#6 | Docker build, run and remove

A mega simple script to build a docker image, run the container and then remove the container. This is useful when you’re interating or you want to repeatrun the container like a script or binary many times.

#!/bin/bash
dockerfile=$1
image_name="image_${dockerfile}"
docker build -t $image_name -f "./${dockerfile}" . && docker run -t --rm $image_name
echo $?

• -t specifies an image name.

• -f specifies the dockerfile. This file should be in the current directory because of the . at the end of the build command.

• -t connects your terminal to the input and output streams of the container. This is useful if you want to see output as the container command runs.

• -rm removes the container once it has run.

• echo $?` prints out the result of the previous command.

If this was in an executable file called run_dockerfile.sh then you could do

./run_dockerfile.sh my_app.docker

Possible improvements:

• Validate the inputs.

• Handle errors.

• Use a default dockerfile name (e.g. DOCKERFILE).

• Pass extra arguments on to docker run e.g. memory allocation.

It seems you can achieve something similar with docker-compose. However when I tried it I had some difficulty getting stdout and stderr.