Docker - 2

basic commands in docker

------------------------

login to docker (docker login)

-> to see all images present in your local machine.

docker images

-> to find out images in docker hub

docker search jenkins  (first logout from docker)

-> to download image from dockerhub to local machine

docker pull jenkins

-> to give name to container

docker run -it --name bhupinder ubuntu /bin/bash            (i- interactive mode and t - terminal )

-> to check service is start or not

serice docker status

->to start container

docker start bhupinder

-> to go inside container

docker attach bhupinder

->to see all containers

docker ps -a

-> to see only running containers

docker ps

-> to stop container

docker stop bhupinder

--> to delete container

docker rm bhupinder


how to install docker on linux machine

yum update -y

yum install docker -y

which docker

docker -v

docker --version

service docker status

docker info

service docker start 

service docker status

docker info

docker images


docker run -it --name bhupinder ubuntu /bin/bash 

cat /etc/os-release(run inside the container)


# docker exec -it -u root 7554a5ebe943 /bin/bash

root@server:/usr/local/apache2# cat /etc/os-release

PRETTY_NAME="Debian GNU/Linux 10 (buster)"

NAME="Debian GNU/Linux"

VERSION_ID="10"

VERSION="10 (buster)"

VERSION_CODENAME=buster

ID=debian

HOME_URL="https://www.debian.org/"

SUPPORT_URL="https://www.debian.org/support"

BUG_REPORT_URL="https://bugs.debian.org/"

root@server:/usr/local/apache2# exit

exit


question 

if we start the container then we go inside it and when we do exit it gets stop. how to make it run even if we exit from it.?


docker attach --detach-keys="ctrl-a" new


if you press ctrl a then you will exit the container without stopping it

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