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Store releases in S3

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Fixes #7.
This commit is contained in:
Eelco Dolstra 2016-09-26 18:06:51 +02:00
parent becf1f2ae3
commit d3d33d5b25
3 changed files with 74 additions and 74 deletions
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2
README.md
View file

@ -8,4 +8,4 @@
$ ./result/bin/mirror-nixos-branch nixos-unstable-small https://hydra.nixos.org/job/nixos/unstable-small/tested/latest-finished
$ ./result/bin/generate-programs-index /data/releases/nixos-files.sqlite /data/releases/nixos/unstable-small/nixos-16.09pre89017.9db1990-tmp/unpack/nixos-16.09pre89017.9db1990/programs.sqlite http://nix-cache.s3.amazonaws.com/ /data/releases/nixos/unstable-small/nixos-16.09pre89017.9db1990-tmp/store-paths /data/releases/nixos/unstable-small/nixos-16.09pre89017.9db1990-tmp/unpack/nixos-16.09pre89017.9db1990/nixpkgs
$ ./result/bin/generate-programs-index /data/releases/nixos-files.sqlite ./programs.sqlite http://nix-cache.s3.amazonaws.com/ /data/releases/nixos/unstable-small/nixos-16.09pre89017.9db1990-tmp/store-paths /data/releases/nixos/unstable-small/nixos-16.09pre89017.9db1990-tmp/unpack/nixos-16.09pre89017.9db1990/nixpkgs

11
default.nix
View file

@ -5,9 +5,10 @@ with pkgs;
let
# FIXME
nix = lib.overrideDerivation nixUnstable (orig: {
src = /home/eelco/Dev/nix;
});
nix = builtins.storePath /nix/store/b554awsd9vssb936mb32icgpfbyifsai-nix-1.12pre1234_abcdef;
#lib.overrideDerivation nixUnstable (orig: {
# src = /home/eelco/Dev/nix;
#});
in
@ -15,7 +16,7 @@ stdenv.mkDerivation {
name = "nixos-channel-scripts";
buildInputs = with perlPackages;
[ nix sqlite makeWrapper perl FileSlurp LWP LWPProtocolHttps ListMoreUtils DBDSQLite ];
[ nix sqlite makeWrapper perl FileSlurp LWP LWPProtocolHttps ListMoreUtils DBDSQLite NetAmazonS3 boehmgc ];
buildCommand = ''
mkdir -p $out/bin
@ -25,6 +26,8 @@ stdenv.mkDerivation {
cp ${./mirror-nixos-branch.pl} $out/bin/mirror-nixos-branch
wrapProgram $out/bin/mirror-nixos-branch --set PERL5LIB $PERL5LIB --prefix PATH : ${wget}/bin:${git}/bin:${nix}/bin:${gnutar}/bin:${xz}/bin:$out/bin
patchShebangs $out/bin
'';
}

