Executing Commands Using ENTRYPOINT and CMD Lets understand these concepts practically. The resulting command will be executed when the container is started. If both ENTRYPOINT and CMD are specified in a Dockerfile, the command specified in CMD will be appended to the ENTRYPOINT command. The default ENTRYPOINT command is /bin/sh -cĬMD, on the other hand, is used to specify the default command and arguments that should be executed when a container is started. In a Dockerfile, ENTRYPOINT and CMD are two different instructions that are used to define how a container should run.ĮNTRYPOINT is used to specify the main command that should be executed when a container is started using the image. In this blog we will look at the key differences between Docker ENTRYPOINT vs CMD instruction using a practical example.
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