DevOps Classroom notes 02/Sep/2026

Docker componets:

1. docker client:

• docker clinet is commandline to communicate docker demon

2. docker demon

• its background runing docker as a service

3. local storage

• where my images and related data will be stored

install docker

ubuntu os install docker

first create linux machine and connect form you local

ssh -i <private key file path > username@ipaddress

Ex:
ssh -i .\docker_key.pem azureuser@20.46.241.140

curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh ./get-docker.sh --dry-run
sudo sh ./get-docker.sh
sudo  newgrp docker
sudo usermod -aG docker $USER
docker ps

Pull image

docker pull <imagename>:<version/tag>

docker pull httpd # tag will pick latest if not mention

docker push imagename:tag

imageName:
<org>/<reponame>/<imagename>:<tag>
<org>/<reponame>/<projectname>/<imagename>:<tag>
<org>/<imagename>:<tag>

smaple file

FROM ubuntu