Docker:

Docker works as a platform as a service. It is the best example of PAAS. Docker required a docker engine. Docker creates a virtual environment called a docker container. It works independently without disturbing other projects. Docker containers all things like code, required commands, and authentication.

Docker commands:

docker build: Builds an image from a Dockerfile.

docker build [OPTIONS] PATH | URL | 

docker build -t <image_name> .

docker run: Runs a command in a new container.

docker run [OPTIONS] IMAGE [COMMAND] [ARG...]

docker run -d --name <container-name> -p 80:80 <image-name>

docker start: Starts one or more stopped containers.

docker start <container-name>

docker stop: Stops one or more running containers.

docker stop <container-name>

docker pull: Pulls an image or a repository from a registry.

docker pull <image-name:tag>

docker push: Pushes an image or a repository to a registry.

docker push <image-name:tag>

docker exec: Runs a command in a running container and goes inside a container.

docker exec -it <container-name or ID> bash

docker rm: Removes one or more containers.

docker rm <container-name or ID>

docker rmi: Removes one or more images.

docker rmi <image-name>

docker images: Lists all the images on the local system.

docker images

docker ps: Lists all running containers.

docker ps

docker logs: Fetches the logs of a container.

docker logs <container-name or ID>

docker inspect: Returns low-level information on a container or image.

docker inspect <container-name or ID>

Docker Volume:

docker volume create: Create a volume

docker volume create <volume-name>

docker volume ls: List volumes

docker volume ls

docker volume inspect: Display detailed information on one or more volumes

docker volume inspect <volume-name>

docker volume rm: Remove one or more volumes

docker volume rm <volume-name>

docker volume prune: Remove all unused volumes

docker volume prune

INFO & STATUS

Show the log of a container

#docker logs CONTAINER
docker logs web

Show the stats of a running container

docker stats

Show the process of container

#docker top CONTAINER
docker top web

Show the installed docker version

docker version

Get the details info of Docker

#docker inspect NAME
docker inspect web

Show all modified files in a container

#docker diff conatiner
docker diff web

Show the mapped port of a container

#docker port CONATINER
docker port web

Builder Main Commands

Docker-compose

# docker-compose.yml
version: '2'

services:
  web:
    build:
    # build from Dockerfile
      context: ./Path
      dockerfile: Dockerfile
    ports:
     - "5000:5000"
    volumes:
     - .:/code
  redis:
    image: redis

• docker-compose up: Create and start containers

    docker-compose up
  

  docker-compose ps: List containers

    docker-compose ps
  

  docker-compose down: Stop and remove containers, networks, images, and volumes

    docker-compose down
  

  docker-compose logs: Show logs

    docker-compose logs <service>