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IT/Devops

Docker

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delete previous docker before installing :

sudo yum remove docker docker-engine docker.io containerd runc

 

download docker convenience script : 

curl -fsSL https://get.docker.com -o get-docker.sh

sudo sh get-docker.sh

 

docker whael : 

sudo docker run docker/whalesay cowsay hello!

 

running container : 

docker ps 

 

remove a container : 

docker rm #name#

 

list images :

docker images

 

remove image :

docker rmi #ngnix#

 

download an image :

docker pull #ngnix#

(only downloads the image)

 

execute command : 

docker exec #distracted_mcclintock cat /etc/hosts

 

attach and detach :

docker run kodekloud/simple-webapp

docker run -d kodekloud/simple-webapp (background mode)

docker attach a034d (add images id)

 

Run a container with the nginx:1.14-alpine image and name it webapp:

docker run --name webapp nginx:1.14-alpine

 

tag :

docker run redis:4.0 (4.0 is the tag)

 

-i : interative mode

-t : terminal

inspect container : 

docker inspect #name#

 

container logs : 

docker logs #name#

 

How to create my own image? :

 

cmd vs terminal 

 

netwokr : 

 

 

 

 

docker compose : 

ONLY FOR SINGLE DOCKER HOST

 

Sample application - vote : 

 

docker registry : 

docker engine : 

 

docker swarm : 

kubernetes 쿠벌네틱스:

 

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