create a docker container from a dockerhub image

docker container run -it -p 80:80 nginx

-> here container is the management command for docker(you can find all in typing docker in terminal)

-> run is a subcommand(again find all by typing docker in terminal)

-> -it is another subcommand running the container in a interactive mode ..it will show log straight in the terminal after container runs and stables. And -d is for running the container is detached mode. so -d will run the container in the background and will not show logs straight ahead

docker container run -it -p 80:80 nginx

-> -p is a tag to map the port, the port on the left side of the : is your computers port and the port on the right side is the port the container and these two ports maintains a tcp connection. So any request coming from your computer 80 port will be forwarded to containers 80 port

-> the last nginx is the image in dockerhub that it pulls from and builds a container...remember each container is built from a image that means you can run several container from a image. So, there can be multiple instances (container) of a image.

give that a name with --name flag

docker container run -d -p 80:80 --name mynginx nginx

CONTAINER ID   IMAGE     COMMAND                  CREATED             STATUS                      PORTS                NAMES
2d0c0dfe3dd6   nginx     "/docker-entrypoint.…"   5 seconds ago       Up 4 seconds                0.0.0.0:80->80/tcp   mynginx

List docker containers

List running and stopped containers(two ways and ps is the old way)

$: docker container ls -a

$: docker ps -a

List only running containers(two ways and ps is the old way)

$: docker container ls

$: docker ps

List docker images

$: docker images   

REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
nginx        latest    62d49f9bab67   2 weeks ago   133MB

Delete docker image

$ docker image rm 62d

-> Important Note: Sometimes need to add the -f flag if the image is being used by a container...

Pull a image from docker hub at any time

-> docker pull nginx

get inside a container

docker exec -it <container name> /bin/bash

riyadzaigirdar / docker Goto Github PK

docker's Introduction

create a docker container from a dockerhub image

-> here container is the management command for docker(you can find all in typing docker in terminal)

-> run is a subcommand(again find all by typing docker in terminal)

-> -it is another subcommand running the container in a interactive mode ..it will show log straight in the terminal after container runs and stables. And -d is for running the container is detached mode. so -d will run the container in the background and will not show logs straight ahead

-> -p is a tag to map the port, the port on the left side of the : is your computers port and the port on the right side is the port the container and these two ports maintains a tcp connection. So any request coming from your computer 80 port will be forwarded to containers 80 port

-> the last nginx is the image in dockerhub that it pulls from and builds a container...remember each container is built from a image that means you can run several container from a image. So, there can be multiple instances (container) of a image.

give that a name with --name flag

List docker containers

List running and stopped containers(two ways and ps is the old way)

List only running containers(two ways and ps is the old way)

List docker images

Delete docker image

-> Important Note: Sometimes need to add the -f flag if the image is being used by a container...

Pull a image from docker hub at any time

get inside a container

docker's People

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