DOCKER

Docker is a tool for creating and managing a container.

IMAGES

Images are blueprints for containers. They are read-only and contain the application as well as the necessary application environment. Images do not run themselves, instead they can be executed as containers.

CONTAINER

Containers are running instances of images. When you create a container a thin read-write layer is added on top of the Image.

SOME USEFUL DOCKER COMMANDS:

< image_name > : name of the image
< container_name > : name of the container
< image_id > : id of the image

	Use	Commands
1.	to build an image	docker build .
2.	to build an image with name	docker build -t [any name to the image]:[version] .
3.	to list all the images	docker images
4.	to create and start a container	docker run <image_name>
5.	to create a container with name	docker run --name [any name to the container]
6.	to publish the port for your container	docker run -p [host_port]:[container_port] <image_name>
7.	to list all the running container	docker ps
8.	to list all the container including the stopped container	docker ps -a
9.	run the container in interactive mode	docker run -it <image_name>
10.	to start a container. Note: it would run the container in detached mode	docker start <conatiner_name>
11.	to stop a container	docker stop <container_name>
12.	to run the container in detached mode	docker run -d <image_name>
13.	to see the logs at the time of execution	docker logs <container_name>
14.	to follow logs output	docker logs -f <container_name>
15.	if you want the container in attach mode	docker attach <container_name>
16.	to start a container in attach mode	docker start -a <container_name>
17.	to remove the image	docker rmi <image_name>
18.	to remove the container	docker rm <container_name>
19.	to remove all the images	docker images prune
20.	to remove the container automatically when stopped	docker run --rm <image_id>
21.	to display detailed information of image	docker image inspect <image_id>
22.	to copy any directory from local machine to container	docker cp <local_path> <conatainer_name>: docker cp dummy/. vat:/tests
23.	to copy any directory from container to local machine	docker cp <conatainer_name>: <local_path>
24.	to remove all the images	docker images prune
25.	to push the image to docker registory	docker push <image_name>
26.	to pull the image from the regsitory	docker pull <image_name>
27.	to rename an image	docker tag <old_name> <new_name>
28.	to save the image in your local computer as tar file	docker save --output image.tar <image_name>
29.	to login to the docker registory	docker login
30.	to logout from the docker registory	docker logout