README.md

Signal handling

Exercise 1

Build and start image using commands below:

export CMD=plain; docker build --file Dockerfile-shell-go --build-arg CMD -t signal-handling:shell-${CMD} .
docker run -d signal-handling:shell-${CMD} 

stop image using command:

docker stop <CONTAINER_ID>

• Explain why docker stop doesn't stop process immediately and
• fix Dockerfile to receive termination signals.

Hints:

• use docker inspect <CONTAINER_ID> to explore container runtime settings
• remember previous exercise

Exercise 2

Verify that signals being sent to process end in successful closing of process.

export CMD=signal; docker build --file Dockerfile-shell-go --build-arg CMD -t signal-handling:shell-${CMD} .
docker run -d signal-handling:shell-${CMD} 

Exercise 3

Operations version of Ex2

Verify that signals being sent to process end in successful closing of process.

docker build --file Dockerfile-trap -t signal-handling:trap .
docker run -d signal-handling:trap