Merge pull request #992 from Yury-Fridlyand/update-docker-compose

Update `docker-compose.yml`

_includes/downloads/opensearch-docker.markdown

@@ -3,7 +3,7 @@ The best way to try out OpenSearch is to use [Docker Compose](https://docs.docke
 1. Set up your Docker host environment 
   - **macOS & Windows**: In Docker _Preferences_ > _Resources_, set RAM to at least 4 GB.
   - **Linux**: Ensure `vm.max_map_count` is set to at least 262144 as per the [documentation](/docs/opensearch/install/important-settings/).
-2. Download [docker-compose.yml](https://opensearch.org/samples/docker-compose.yml) into your desired directory
+2. Download [docker-compose.yml](/samples/docker-compose.yml) into your desired directory
 3. Run `docker-compose up`
 4. Have a nice coffee while everything is downloading and starting up
 5. Navigate to [http://localhost:5601/](http://localhost:5601) for OpenSearch Dashboards

samples/docker-compose.yml

@@ -9,7 +9,7 @@ services:
       - cluster.name=opensearch-cluster
       - node.name=opensearch-node1
       - discovery.seed_hosts=opensearch-node1,opensearch-node2
-      - cluster.initial_master_nodes=opensearch-node1,opensearch-node2
+      - cluster.initial_cluster_manager_nodes=opensearch-node1,opensearch-node2
       - bootstrap.memory_lock=true # along with the memlock settings below, disables swapping
       - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m" # minimum and maximum Java heap size, recommend setting both to 50% of system RAM
     ulimits:
@@ -33,7 +33,7 @@ services:
       - cluster.name=opensearch-cluster
       - node.name=opensearch-node2
       - discovery.seed_hosts=opensearch-node1,opensearch-node2
-      - cluster.initial_master_nodes=opensearch-node1,opensearch-node2
+      - cluster.initial_cluster_manager_nodes=opensearch-node1,opensearch-node2
       - bootstrap.memory_lock=true
       - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m"
     ulimits: