fix: Support Elasticsearch 9.x (#881)

Closes #860

Co-authored-by: heartbleed1337 <heartbleed@notapplicable.com>

Author: heartbleed1337

modules/elasticsearch/testcontainers/elasticsearch/__init__.py

@@ -45,7 +45,7 @@ def _environment_by_version(version: int) -> dict[str, str]:
         return {"discovery.zen.minimum_master_nodes": "1"}
     elif version == 7:
         return {}
-    elif version == 8:
+    elif version in {8, 9}:
         # Elasticsearch uses https now by default. However, our readiness
         # check uses http, which does not work. Hence we disable security
         # which should not be an issue for our context

modules/elasticsearch/tests/test_elasticsearch.py

@@ -7,7 +7,7 @@
 
 
 # The versions below should reflect the latest stable releases
-@pytest.mark.parametrize("version", ["7.17.18", "8.12.2"])
+@pytest.mark.parametrize("version", ["7.17.18", "8.12.2", "9.1.4"])
 def test_docker_run_elasticsearch(version):
     with ElasticSearchContainer(f"elasticsearch:{version}", mem_limit="3G") as es:
         resp = urllib.request.urlopen(f"http://{es.get_container_host_ip()}:{es.get_exposed_port(es.port)}")