How to view container logs and how to connect to it?

To view the logs of a container in Docker, use the command:

docker logs <container_id_or_name>

To connect to a running container and execute commands inside it, you can use:

docker exec -it <container_id_or_name> /bin/bash

If the container does not have bash, you can try sh:

docker exec -it <container_id_or_name> /bin/sh

These commands allow you to view the container's output and interact with its filesystem and processes.