feat($Gradle): integrate Google Jib with Gradle

auth-center/auth-center-bootstrap/build.gradle.kts

@@ -1,18 +1,25 @@
 @file:Suppress("UnstableApiUsage")
 
+import com.palantir.gradle.gitversion.VersionDetails
+import groovy.lang.Closure
 import org.springframework.boot.gradle.tasks.bundling.BootJar
 import org.springframework.boot.gradle.tasks.run.BootRun
+import java.time.LocalDateTime
 
 description = "Muscle and Fitness Server :: Auth Center - Bootstrap"
 
-tasks.withType<BootJar> {
-    this.enabled = true
+plugins {
+    id("com.google.cloud.tools.jib")
 }
 
 springBoot {
     buildInfo()
 }
 
+tasks.withType<BootJar> {
+    this.enabled = true
+}
+
 tasks.withType<BootRun> {
     if (project.hasProperty("jvmArgs")) {
         val jvmArgsProperty = (project.properties["jvmArgs"] as String)
@@ -37,3 +44,28 @@ dependencies {
     implementation(project(":auth-center-web"))
     implementation(project(":auth-center-message"))
 }
+
+// https://github.com/GoogleContainerTools/jib/tree/master/jib-gradle-plugin
+jib {
+    pluginExtensions {
+        pluginExtension {
+            implementation = "com.google.cloud.tools.jib.gradle.extension.springboot.JibSpringBootExtension"
+            properties = mapOf("useDeprecatedExcludeDevtoolsOption" to "true")
+        }
+    }
+    val temurinTag: String by properties
+    from.image = "eclipse-temurin:${temurinTag}"
+    val dockerHubRepositoryPrefix: String by properties
+    val projectArtifactId: String by properties
+    val authCenterArtifactId: String by properties
+    to.image = "$dockerHubRepositoryPrefix$projectArtifactId.$authCenterArtifactId"
+    val versionDetails: Closure<VersionDetails> by extra
+    val details = versionDetails()
+    to.tags = setOf("${details.gitHash}-${project.version}")
+    container.appRoot = "/$authCenterArtifactId"
+    val projectBuildSourceEncoding: String by properties
+    container.jvmFlags = listOf("-Dfile.encoding=$projectBuildSourceEncoding")
+    val authCenterPort: String by properties
+    container.ports = listOf(authCenterPort)
+    container.creationTime = LocalDateTime.now().toString()
+}

build.gradle.kts

@@ -13,6 +13,9 @@ plugins {
     id("org.springframework.boot") apply false
     // https://docs.spring.io/dependency-management-plugin/docs/current/reference/html/
     id("io.spring.dependency-management") apply false
+    id("com.google.cloud.tools.jib") apply false
+    id("com.palantir.git-version")
+    id("com.github.ben-manes.versions")
 }
 
 java.sourceCompatibility = VERSION_17
@@ -26,6 +29,13 @@ tasks.withType<BootJar> {
     this.enabled = false
 }
 
+buildscript {
+    dependencies {
+        // https://github.com/GoogleContainerTools/jib-extensions/blob/master/first-party/jib-spring-boot-extension-gradle/README.md
+        classpath("com.google.cloud.tools:jib-spring-boot-extension-gradle:0.1.0")
+    }
+}
+
 allprojects {
     val projectGroupId: String by project
     group = projectGroupId
@@ -56,6 +66,8 @@ subprojects {
         plugin("org.springframework.boot")
         // https://docs.spring.io/dependency-management-plugin/docs/current/reference/html/
         plugin("io.spring.dependency-management")
+        plugin("com.palantir.git-version")
+        plugin("com.github.ben-manes.versions")
     }
 
     tasks.withType<KotlinCompile> {

gradle.properties

@@ -23,6 +23,12 @@ kotlinVersion=1.6.21
 springBootVersion=2.7.2
 springCloudVersion=2021.0.3
 springDependencyManagementVersion=1.0.12.RELEASE
+jibVersion=3.2.1
+# Don't use alpine or slim version, https://hub.docker.com/_/eclipse-temurin?tab=tags&page=1&name=17.0.3_7-jre
+temurinTag=17.0.3_7-jre
+gradleGitVersion=0.15.0
+gradleVersionsPluginVersion=0.42.0
+dockerHubRepositoryPrefix=docker.io/ijohnnymiller/
 springBootAdminStarterVersion=2.7.1
 springDocVersion=1.6.9
 logstashLogbackEncoderVersion=7.2

settings.gradle.kts

@@ -4,11 +4,17 @@ pluginManagement {
     val kotlinVersion: String by settings
     val springBootVersion: String by settings
     val springDependencyManagementVersion: String by settings
+    val jibVersion: String by settings
+    val gradleGitVersion: String by settings
+    val gradleVersionsPluginVersion: String by settings
     plugins {
         kotlin("jvm") version kotlinVersion
         kotlin("plugin.spring") version kotlinVersion
         id("org.springframework.boot") version springBootVersion
         id("io.spring.dependency-management") version springDependencyManagementVersion
+        id("com.google.cloud.tools.jib") version jibVersion
+        id("com.palantir.git-version") version gradleGitVersion
+        id("com.github.ben-manes.versions") version gradleVersionsPluginVersion
     }
 }