mafoo.org.uk/mythic-beasts-dns-sync
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Implement dry-run

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This commit is contained in:
Matthew Slowe
2021-06-16 17:01:01 +01:00
parent 405903f0f5
commit 95f0148af9
1 changed files with 22 additions and 14 deletions
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8
manage-dns.pl
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@@ -13,6 +13,7 @@ use WWW::Form::UrlEncoded::PP qw/build_urlencoded/;
my $in = YAML::Tiny->read(shift); my $in = YAML::Tiny->read(shift);
my $ua = LWP::UserAgent->new; my $ua = LWP::UserAgent->new;
my %seen; my %seen;
my $DRY_RUN = $ENV{DRY_RUN};
sub _debug { sub _debug {
print STDERR ("=== DEBUG ===\n", Dumper(@_), "=== END ===\n") if $ENV{DEBUG} or $in->[0]->{debug}; print STDERR ("=== DEBUG ===\n", Dumper(@_), "=== END ===\n") if $ENV{DEBUG} or $in->[0]->{debug};
@@ -51,6 +52,8 @@ sub is_unsupported($) {
return $supported_types{$type}; return $supported_types{$type};
} }
_notice("Dry run - no changes will be applied") if ${DRY_RUN};
if($ENV{DEBUG} or $in->[0]->{debug}) { if($ENV{DEBUG} or $in->[0]->{debug}) {
use LWP::Debug qw(+); use LWP::Debug qw(+);
$ua->add_handler( $ua->add_handler(
@@ -178,6 +181,7 @@ sub check_and_update_record($$$$$) {
# Update the record # Update the record
$record->{ttl} = $in->[0]->{defaults}->{ttl}->{$zone}; $record->{ttl} = $in->[0]->{defaults}->{ttl}->{$zone};
_debug("Update ", $url, $record, to_json($record)); _debug("Update ", $url, $record, to_json($record));
unless ($DRY_RUN) {
my $res = $ua->put( my $res = $ua->put(
$url, $url,
"Content-Type" => "application/json", "Content-Type" => "application/json",
@@ -185,11 +189,13 @@ sub check_and_update_record($$$$$) {
); );
warn "Failed to update $url: " . $res->status_line unless $res->is_success; warn "Failed to update $url: " . $res->status_line unless $res->is_success;
} }
}
} else { } else {
# Create new record # Create new record
my $new = format_record($zone, $type, $host, $value); my $new = format_record($zone, $type, $host, $value);
_notice("Created new record: %s %s %s", $host, $type, $value); _notice("Created new record: %s %s %s", $host, $type, $value);
_debug($new); _debug($new);
unless ($DRY_RUN) {
my $res = $ua->post( my $res = $ua->post(
$url, $url,
"Content-Type" => "application/json", "Content-Type" => "application/json",
@@ -199,10 +205,12 @@ sub check_and_update_record($$$$$) {
); );
warn "Failed to create $url: " . $res->status_line . "\n" . $res->content unless $res->is_success; warn "Failed to create $url: " . $res->status_line . "\n" . $res->content unless $res->is_success;
} }
}
} }
sub delete_record($$) { sub delete_record($$) {
my ($zone, $record) = @_; my ($zone, $record) = @_;
return if $DRY_RUN;
my $url = $in->[0]->{defaults}->{api} . "/$zone/records/$record->{host}/$record->{type}?host=$record->{host}&data=$record->{data}"; my $url = $in->[0]->{defaults}->{api} . "/$zone/records/$record->{host}/$record->{type}?host=$record->{host}&data=$record->{data}";
my $res = $ua->delete($url); my $res = $ua->delete($url);