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257 lines
9.1 KiB
Nix
257 lines
9.1 KiB
Nix
import ./make-test-python.nix ({ pkgs, ... }:
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let
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passphrase = "supersecret";
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dataDir = "/ran:dom/data";
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excludeFile = "not_this_file";
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keepFile = "important_file";
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keepFileData = "important_data";
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localRepo = "/root/back:up";
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# a repository on a file system which is not mounted automatically
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localRepoMount = "/noAutoMount";
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archiveName = "my_archive";
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remoteRepo = "borg@server:."; # No need to specify path
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privateKey = pkgs.writeText "id_ed25519" ''
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-----BEGIN OPENSSH PRIVATE KEY-----
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b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
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QyNTUxOQAAACBx8UB04Q6Q/fwDFjakHq904PYFzG9pU2TJ9KXpaPMcrwAAAJB+cF5HfnBe
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RwAAAAtzc2gtZWQyNTUxOQAAACBx8UB04Q6Q/fwDFjakHq904PYFzG9pU2TJ9KXpaPMcrw
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AAAEBN75NsJZSpt63faCuaD75Unko0JjlSDxMhYHAPJk2/xXHxQHThDpD9/AMWNqQer3Tg
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9gXMb2lTZMn0pelo8xyvAAAADXJzY2h1ZXR6QGt1cnQ=
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-----END OPENSSH PRIVATE KEY-----
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'';
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publicKey = ''
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ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHHxQHThDpD9/AMWNqQer3Tg9gXMb2lTZMn0pelo8xyv root@client
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'';
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privateKeyAppendOnly = pkgs.writeText "id_ed25519" ''
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-----BEGIN OPENSSH PRIVATE KEY-----
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b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
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QyNTUxOQAAACBacZuz1ELGQdhI7PF6dGFafCDlvh8pSEc4cHjkW0QjLwAAAJC9YTxxvWE8
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cQAAAAtzc2gtZWQyNTUxOQAAACBacZuz1ELGQdhI7PF6dGFafCDlvh8pSEc4cHjkW0QjLw
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AAAEAAhV7wTl5dL/lz+PF/d4PnZXuG1Id6L/mFEiGT1tZsuFpxm7PUQsZB2Ejs8Xp0YVp8
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IOW+HylIRzhweORbRCMvAAAADXJzY2h1ZXR6QGt1cnQ=
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-----END OPENSSH PRIVATE KEY-----
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'';
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publicKeyAppendOnly = ''
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ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFpxm7PUQsZB2Ejs8Xp0YVp8IOW+HylIRzhweORbRCMv root@client
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'';
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in {
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name = "borgbackup";
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meta = with pkgs.lib; {
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maintainers = with maintainers; [ dotlambda ];
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};
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nodes = {
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client = { ... }: {
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virtualisation.fileSystems.${localRepoMount} = {
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device = "tmpfs";
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fsType = "tmpfs";
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options = [ "noauto" ];
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};
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services.borgbackup.jobs = {
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local = {
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paths = dataDir;
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repo = localRepo;
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preHook = ''
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# Don't append a timestamp
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archiveName="${archiveName}"
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'';
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encryption = {
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mode = "repokey";
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inherit passphrase;
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};
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compression = "auto,zlib,9";
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prune.keep = {
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within = "1y";
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yearly = 5;
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};
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exclude = [ "*/${excludeFile}" ];
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postHook = "echo post";
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startAt = [ ]; # Do not run automatically
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};
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localMount = {
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paths = dataDir;
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repo = localRepoMount;
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encryption.mode = "none";
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startAt = [ ];
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};
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remote = {
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paths = dataDir;
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repo = remoteRepo;
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encryption.mode = "none";
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startAt = [ ];
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environment.BORG_RSH = "ssh -oStrictHostKeyChecking=no -i /root/id_ed25519";
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};
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remoteAppendOnly = {
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paths = dataDir;
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repo = remoteRepo;
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encryption.mode = "none";
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startAt = [ ];
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environment.BORG_RSH = "ssh -oStrictHostKeyChecking=no -i /root/id_ed25519.appendOnly";
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};
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commandSuccess = {
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dumpCommand = pkgs.writeScript "commandSuccess" ''
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echo -n test
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'';
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repo = remoteRepo;
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encryption.mode = "none";
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startAt = [ ];
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environment.BORG_RSH = "ssh -oStrictHostKeyChecking=no -i /root/id_ed25519";
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};
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commandFail = {
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dumpCommand = "${pkgs.coreutils}/bin/false";
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repo = remoteRepo;
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encryption.mode = "none";
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startAt = [ ];
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environment.BORG_RSH = "ssh -oStrictHostKeyChecking=no -i /root/id_ed25519";
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};
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sleepInhibited = {
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inhibitsSleep = true;
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# Blocks indefinitely while "backing up" so that we can try to suspend the local system while it's hung
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dumpCommand = pkgs.writeScript "sleepInhibited" ''
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cat /dev/zero
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'';
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repo = remoteRepo;
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encryption.mode = "none";
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startAt = [ ];
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environment.BORG_RSH = "ssh -oStrictHostKeyChecking=no -i /root/id_ed25519";
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};
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};
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};
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server = { ... }: {
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services.openssh = {
