recepies/zfs/zfs-expire-snapshot.pl

#!/usr/bin/perl

use warnings;
use strict;

use DateTime;
use Data::Dump qw/dump/;

my $debug = 0;

my $config = {
        'default' => {
                14 => 5,
                30 => 10,
                60 => 30,
        },
        '212052' => {   # koha-dev
                7 => 10,
        },
        '212056' => {   # webpac2
                7 => 5,
        }
};

my $now = DateTime->now();

my $last_backup;

open(my $fs, '-|', 'zfs list -H');
while(<$fs>) {
        chomp;
        my ( $name, $used, $avail, $refer, $mountpoint ) = split(/\t/,$_,6);

        next unless $name =~ m{(.+)@(\d\d\d\d)-(\d\d)-(\d\d)};

        my $host = $1;

        my $date = DateTime->new( year => $2, month => $3, day => $4 );

        my $age = $now->delta_days( $date )->delta_days;

        my $op = ' ';
        my $last = 0;

        my $c = (grep { $host =~ m{\Q$_\E} } keys %$config)[0];
        $c = 'default' unless defined $c;

        warn "# config: $c\n" if $debug;

        my $h = $host;
        $h =~ s{,+/([^/]+)$}{}; # just hostname without path

        $c = $config->{$c} || die "can't find config for $c";

        warn "# c = ",dump($c) if $debug;

        my $keep_every_days;
        my $older_than_days;
        foreach ( keys %$c ) {
                $older_than_days = $_;
                $keep_every_days = $c->{$_};
                warn "## $host $age > $older_than_days" if $debug;
                last if $age > $older_than_days;
        }

        my $config_applied = '';

        if ( $age > $older_than_days ) {

                $config_applied = "> $older_than_days keep $keep_every_days";

                $last_backup->{$host} ||= $date;
                $last = $last_backup->{$host}->delta_days( $date )->delta_days;

                if ( $last && $last < $keep_every_days ) {
                        $op = 'D';
                } else {
                        $op = ' ';
                        $last_backup->{$host} = $date;
                }
        } else {
                $config_applied = 'none';
        }

        print "$op $name\t$used\t$refer\t$age\t$last\t$config_applied\n";

        system "zfs destroy $name" if $op eq 'D' && @ARGV;
}
1	#!/usr/bin/perl
2
3	use warnings;
4	use strict;
5
6	use DateTime;
7	use Data::Dump qw/dump/;
8
9	my $debug = 0;
10
11	my $config = {
12	'default' => {
13	14 => 5,
14	30 => 10,
15	60 => 30,
16	},
17	'212052' => { # koha-dev
18	7 => 10,
19	},
20	'212056' => { # webpac2
21	7 => 5,
22	}
23	};
24
25	my $now = DateTime->now();
26
27	my $last_backup;
28
29	open(my $fs, '-\|', 'zfs list -H');
30	while(<$fs>) {
31	chomp;
32	my ( $name, $used, $avail, $refer, $mountpoint ) = split(/\t/,$_,6);
33
34	next unless $name =~ m{(.+)@(\d\d\d\d)-(\d\d)-(\d\d)};
35
36	my $host = $1;
37
38	my $date = DateTime->new( year => $2, month => $3, day => $4 );
39
40	my $age = $now->delta_days( $date )->delta_days;
41
42	my $op = ' ';
43	my $last = 0;
44
45	my $c = (grep { $host =~ m{\Q$_\E} } keys %$config)[0];
46	$c = 'default' unless defined $c;
47
48	warn "# config: $c\n" if $debug;
49
50	my $h = $host;
51	$h =~ s{,+/([^/]+)$}{}; # just hostname without path
52
53	$c = $config->{$c} \|\| die "can't find config for $c";
54
55	warn "# c = ",dump($c) if $debug;
56
57	my $keep_every_days;
58	my $older_than_days;
59	foreach ( keys %$c ) {
60	$older_than_days = $_;
61	$keep_every_days = $c->{$_};
62	warn "## $host $age > $older_than_days" if $debug;
63	last if $age > $older_than_days;
64	}
65
66	my $config_applied = '';
67
68	if ( $age > $older_than_days ) {
69
70	$config_applied = "> $older_than_days keep $keep_every_days";
71
72	$last_backup->{$host} \|\|= $date;
73	$last = $last_backup->{$host}->delta_days( $date )->delta_days;
74
75	if ( $last && $last < $keep_every_days ) {
76	$op = 'D';
77	} else {
78	$op = ' ';
79	$last_backup->{$host} = $date;
80	}
81	} else {
82	$config_applied = 'none';
83	}
84
85	print "$op $name\t$used\t$refer\t$age\t$last\t$config_applied\n";
86
87	system "zfs destroy $name" if $op eq 'D' && @ARGV;
88	}