diff options
| author | tv <tv@krebsco.de> | 2021-01-21 17:29:01 +0100 |
|---|---|---|
| committer | tv <tv@krebsco.de> | 2021-01-21 17:31:26 +0100 |
| commit | 1cd73df0c8694f491d40f93a796ea58f150e88dc (patch) | |
| tree | c5a6b066e0c76d917e86560f2f92a5dca07db149 | |
| parent | e2ed72a7802b0620bb1388a901b34e5a5fdc8a26 (diff) | |
krebs.backup fping: select fastest by elapsed time
| -rw-r--r-- | krebs/3modules/backup.nix | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/krebs/3modules/backup.nix b/krebs/3modules/backup.nix index c0b218c1..910324f3 100644 --- a/krebs/3modules/backup.nix +++ b/krebs/3modules/backup.nix @@ -226,10 +226,14 @@ let # XXX Is one ping enough to determine fastest address? fastest-address = host: '' - { ${pkgs.fping}/bin/fping </dev/null -a \ + { ${pkgs.fping}/bin/fping </dev/null -a -e \ ${concatMapStringsSep " " shell.escape (mapAttrsToList (_: net: head net.aliases) host.nets)} \ - | ${pkgs.coreutils}/bin/head -1; } + | ${pkgs.gnused}/bin/sed -r 's/^(\S+) \(([0-9.]+) ms\)$/\2\t\1/' \ + | ${pkgs.coreutils}/bin/sort -n \ + | ${pkgs.coreutils}/bin/cut -f2 \ + | ${pkgs.coreutils}/bin/head -n 1 + } ''; in out |