Project Based Task: Automated Deployment and Configuration with Ansible for Boilerplates

Your task is to set up a new instance of the java boilerplate using Infrastructure as Code (IaC) with Ansible. The setup should include the following:

Clone and Deploy:

Clone the DevOps branch of your boilerplate repository to a Linux server. Deploy the boilerplate application on the server.

Install Dependencies:

Install all dependencies required for your boilerplate to run, including databases and messaging queues.

Setup PostgreSQL:

Configure a PostgreSQL database. Save the admin user and credentials in /var/secrets/pg_pw.txt.

Messaging Queue:

Set up any required messaging queue (e.g., RabbitMQ, Redis).

Application Configuration:

Ensure your application starts on port 3000. Set up Nginx to reverse proxy your application to port 80.

Logging:

Configure stderr logs to be saved in /var/log/stage_5b/error.log and stdout logs in /var/log/stage_5b/out.log. Ensure both log files are owned by the hng user.

Database and Dependencies:

Install PostgreSQL and save the admin credentials in /var/secrets/pg_pw.txt.

Install all application dependencies, including databases and messaging queues, and configure the environment variables or application settings accordingly.

Application and Proxy Setup:

Ensure the application is running on 127.0.0.1:3000 without exposing port 3000 externally. Install Nginx 1.26 and configure it to reverse proxy requests from port 80 to your application.

Logging Configuration:

Set up logging so that stderr logs are written to /var/log/stage_5b/error.log and stdout logs to /var/log/stage_5b/out.log, with both files owned by the hng user.

summary

Essential Packages Installation:

• Installs necessary packages including Git, Java (OpenJDK 17), Maven, PostgreSQL, and Nginx.

PostgreSQL Configuration:

• Sets up a PostgreSQL database (hng_db) and user (postgres) with appropriate permissions.
• Stores credentials securely and ensures the database is running.

Application Build and Run:

• Uses Maven to build the Java application (./mvnw clean install).
• Runs the application using the generated JAR file (your-app.jar should be replaced with the actual file name).

Nginx Configuration:

• Configures Nginx to act as a reverse proxy for the application.

Testing:

• Runs the tests included in the src/test/java/hng_java_boilerplate directory using Maven (./mvnw test).