use Math::Trig qw(deg2rad pip2 great_circle_distance);
use JSON::XS;
use LWP::UserAgent;
-use YAML;
+use YAML::XS qw(LoadFile DumpFile);
my $originfile = shift @ARGV;
my $clusterfile = shift @ARGV;
my $zone = shift @ARGV;
my $targetoriginfile = shift @ARGV;
-my $origins = YAML::LoadFile($originfile);
-my $clusters = YAML::LoadFile($clusterfile);
+my $origins = LoadFile($originfile);
+my $clusters = LoadFile($clusterfile);
my $gdnsname = shift @ARGV;
my @servers;
{
if ($cluster->{servers})
{
- $cluster->{bandwidth} = 0;
+ $cluster->{requests} = 0;
foreach my $server (@{$cluster->{servers}})
{
$server->{cluster} = $cluster;
- $cluster->{bandwidth} = $cluster->{bandwidth} + $server->{bandwidth};
+ $cluster->{requests} = $cluster->{requests} + $server->{requests};
push @servers, $server;
}
}
- else
+ elsif ($cluster->{requests} > 0)
{
my $server = {
cluster => $cluster,
statuscake => $cluster->{statuscake},
- bandwidth => $cluster->{bandwidth},
+ requests => $cluster->{requests},
+ cname => $cluster->{cname},
ipv4 => $cluster->{ipv4},
ipv6 => $cluster->{ipv6}
};
push @servers, $server;
}
+ else
+ {
+ $cluster->{servers} = [];
+ }
$cluster->{name} = $name;
$cluster->{status} = "down";
}
# If statuscake support is enabled then check which servers are up
-if ($ENV{STATUSCAKE_USERNAME} && $ENV{STATUSCAKE_APIKEY})
+if ($ENV{STATUSCAKE_APIKEY})
{
my $ua = LWP::UserAgent->new;
my $cache;
$ua->agent("mkgeo/1.0");
- $ua->default_header("Username", $ENV{STATUSCAKE_USERNAME});
- $ua->default_header("API", $ENV{STATUSCAKE_APIKEY});
+ $ua->default_header("Authorization", "Bearer $ENV{STATUSCAKE_APIKEY}");
if (-f "statuscake.yml")
{
- $cache = YAML::LoadFile("statuscake.yml");
+ $cache = LoadFile("statuscake.yml");
}
else
{
$cache = {};
}
- my $response = $ua->get("https://app.statuscake.com/API/Tests/");
+ my $page = 1;
+ my $pages = 1;
- if ($response->is_success)
+ while ($page <= $pages)
{
- my $tests = decode_json($response->content);
+ my $response = $ua->get("https://api.statuscake.com/v1/uptime?nouptime=true&limit=100&page=${page}");
- foreach my $test (@$tests)
+ if ($response->is_success)
{
- my $testid = $test->{TestID};
+ my $uptime = decode_json($response->content);
- if ($test->{Status} eq "Up" && !$test->{Paused})
+ foreach my $test (@{$uptime->{data}})
{
- $cache->{$testid} = "up";
- }
- else
- {
- $cache->{$testid} = "down";
+ my $testid = $test->{id};
+
+ if ($test->{status} eq "up" && !$test->{paused})
+ {
+ $cache->{$testid} = "up";
+ }
+ else
+ {
+ $cache->{$testid} = "down";
+ }
}
+
+ $page = $page + 1;
+ $pages = $uptime->{metadata}->{page_count};
}
}
}
}
- YAML::DumpFile("statuscake.yml", $cache);
+ DumpFile("statuscake-$$.yml", $cache);
+ rename("statuscake-$$.yml", "statuscake.yml");
}
# Mark a cluster as up if any servers are up
}
else
{
- $server->{cluster}->{bandwidth} = $server->{cluster}->{bandwidth} - $server->{bandwidth};
+ $server->{cluster}->{requests} = $server->{cluster}->{requests} - $server->{requests};
}
}
+# Abort if no servers at all are up
+exit 0 unless grep { $_->{status} eq "up" } values(%$clusters);
+
