uqutub / piaic-docker-cnc

PIAIC Docker Class Code

Docker

Build Image

docker build -t <image-name>:<tag> .

$ docker build -t myapp:1 .

Run Container

docker run --name <container-name> -p <host-port>:<container-port> <image-name>:<tag>

$ docker run --name cont-name -p 8080:80 myapp:1

For Test

$ curl http://localhost:8080

Cleanup

Running container can be stopped by

$ docker stop cont-name

and removed by

$ docker rm cont-name

With the image it is even simpler. In order to remove it run

$ docker rmi myapp:1

(before removing any Docker image you always must stop all containers that uses the image).

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Cheat Sheet

Command	Description
docker pull user/<image-name>:<tag>	Pulls the image from the docker hub
build -t <image-name>:<tag> .	Builds the image from the Dockerfile with the mentioned name and tag
docker image ls	Shows the list of the images present on your system. short-hand 'docker images'
docker container ls	Displays the only running containers. short-hand 'docker ps'
docker container ls -a	Displays all the containers present on your system. short-hand 'docker ps -a'
docker inspect <image name>:<tag>	Shows the detailed information about the image in JSON format.
docker history <image name>:<tag>	Used to inspect the layers of the image.
docker tag <source-image>:<tag> <new-image-name>:<tag>	Create a tag of the new image that refers to source image.
docker push user/<image-name>:<tag>	Push an image to a registry
docker image rm <image name>:<tag>	Remove the image. short-hand 'docker rmi <image name>:<tag>'
docker run --name <container_name> -p <host:port> -d <image_name>	Create the container with the specified name and assign the specified port from the image.
docker run --name <container-name> -it -p <host-port> <image-name>:<tag> sh	To run a container from an image in an interactive mode. Press Ctrl + pq it will detach terminal and leave container running in background.
docker exec -it <container_name> sh	To go in the running container shell. Write exit to detach the terminal
docker stop container_name	It will stop the running container.
docker start container_name	Start the stopped container
docker rm container_name	Remove the container.
docker logs container_name	fetch the logs of the container
docker volume create my-vol	Create your Volume for Persistent Data
docker volumes ls	List down the volumes
docker volume inspect my-vol	inspect the volumes
docker volumes rm my-vol	remove volume
docker run -d --name mycont -v my-vol:/app nginx:latest	start container with -v flag (volume mount)
docker run -d --name devtest --mount source=my-vol,target=/app nginx:latest	start container with --mount flag
docker run -d -it --name devtest -v "$(pwd)"/myfolder:/app nginx:latest	start container with bind mounts and -v flag
docker run -d -it --name devtest --mount type=bind,source="$(pwd)"/myfolder,target=/app nginx:latest	start container with bind mounts and -mount flag