filex/echo-json repository overview

echo-json is a tiny go cli utility that accepts name/value pairs as command line arguments and prints them as a JSON object.

$ echo-json foo bar baz '"quux"'
{"baz":"\"quux\"","foo":"bar"}

While this seems silly, it can be very helpful to output JSON formatted log messages in cli tools.

Docs and source: https://github.com/filex/echo-json/⁠

This image is not really useful for direct execution. However, you can use it to see how echo-json works:

$ docker run --rm -it filex/echo-json foo bar baz:int 123
{"baz:int":"123","foo":"bar"}

The actual purpose of this image is being available as a COPY --from target if you want to use echo-json in your Docker image:

FROM filex/echo-json as echo-json

FROM alpine # … your image starts here
…
COPY --from=echo-json /echo-json /usr/local/bin/