simplify docker-compose.yml (opensearch-project#763)

* simplify docker-compose.yml

Signed-off-by: YANGDB <[email protected]>

* update docs regarding security

Signed-off-by: YANGDB <[email protected]>

* update docs security doc and restrictions

Signed-off-by: YANGDB <[email protected]>

---------

Signed-off-by: YANGDB <[email protected]>

Author: YANG-DB

.env

@@ -1,5 +1,3 @@
 # version for opensearch & opensearch-dashboards docker image
-VERSION=2.6.0
-# auth details - change according to your system
-USER=admin
-PASSWORD=admin
+VERSION=2.9.0
+

Using-Docker.md

@@ -6,7 +6,7 @@ First the plugin must be build using the `yarn build` command.
 
 Once this build was completed - the expected zip location of the plugin is `./build/observabilityDashboards-?.?.?.zip` where as the `?.?.?` represents the version of this dashboard plugin.
 
-> Note that the plugin version must correspond to the OpenSearch-Dashboards version - this information appears [here](opensearch_dashboards.json)
+> Note: that the plugin version must correspond to the OpenSearch-Dashboards version - this information appears [here](opensearch_dashboards.json)
 > 
 
 Once the build is completed, make sure to overide the [Dockerfile](Dockerfile) target zip file with the exact name 
@@ -16,17 +16,22 @@ RUN /usr/share/opensearch-dashboards/bin/opensearch-dashboards-plugin install fi
 ```
 
 ## Docker imageVersion
-The docker images used by this file are all referencing the [.env](.env) environment file that contains the version and user/password fields that need to be changed to match your own system. 
+The docker images used by this file are all referencing the [.env](.env) environment file that contains the version that needed to be changed to match your own system. 
 
 ## Run the docker image build
 To build the docker image use the next command:
 > `docker build --build-arg VERSION=$(grep VERSION .env | cut -d '=' -f2) -t your_image_name .`
 
 ## Run the docker compose
 The [docker-compose](docker-compose.yml) file represents a simple assembly of an OpenSearch cluster with two nodes and an opensearch dashboard that has the updated image with the latest changes in this plugin.
+> This is a test only docker compose that should not be used for production purpose - for such use cases please review this [link](https://opensearch.org/docs/latest/install-and-configure/install-opensearch/docker/)
 
+### Option 1 (All from docker)
 run `docker compose up -d` to start the services and once the service is up and running you can start testing the changes.
 
+### Option 2 (Combined Docker & Dashboard)
+run `docker compose up -d opensearch` to only run the OpenSearch engine - in this case the dashboard has to be run manualy using `yarn start --no-base-path` command in the root dashboards path `./OpenSearch-Dashboards/`
+
 > Note that the OpenSearch version also must correspond to the OpenSearch-Dashboards version
 
 ## Accessing the Dashboard
@@ -37,5 +42,6 @@ The dashboard service uses port `localhost:5601` for access and this was already
 ```
 
 ## Security Notice
-The default User:Password for this demo test is embedded within the  [.env](.env) environment file - pay attention not to use this configuration in a production or any environment that may contain
-confident or personal information without first changing the security definition for accessing the servers.
+There is no security plugin and authentication definitions for this development test demo - pay attention not to use this configuration in a production or any environment that may contain
+confident or personal information without first changing the security definition for accessing the servers - for production use cases please review this [link](https://opensearch.org/docs/latest/install-and-configure/install-opensearch/docker/)
+

docker-compose.yml

@@ -1,7 +1,5 @@
 # Copyright The OpenTelemetry Authors
 # SPDX-License-Identifier: Apache-2.0
-
-
 version: '3.9'
 x-default-logging: &logging
   driver: "json-file"
@@ -10,64 +8,46 @@ x-default-logging: &logging
     max-file: "2"
 
 volumes:
-  opensearch-data1:
-  opensearch-data2:
+  opensearch-data:
 
 networks:
   default:
     name: opensearch-dashboards-demo
     driver: bridge
 
 services:
-  # OpenSearch store - node1
-  opensearch-node1: # This is also the hostname of the container within the Docker network (i.e. https://opensearch-node1/)
-    image: opensearchproject/opensearch:${VERSION} # Specifying the latest available image - modify if you want a specific version
-    container_name: opensearch-node1
-    environment:
-      - cluster.name=opensearch-cluster # Name the cluster
-      - node.name=opensearch-node1 # Name the node that will run in this container
-      - discovery.seed_hosts=opensearch-node1,opensearch-node2 # Nodes to look for when discovering the cluster
-      - cluster.initial_cluster_manager_nodes=opensearch-node1,opensearch-node2 # Nodes eligible to serve as cluster manager
-      - bootstrap.memory_lock=true # Disable JVM heap memory swapping
-      - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m" # Set min and max JVM heap sizes to at least 50% of system RAM
-    ulimits:
-      memlock:
-        soft: -1 # Set memlock to unlimited (no soft or hard limit)
-        hard: -1
-      nofile:
-        soft: 65536 # Maximum number of open files for the opensearch user - set to at least 65536
-        hard: 65536
-    volumes:
-      - opensearch-data1:/usr/share/opensearch/data # Creates volume called opensearch-data1 and mounts it to the container
-    healthcheck:
-      test: ["CMD", "curl", "-f", "https://opensearch-node1:9200/_cluster/health?wait_for_status=yellow", "-ku ${USER}:${PASSWORD}"]
-      interval: 5s
-      timeout: 25s
-      retries: 4
-    ports:
-      - "9200:9200"
-      - "9600:9600"
-
-  # OpenSearch store - node2
-  opensearch-node2:
-    image: opensearchproject/opensearch:${VERSION} # This should be the same image used for opensearch-node1 to avoid issues
-    container_name: opensearch-node2
+  # OpenSearch store - node (not for production - no security - only for test purpose )
+  opensearch:
+    image: opensearchstaging/opensearch:${VERSION}
+    container_name: opensearch
     environment:
       - cluster.name=opensearch-cluster
-      - node.name=opensearch-node2
-      - discovery.seed_hosts=opensearch-node1,opensearch-node2
-      - cluster.initial_cluster_manager_nodes=opensearch-node1,opensearch-node2
+      - node.name=opensearch
+      - discovery.seed_hosts=opensearch
+      - cluster.initial_cluster_manager_nodes=opensearch
       - bootstrap.memory_lock=true
       - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m"
+      - "DISABLE_INSTALL_DEMO_CONFIG=true"
+      - "DISABLE_SECURITY_PLUGIN=true"
     ulimits:
       memlock:
         soft: -1
         hard: -1
       nofile:
-        soft: 65536
+        soft: 65536 # Maximum number of open files for the opensearch user - set to at least 65536
         hard: 65536
     volumes:
-      - opensearch-data2:/usr/share/opensearch/data
+      - opensearch-data:/usr/share/opensearch/data # Creates volume called opensearch-data1 and mounts it to the container
+    ports:
+      - 9200:9200
+      - 9600:9600
+    expose:
+      - "9200"
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:9200/_cluster/health?wait_for_status=yellow"]
+      interval: 20s
+      timeout: 10s
+      retries: 10
 
   # OpenSearch store - dashboard
   opensearch-dashboards:
@@ -85,6 +65,5 @@ services:
     environment:
       OPENSEARCH_HOSTS: '["https://opensearch-node1:9200","https://opensearch-node2:9200"]' # Define the OpenSearch nodes that OpenSearch Dashboards will query
     depends_on:
-      - opensearch-node1
-      - opensearch-node2
+      - opensearch