Securityadmin.sh errors when connecting opensearch through http

[pablo]

@bob96589 Have a look at this comment in regards to changes in OpenSearch v2.0.0

Securityadmin.sh uses http port 9200 and not transport port 9300 in OpenSearch 2.0.0

@asfoorial As per the release notes of version 2.0 the TransportClient authentication/authorisation have been removed. That has affected the way the securityadmin.sh communicates with the cluster. Now securityadmin.sh requires HTTP connection - port 9200. The documentation still refers to the old configuration. It will be reported to the dev team. https://github.com/opensearch-project/security/pull/1701

You’ll need to enable SSL on HTTP to get securityadmin.sh working.