Amazon Relational Database Service (RDS) moved into the data center with VMware.

It’s a big deal for the partners, who started their relationship in the cloud before announcing plans to move into on-premises facilities last year. And it’s also significant for Amazon Web Services by itself because it shows the cloud giant’s continued push into enterprise data centers with another big step — AWS Outposts — planned for later this year.

AWS CEO Andy Jassy joined VMware CEO Pat Gelsinger on stage at VMworld 2018 to announce Amazon RDS on VMware. This service allows customers to deploy the public cloud-native database in their on-premises VMware-based data centers. “You’ll be able to provision databases, scale compute, storage, and memory for those databases, deploy in high-availability configurations by replicating to different VMware clusters,” Jassy said at the time.

In blog posts late yesterday both companies announced that the service is now available for production use. It launches with support for Microsoft SQL Server, PostgreSQL, and MySQL, and it works with vSphere clusters that run version 6.5 or better. AWS will initially sell and manage the service.

“Allowing you to run Amazon RDS — a very popular public cloud service — on your VMware platforms is a major step forward in our strategy to provide our customers and partners with the freedom to allow business requirements to dictate where anything runs,” wrote Chris Wolf, VMware VP and CTO for global field and industry. “If you think this is exciting, stay tuned. There is much more to come.”

One of the more-to-come things is AWS Outposts, which Jassy announced at re:Invent last year. In one flavor, this product will deliver the entire VMware software-defined data center to run on premises and to be managed as a service from the same console as VMware Cloud on AWS. Outposts will be available later this year.

AWS hasn’t specified exactly when, but it’s probably safe to assume that it will make a splashy debut at this year’s re:Invent conference in December.

“These are two very valuable solutions for our customers,” said Sandy Carter, VP of enterprise workloads at AWS, in an earlier interview. She’s referring to RDS on VMware and Outposts. “Outposts is really built for certain sets of use cases — low latency, for example, or where someone would need a lot of compute power on premises. The power of VMware cloud but also connecting into other AWS services as well.”