[kbn-es] Always use bundled JDK when starting Elasticsearch (#89437)

packages/kbn-es/src/cli_commands/snapshot.js

@@ -62,8 +62,6 @@ exports.run = async (defaults = {}) => {
       await cluster.extractDataDirectory(installPath, options.dataArchive);
     }
 
-    options.bundledJDK = true;
-
     await cluster.run(installPath, options);
   }
 };

packages/kbn-es/src/cluster.js

@@ -279,7 +279,7 @@ exports.Cluster = class Cluster {
       env: {
         ...(installPath ? { ES_TMPDIR: path.resolve(installPath, 'ES_TMPDIR') } : {}),
         ...process.env,
-        ...(options.bundledJDK ? { JAVA_HOME: '' } : {}),
+        JAVA_HOME: '', // By default, we want to always unset JAVA_HOME so that the bundled JDK will be used
         ...(options.esEnvVars || {}),
       },
       stdio: ['ignore', 'pipe', 'pipe'],

packages/kbn-es/src/install/archive.js

@@ -34,7 +34,6 @@ exports.installArchive = async function installArchive(archive, options = {}) {
     basePath = BASE_PATH,
     installPath = path.resolve(basePath, path.basename(archive, '.tar.gz')),
     log = defaultLog,
-    bundledJDK = false,
     esArgs = [],
   } = options;
 
@@ -64,7 +63,7 @@ exports.installArchive = async function installArchive(archive, options = {}) {
     await appendToConfig(installPath, 'xpack.security.enabled', 'true');
 
     await appendToConfig(installPath, 'xpack.license.self_generated.type', license);
-    await configureKeystore(installPath, log, bundledJDK, [
+    await configureKeystore(installPath, log, [
       ['bootstrap.password', password],
       ...parseSettings(esArgs, { filter: SettingsFilter.SecureOnly }),
     ]);
@@ -89,20 +88,11 @@ async function appendToConfig(installPath, key, value) {
  *
  * @param {String} installPath
  * @param {ToolingLog} log
- * @param {boolean} bundledJDK
  * @param {Array<[string, string]>} secureSettings List of custom Elasticsearch secure settings to
  * add into the keystore.
  */
-async function configureKeystore(
-  installPath,
-  log = defaultLog,
-  bundledJDK = false,
-  secureSettings
-) {
-  const env = {};
-  if (bundledJDK) {
-    env.JAVA_HOME = '';
-  }
+async function configureKeystore(installPath, log = defaultLog, secureSettings) {
+  const env = { JAVA_HOME: '' };
   await execa(ES_KEYSTORE_BIN, ['create'], { cwd: installPath, env });
 
   for (const [secureSettingName, secureSettingValue] of secureSettings) {

packages/kbn-es/src/install/snapshot.js

@@ -61,7 +61,6 @@ exports.installSnapshot = async function installSnapshot({
   basePath = BASE_PATH,
   installPath = path.resolve(basePath, version),
   log = defaultLog,
-  bundledJDK = true,
   esArgs,
 }) {
   const { downloadPath } = await exports.downloadSnapshot({
@@ -78,7 +77,6 @@ exports.installSnapshot = async function installSnapshot({
     basePath,
     installPath,
     log,
-    bundledJDK,
     esArgs,
   });
 };