Docker Basics

From ppwiki
Jump to: navigation, search


For the purpose of this tutorial, I am using a virtual machine running on EXSI 5.5 host. The VM has 2GB of memory, 1 CPU and 60GB of disk. I named the VM Docker2001.The VM is in a DHCP and DNS environment with a docker2001.dfw.ppnet as the FQDN. If you have a bare metal, you can use that also. The VM has Debian Stretch installed on it.


Login to your server, create a file called Copy and paste the script below into the file.

sudo apt-get -y install curl
curl -fsSL | sudo apt-key add -
sudo apt-get -y install software-properties-common
sudo apt-get -y install apt-transport-https
sudo add-apt-repository "deb [arch=amd64] $(lsb_release -cs) stable"
sudo apt-get update
apt-cache policy docker-ce
sudo apt-get install -y docker-ce

Save the file and make the file executable and run the script.

sudo chmod +X
sudo ./

Check the installation by checking the docker version

ppaul@docker2001:~$ sudo docker --version
Docker version 18.06.1-ce, build e68fc7a

Working with images

The first command we are going to us, is the command to list all our images.

ppaul@docker2001:~$ sudo docker images
REPOSITORY          TAG                 IMAGE ID            CREATED  

We can see that for now we have no images.

Download images

The command to download an images is

docker pull "name_of_images 

We are going to download the percona monitoring image

docker pull percona/pmm-server:latest
ppaul@docker2001:~$ sudo docker images
REPOSITORY           TAG                 IMAGE ID            CREATED             SIZE
percona/pmm-server   latest              deac61541b67        5 weeks ago         1.08GB

Now we can see that we have an image.

working with containers