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nixpkgs/nixos/tests/borgbackup.nix

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import ./make-test.nix ({ pkgs, ... }:
let
passphrase = "supersecret";
dataDir = "/ran:dom/data";
excludeFile = "not_this_file";
keepFile = "important_file";
keepFileData = "important_data";
localRepo = "/root/back:up";
archiveName = "my_archive";
remoteRepo = "borg@server:."; # No need to specify path
privateKey = pkgs.writeText "id_ed25519" ''
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
QyNTUxOQAAACBx8UB04Q6Q/fwDFjakHq904PYFzG9pU2TJ9KXpaPMcrwAAAJB+cF5HfnBe
RwAAAAtzc2gtZWQyNTUxOQAAACBx8UB04Q6Q/fwDFjakHq904PYFzG9pU2TJ9KXpaPMcrw
AAAEBN75NsJZSpt63faCuaD75Unko0JjlSDxMhYHAPJk2/xXHxQHThDpD9/AMWNqQer3Tg
9gXMb2lTZMn0pelo8xyvAAAADXJzY2h1ZXR6QGt1cnQ=
-----END OPENSSH PRIVATE KEY-----
'';
publicKey = ''
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHHxQHThDpD9/AMWNqQer3Tg9gXMb2lTZMn0pelo8xyv root@client
'';
privateKeyAppendOnly = pkgs.writeText "id_ed25519" ''
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
QyNTUxOQAAACBacZuz1ELGQdhI7PF6dGFafCDlvh8pSEc4cHjkW0QjLwAAAJC9YTxxvWE8
cQAAAAtzc2gtZWQyNTUxOQAAACBacZuz1ELGQdhI7PF6dGFafCDlvh8pSEc4cHjkW0QjLw
AAAEAAhV7wTl5dL/lz+PF/d4PnZXuG1Id6L/mFEiGT1tZsuFpxm7PUQsZB2Ejs8Xp0YVp8
IOW+HylIRzhweORbRCMvAAAADXJzY2h1ZXR6QGt1cnQ=
-----END OPENSSH PRIVATE KEY-----
'';
publicKeyAppendOnly = ''
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFpxm7PUQsZB2Ejs8Xp0YVp8IOW+HylIRzhweORbRCMv root@client
'';
in {
name = "borgbackup";
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meta = with pkgs.stdenv.lib; {
maintainers = with maintainers; [ dotlambda ];
};
nodes = {
client = { ... }: {
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services.borgbackup.jobs = {
local = rec {
paths = dataDir;
repo = localRepo;
preHook = ''
# Don't append a timestamp
archiveName="${archiveName}"
'';
encryption = {
mode = "repokey";
inherit passphrase;
};
compression = "auto,zlib,9";
prune.keep = {
within = "1y";
yearly = 5;
};
exclude = [ "*/${excludeFile}" ];
postHook = "echo post";
startAt = [ ]; # Do not run automatically
};
remote = {
paths = dataDir;
repo = remoteRepo;
encryption.mode = "none";
startAt = [ ];
environment.BORG_RSH = "ssh -oStrictHostKeyChecking=no -i /root/id_ed25519";
};
remoteAppendOnly = {
paths = dataDir;
repo = remoteRepo;
encryption.mode = "none";
startAt = [ ];
environment.BORG_RSH = "ssh -oStrictHostKeyChecking=no -i /root/id_ed25519.appendOnly";
};
};
};
server = { ... }: {
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services.openssh = {
enable = true;
passwordAuthentication = false;
challengeResponseAuthentication = false;
};
services.borgbackup.repos.repo1 = {
authorizedKeys = [ publicKey ];
path = "/data/borgbackup";
};
# Second repo to make sure the authorizedKeys options are merged correctly
services.borgbackup.repos.repo2 = {
authorizedKeysAppendOnly = [ publicKeyAppendOnly ];
path = "/data/borgbackup";
quota = ".5G";
};
};
};
testScript = ''
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startAll;
$client->fail('test -d "${remoteRepo}"');
$client->succeed("cp ${privateKey} /root/id_ed25519");
$client->succeed("chmod 0600 /root/id_ed25519");
$client->succeed("cp ${privateKeyAppendOnly} /root/id_ed25519.appendOnly");
$client->succeed("chmod 0600 /root/id_ed25519.appendOnly");
$client->succeed("mkdir -p ${dataDir}");
$client->succeed("touch ${dataDir}/${excludeFile}");
$client->succeed("echo '${keepFileData}' > ${dataDir}/${keepFile}");
subtest "local", sub {
my $borg = "BORG_PASSPHRASE='${passphrase}' borg";
$client->systemctl("start --wait borgbackup-job-local");
$client->fail("systemctl is-failed borgbackup-job-local");
# Make sure exactly one archive has been created
$client->succeed("c=\$($borg list '${localRepo}' | wc -l) && [[ \$c == '1' ]]");
# Make sure excludeFile has been excluded
$client->fail("$borg list '${localRepo}::${archiveName}' | grep -qF '${excludeFile}'");
# Make sure keepFile has the correct content
$client->succeed("$borg extract '${localRepo}::${archiveName}'");
$client->succeed('c=$(cat ${dataDir}/${keepFile}) && [[ "$c" == "${keepFileData}" ]]');
};
subtest "remote", sub {
my $borg = "BORG_RSH='ssh -oStrictHostKeyChecking=no -i /root/id_ed25519' borg";
$server->waitForUnit("sshd.service");
$client->waitForUnit("network.target");
$client->systemctl("start --wait borgbackup-job-remote");
$client->fail("systemctl is-failed borgbackup-job-remote");
# Make sure we can't access repos other than the specified one
$client->fail("$borg list borg\@server:wrong");
#TODO: Make sure that data is actually deleted
};
subtest "remoteAppendOnly", sub {
my $borg = "BORG_RSH='ssh -oStrictHostKeyChecking=no -i /root/id_ed25519.appendOnly' borg";
$server->waitForUnit("sshd.service");
$client->waitForUnit("network.target");
$client->systemctl("start --wait borgbackup-job-remoteAppendOnly");
$client->fail("systemctl is-failed borgbackup-job-remoteAppendOnly");
# Make sure we can't access repos other than the specified one
$client->fail("$borg list borg\@server:wrong");
#TODO: Make sure that data is not actually deleted
};
'';
})