Is there a way to get something like a CNAME with the build in-DNS for macvlan?

[io7m]

Hello!

I'm using the macvlan network type for a large number of containers. The containers (presumably using the built-in podman DNS, I'm not certain how it works) can refer to each other by name in their configurations in order to make network requests between services.

In more traditional setups, I would have had services refer to a CNAME record instead of internal names as this allowed for fairly effortless upgrades. For example:

1. Services refer to the CNAME record mail.example.com instead of the A record mail05.example.com.
2. A new mail06.example.com server is created.
3. The CNAME record mail.example.com is updated to point to mail06.example.com.
4. Existing machines pick up the new mail06 server instead of the old mail05 server.

Is there a way to get this kind of setup using only podman?

[Luap99]

No, first we never do anything with CNAMEs in aardvark-dns and just return direct A/AAAA responses for the container names.
Then we only support aardvark-dns with bridge networks. macvlan and such will have dns_enabled set to false as we have no way to redirect their traffic to the host.

[io7m]

OK, thanks!