Makefile-追加到命令

Question

I am writing a Makefile for my Docker app. I have make start-image , which starts the image with it's default command:

start-image:
  docker run name

I would like to have another command make do_something which would append the command that should be run within the docker container:

do_something:
  docker run name command args

How can I use the start-image command to do that?

Answer 1

Use a variable to store the common part of the commands

RUNTOOL=docker run name

start-image:
     ${RUNTOOL}

do-something:
     ${RUNTOOL} command args

With this strategy, it is also possible to build the RUNTOOL variable out of smaller parts to accomodate for more complex tasks.

Answer 2

start-image:
    docker run name $(ARGS)

do_something: ARGS=command args
do_something: start-image