Externalize build properties.

By reading a properties file from an external location, it is possible to inject a consistent set of properties from Spring Data Build. This also supports repeatable builds.

Closes #1214.

Author: gregturn

Jenkinsfile

@@ -1,3 +1,9 @@
+def p = [:]
+node {
+    checkout scm
+    p = readProperties interpolate: true, file: 'ci/pipeline.properties'
+}
+
 pipeline {
 	agent none
 
@@ -16,14 +22,17 @@ pipeline {
 			parallel {
 				stage('Publish JDK 17 + Cassandra 3.11') {
 					when {
-						changeset "ci/openjdk17-8-cassandra-3.11/**"
+					    anyOf {
+						    changeset "ci/openjdk17-8-cassandra-3.11/**"
+						    changeset "ci/pipeline.properties"
+						}
 					}
 					agent { label 'data' }
 					options { timeout(time: 30, unit: 'MINUTES') }
 
 					steps {
 						script {
-							def image = docker.build("springci/spring-data-openjdk17-8-cassandra-3.11", "ci/openjdk17-8-cassandra-3.11/")
+							def image = docker.build("springci/spring-data-with-cassandra-3.11:${p['java.lts.tag']}", "--build-arg BASE=${p['docker.java.lts.image']} --build-arg CASSANDRA=${p['docker.cassandra.3.version']} ci/openjdk17-8-cassandra-3.11/")
 							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
 								image.push()
 							}
@@ -81,7 +90,7 @@ pipeline {
 			steps {
 				script {
 					docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-						docker.image('openjdk:17-bullseye').inside('-v $HOME:/tmp/jenkins-home') {
+						docker.image(p['docker.java.main.image']).inside(p['docker.java.inside.basic']) {
 							sh 'mkdir -p /tmp/jenkins-home'
 							sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml -Pci,artifactory ' +
 									'-Dartifactory.server=https://repo.spring.io ' +

ci/openjdk17-8-cassandra-3.11/Dockerfile

@@ -1,7 +1,10 @@
-FROM openjdk:17-bullseye
+ARG BASE
+FROM ${BASE}
+# Any ARG statements before FROM are cleared.
+ARG CASSANDRA
 
 RUN set -eux; \
-	CASSANDRA_URL='https://archive.apache.org/dist/cassandra/3.11.11/apache-cassandra-3.11.11-bin.tar.gz'; \
+	CASSANDRA_URL="https://archive.apache.org/dist/cassandra/${CASSANDRA}/apache-cassandra-${CASSANDRA}-bin.tar.gz"; \
 	sed -i -e 's/http/https/g' /etc/apt/sources.list ; \
 	curl -LfsSo /tmp/cassandra.tar.gz ${CASSANDRA_URL}; \
 		mkdir -p /opt/cassandra /opt/cassandra/data /opt/cassandra/logs; \

ci/pipeline.properties

@@ -0,0 +1,23 @@
+# Java versions
+java.main.tag=17.0.2_8-jdk
+
+# Docker container images - standard
+docker.java.main.image=eclipse-temurin:${java.main.tag}
+
+# Supported versions of MongoDB
+docker.mongodb.4.4.version=4.4.4
+docker.mongodb.5.0.version=5.0.3
+
+# Supported versions of Redis
+docker.redis.6.version=6.2.4
+
+# Supported versions of Cassandra
+docker.cassandra.3.version=3.11.11
+
+# Docker environment settings
+docker.java.inside.basic=-v $HOME:/tmp/jenkins-home
+docker.java.inside.docker=-u root -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/docker:/usr/bin/docker -v $HOME:/tmp/jenkins-home
+
+# Credentials
+docker.registry=
+docker.credentials=hub.docker.com-springbuildmaster