[Examples] Fix cluster name conflict between Elasticsearch and OpenSearch

Author: llupa

examples/compose.yaml

@@ -127,6 +127,7 @@ services:
     elasticsearch:
         image: docker.elastic.co/elasticsearch/elasticsearch:9.2.2
         environment:
+            cluster.name: 'elasticsearch-cluster'
             discovery.type: 'single-node'
             xpack.security.enabled: false
             ES_JAVA_OPTS: '-Xms512m -Xmx512m'
@@ -138,11 +139,11 @@ services:
                 soft: 65536
                 hard: 65536
         healthcheck:
-            test: [ 'CMD', 'curl', '-f', 'http://127.0.0.1:9200/_cluster/health' ]
-            interval: 30s
+            test: [ 'CMD', 'curl', '-f', 'http://127.0.0.1:9200/_cluster/health?wait_for_status=yellow&timeout=1s' ]
+            interval: 10s
             start_period: 120s
-            timeout: 20s
-            retries: 3
+            timeout: 5s
+            retries: 5
         ports:
             - '9201:9200'
 
@@ -151,9 +152,9 @@ services:
         environment:
             discovery.type: 'single-node'
             bootstrap.memory_lock: true
-            indices.requests.cache.maximum_cacheable_size: 256
-            DISABLE_SECURITY_PLUGIN: true
             OPENSEARCH_JAVA_OPTS: '-Xms512m -Xmx512m'
+        volumes:
+            - ./opensearch.yml:/usr/share/opensearch/config/opensearch.yml:ro
         ulimits:
             memlock:
                 soft: -1
@@ -162,11 +163,11 @@ services:
                 soft: 65536
                 hard: 65536
         healthcheck:
-            test: [ 'CMD', 'curl', "-f", "http://127.0.0.1:9200" ]
-            interval: 30s
+            test: [ 'CMD', 'curl', '-f', 'http://127.0.0.1:9200/_cluster/health?wait_for_status=yellow&timeout=1s' ]
+            interval: 10s
             start_period: 120s
-            timeout: 20s
-            retries: 3
+            timeout: 5s
+            retries: 5
         ports:
             - '9200:9200'
             - '9600:9600'

examples/opensearch.yml

@@ -0,0 +1,5 @@
+cluster.name: opensearch-cluster
+network.host: 0.0.0.0
+
+# Disable security plugin
+plugins.security.disabled: true