Add Integration tests to Auditbeat CI pipeline

Add an integration test step for auditbeat, as part of the extended test suite.

.buildkite/auditbeat/auditbeat-pipeline.yml

@@ -105,6 +105,26 @@ steps:
           imagePrefix: "${IMAGE_MACOS_X86_64}"
         artifact_paths: "auditbeat/build/*.xml"
 
+      - label: ":linux:-{{matrix.image}} Integration Tests"
+        key: "linux-integration"
+        command: ".buildkite/auditbeat/scripts/integ-tests.sh"
+        notify:
+          - github_commit_status:
+              context: "auditbeat/Extended: Linux Integration Tests"
+        agents:
+          provider: "gcp"
+          image: "{{matrix.image}}"
+          machine_type: "c3-standard-4"
+          disk_size: 100
+          disk_type: "pd_ssd"
+        matrix:
+          setup:
+            image:
+              - "${IMAGE_UBUNTU_X86_64}"
+        artifact_paths:
+          - "auditbeat/build/*.xml"
+          - "auditbeat/build/*.json"
+
   - group: "Windows Extended Testing"
     key: "extended-tests-win"
     if: build.env("GITHUB_PR_TRIGGER_COMMENT") == "auditbeat for windows" || build.env("GITHUB_PR_LABELS") =~ /.*windows.*/

.buildkite/auditbeat/scripts/integ-tests.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+source .buildkite/env-scripts/linux-env.sh
+
+echo "--- Running Integration Tests"
+sudo chmod -R go-w auditbeat/
+
+cd auditbeat
+umask 0022
+mage build integTest