127
mirror-nixos-branch.pl
View file

@ -1,6 +1,7 @@
#! /run/current-system/sw/bin/perl -w
#! /usr/bin/env perl
use strict;
use warnings;
use Data::Dumper;
use Fcntl qw(:flock);
use File::Basename;
@ -9,21 +10,39 @@ use File::Slurp;
use JSON::PP;
use LWP::UserAgent;
use List::MoreUtils qw(uniq);
use Net::Amazon::S3;
my $channelName = $ARGV[0];
my $releaseUrl = $ARGV[1];
my $isMainRelease = ($ARGV[2] // 0) eq 1;
die "Usage: $0 CHANNEL-NAME RELEASE-URL [IS-MAIN-RELEASE]\n" unless defined $channelName && defined $releaseUrl;
die "Usage: $0 CHANNEL-NAME RELEASE-URL\n" unless defined $channelName && defined $releaseUrl;
$channelName =~ /^([a-z]+)-(.*)$/ or die;
my $channelDirRel = $channelName eq "nixpkgs-unstable" ? "nixpkgs" : "$1/$2";
my $releasesDir = "/data/releases/$channelDirRel";
# Configuration.
my $channelsDir = "/data/releases/channels";
my $filesCache = "/data/releases/nixos-files.sqlite";
my $bucketName = "nix-releases";
$ENV{'GIT_DIR'} = "/home/hydra-mirror/nixpkgs-channels";
# S3 setup.
my $aws_access_key_id = $ENV{'AWS_ACCESS_KEY_ID'} or die;
my $aws_secret_access_key = $ENV{'AWS_SECRET_ACCESS_KEY'} or die;
my $s3 = Net::Amazon::S3->new(
{ aws_access_key_id => $aws_access_key_id,
aws_secret_access_key => $aws_secret_access_key,
retry => 1,
host => "s3-eu-west-1.amazonaws.com",
});
my $bucket = $s3->bucket($bucketName) or die;
sub fetch {
my ($url, $type) = @_;
@ -42,13 +61,12 @@ my $releaseId = $releaseInfo->{id} or die;
my $releaseName = $releaseInfo->{nixname} or die;
my $evalId = $releaseInfo->{jobsetevals}->[0] or die;
my $evalUrl = "https://hydra.nixos.org/eval/$evalId";
my $releaseDir = "$releasesDir/$releaseName";
my $evalInfo = decode_json(fetch($evalUrl, 'application/json'));
my $releasePrefix = "$channelDirRel/$releaseName";
my $rev = $evalInfo->{jobsetevalinputs}->{nixpkgs}->{revision} or die;
print STDERR "release is ‘$releaseName’ (build $releaseId), eval is $evalId, dir is ‘$releaseDir’, Git commit is $rev\n";
print STDERR "release is ‘$releaseName’ (build $releaseId), eval is $evalId, prefix is $releasePrefix, Git commit is $rev\n";
# Guard against the channel going back in time.
my $curReleaseDir = readlink "$channelsDir/$channelName";
@ -59,10 +77,10 @@ if (defined $curReleaseDir) {
die "channel would go back in time from $curRelease to $releaseName, bailing out\n" if $d == 1;
}
if (-d $releaseDir) {
if ($bucket->head_key("$releasePrefix/github-link")) {
print STDERR "release already exists\n";
} else {
my $tmpDir = dirname($releaseDir) . "/$releaseName-tmp";
my $tmpDir = "/data/releases/tmp/release-$channelName/$releaseName";
File::Path::make_path($tmpDir);
write_file("$tmpDir/src-url", $evalUrl);
@ -74,18 +92,6 @@ if (-d $releaseDir) {
write_file("$tmpDir/store-paths", join("\n", uniq(@{$storePaths})) . "\n");
}
# Copy the manual.
my $manualJob = $channelName =~ /nixos/ ? "nixos.manual.x86_64-linux" : "manual";
my $manualDir = $channelName =~ /nixos/ ? "nixos" : "nixpkgs";
if (! -e "$tmpDir/manual") {
my $manualInfo = decode_json(fetch("$evalUrl/job/$manualJob", 'application/json'));
my $manualPath = $manualInfo->{buildoutputs}->{out}->{path} or die;
system("nix-store", "-r", $manualPath) == 0 or die "unable to fetch $manualPath\n";
system("cp", "-rd", "$manualPath/share/doc/$manualDir", "$tmpDir/manual") == 0 or die "unable to copy manual from $manualPath";
system("chmod", "-R", "u+w", "$tmpDir/manual");
symlink("manual.html", "$tmpDir/manual/index.html") unless -e "$tmpDir/manual/index.html";
}
sub downloadFile {
my ($jobName, $dstName) = @_;
@ -95,22 +101,24 @@ if (-d $releaseDir) {
$dstName //= basename($srcFile);
my $dstFile = "$tmpDir/" . $dstName;
my $sha256_expected = $buildInfo->{buildproducts}->{1}->{sha256hash} or die;
if (! -e $dstFile) {
print STDERR "downloading $srcFile to $dstFile...\n";
write_file("$dstFile.sha256", $sha256_expected);
system("NIX_REMOTE=https://cache.nixos.org/ nix cat-store '$srcFile' > '$dstFile.tmp'") == 0
or die "unable to fetch $srcFile\n";
rename("$dstFile.tmp", $dstFile) or die;
}
my $sha256_expected = $buildInfo->{buildproducts}->{1}->{sha256hash} or die;
if (-e "$dstFile.sha256") {
my $sha256_actual = `nix hash-file --type sha256 '$dstFile'`;
chomp $sha256_actual;
if ($sha256_expected ne $sha256_actual) {
print STDERR "file $dstFile is corrupt\n";
print STDERR "file $dstFile is corrupt $sha256_expected $sha256_actual\n";
