Docker : How to install docker on Ubuntu 24.04 Linux OS ?

 

How to install docker on Ubuntu 24.04 Linux OS  

Installing Docker on Ubuntu 24.04 is a straightforward process. Here's a step-by-step walkthrough

🛠️ Step-by-Step Guide to Install Docker on Ubuntu 24.04

Update Your System

sudo apt update && sudo apt upgrade

Install Required Packages. 

These help your system communicate securely with Docker’s repository. 

sudo apt install apt-transport-https ca-certificates curl software-properties-common

Add Docker’s Official GPG Key

        curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

Add Docker Repository

echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Update Package Index Again

sudo apt update

Install Docker Engine

sudo apt install docker-ce docker-ce-cli containerd.io docker-compose-plugin

Start and Enable Docker

sudo systemctl start docker
sudo systemctl enable docker

(Optional) Run Docker Without Sudo

sudo usermod -aG docker $USER
newgrp docker

Test Your Installation

docker run hello-world

How to upgrade JAVA version in AWS Linux instance

How to upgrade JAVA version in AWS Linux instance

On AWS EC2 instance(Linux) if you ever want to upgrade JAVA version to latest ,you can do it using following command.

Once the instance (EC2 linux) is up and running , connect remotely and logged in.

1. Check the version of JAVA using :

 -> java -version

2. Uninstall the Older version using : [in my case its java-1.7.0-openjdk ]

-> sudo yum remove java-1.7.0-openjdk

3. Install the Newer version of JAVA using :

-> sudo yum install java-1.8.0

To make sure its installed correctly - check the version again using command given in Step1 above.

Thats it...