Add Jenkinsfile build normal and squashed images

Author: brycekahle

Jenkinsfile

@@ -0,0 +1,40 @@
+pipeline {
+  agent any
+
+  stages {
+    stage("Build") {
+      steps {
+        sh "docker build -t netlify/build:latest ."
+        sh "docker build --squash -t netlify/build:squash ."
+      }
+    }
+
+    stage("Push") {
+      when {
+        branch 'master'
+      }
+      failFast true
+      parallel {
+          stage("Push Squash") {
+              steps {
+                  sh "docker push netlify/build:squash"
+              }
+          }
+          stage("Push Latest") {
+              steps {
+                  sh "docker push netlify/build:squash"
+              }
+          }
+      }
+    }
+  }
+
+  post {
+    failure {
+      slackSend color: "danger", message: "Build failed - ${env.JOB_NAME} ${env.BUILD_NUMBER} (<${env.BUILD_URL}/console|Open>)"
+    }
+    success {
+      slackSend color: "good", message: "Build succeeded - ${env.JOB_NAME} ${env.BUILD_NUMBER} (<${env.BUILD_URL}/console|Open>)"
+    }
+  }
+}