# Create target origins object
my $targetorigins = {};
# Initialise cluster details
while (my($name,$cluster) = each %$clusters)
{
- $cluster->{bandwidth_limit} = $cluster->{bandwidth} * 1024 * 1024;
- $cluster->{bandwidth_used} = 0;
+ $cluster->{requests_limit} = $cluster->{requests};
+ $cluster->{requests_used} = 0;
+
+ next if $cluster->{global};
$targetorigins->{$cluster->{name}} = {
code => $cluster->{name},
name => $cluster->{name},
lat => $cluster->{lat},
lon => $cluster->{lon},
- bandwidth => 0
+ requests => 0
};
}
if ($cluster->{status} eq "up" && $match ne "denied")
{
my $priority = $match eq "preferred" ? 20 : 10;
- my $distance = distance($origin->{lat}, $origin->{lon}, $cluster->{lat}, $cluster->{lon});
+ my $distance;
+
+ if ($cluster->{global})
+ {
+ $distance = 0;
+ }
+ else
+ {
+ $distance = distance($origin->{lat}, $origin->{lon}, $cluster->{lat}, $cluster->{lon});
+ }
push @mappings, {
origin => $origin, cluster => $cluster,
allocate_clusters(@mappings);
# If we failed to allocate every origin then loop, increasing
-# the bandwidth for each cluster by a little and retrying until
+# the requests for each cluster by a little and retrying until
# we manage to allocate everything
while (grep { !exists($_->{cluster}) } values %$origins)
{
delete $origin->{cluster};
}
- # Reset bandwidth usage for clusters and increase limits by 10%
+ # Reset requests usage for clusters and increase limits by 10%
foreach my $cluster (values %$clusters)
{
- $cluster->{bandwidth_used} = 0;
- $cluster->{bandwidth_limit} = $cluster->{bandwidth_limit} * 1.1;
+ $cluster->{requests_used} = 0;
+ $cluster->{requests_limit} = $cluster->{requests_limit} * 1.1;
}
# Try the allocate again
allocate_clusters(@mappings);
}
+# Report on allocation results
+foreach my $name (sort keys %$clusters)
+{
+ my $cluster = $clusters->{$name};
+ my $used = int($cluster->{requests_used} + 0.5);
+ my $limit = $cluster->{requests_limit};
+
+ if ($limit > 0)
+ {
+ my $proportion = int($used / $limit * 100 + 0.5);
+
+ print "${name}: used ${used} of ${limit} (${proportion}%)\n";
+ }
+ else
+ {
+ print "${name}: used ${used} of ${limit}\n";
+ }
+}
+
# Create JSON collection object
my @json;
# Open output files
-my $zonefile = IO::File->new("> data/${zone}") || die "$!";
-my $jsonfile = IO::File->new("> json/${zone}.json") || die "$!";
+my $zonefile = IO::File->new("> include/${zone}.js") || die "$!";
+my $jsonfile = IO::File->new("> json/${zone}.openstreetmap.org.json") || die "$!";
+
+# Output headers
+$zonefile->print("var \U${zone}\E_RECORDS = [\n");
# Output details for each country
foreach my $origin (sort { $a->{name} cmp $b->{name} } values %$origins)
{
my $cluster = $origin->{cluster};
- my $clon = $origin->{lon};
- my $clat = $origin->{lat};
- my $slon = $cluster->{lon};
- my $slat = $cluster->{lat};
- if ($clon > 0 && $slon < 0 && 360 + $slon - $clon < $clon - $slon)
- {
- $slon = $slon + 360;
- }
- elsif ($slon > 0 && $clon < 0 && 360 + $clon - $slon < $slon - $clon)
+ if (!defined($gdnsname))
{
- $clon = $clon + 360;
