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ClojureScript and Node.js Docker Image

See: https://clojurescript.org/

Tags

  • theasp/clojurescript-nodejs:latest is built from node:latest with OpenJDK 11 and Leiningen.
  • theasp/clojurescript-nodejs:onbuild has the additional ONBUILD triggers implemented the same way as clojure:onbuild.
  • theasp/clojurescript-nodejs:alpine is built from node:alpine with OpenJDK 11 and Leiningen, and is only 220 MiB.
  • theasp/clojurescript-nodejs:shadow-cljs is built from node:latest with OpenJDK 11 and Shadow CLJS.
  • theasp/clojurescript-nodejs:shadow-cljs-alpine is built from node:alpine with OpenJDK 11 and Shadow CLJS.

Example Dockerfile

FROM theasp/clojurescript-nodejs:latest
WORKDIR /usr/src/app
ARG http_proxy
COPY project.clj /usr/src/app/project.clj
RUN lein do deps, npm install
COPY ./ /usr/src/app-tmp/
RUN set -ex; \
  rm -rf /usr/src/app-tmp/node_modules /usr/src/app-tmp/target; \
  mv /usr/src/app-tmp/* /usr/src/app/
RUN lein with-profile prod cljsbuild once
CMD ["./run-server.sh"]

Example Multi-stage Dockerfile Using Alpine

This results in an image that is roughly 100 MiB.

FROM theasp/clojurescript-nodejs:alpine as build
WORKDIR /usr/src/app
COPY project.clj ./project.clj
RUN apk --no-cache add python alpine-sdk postgresql-dev && lein do deps, npm install
COPY ./ /usr/src/app/
RUN lein with-profile prod cljsbuild once

FROM node:alpine
WORKDIR /usr/src/app
ENV DB_NAME="app" DB_HOST="postgres" DB_USER="app" DB_PASSWORD="app" WEB_DOMAIN="app.example.com"
EXPOSE 80
CMD ["./run-server.sh"]
RUN apk --no-cache add libpq bash
COPY --from=build /usr/src/app/ /usr/src/app/

Example Multi-stage Dockerfile Using Shadow CLJS

FROM theasp/clojurescript-nodejs:shadow-cljs-alpine as build
WORKDIR /app
RUN apk --no-cache add python alpine-sdk postgresql-dev
COPY package.json package-lock.json shadow-cljs.edn /app/
RUN shadow-cljs npm-deps && npm install --save-dev shadow-cljs
COPY ./ /app/
RUN shadow-cljs release client server

FROM node:alpine
WORKDIR /app
ENV DB_NAME="app" DB_HOST="postgres" DB_USER="app" DB_PASSWORD="app" WEB_FQDN="app.example.com" HTTP_PORT="80"
EXPOSE 80
CMD ["./run-server.sh"]
RUN apk --no-cache add libpq bash
COPY --from=build /app/ /app/