docker-disguised-guacamole/Jenkinsfile

node("docker && linux && amd64") {
	def images = []
	def dockerNamespace = "icedream"
	def dockerBase = "disguised-guacamole"
	def dockerCredentials = "dockerhub_login_icedream"
	def dockerRegistry = ""
	def versions = [
		// syntax: [ tomcatVersion, jreVersion ]
		["8.5", "jre7"],
		["8.5", "jre8"],
		["9", "jre8"],
	]

	stage("Checkout") {
		checkout scm
	}

	stage("Build") {
		def imageVersion

		versions.each { version ->
			def tomcatVersion = version[0]
			def jreVersion = version[1]

			ansiColor {
				def image = docker.build(
					"${dockerNamespace}/${dockerBase}:tomcat${tomcatVersion}-${jreVersion}",
					"--build-arg TOMCAT_VERSION=${tomcatVersion} --build-arg TOMCAT_JRE=${jreVersion} .")
			}
			
			def guacamoleVersion
			image.inside("-w /tmp") {
				ansiColor {
					sh """
					unzip /opt/guacamole/guacamole.war META-INF/maven/org.apache.guacamole/guacamole/pom.properties
					"""
					guacamoleVersion = sh(
						script: "grep -Po '(?i)^version=\\K.+\\s*\$' META-INF/maven/org.apache.guacamole/guacamole/pom.properties",
						returnStdout: true,
					).trim()
				}
			}

			def imageTag = "${dockerNamespace}/${dockerBase}:${guacamoleVersion}-tomcat${tomcatVersion}-${jreVersion}"
			images << [ image, imageFullName ]
		}
	}

	stage("Push") {
		images.each { imageData ->
			def image = imageData[0]
			def imageTag = imageData[1]
			image.push(imageTag)
		}
	}
}