKDIR /build-app
COPY . .
RUN make clean && make ecl-app

FROM gcr.io/distroless/base-debian11:nonroot
COPY --from=build /usr/local/lib/libecl.so.21.2.1 /usr/lib/libecl.so.21.2
COPY --from=build /build-app/app /usr/bin/
CMD ["app"]

Size

Hello World App image size (without lisp image compression):

SBCL 58.7 MB
ECL 33.6 MB

The size of distroless/base-debian11 without app and libs is 17.5MB.

Hello World application with no dependencies:

(defpackage :app
  (:use :cl)
  (:export :main))
(in-package :app)

(defun main ()
  (format t "Hello Lisp!~%"))

ASDF System:

(asdf:defsystem #:app
  :serial t
  :components ((:file "app")))

Build script:

(require 'asdf)
(push "./" asdf:*central-registry*)
(asdf:load-system :app)

#+sbcl (sb-ext:save-lisp-and-die #P"app"
                                 :toplevel #'app:main
                                 :executable t)

#+ecl (asdf:make-build :app
                       :type :program
                       :move-here #P"./"
                       :epilogue-code '(app:main))
#+ecl (si:exit)