How to Deploy a java application using Docker
Sign Up for AWS
If you don’t have an AWS account, sign up for one here. AWS provides a Free Tier with limited resources for 12 months, which is great for learning and experimenting.
Go to EC2 Dashboard:
Open the AWS Management Console.
Navigate to the EC2 service.
Launch an EC2 Instance:
Click on “Instances” in the left navigation pane.
Click “Launch Instance” and choose an Amazon Machine Image (AMI) (e.g., Amazon Linux).
Configure instance details, add storage, configure security groups to allow HTTP/HTTPS traffic.
Connect to EC2:
Once the instance is running, connect to it using SSH.
Install Docker and AWS CLI
Make sure you have Docker installed on your local machine. You can download Docker from the official website: Docker Install.
Also, install the AWS Command Line Interface (CLI). You can download it from the official website: AWS CLI Install.
install Docker through cli:
- Open a terminal and update the package list
- Install docker
- Check the status
- Create a Dockerfile
In the same directory as your Java application, create a Dockerfile named Dockerfile (without any file extension) with the following content:
- Create a Java Application
Create a simple Java application. For example, create a file named Hello.java with the following content:
- Build the Docker Image
Open a terminal or command prompt, navigate to the directory containing your Java application and Dockerfile, and run the following command to build the Docker image:
- Run the Docker Container
After successfully building the Docker image, run the following command to start a Docker container:
You should see the output of your Java application, in this case, “Hello, Docker!”
Additional Tips:
Adjust the OpenJDK version in the Dockerfile according to your requirements.
Customize the Dockerfile to match the structure and requirements of your Java application.
If your Java application requires external dependencies or libraries, you may need to include them in the Dockerfile.
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