How to install Docker in Ubuntu 22.0.4

-

Please find steps needed for installing Docker in Ubuntu 22.0.4 instance. You can install in Docker in many ways. But try only one option.


Docker installation steps using default repository from Ubuntu
Update local packages by executing below command:
sudo apt-get update

Install the below packages
sudo apt install gnupg2 pass -y

gnupg2 is tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures
 
Install docker
sudo apt install docker.io -y

Add Ubuntu user to Docker group
sudo usermod -aG docker $USER

We need to reload shell in order to have new group settings applied. Now you need to logout and log back in command line or execute the below command:
newgrp docker

The Docker service needs to be setup to run at startup. To do so, type in each command followed by enter:

sudo systemctl start docker
sudo systemctl enable docker
sudo systemctl status docker

The above screenshot should confirm that Docker daemon is up and running.

Docker installation steps using Official Docker Repository (Alternative installation steps)

sudo 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-get update
sudo apt-cache policy docker-ce
sudo apt-get install -y docker-ce
sudo systemctl status docker

now press q to come out this.
ps -ef | grep docker

docker --version

sudo docker run hello-world

the above command should display the below message..

you should see below message 
Hello from Docker!
This message shows that your installation appears to be working correctly.

Setup Docker Registry
Now we need to setup Docker registry. You have one of three options.

Option 1 - DockerHub as Docker Registry
 
Option 2 - Configure Nexus as Docker Registry

Option 3 - Configure AWS ECR as Docker Registry
How to setup Elastic Container Registry (ECR) for Docker on AWS
 
Option 4 - Configure Azure Container Registry


Microservices Introduction
Containerization is increasingly popular because containers are:
  • Flexible: Even the most complex applications can be containerized.
  • Lightweight: Containers leverage and share the host kernel.
  • Interchangeable: You can deploy updates and upgrades on-the-fly.
  • Portable: You can build locally, deploy to the cloud, and run anywhere.
  • Scalable: You can increase and automatically distribute container replicas.
  • Stackable: You can stack services vertically and on-the-fly.
































Comments











Post a Comment























Popular posts from this blog









Install Ansible on Ubuntu | How to setup Ansible on Ubuntu 22.0.4 | Ansible install on Ubuntu






-














Image







Ansible is #1 configuration management tool. It can also be used for  infrastructure   provisioning  as well. or You can use Ansible in combination of Terraform which can take care of infra automation and Ansible can do  configuration  management.   Ansible Architecture:   The best way to install Ansible for Ubuntu is to add the project's PPA (personal package archive) to your system. You also would need Boto framework for provisioning resources in AWS cloud. Pre-requisites Create new Ubuntu EC2 instance for installing Ansible, just open port 22. Change Host Name to AnsibleMgmtNode sudo hostnamectl set-hostname  AnsibleMgmtNode Update Repository sudo apt-get update Install Ansible: sudo apt install ansible sudo apt install python3-pip -y  ( this is just comment -  Package manager for python) Install Boto Framework - AWS SDK sudo pip3 install boto boto3 Ansible will access AWS resources using boto SDK. sudo apt-get install python3-boto -y pip list boto | grep boto (the above command








Read more










 Setup build agent/slave VM and Integrate with Jenkins Master






-














Image







Jenkins has powerful feature of master slave architecture which enables distributed builds. This article we will learn how to establish slave nodes on Ubuntu machines and integrate with Jenkins Master. Jenkins Master Your main Jenkins server is the Master. The Master’s job is to handle: Scheduling build jobs. Dispatching builds to the slaves for the actual execution. Monitor the slaves (possibly taking them online and offline as required). Recording and presenting the build results. A Master instance of Jenkins can also execute build jobs directly. Jenkins Slave A Slave is a Java executable that runs on a remote machine. Following are the characteristics of Jenkins Slaves: It hears requests from the Jenkins Master instance. Slaves can run on a variety of operating systems. The job of a Slave is to do as they are told to, which involves executing build jobs dispatched by the Master. You can configure a project to always run on a particular Slave machine, or a particular type of Slave ma








Read more










Install SonaType Nexus 3 using Docker Compose






-














Image







  How to setup SonaType Nexus 3 using Docker compose? Nexus is open source, binary repository manager and Java based tool. It can be installed quickly using Docker with less manual steps. What is Docker Compose? Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration.  Since Docker Compose lets you configure related containers in a single YAML file, you get the same Infrastructure-as-Code abilities as Kubernetes. But they come in a simpler system that’s more suited to smaller applications that don’t need Kubernetes’ resiliency and scaling.   The purpose of  docker - compose  is to function as  docker  cli but to  issue multiple command s much more quickly. To make use of  docker - compose , you  need  to encode the commands you were running before into a  docker - compose . yml  file   Run  docker 








Read more