shellbro/devbox-clojure
Non-root container image for Clojure development.
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shellbro/devbox-clojure repository overview
shellbro/devbox-clojure
Non-root container image for Clojure development.
Ad-hoc containerized Clojure REPL
Add the following function to your .bashrc file:
function repl {
docker run --rm -it --detach-keys=ctrl-@\
-v "$HOME/.m2:/home/app-user/.m2"\
--entrypoint=lein\
shellbro/devbox-clojure update-in :dependencies into "[$1]" --\
repl
}
Develop inside a container
From the root directory of your Clojure project start standalone REPL inside a container. If you want to stay attached to your REPL from a terminal window run:
$ docker run --name=app --rm -it --detach-keys=ctrl-@\
-p 127.0.0.1:1337:1337\
-v "$HOME/.m2:/home/app-user/.m2" -v "$PWD:/usr/local/src/app"\
shellbro/devbox-clojure :host 0.0.0.0 :port 1337
If you prefer to spare terminal window and detach (thus using REPL only
from inside IDE) add -d option:
$ docker run --name=app --rm -dit --detach-keys=ctrl-@\
-p 127.0.0.1:1337:1337\
-v "$HOME/.m2:/home/app-user/.m2" -v "$PWD:/usr/local/src/app"\
shellbro/devbox-clojure :host 0.0.0.0 :port 1337
You can customize a port number over which nREPL is available on the localhost by exposing it on another port. For example, to change the port number from 1337 to 1338 run:
$ docker run --name=app --rm -dit --detach-keys=ctrl-@\
-p 127.0.0.1:1338:1338\
-v "$HOME/.m2:/home/app-user/.m2" -v "$PWD:/usr/local/src/app"\
shellbro/devbox-clojure :host 0.0.0.0 :port 1338
or
$ docker run --name=app --rm -dit --detach-keys=ctrl-@\
--network=host\
-v "$HOME/.m2:/home/app-user/.m2" -v "$PWD:/usr/local/src/app"\
shellbro/devbox-clojure :port 1338
Once nREPL for your project is running you can connect to it from CIDER:
M-x cider-connect
> localhost
> PORT_NUMBER
Build an app image
FROM shellbro/devbox-clojure as builder
COPY --chown=app-user:app-user project.clj /usr/local/src/app
RUN lein deps
COPY --chown=app-user:app-user . /usr/local/src/app
RUN mv "$(lein uberjar | sed -n 's/^Created \(.*standalone\.jar\)/\1/p')"\
app-standalone.jar
FROM openjdk:11-jre
ARG HOST_UID=1001
ARG HOST_GID=1001
RUN groupadd -g $HOST_GID app-user &&\
useradd -u $HOST_UID -g $HOST_GID -m app-user
COPY --from=builder --chown=app-user:app-user\
/usr/local/src/app/app-standalone.jar /home/app-user
USER app-user
WORKDIR /home/app-user
ENTRYPOINT ["java", "-XX:MaxRAMPercentage=50.0", "-jar", "app-standalone.jar"]
Tag summary
Content type
Image
Digest
Size
237.1 MB
Last updated
over 6 years ago
docker pull shellbro/devbox-clojure