You can find many ways to specify the VLAN in your network configuration but I find this is the simplest and quickest.
In this case we are talking about a bridged adapter "vmbr0" but it works even if you just had a normal non-bridged interface.
The key here is that in vmbr0 you'll notice there is no IP address. We just specify "manual".
Below it is a similar stanza for "vmbr0.58" in this case 58 represents the VLAN (change the 58 to the number of your desired VLAN). Then below it we set the IP address or we could have used DHCP as well.
iface lo inet loopback
iface enp2s0 inet manual
iface vmbr0 inet manual
iface vmbr0.58 inet static
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