Issue checkstyle#6359: switch Jenkins from Hyper.sh to AWS EC2 spot i…

…nstances

Jenkinsfile

@@ -1,31 +1,11 @@
 // Node label that specifies on which slave(s) the job should run
 BUILD_SLAVES_LABEL = 'build-servers'
 
-DEFAULT_MAVEN_OPTS = "-Xss256k -Xmx300m -XX:MaxMetaspaceSize=80m -XX:MaxMetaspaceExpansion=10m " +
-                     "-Dmaven.test.failure.ignore=false -XshowSettings:vm " + 
-                     "-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
-
 // 'sha1' envvar is injected by Jenkins GHPRB plugin in case if build is started by pull request
 IS_TRIGGERED_BY_PR = env.sha1?.trim()
 
 GIT_BRANCH = '<unknown>'
 
-enum HyperSize {
-  S4("s4"),
-  M1("m1"),
-  M2("m2");
-
-  private size;
-
-  HyperSize(String size) {
-    this.size = size
-  }
-
-  public String toString() {
-    return size;
-  }
-}
-
 // Text colours definition
 def GREEN( String msg ) { return "\u001B[32m${msg}\u001B[0m" }
 def YELLOW( String msg ) { return "\u001B[33m${msg}\u001B[0m" }
@@ -43,42 +23,6 @@ def getCauseDescription(def build) {
   return getCause(build).shortDescription
 }
 
-// See more about Hyper container sizes at https://hyper.sh/pricing.html
-def runOnHyper(HyperSize size, String mavenOpts, String command) {
-
-  String name = UUID.randomUUID()
-
-  image = 'checkstyle/maven-builder-image:jdk-8u162b12-maven-3.5.3-groovy-2.4.15'
-  containerTTL = 1800 // sec
-
-  echo GREEN("To try this build locally, execute the following command: [ $command ]")
-
-  // 1. Start empty Hyper container with timeout and let it put it's id to the file for further use
-  retry(3) {
-    sh "hyper -l=warn run -d --name '${name}' --size=${size.toString()} --cidfile ${name}.cid " +
-       " --noauto-volume --restart=no -v \$(pwd):/usr/local/checkstyle/ " + 
-       " -e MAVEN_OPTS='${mavenOpts}' ${image} sleep '${containerTTL}'"
-  }
-
-  // 2. Run the build command inside the container
-  sh "hyper -l=info exec -i '${name}' bash -c '${command}'"
-
-  // 3. Cleanup the container as soon as after build finish
-  sh "hyper rm -fv '${name}' | cat"
-}
-
-def runOnHyperS4(String command) {
-  runOnHyper(HyperSize.S4, DEFAULT_MAVEN_OPTS, command)
-}
-
-def runOnHyperM1(String command) {
-  runOnHyper(HyperSize.M1, DEFAULT_MAVEN_OPTS, command)
-}
-
-def runOnHyperM2(String command) {
-  runOnHyper(HyperSize.M2, DEFAULT_MAVEN_OPTS, command)
-}
-
 pipeline {
 
   agent {
@@ -108,6 +52,8 @@ pipeline {
 
         // Debug: print all the build envvars
         // echo sh(returnStdout: true, script: 'env')
+
+        sh "mvn --version"
       }
     }
 
@@ -129,14 +75,9 @@ pipeline {
 
     stage('Build') {
       parallel {
-        stage('Compile') {
-          steps {
-            runOnHyperS4("mvn -B compile")
-          }
-        }
         stage('Package') {
           steps {
-            runOnHyperM1("mvn -B package")
+            sh "mvn -B package"
           }
         }
       }
@@ -145,9 +86,6 @@ pipeline {
 
   post {
     always {
-      // Cleanup any Hyper.sh containers left by the build, if any
-      sh "ls | grep '.cid' | xargs -I {} bash -c 'cat {}; echo' | xargs -I {} hyper rm -fv {} | cat"
-
       // Clean up workspace
       deleteDir()
     }