What methods are used to automate the build and deployment process of applications?

Build and deployment automation of applications is usually carried out using the following methods:

• Build scripts: using Makefile, shell scripts, Gradle, Maven, and other tools for automating compilation, testing, and packaging.

• CI/CD systems: Jenkins, GitLab CI, GitHub Actions, CircleCI, and other platforms that automatically trigger build, test, and deployment upon repository changes.

• Containerization: Docker and Kubernetes allow creating standardized application images and managing their deployment.

• Infrastructure as Code (IaC): Terraform, Ansible, Chef, Puppet for automating server and environment setup.

An example of a simple Jenkins pipeline for build and deployment:

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                sh 'make build'
            }
        }
        stage('Test') {
            steps {
                sh 'make test'
            }
        }
        stage('Deploy') {
            steps {
                sh 'make deploy'
            }
        }
    }
}

This approach helps minimize manual operations, increase speed, and improve the reliability of releasing new versions.