exit 1;
}
write_file("$dstFile.sha256", $sha256_expected);
}
}
if ($channelName =~ /nixos/) {
@ -129,19 +137,14 @@ if (-d $releaseDir) {
downloadFile("tarball", "nixexprs.tar.xz");
}
# Make "github-link" a redirect to the GitHub history of this
# release.
write_file("$tmpDir/.htaccess",
"Redirect /releases/$channelDirRel/$releaseName/github-link https://github.com/NixOS/nixpkgs-channels/commits/$rev\n");
write_file("$tmpDir/github-link", "");
# Generate the programs.sqlite database and put it in nixexprs.tar.xz.
if ($channelName =~ /nixos/) {
if ($channelName =~ /nixos/ && -e "$tmpDir/store-paths") {
File::Path::make_path("$tmpDir/unpack");
system("tar", "xfJ", "$tmpDir/nixexprs.tar.xz", "-C", "$tmpDir/unpack") == 0 or die;
my $exprDir = glob("$tmpDir/unpack/*");
system("generate-programs-index $filesCache $exprDir/programs.sqlite http://nix-cache.s3.amazonaws.com/ $tmpDir/store-paths $exprDir/nixpkgs") == 0 or die;
system("rm -f $tmpDir/nixexprs.tar.xz $exprDir/programs.sqlite-journal") == 0 or die;
unlink("$tmpDir/nixexprs.tar.xz.sha256");
system("tar", "cfJ", "$tmpDir/nixexprs.tar.xz", "-C", "$tmpDir/unpack", basename($exprDir)) == 0 or die;
system("rm -rf $tmpDir/unpack") == 0 or die;
}
@ -150,7 +153,29 @@ if (-d $releaseDir) {
system("xz", "$tmpDir/store-paths") == 0 or die;
}
rename($tmpDir, $releaseDir) or die;
# Upload the release to S3.
for my $fn (glob("$tmpDir/*")) {
my $key = "$releasePrefix/" . basename $fn;
unless (defined $bucket->head_key($key)) {
print STDERR "mirroring $fn to s3://$bucketName/$key...\n";
$bucket->add_key_filename(
$key, $fn,
{ content_type => $fn =~ /.sha256|src-url|binary-cache-url|git-revision/ ? "text/plain" : "application/octet-stream" })
or die $bucket->err . $bucket->errstr;
}
}
# Make "github-link" a redirect to the GitHub history of this
# release.
my $link = "https://github.com/NixOS/nixpkgs-channels/commits/$rev";
$bucket->add_key(
"$releasePrefix/github-link", $link,
{ 'x-amz-website-redirect-location' => $link,
content_type => "text/plain"
})
or die $bucket->err . $bucket->errstr;
File::Path::remove_tree($tmpDir);
}
# Prevent concurrent writes to the channels and the Git clone.
@ -159,13 +184,14 @@ flock($lockfile, LOCK_EX) or die "cannot acquire channels lock\n";
# Update the channel.
my $htaccess = "$channelsDir/.htaccess-$channelName";
my $target = "https://d3g5gsiof5omrk.cloudfront.net/$releasePrefix";
write_file($htaccess,
"Redirect /channels/$channelName /releases/$channelDirRel/$releaseName\n" .
"Redirect /releases/nixos/channels/$channelName /releases/$channelDirRel/$releaseName\n");
"Redirect /channels/$channelName $target\n" .
"Redirect /releases/nixos/channels/$channelName $target\n");
my $channelLink = "$channelsDir/$channelName";
unlink("$channelLink.tmp");
symlink($releaseDir, "$channelLink.tmp") or die;
write_file("$channelLink.tmp", "$target");
rename("$channelLink.tmp", $channelLink) or die;
system("cat $channelsDir/.htaccess-nix* > $channelsDir/.htaccess.tmp") == 0 or die;
@ -174,32 +200,3 @@ rename("$channelsDir/.htaccess.tmp", "$channelsDir/.htaccess") or die;
# Update the nixpkgs-channels repo.
system("git remote update origin >&2") == 0 or die;
system("git push channels $rev:refs/heads/$channelName >&2") == 0 or die;
# If this is the "main" stable release, generate a .htaccess with some
# symbolic redirects to the latest ISOs.
if ($isMainRelease) {
my $baseURL = "/releases/$channelDirRel/$releaseName";
my $res = "Redirect /releases/nixos/latest $baseURL\n";
sub add {
my ($name, $wildcard) = @_;
my @files = glob "$releaseDir/$wildcard";
die if scalar @files != 1;
my $fn = basename($files[0]);
$res .= "Redirect /releases/nixos/$name $baseURL/$fn\n";
$res .= "Redirect /releases/nixos/$name-sha256 $baseURL/$fn.sha256\n";
}
add("latest-iso-minimal-i686-linux", "nixos-minimal-*-i686-linux.iso");
add("latest-iso-minimal-x86_64-linux", "nixos-minimal-*-x86_64-linux.iso");
#add("latest-iso-graphical-i686-linux", "nixos-graphical-*-i686-linux.iso");
add("latest-iso-graphical-x86_64-linux", "nixos-graphical-*-x86_64-linux.iso");
#add("latest-ova-i686-linux", "nixos-*-i686-linux.ova");
add("latest-ova-x86_64-linux", "nixos-*-x86_64-linux.ova");
my $htaccess2 = "/data/releases/nixos/.htaccess";
write_file("$htaccess2.tmp", $res);
rename("$htaccess2.tmp", $htaccess2) or die;
}