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Introduction to Docker by Denis Astahov
Install Docker on Ubuntu 18.04
```
sudo apt update
sudo apt install apt-transport-https
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt update
sudo apt install docker-ce
sudo systemctl status docker
sudo usermod -aG docker $USER
>>>logout/login<<<
```
docker run hello-world
docker ps docker ps -a docker images
docker search tomcat docker pull tomcat docker run -it -p 1234:8080 tomcat docker run -it -p 8888:80 nginx docker run -d -p 8888:80 nginx
docker build -t denis . docker images
docker run -it -p 1234:80 denis:latest docker run -d -p 1234:80 denis:latest
docker ps # list containers docker ps -a # list all containers
docker tag denis_ubuntu denis_ubuntu-PROD docker tag denis_ubuntu denis_ubuntu-PROD:v2
docker rm # delete container docker rmi # delete image
UPDATE IMAGE
docker run -d -p 7777:80 denis_ubuntu4
docker exec -it 5267e21d140 /bin/bash
echo "V2" >> /var/www/html/index.html
exit
docker commit 5267e21d140 denis_v2:latest
Export/Import Docker Image to file
docker save image:tag > arch_name.tar docker load -i arch_name.tar
Import/Export Docker Image to AWS ECR
docker build -t denis:v1 .
aws ecr get-login --no-include-email --region=ca-central-1
docker tag denis:v1 12345678.dkr.ecr.ca-central-1.amazonaws.com/myrepo:latest
docker push 12345678.dkr.ecr.ca-central-1.amazonaws.com/myrepo:lastest
docker pull 12345678.dkr.ecr.ca-central-1.amazonaws.com/myrepo:latest
Kill and Delete Containers and Images
docker rm -f $(docker ps -aq) # Delete all Containers docker rmi -f $(docker images -q) # Delete all Images