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enable = true;
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settings = {
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PasswordAuthentication = false;
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KbdInteractiveAuthentication = false;
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};
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};
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services.borgbackup.repos.repo1 = {
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authorizedKeys = [ publicKey ];
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path = "/data/borgbackup";
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};
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# Second repo to make sure the authorizedKeys options are merged correctly
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services.borgbackup.repos.repo2 = {
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authorizedKeysAppendOnly = [ publicKeyAppendOnly ];
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path = "/data/borgbackup";
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quota = ".5G";
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};
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};
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};
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testScript = ''
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start_all()
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client.fail('test -d "${remoteRepo}"')
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client.succeed(
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"cp ${privateKey} /root/id_ed25519"
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)
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client.succeed("chmod 0600 /root/id_ed25519")
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client.succeed(
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"cp ${privateKeyAppendOnly} /root/id_ed25519.appendOnly"
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)
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client.succeed("chmod 0600 /root/id_ed25519.appendOnly")
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client.succeed("mkdir -p ${dataDir}")
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client.succeed("touch ${dataDir}/${excludeFile}")
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client.succeed("echo '${keepFileData}' > ${dataDir}/${keepFile}")
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with subtest("local"):
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borg = "BORG_PASSPHRASE='${passphrase}' borg"
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client.systemctl("start --wait borgbackup-job-local")
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client.fail("systemctl is-failed borgbackup-job-local")
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# Make sure exactly one archive has been created
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assert int(client.succeed("{} list '${localRepo}' | wc -l".format(borg))) > 0
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# Make sure excludeFile has been excluded
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client.fail(
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"{} list '${localRepo}::${archiveName}' | grep -qF '${excludeFile}'".format(borg)
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)
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# Make sure keepFile has the correct content
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client.succeed("{} extract '${localRepo}::${archiveName}'".format(borg))
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assert "${keepFileData}" in client.succeed("cat ${dataDir}/${keepFile}")
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# Make sure the same is true when using `borg mount`
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client.succeed(
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"mkdir -p /mnt/borg && {} mount '${localRepo}::${archiveName}' /mnt/borg".format(
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borg
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)
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)
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assert "${keepFileData}" in client.succeed(
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"cat /mnt/borg/${dataDir}/${keepFile}"
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)
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with subtest("localMount"):
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# the file system for the repo should not be already mounted
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client.fail("mount | grep ${localRepoMount}")
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# ensure trying to write to the mountpoint before the fs is mounted fails
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client.succeed("chattr +i ${localRepoMount}")
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borg = "borg"
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client.systemctl("start --wait borgbackup-job-localMount")
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client.fail("systemctl is-failed borgbackup-job-localMount")
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# Make sure exactly one archive has been created
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assert int(client.succeed("{} list '${localRepoMount}' | wc -l".format(borg))) > 0
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with subtest("remote"):
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borg = "BORG_RSH='ssh -oStrictHostKeyChecking=no -i /root/id_ed25519' borg"
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server.wait_for_unit("sshd.service")
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client.wait_for_unit("network.target")
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client.systemctl("start --wait borgbackup-job-remote")
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client.fail("systemctl is-failed borgbackup-job-remote")
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# Make sure we can't access repos other than the specified one
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client.fail("{} list borg\@server:wrong".format(borg))
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# TODO: Make sure that data is actually deleted
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with subtest("remoteAppendOnly"):
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borg = (
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"BORG_RSH='ssh -oStrictHostKeyChecking=no -i /root/id_ed25519.appendOnly' borg"
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)
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server.wait_for_unit("sshd.service")
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client.wait_for_unit("network.target")
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client.systemctl("start --wait borgbackup-job-remoteAppendOnly")
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client.fail("systemctl is-failed borgbackup-job-remoteAppendOnly")
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# Make sure we can't access repos other than the specified one
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client.fail("{} list borg\@server:wrong".format(borg))
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# TODO: Make sure that data is not actually deleted
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with subtest("commandSuccess"):
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server.wait_for_unit("sshd.service")
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client.wait_for_unit("network.target")
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client.systemctl("start --wait borgbackup-job-commandSuccess")
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client.fail("systemctl is-failed borgbackup-job-commandSuccess")
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id = client.succeed("borg-job-commandSuccess list | tail -n1 | cut -d' ' -f1").strip()
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client.succeed(f"borg-job-commandSuccess extract ::{id} stdin")
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assert "test" == client.succeed("cat stdin")
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with subtest("commandFail"):
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server.wait_for_unit("sshd.service")
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client.wait_for_unit("network.target")
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client.systemctl("start --wait borgbackup-job-commandFail")
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client.succeed("systemctl is-failed borgbackup-job-commandFail")
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with subtest("sleepInhibited"):
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server.wait_for_unit("sshd.service")
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client.wait_for_unit("network.target")
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client.fail("systemd-inhibit --list | grep -q borgbackup")
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client.systemctl("start borgbackup-job-sleepInhibited")
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client.wait_until_succeeds("systemd-inhibit --list | grep -q borgbackup")
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client.systemctl("stop borgbackup-job-sleepInhibited")
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'';
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})
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