Command option to go offline without running anything

[brunoborges]

As a user, I'd like to create a Dockerfile and during build time, cache all required deps (JDK and libraries), and also prep the app for faster startup when the container starts.

Suggestion:

$ jbang prepare <app>

As an example:

FROM jbangdev/jbang-action

RUN echo "eula=true" > eula.txt

ENTRYPOINT ["jbang", "minecraft-server@microsoft"]

With this, the JDK and the JAR file will be downloaded at every new container.

[maxandersen]

two options:

RUN jbang build minecraft-server@microsoft and it will build so its cached.
or if you want to aviod any overhead do:

RUN jbang export minecraft-server@microsoft
ENTRYPOINT ["jbang", "minecraft-server.jar"]

[quintesse]

Of course the real way to make a tiny build that only builds once is this: https://github.com/quintesse/door-opener-proxy/blob/main/Dockerfile 😉