build.gradle

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        // The gradle-docker plugin we want to use isn't yet in gradle plugin portal, se we
        // pull it from jcenter
        classpath 'se.transmode.gradle:gradle-docker:1.2'
    }
}

plugins {
    // Use the Spring Boot Gradle plugin, which automatically applies the dependency management plugin
    // and configures it to import the spring-boot-starter-parent bom.
    id 'org.springframework.boot' version '1.5.10.RELEASE'

    // Versioning plugin
    id 'pl.allegro.tech.build.axion-release' version '1.8.1'
}

// The Java plugin allows us to compile and package our code into a jar file
apply plugin: 'java'

// Support for packaging our application as a Docker image
apply plugin: 'docker'

// Define the namespace for our build artifacts (replace with your own group)
group 'atc'

// Explicitly declare that we're using JDK 1.8
sourceCompatibility = 1.8

// Use Maven Central to resolve all 3rd party dependencies
repositories {
    mavenCentral()
}

// Using the dependency management plugin, import the dependencies for
// Spring Cloud release train 'Edgware.SR2'
dependencyManagement {
    imports {
        mavenBom 'org.springframework.cloud:spring-cloud-dependencies:Edgware.SR2'
    }
}

dependencies {
    // Enable Spring MVC
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web'

    // Enable Spring Security
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-security'

    // Production metrics for Spring Boot
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-actuator'

    // Service registration via Eureka
    compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-eureka-server'

    // Enable distributed tracing with Sleuth
    compile group: 'org.springframework.cloud', name: 'spring-cloud-starter-zipkin'

    // Enable JSON logging
    runtime( group: 'net.logstash.logback', name: 'logstash-logback-encoder', version: '4.11' ) {
        exclude group: 'ch.qos.logback', module: 'logback-core'
    }

    testCompile group: 'junit', name: 'junit', version: '4.12'
}

// Configure the spring boot executable jar
springBoot {
    executable = true
    buildInfo()
}

// Versioning with the Axion release plugin
scmVersion {
    // Treat uncommitted changes as trigger for version increment
    ignoreUncommittedChanges = false

    // All versions will start with "v"
    tag {
        prefix = 'v'
        versionSeparator = ''
    }

    // Our versioning scheme is major.minor.rcX. If we're on a branch named "release/*", increment the release
    // candidate number, otherwise increment the minor version number.
    versionIncrementer 'incrementMinorIfNotOnRelease', [releaseBranchPattern: 'release.*']
    branchVersionIncrementer = [
          'master'    : 'incrementMinor',
          'feature'   : 'incrementMinor',
          'release/.*': 'incrementPrerelease'
    ]

    // Decorators
    versionCreator 'simple'
    branchVersionCreator = [
          'feature/.*': 'versionWithBranch'
    ]

    checks {
        // Allow for releasing a new version if there are uncommitted changes
        uncommittedChanges = false
    }
}
project.version = scmVersion.version

// Add the version number to the manifest
jar {
    manifest {
        attributes( "Implementation-Title": project.name,
                    "Implementation-Version": project.version.toString() )
    }
}


// Build the docker container for this application
task buildDocker( type: Docker, dependsOn: build ) {
    push = false
    applicationName = rootProject.name
    dockerfile = file( 'Dockerfile' )

    doFirst {
        // Rename the app jar to "app.jar" so that the Dockerfile does not require renames
        copy {
            from "${project.buildDir}/libs"
            into stageDir
            include "${rootProject.name}-${version}.jar"
            rename( "${rootProject.name}-${version}.jar", "app.jar" )
        }
    }
}


// Configure the Gradle wrapper
task wrapper( type: Wrapper ) {
    gradleVersion = '4.5.1'
}