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dhcp-to-dns: add a marker for new records

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This commit is contained in:
Christian Hesse 2020-06-02 22:05:21 +02:00
parent 7597911672
commit bfcf861b51
2 changed files with 11 additions and 1 deletions
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8
dhcp-to-dns
View file

@ -21,6 +21,12 @@
:local Ttl 5m; :local Ttl 5m;
:local CommentPrefix "managed by dhcp-to-dns for "; :local CommentPrefix "managed by dhcp-to-dns for ";
:if ([ / ip dns static print count-only where comment="--- dhcp-to-dns above ---" name=- type=NXDOMAIN disabled ] = 0) do={
/ ip dns static add comment="--- dhcp-to-dns above ---" name=- type=NXDOMAIN disabled=yes;
$LogPrintExit warning "Added disabled static dns record with comment '--- dhcp-to-dns above ---'." false;
}
:local PlaceBefore [ / ip dns static find where comment="--- dhcp-to-dns above ---" name=- type=NXDOMAIN disabled ];
:foreach DnsRecord in=[ / ip dns static find where comment ~ $CommentPrefix ] do={ :foreach DnsRecord in=[ / ip dns static find where comment ~ $CommentPrefix ] do={
:local DnsRecordVal [ / ip dns static get $DnsRecord ]; :local DnsRecordVal [ / ip dns static get $DnsRecord ];
:local MacAddress [ $CharacterReplace ($DnsRecordVal->"comment") $CommentPrefix "" ]; :local MacAddress [ $CharacterReplace ($DnsRecordVal->"comment") $CommentPrefix "" ];
@ -63,6 +69,6 @@
} }
} else={ } else={
$LogPrintExit info ("Adding new DNS entry for " . $Fqdn . ", address is " . $LeaseVal->"address" . ".") false; $LogPrintExit info ("Adding new DNS entry for " . $Fqdn . ", address is " . $LeaseVal->"address" . ".") false;
/ ip dns static add name=$Fqdn address=($LeaseVal->"address") ttl=$Ttl comment=$Comment; / ip dns static add name=$Fqdn address=($LeaseVal->"address") ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
} }
} }

4
doc/dhcp-to-dns.md
View file

@ -25,6 +25,10 @@ A scheduler cares about cleanup:
Configuration Configuration
------------- -------------
On first run a disabled static dns record acting as marker (with comment
"`--- dhcp-to-dns above ---`") is added. Move this entry to define where new
entries are to be added.
The configuration goes to `global-config-overlay`, these are the parameters: The configuration goes to `global-config-overlay`, these are the parameters:
* `Domain`: the domain used for dns records * `Domain`: the domain used for dns records