[BUILD] Rework build cache authentication on CI (elastic#122296) (elastic#122620)

This is required to update to newer version of gradle enterprise and the gradle enterprise plugin.

(cherry picked from commit 9c19538)

# Conflicts:
#	.ci/init.gradle

Author: breskeby

.buildkite/hooks/pre-command

@@ -44,6 +44,9 @@ export GRADLE_BUILD_CACHE_USERNAME
 GRADLE_BUILD_CACHE_PASSWORD=$(vault read -field=password secret/ci/elastic-elasticsearch/migrated/gradle-build-cache)
 export GRADLE_BUILD_CACHE_PASSWORD
 
+DEVELOCITY_ACCESS_KEY="gradle-enterprise.elastic.co=$(vault read -field=accesskey secret/ci/elastic-elasticsearch/migrated/gradle-build-cache)"
+export DEVELOCITY_ACCESS_KEY
+
 BUILDKITE_API_TOKEN=$(vault read -field=token secret/ci/elastic-elasticsearch/buildkite-api-token)
 export BUILDKITE_API_TOKEN
 

.ci/init.gradle

@@ -1,126 +1,22 @@
-import com.bettercloud.vault.VaultConfig
-import com.bettercloud.vault.Vault
-
-initscript {
-  repositories {
-    mavenCentral()
-  }
-  dependencies {
-    classpath 'com.bettercloud:vault-java-driver:4.1.0'
-  }
-}
-
-boolean USE_ARTIFACTORY = false
-
-if (System.getenv('VAULT_ADDR') == null) {
-  // When trying to reproduce errors outside of CI, it can be useful to allow this to just return rather than blowing up
-  if (System.getenv('CI') == null) {
-    return
-  }
-
-  throw new GradleException("You must set the VAULT_ADDR environment variable to use this init script.")
-}
-
-if (System.getenv('VAULT_ROLE_ID') == null && System.getenv('VAULT_SECRET_ID') == null && System.getenv('VAULT_TOKEN') == null) {
-    // When trying to reproduce errors outside of CI, it can be useful to allow this to just return rather than blowing up
-  if (System.getenv('CI') == null) {
-    return
-  }
-
-  throw new GradleException("You must set either the VAULT_ROLE_ID and VAULT_SECRET_ID environment variables, " +
-    "or the VAULT_TOKEN environment variable to use this init script.")
-}
-
-final String vaultPathPrefix = System.getenv('VAULT_ADDR') ==~ /.+vault-ci.+\.dev.*/ ? "secret/ci/elastic-elasticsearch/migrated" : "secret/elasticsearch-ci"
-
-final String vaultToken = System.getenv('VAULT_TOKEN') ?: new Vault(
-  new VaultConfig()
-    .address(System.env.VAULT_ADDR)
-    .engineVersion(1)
-    .build()
-)
-  .withRetries(5, 1000)
-  .auth()
-  .loginByAppRole("approle", System.env.VAULT_ROLE_ID, System.env.VAULT_SECRET_ID)
-  .getAuthClientToken()
-
-final Vault vault = new Vault(
-  new VaultConfig()
-    .address(System.env.VAULT_ADDR)
-    .engineVersion(1)
-    .token(vaultToken)
-    .build()
-)
-  .withRetries(5, 1000)
-
-
-if (USE_ARTIFACTORY) {
-  final Map<String, String> artifactoryCredentials = vault.logical()
-    .read("${vaultPathPrefix}/artifactory.elstc.co")
-    .getData()
-  logger.info("Using elastic artifactory repos")
-  Closure configCache = {
-    return {
-      name "artifactory-gradle-release"
-      url "https://artifactory.elstc.co/artifactory/gradle-release"
-      credentials {
-        username artifactoryCredentials.get("username")
-        password artifactoryCredentials.get("token")
-      }
-    }
-  }
-  settingsEvaluated { settings ->
-    settings.pluginManagement {
-      repositories {
-        maven configCache()
-      }
-    }
-  }
-  projectsLoaded {
-    allprojects {
-      buildscript {
-        repositories {
-          maven configCache()
-        }
-      }
-      repositories {
-        maven configCache()
-      }
-    }
-  }
-}
+final String buildCacheUrl = System.getProperty('org.elasticsearch.build.cache.url')
+final boolean buildCachePush = Boolean.valueOf(System.getProperty('org.elasticsearch.build.cache.push', 'false'))
 
 gradle.settingsEvaluated { settings ->
   settings.pluginManager.withPlugin("com.gradle.develocity") {
     settings.develocity {
-      server = 'https://gradle-enterprise.elastic.co'
+      server = "https://gradle-enterprise.elastic.co"
     }
-  }
-}
-
-
-final String buildCacheUrl = System.getProperty('org.elasticsearch.build.cache.url')
-final boolean buildCachePush = Boolean.valueOf(System.getProperty('org.elasticsearch.build.cache.push', 'false'))
-
-if (buildCacheUrl) {
-  final Map<String, String> buildCacheCredentials = System.getenv("GRADLE_BUILD_CACHE_USERNAME") ? [:] : vault.logical()
-    .read("${vaultPathPrefix}/gradle-build-cache")
-    .getData()
-  gradle.settingsEvaluated { settings ->
-    settings.buildCache {
-      local {
-        // Disable the local build cache in CI since we use ephemeral workers and it incurs an IO penalty
-        enabled = false
-      }
-      remote(HttpBuildCache) {
-        url = buildCacheUrl
-        push = buildCachePush
-        credentials {
-          username = System.getenv("GRADLE_BUILD_CACHE_USERNAME") ?: buildCacheCredentials.get("username")
-          password = System.getenv("GRADLE_BUILD_CACHE_PASSWORD") ?: buildCacheCredentials.get("password")
+    if (buildCacheUrl) {
+      settings.buildCache {
+        local {
+          // Disable the local build cache in CI since we use ephemeral workers and it incurs an IO penalty
+          enabled = false
+        }
+        remote(settings.develocity.buildCache) {
+          enabled = true
+          push = buildCachePush
         }
       }
     }
   }
-}
-
+}

build-conventions/settings.gradle

@@ -6,6 +6,11 @@
  * your election, the "Elastic License 2.0", the "GNU Affero General Public
  * License v3.0 only", or the "Server Side Public License, v 1".
  */
+
+plugins {
+  id "com.gradle.develocity" version "3.18.1"
+}
+
 rootProject.name = 'build-conventions'
 
 dependencyResolutionManagement {

build-tools-internal/settings.gradle

@@ -8,6 +8,10 @@ pluginManagement {
     includeBuild "../build-tools"
 }
 
+plugins {
+  id "com.gradle.develocity" version "3.18.1"
+}
+
 dependencyResolutionManagement {
     versionCatalogs {
         buildLibs {

build-tools/settings.gradle

@@ -9,7 +9,9 @@
 pluginManagement {
     includeBuild "../build-conventions"
 }
-
+plugins {
+  id "com.gradle.develocity" version "3.18.1"
+}
 include 'reaper'
 
 dependencyResolutionManagement {