[8.16] Only run quick checks for changes to renovate.json (elastic#20…

…3153) (elastic#204673)

# Backport

This will backport the following commits from `main` to `8.16`:
- [Only run quick checks for changes to renovate.json
(elastic#203153)](elastic#203153)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Larry
Gregory","email":"larry.gregory@elastic.co"},"sourceCommit":{"committedDate":"2024-12-17T13:59:43Z","message":"Only
run quick checks for changes to renovate.json (elastic#203153)\n\n##
Summary\n\nIntroduces a new `renovate` CI pipeline to only run quick
checks for PRs\nwhich only adjust the `renovate.json` configuration
file.","sha":"591d640b1fe21dc847338a535c142153f2b50e80","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Team:Operations","Team:Security","release_note:skip","v9.0.0","backport:prev-major"],"title":"Only
run quick checks for changes to
renovate.json","number":203153,"url":"https://github.com/elastic/kibana/pull/203153","mergeCommit":{"message":"Only
run quick checks for changes to renovate.json (elastic#203153)\n\n##
Summary\n\nIntroduces a new `renovate` CI pipeline to only run quick
checks for PRs\nwhich only adjust the `renovate.json` configuration
file.","sha":"591d640b1fe21dc847338a535c142153f2b50e80"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/203153","number":203153,"mergeCommit":{"message":"Only
run quick checks for changes to renovate.json (elastic#203153)\n\n##
Summary\n\nIntroduces a new `renovate` CI pipeline to only run quick
checks for PRs\nwhich only adjust the `renovate.json` configuration
file.","sha":"591d640b1fe21dc847338a535c142153f2b50e80"}}]}] BACKPORT-->

Co-authored-by: Larry Gregory <larry.gregory@elastic.co>

.buildkite/pipelines/pull_request/renovate.yml

@@ -0,0 +1,20 @@
+steps:
+  - command: .buildkite/scripts/lifecycle/pre_build.sh
+    label: Pre-Build
+    timeout_in_minutes: 10
+    agents:
+      machineType: n2-standard-2
+
+  - wait
+
+  - command: .buildkite/scripts/steps/renovate.sh
+    label: 'Renovate validation'
+    agents:
+      machineType: n2-highcpu-8
+      preemptible: true
+    key: renovate_validation
+    timeout_in_minutes: 60
+    retry:
+      automatic:
+        - exit_status: '-1'
+          limit: 3

.buildkite/scripts/pipelines/pull_request/pipeline.ts

@@ -39,6 +39,14 @@ const getPipeline = (filename: string, removeSteps = true) => {
       return;
     }
 
+    const onlyRunQuickChecks = await areChangesSkippable([/^renovate\.json$/], REQUIRED_PATHS);
+    if (onlyRunQuickChecks) {
+      pipeline.push(getPipeline('.buildkite/pipelines/pull_request/renovate.yml', false));
+      pipeline.push(getPipeline('.buildkite/pipelines/pull_request/post_build.yml'));
+      console.log('Isolated changes to renovate.json. Skipping main PR pipeline.');
+      return;
+    }
+
     pipeline.push(getAgentImageConfig({ returnYaml: true }));
     pipeline.push(getPipeline('.buildkite/pipelines/pull_request/base.yml', false));
 

.buildkite/scripts/steps/renovate.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+echo '--- Renovate: validation'
+.buildkite/scripts/steps/checks/renovate.sh