Hi,
About your issue:
The OVA you installed contains the following components:
CentOS 7
Wazuh manager 4.3.10
Wazuh indexer 4.3.10
Filebeat-OSS 7.10.2
Wazuh dashboard
So it is not necessary to install Elastic. It is not worth using the OVA if you are going to uninstall and install half of the modules.
But if you want to install it anyway, I would recommend you to make a clean installation of it, following the documentation you mentioned before.
As far I can see on the image you shared, you have some issues with the certificates.
If you want to continue with this installation, make sure you followed the steps correctly (mainly
here) and the
Wazuh Indexer was uninstalled before.
About Wazuh and Elastic Stack:
OpenSearch/Wazuh-Indexer is a package that contains
ElasticSearch plus extra add-ons totally free, it works with the
Dashboard/Wazuh-Dashboard which is
Kibana with extra free add-ons also.
So basically here we are talking about Free vs Non-Free options.
Both options are production-ready products, reliable, and have a good team to support them. Regarding features we would need to check our needs and our budget, not always more is better, but sometimes less is.
If you can afford the Platinum or Enterprise license of ELK, would be a great option, not only all features but also support to help you get on track.
Both are great options, if you are starting, I would go with OpenSearch, moving to ElasticStack is possible in the future if it's really needed, but not the other way around, migrating from Elastic Stack to OpenSearch is quite simple but it's not feasible the other way around.
I hope a helped you, let me know if you need more help with this.
Regards,
Mateo