+ $zonefile->print(" CNAME(\"\L$origin->{code}\E.${zone}\", \"$cluster->{name}.${zone}.openstreetmap.org.\", TTL(\"10m\")),\n");
}
- $zonefile->print("# $origin->{name}\n");
- $zonefile->print("C\L$origin->{code}\E.${zone}:$cluster->{name}.${zone}:600\n");
+ if ($cluster->{lon} && $cluster->{lat})
+ {
+ my $clon = $origin->{lon};
+ my $clat = $origin->{lat};
+ my $slon = $cluster->{lon};
+ my $slat = $cluster->{lat};
- push @json, {
- type => "Feature",
- geometry => {
- type => "LineString",
- coordinates => [ [ $clon, $clat ], [ $slon, $slat ] ]
- },
- properties => {
- origin => $origin->{name},
- server => $cluster->{name},
- colour => $cluster->{colour}
+ if ($clon > 0 && $slon < 0 && 360 + $slon - $clon < $clon - $slon)
+ {
+ $slon = $slon + 360;
+ }
+ elsif ($slon > 0 && $clon < 0 && 360 + $clon - $slon < $slon - $clon)
+ {
+ $clon = $clon + 360;
}
- };
- $targetorigins->{$cluster->{name}}->{bandwidth} += $origin->{bandwidth};
-}
+ push @json, {
+ type => "Feature",
+ geometry => {
+ type => "LineString",
+ coordinates => [ [ $clon, $clat ], [ $slon, $slat ] ]
+ },
+ properties => {
+ origin => $origin->{name},
+ server => $cluster->{name},
+ colour => $cluster->{colour}
+ }
+ };
+ }
-# Header for default records
-$zonefile->print("# Unknown origins\n");
+ next if $cluster->{global};
-# Output default records for IPs that can't be mapped to a country
-foreach my $cluster (sort { $a->{name} cmp $b->{name} } values %$clusters)
-{
- my $name = $cluster->{name};
+ $targetorigins->{$cluster->{name}}->{requests} += $origin->{requests};
+}
- if (my $default = $cluster->{default})
- {
- output_server($zonefile, "${default}.${zone}", $cluster);
- }
- elsif (exists($cluster->{default}))
+# Skip default records if we don't need them
+if (!defined($gdnsname))
+{
+ # Output default records for IPs that can't be mapped to a country
+ foreach my $cluster (sort { $a->{name} cmp $b->{name} } values %$clusters)
{
- output_server($zonefile, "${zone}", $cluster);
+ my $name = $cluster->{name};
+
+ if (my $default = $cluster->{default})
+ {
+ output_server($zonefile, "${default}.${zone}", $cluster, 0);
+ }
+ elsif (exists($cluster->{default}))
+ {
+ output_server($zonefile, "${zone}", $cluster, 0);
+ }
}
}
-# Header for underlying servers
-$zonefile->print("# Servers\n");
-
# Output A records for each cluster
foreach my $cluster (sort { $a->{name} cmp $b->{name} } values %$clusters)
{
my $name = $cluster->{name};
- output_server($zonefile, "${name}.${zone}", $cluster);
-
if (@{$cluster->{servers}} > 1)
{
- output_server($zonefile, "${name}-%02d.${zone}", $cluster);
+ output_server($zonefile, "${name}-%02d.${zone}", $cluster, 1);
+ }
+ else
+ {
+ output_server($zonefile, "${name}.${zone}", $cluster, 1);
}
}
# Output the GeoJSON text
$jsonfile->print(encode_json(\@json));
+# Output footers
+$zonefile->print("];\n");
+
# Close the output files
-$jsonfile->close();
+$zonefile->close();
$zonefile->close();
# Output gdnsd configuration
{
my $name = $cluster->{name};
- if (@{$cluster->{servers}} > 1)
+ if (@{$cluster->{servers}} > 1 && grep { $_->{status} eq "up" } @{$cluster->{servers}})
{
$gdnsweightedfile->print("${name} => {\n");
