Docker example
A simple python app that uses docker. This app shows how to set the environment variable in Dockerfile and use it inside the container.
It also shows to take the user input form the host terminal inside the docker container.
At the last step we copied a file from the docker container to the host using docker cp command
Build
To build the Docker file use the following command.
sudo docker build -t docker-example .
Run
To run the docker image as a container use the following command:
sudo docker run -it docker-example
As this docker image takes input from user in terminal. You must run it with -it.
Copy file from docker container to host
Run the docker cp command to copy the file from docker container to host.
In this case use the following command:
sudo docker cp [container_name]:/test.txt .
You can get the container name using the following command.
sudo docker ps -a