Zones Created During Preview

[edglynes]

Hi. we work on the Akamai EdgeDns provider. We've discovered that the function EnsureZoneExists(domain string) is called during preview resulting in the creation of zones during preview which is suposed to not result in any persisted changes. All (of those sampeld) the providers perform the create in EnsureZoneExists(domain string) if the zone doesn't exist without context.

Is this behavior intentional? Can the providers distinguish preview mode and skip the creation? See attached.
dnscontrol_preview_issue.pdf
Thx.

[tlimoncelli]

Hi there!

Yeah, that behavior doesn't make for a good user experience. I think the original intention was to make sure that preview doesn't get confused by a non-existent zone on the server, but that conflicts with the idea that "preview" should not make any changes.

The good news is that you can use --populate-on-preview=false to disable this behavior

Even better news is that this will become the default in the next release: #3693