Docker Commands

Save:

• docker save huzefa/test-app2 -o test-app2.tar

run the container with streamlit defined port:

• docker run -it --name my_container2 -p 8502:8502 -e STREAMLIT_SERVER_PORT=8502 huzefa/test-app2

Build Image:

• docker build -t huzefa/test-app2 .

Remove image:

• docker rmi [imgid]

show the list of containers

-a to show containers that are stopped as well

• docker ps -a

-d is to run docker container in demonize mode, in the background

• docker run --name webserver -p 80:80 -d nginx

To stop docker container

• docker stop webserver

remove container

• docker rm webserver

To run compose file:

• docker-compose -f [file_name] up
• docker-compose up --build
• docker-compose down

note: when a container is restarted the data inside the container would be gone , for data persistance we can create volume

Volume:

Create Volume:

• docker volume create --name DataVolume

To verify:

We can verify that the volume is present on our system with docker volume inspect

• docker volume inspect DataVolume

To remove:

• docker volume rm DataVolume

Create volume with container image for e.g (ubuntu):

• docker run -dit -P --name ubuntu-test -v /DataVolume:/datavolume ubuntu

  The above command breaks down like this:

  • docker run is the main command that says we’re going to run a command in a new container.
  • -dit is d for detached mode, and it ensures that bash or sh can be allocated to a pseudo terminal, -t will give us a terminal and -i will allow us to interact with it
  • -P publishes the containers ports to the host.
  • --name says what follows is the name of the new container.
  • -v says what follows is to be the volume.
  • ubuntu is the image to be used for the container.

  Note: The -v flag is very flexible. It can bindmount or name a volume with just a slight adjustment in syntax. For example:

  • -v /path:/path/in/container mounts the host directory, /path at the /path/in/container
  • -v path:/path/in/container creates a volume named path with no relationship to the host.

Portainer:

create volume:

• docker volume create portainer_data

install portainer

• docker run -d -p 8000:8000 -p 9000:9000 --name=portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce

volume for window:

• -v \.\pipe\docker_engine:\.\pipe\docker_engine

LINKS

• https://github.com/docker/awesome-compose
• https://docs.docker.com/engine/reference/builder/