Externalize build properties.

Closes #2103.

CI.adoc

@@ -1,43 +0,0 @@
-= Continuous Integration
-
-image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-rest%2Fmain&subject=Moore%20(main)[link=https://jenkins.spring.io/view/SpringData/job/spring-data-rest/]
-image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-rest%2F3.1.x&subject=Lovelace%20(3.1.x)[link=https://jenkins.spring.io/view/SpringData/job/spring-data-rest/]
-image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-rest%2F2.6.x&subject=Ingalls%20(2.6.x)[link=https://jenkins.spring.io/view/SpringData/job/spring-data-rest/]
-
-== Running CI tasks locally
-
-Since this pipeline is purely Docker-based, it's easy to:
-
-* Debug what went wrong on your local machine.
-* Test out a a tweak to your `test.sh` script before sending it out.
-* Experiment against a new image before submitting your pull request.
-
-All of these use cases are great reasons to essentially run what the CI server does on your local machine.
-
-IMPORTANT: To do this you must have Docker installed on your machine.
-
-1. `docker run -it --mount type=bind,source="$(pwd)",target=/spring-data-rest-github openjdk:17 /bin/bash`
-+
-This will launch the Docker image and mount your source code at `spring-data-rest-github`.
-+
-2. `cd spring-data-rest-github`
-+
-Next, run your tests from inside the container:
-+
-3. `./mvnw clean dependency:list test -Dsort` (or whatever profile you need to test out)
-
-Since the container is binding to your source, you can make edits from your IDE and continue to run build jobs.
-
-If you test building the artifact, do this:
-
-1. `docker run -it --mount type=bind,source="$(pwd)",target=/spring-data-rest-github openjdk:17 /bin/bash`
-+
-This will launch the Docker image and mount your source code at `spring-data-rest-github`.
-+
-2. `cd spring-data-rest-github`
-+
-Next, try to package everything up from inside the container:
-+
-3. `./mvnw -Pci,snapshot -Dmaven.test.skip=true clean package`
-
-NOTE: Docker containers can eat up disk space fast! From time to time, run `docker system prune` to clean out old images.

Jenkinsfile

@@ -1,3 +1,9 @@
+def p = [:]
+node {
+	checkout scm
+	p = readProperties interpolate: true, file: 'ci/pipeline.properties'
+}
+
 pipeline {
 	agent none
 
@@ -13,28 +19,7 @@ pipeline {
 	}
 
 	stages {
-		stage("Docker images") {
-			parallel {
-				stage('Publish JDK 17/ + MongoDB 4.4') {
-					when {
-						changeset "ci/openjdk17-mongodb-4.4/**"
-					}
-					agent { label 'data' }
-					options { timeout(time: 30, unit: 'MINUTES') }
-
-					steps {
-						script {
-							def image = docker.build("springci/spring-data-rest-openjdk17-with-mongodb-4.4", "ci/openjdk17-mongodb-4.4/")
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-								image.push()
-							}
-						}
-					}
-				}
-			}
-		}
-
-		stage("test: baseline (JDK 17)") {
+		stage("test: baseline (main)") {
 			when {
 				beforeAgent(true)
 				anyOf {
@@ -47,12 +32,12 @@ pipeline {
 			}
 			options { timeout(time: 30, unit: 'MINUTES') }
 			environment {
-				ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
+				ARTIFACTORY = credentials("${p['artifactory.credentials']}")
 			}
 			steps {
 				script {
-					docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-						docker.image('springci/spring-data-rest-openjdk17-with-mongodb-4.4:latest').inside('-v $HOME:/tmp/jenkins-home') {
+					docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
+						docker.image("springci/spring-data-with-mongodb-4.4:${p['java.main.tag']}").inside(p['docker.java.inside.basic']) {
 							sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
 							sh 'mongod --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
 							sh 'sleep 10'
@@ -79,13 +64,13 @@ pipeline {
 			options { timeout(time: 20, unit: 'MINUTES') }
 
 			environment {
-				ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
+				ARTIFACTORY = credentials("${p['artifactory.credentials']}")
 			}
 
 			steps {
 				script {
-					docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-						docker.image('openjdk:17').inside('-v $HOME:/tmp/jenkins-home') {
+					docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
+						docker.image(p['docker.java.main.image']).inside(p['docker.java.inside.basic']) {
 							sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml -Pci,artifactory ' +
 									'-Dartifactory.server=https://repo.spring.io ' +
 									"-Dartifactory.username=${ARTIFACTORY_USR} " +

ci/openjdk17-mongodb-4.4/Dockerfile

@@ -1,17 +0,0 @@
-FROM openjdk:17-bullseye
-
-ENV TZ=Etc/UTC
-ENV DEBIAN_FRONTEND=noninteractive
-
-RUN sed -i -e 's/http/https/g' /etc/apt/sources.list
-
-RUN set -eux; \
-	apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2 ; \
-	apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv 656408E390CFB1F5 ; \
-	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.4 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.4.list; \
-	echo ${TZ} > /etc/timezone;
-
-RUN apt-get update ; \
-	apt-get install -y mongodb-org=4.4.4 mongodb-org-server=4.4.4 mongodb-org-shell=4.4.4 mongodb-org-mongos=4.4.4 mongodb-org-tools=4.4.4 ; \
-	apt-get clean; \
-	rm -rf /var/lib/apt/lists/*;

ci/pipeline.properties

@@ -0,0 +1,24 @@
+# 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
+artifactory.credentials=02bd1690-b54f-4c9f-819d-a77cb7a9822c