Deploying a new bundle to your canvas is as easy and dragging and dropping. To deploy a database, drag a database bundle of your cloud from the Bundlebar left of the canvas (use the filter button if you're unsure). The database bundle will be initialized and ready to deploy. Click Configure on your database bundle to open the configuration menu. Either fill out the configurations manually or use the presets at the top of the menu.
Once you're done, click Deploy to deploy your database bundle.