mta-hosting-optimizer

Short description

Currently, about 35 physical servers host 482 mail transfer agents (MTAs) each having a dedicated public IP address. To be economical while hosting MTAs as a software engineer I want to create a service that uncovers the inefficient servers hosting only few active MTAs.

Acceptance Criteria

• Project with the name “mta-hosting-optimizer”.
• A major programming language (Golang) is utilized to build the service.
• A HTTP/REST endpoint to retrieve hostnames having less or equals X active IP addresses exists.
• X is configurable using an environment variable, the default value is set to 1.
• IP Configuration data (IpConfig) is provided by a mock service using sample data below.
• Unit & integration tests are present.
• Code coverage exceeds 90%.
• Integrate the test and build phases to Github action.

Setup required

1. Golang v1.20+ (or 1.16+ should also work)
2. make (to execute the commands from Makefile)

Steps to run the application locally

1. Fetch all golang dependencies by typing the following from root directory:

       go mod download
   

2. Configure the sample data in similar format in the data.json file present within ipconfig directory.
3. Run the application by typing the following from root directory:

       make run
   

4. Navigate from your browser to http://localhost:8082/hosts/inefficient.

Features / Points added

1. Logging mechanism
2. Panic recover handler
3. Github workflow -> test and build phases
4. env file separation
5. Unit/Integration test cases

Scope of Improvement

1. Addition of Dockerfile to enhance collaboration.