DOC-5458 RS: Added generate_self_signed_certs.sh options table to create certificates

Author: rrelledge

content/operate/rs/security/certificates/create-certificates.md

@@ -22,6 +22,17 @@ By default, the `generate_self_signed_certs.sh` script is located in `/opt/redis
 
 Here, you learn how to use this script to generate new certificates and how to install them.
 
+### Generate self-signed certs script options
+
+You can run the `generate_self_signed_certs.sh` script with the following options:
+
+| Option | Description |
+|----------|-------------|
+| `-h`<br />`--help` | Displays usage instructions. (Optional) |
+| `-d <days>`<br />`--days <days>` | Number of days the self-signed certificate is valid for. (Optional, default: 365) |
+| `-f <names>`<br /><nobr>`--fqdnNames <names>`</nobr> | Space-separated list of [fully qualified domain names (FQDNs)](https://en.wikipedia.org/wiki/Fully_qualified_domain_name). Used for [storage area networks (SANs)](https://en.wikipedia.org/wiki/Storage_area_network). (Required)<br />Example: `-f "redis.example.com redis-1.example.com"` |
+| `-t <type>`<br />`--type <type>` | Type of certificate to generate. (Optional, default: all) <br />Values:<br />**cm**: Cluster Manager UI certificate<br />**api**: REST API certificate<br /> **proxy**: database endpoint proxy certificate<br />**syncer**: syncer component certificate<br />**metrics**: metrics exporter certificate<br />**all**: generates all certificate types |
+
 ### Step 1: Generate new certificates 
 
 Sign in to the machine hosting the cluster's master node and then run the following command: