Reverse proxy for opensearch dashboards

We should put opensearch dasboards behind a reverse proxy so they listen on 443 and don't need to open 5601.

Add proxy config to apache (see below)
Update /etc/opensearch-dashboards/opensearch_dashboards.yml with server.basePath: /opensearchdash and server.host: 127.0.0.1

# cat /etc/httpd/conf.d/apache-opensearchdash.conf 
<IfModule proxy_module>
    ProxyRequests Off
    <Proxy *>
        <IfVersion >= 2.4>
            Require all granted
        </IfVersion>
        <IfVersion < 2.4>
            Order deny,allow
            Allow from all
        </IfVersion>
    </Proxy>
    ProxyPass /opensearchdash http://localhost:5601 status=+I
    ProxyPreserveHost On
</IfModule>

perfsonar / archive

Reverse proxy for opensearch dashboards #4