enable fielddata for _id

as of elastic/elasticsearch#49166 it is disabled by default.
The kibana task manager is upset about thi so reenable globally for now.

Author: graphaelli

scripts/modules/elastic_stack.py

@@ -551,6 +551,8 @@ def __init__(self, **options):
 
         self.environment = self.default_environment + [
             java_opts_env, "path.data=/usr/share/elasticsearch/data/" + data_dir]
+        if self.at_least_version("8.0"):
+            self.environment.append("indices.id_field_data.enabled=true")
         if not self.oss:
             xpack_security_enabled = "false"
             if self.xpack_secure:

scripts/tests/localsetup_tests.py

@@ -861,6 +861,7 @@ def test_start_master_default(self):
                     path.repo=/usr/share/elasticsearch/data/backups,
                     'ES_JAVA_OPTS=-XX:UseAVX=2 -Xms1g -Xmx1g',
                     path.data=/usr/share/elasticsearch/data/8.0.0,
+                    indices.id_field_data.enabled=true,
                     xpack.security.authc.anonymous.roles=remote_monitoring_collector,
                     xpack.security.authc.realms.file.file1.order=0,
                     xpack.security.authc.realms.native.native1.order=1,