if ($server->{status} eq "up")
{
my $number = sprintf("%02d", $index + 1);
- my $bandwidth = $server->{bandwidth};
-
- $gdnsweightedfile->print(" ${name}-${number} = [ ${name}-${number}.${zone}., ${bandwidth} ]\n");
+ my $requests = $server->{requests};
+
+ if (my $cname = $server->{cname})
+ {
+ $gdnsweightedfile->print(" ${name}-${number} = [ ${cname}., ${requests} ]\n");
+ }
+ else
+ {
+ $gdnsweightedfile->print(" ${name}-${number} = [ ${name}-${number}.${zone}.openstreetmap.org., ${requests} ]\n");
+ }
}
}
$gdnsresourcefile->print(" ${name} => %weighted!${name}\n");
}
+ elsif (my $cname = $cluster->{cname})
+ {
+ $gdnsresourcefile->print(" ${name} => ${cname}.\n");
+ }
else
{
- $gdnsresourcefile->print(" ${name} => ${name}.${zone}.\n");
+ $gdnsresourcefile->print(" ${name} => ${name}.${zone}.openstreetmap.org.\n");
}
}
}
# Output the target details in origin format if required
-YAML::DumpFile($targetoriginfile, $targetorigins) if $targetoriginfile;
+DumpFile($targetoriginfile, $targetorigins) if $targetoriginfile;
exit 0;
my @mappings = sort { compare_mappings($a, $b) } @_;
# Loop over the mappings, trying to assign each origin to the
- # nearest cluster, but subject to the bandwidth limits
+ # nearest cluster, but subject to the request limits
while (my $mapping = shift @mappings)
{
my @group;
push @group, shift @mappings;
}
- for my $mapping (sort compare_bandwidth @group)
+ for my $mapping (sort compare_requests @group)
{
my $origin = $mapping->{origin};
my $cluster = $mapping->{cluster};
if (!exists($origin->{cluster}) &&
- $cluster->{bandwidth_used} + $origin->{bandwidth} <= $cluster->{bandwidth_limit})
+ $cluster->{requests_used} + $origin->{requests} <= $cluster->{requests_limit})
{
$origin->{cluster} = $cluster;
- $cluster->{bandwidth_used} = $cluster->{bandwidth_used} + $origin->{bandwidth};
+ $cluster->{requests_used} = $cluster->{requests_used} + $origin->{requests};
}
}
}
#
# Compare two mappings to decide which to try first
#
-sub compare_bandwidth
+sub compare_requests
{
- my $a_used = ( $a->{cluster}->{bandwidth_used} * 100.0 ) / ( $a->{cluster}->{bandwidth_limit} * 1.0 );
- my $b_used = ( $b->{cluster}->{bandwidth_used} * 100.0 ) / ( $b->{cluster}->{bandwidth_limit} * 1.0 );
+ my $a_used = ( $a->{cluster}->{requests_used} * 100.0 ) / ( $a->{cluster}->{requests_limit} * 1.0 );
+ my $b_used = ( $b->{cluster}->{requests_used} * 100.0 ) / ( $b->{cluster}->{requests_limit} * 1.0 );
return $a_used <=> $b_used;
}
my $zonefile = shift;
my $name = shift;
my $cluster = shift;
+ my $all = shift;
while (my($index,$server) = each @{$cluster->{servers}})
{
- if ($server->{status} eq "up")
+ if ($all || $server->{status} eq "up")
{
- $zonefile->printf("+${name}:$server->{ipv4}:600\n", $index + 1);
+ if ($server->{ipv4})
+ {
+ $zonefile->printf(" A(\"${name}\", \"$server->{ipv4}\", TTL(\"10m\")),\n", $index + 1);
+ }
if ($server->{ipv6})
{
- $zonefile->printf("3${name}:$server->{ipv6}:600\n", $index + 1);
+ $zonefile->printf(" AAAA(\"${name}\", \"$server->{ipv6}\", TTL(\"10m\")),\n", $index + 1);
}
}
}
projects / dns.git / blobdiff