-`ansible_host` is the IP address of the target node that you want the Ansible playbook to install OpenSearch and OpenSearch DashBoards on.
-`ip` is the IP address that you want OpenSearch and OpenSearch DashBoards to bind to. You can specify the private IP of the target node, or localhost, or 0.0.0.0.
3. You can modify the default configuration values in the `inventories/opensearch/group_vars/all/all.yml` file. For example, you can increase the Java memory heap size:
2. After the deployment process is complete, you can access OpenSearch and OpenSearch Dashboards with the username `admin` and the password that you set for the `admin_password` variable.
If you bind `ip` to a private IP or localhost, make sure you're logged into the server that deployed the playbook to access OpenSearch and OpenSearch Dashboards: