Pearlicia-Blog

Install Docker on Ubuntu EC2 Instance

Here are the steps to install docker into your EC2 Instance

You can use local SSH or use Putty if you are using Windows to connect your Ubuntu EC2 Instace. You can also directly use the web console by clicking into your EC2 instance name and choosing connect.
Update and Upgrade packages Ensure your system is up-to-date with the latest packages by running the update and upgrade commands.
```
sudo apt update && sudo apt upgrade -y
```
This ensures your system is equipped with the latest security patches and improvements.

Add Docker’s package repository Prepare your system to fetch Docker’s repository key and add the official repository.

Install necessary tools and dependencies for secure package retrieval.
```
sudo apt install ca-certificates curl gnupg lsb-release
```

Download Docker’s GPG key and store it securely.

sudo mkdir -p /etc/apt/keyrings

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

Add Docker’s official repository for Ubuntu.

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

Refresh your package lists after adding the Docker repository.
```
sudo apt update
```

Install Docker Community Education Install Docker Community Edition along with essential tools.
- Install Docker and its components to enable containerization.
```
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
```
- Verify the successful installation of Docker.
```
docker -v
```
- Check the status of the Docker service.
```
systemctl status docker --no-pager -l
```
Add your Ubuntu user to the Docker Group Grant Docker privileges to your Ubuntu user.
- Include your user in the Docker group to execute Docker commands without sudo.
```
sudo usermod -aG docker $USER
```
- Check if your user has been added to the Docker group successfully.
```
id $USER
```
Reload the Shell Session Activate the changes by reloading the shell session.

Refresh your user’s group memberships to apply Docker group changes.
```
newgrp docker
```

Test Docker by installing an Image Ensure Docker is functioning correctly by running a test image, like Hello-world.
```
docker run hello-world
```