Docker reference

Docker-reference.txt

 # Run a command on a OS image
 docker container run <container> <command>
 
 # List running containers, --all lists even those that exited
 docker container ls [--all]
 
 # Run a docker container and access its shell, --rm removes container after exiting
 docker container run --interactive --tty [--rm] <container> bash
 
 # Run a background container
 docker container run \
 --detach \                    # <---------------- runs in background
 --name <name> \               # <---------------- reference name
 [--publish <container-port>:<host-port>] \
 [--mount type=bind,source="$(pwd)",target=<target-folder>] \ # <--------------source = $(pwd) uses curretn folder
 -e <ENVIRONMENT_VARIABLE>=<environment variable value> \   # <-------Loads environment variable
 <container>
 
 # See the logs inside a container
 docker container logs <reference-name>
 
 # Look at processes running inside container
 docker container top <reference-name>
 
 # Execute a command inside the container
 docker exec -it <reference-name> <command>
  
 # DOCKERFILE
 -FROM specifies the base image to use as the starting point for this new image you’re creating. For this example we’re starting from nginx:latest.
 -COPY copies files from the Docker host into the image, at a known location. In this example, COPY is used to copy two files into the image: index.html. and a graphic that will be used on our webpage.
 -EXPOSE documents which ports the application uses.
 -CMD specifies what command to run when a container is started from the image. Notice that we can specify the command, as well as run-time arguments.
 
 # Build docker image from Dockerfile
 docker image build --tag <DOCKER-ID>/<name>:<maj-v>.<min-v> .
 
 # Remove docker container
 docker container rm --force <reference-name>
 
 # Login to Docker Hub
 docker login
 
 # Push image to Docker Hub
 docker image push <image>
 
 # Init a Docker Swarm
 docker swarm init --advertise-addr $(hostname -i)
 
 # Deploy a stack
 docker stack deploy --compose-file=<filename>.yml <stack-name>
 
 # Check deployed stack
 docker stack ls
 
 # Check services within the stack
 docker stack services <stack-name>
 
 # Check tasks of a given service
 docker service ps <service>