]>
git.proxmox.com Git - pve-container.git/blob - src/PVE/LXC/Migrate.pm
1 package PVE
::LXC
::Migrate
;
5 use PVE
::AbstractMigrate
;
7 use File
::Copy
; # fixme: remove
14 use base
qw(PVE::AbstractMigrate);
17 my ($self, $vmid, $code, @param) = @_;
19 return PVE
::LXC
::Config-
>lock_config($vmid, $code, @param);
23 my ($self, $vmid) = @_;
25 my $online = $self->{opts
}->{online
};
27 $self->{storecfg
} = PVE
::Storage
::config
();
30 my $conf = $self->{vmconf
} = PVE
::LXC
::Config-
>load_config($vmid);
32 PVE
::LXC
::Config-
>check_lock($conf);
35 if (PVE
::LXC
::check_running
($vmid)) {
36 die "lxc live migration is currently not implemented\n";
38 die "can't migrate running container without --online\n" if !$online;
42 my $force = $self->{opts
}->{force
} // 0;
43 my $need_activate = [];
45 PVE
::LXC
::Config-
>foreach_mountpoint($conf, sub {
46 my ($ms, $mountpoint) = @_;
48 my $volid = $mountpoint->{volume
};
50 # skip dev/bind mps when forced
51 if ($mountpoint->{type
} ne 'volume' && $force) {
54 my ($storage, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1) if $volid;
55 die "can't determine assigned storage for mountpoint '$ms'\n" if !$storage;
57 # check if storage is available on both nodes
58 my $scfg = PVE
::Storage
::storage_check_node
($self->{storecfg
}, $storage);
59 PVE
::Storage
::storage_check_node
($self->{storecfg
}, $storage, $self->{node
});
62 if ($scfg->{shared
}) {
63 # PVE::Storage::activate_storage checks this for non-shared storages
64 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
65 warn "Used shared storage '$storage' is not online on source node!\n"
66 if !$plugin->check_connection($storage, $scfg);
68 # only activate if not shared
69 push @$need_activate, $volid;
71 die "unable to migrate local mountpoint '$volid' while CT is running"
77 PVE
::Storage
::activate_volumes
($self->{storecfg
}, $need_activate);
79 # todo: test if VM uses local resources
82 my $cmd = [ @{$self->{rem_ssh
}}, '/bin/true' ];
83 eval { $self->cmd_quiet($cmd); };
84 die "Can't connect to destination address using public key\n" if $@;
90 my ($self, $vmid) = @_;
92 $self->log('info', "starting migration of CT $self->{vmid} to node '$self->{node}' ($self->{nodeip})");
94 my $conf = $self->{vmconf
};
95 $conf->{lock} = 'migrate';
96 PVE
::LXC
::Config-
>write_config($vmid, $conf);
98 if ($self->{running
}) {
99 $self->log('info', "container is running - using online migration");
102 $self->{volumes
} = [];
104 PVE
::LXC
::Config-
>foreach_mountpoint($conf, sub {
105 my ($ms, $mountpoint) = @_;
107 my $volid = $mountpoint->{volume
};
109 # already checked in prepare
110 if ($mountpoint->{type
} ne 'volume') {
111 $self->log('info', "ignoring mountpoint '$ms' ('$volid') of type " .
112 "'$mountpoint->{type}', migration is forced.");
116 my ($storage, $volname) = PVE
::Storage
::parse_volume_id
($volid);
117 my $scfg = PVE
::Storage
::storage_check_node
($self->{storecfg
}, $storage);
119 if (!$scfg->{shared
}) {
121 $self->log('info', "copy mountpoint '$ms' ($volid) to node ' $self->{node}'");
122 PVE
::Storage
::storage_migrate
($self->{storecfg
}, $volid, $self->{nodeip
}, $storage);
123 push @{$self->{volumes
}}, $volid;
125 $self->log('info', "mountpoint '$ms' is on shared storage '$storage'");
129 my $conffile = PVE
::LXC
::Config-
>config_file($vmid);
130 my $newconffile = PVE
::LXC
::Config-
>config_file($vmid, $self->{node
});
132 if ($self->{running
}) {
136 # make sure everything on (shared) storage is unmounted
137 # Note: we must be 100% sure, else we get data corruption because
138 # non-shared file system could be mounted twice (on shared storage)
140 PVE
::LXC
::umount_all
($vmid, $self->{storecfg
}, $conf);
142 #to be sure there are no active volumes
143 my $vollist = PVE
::LXC
::Config-
>get_vm_volumes($conf);
144 PVE
::Storage
::deactivate_volumes
($self->{storecfg
}, $vollist);
147 die "Failed to move config to node '$self->{node}' - rename failed: $!\n"
148 if !rename($conffile, $newconffile);
150 $self->{conf_migrated
} = 1;
154 my ($self, $vmid, $err) = @_;
156 $self->log('info', "aborting phase 1 - cleanup resources");
158 if ($self->{volumes
}) {
159 foreach my $volid (@{$self->{volumes
}}) {
160 $self->log('err', "found stale volume copy '$volid' on node '$self->{node}'");
161 # fixme: try to remove ?
167 my ($self, $vmid) = @_;
169 my $volids = $self->{volumes
};
171 # destroy local copies
172 foreach my $volid (@$volids) {
173 eval { PVE
::Storage
::vdisk_free
($self->{storecfg
}, $volid); };
175 $self->log('err', "removing local copy of '$volid' failed - $err");
177 last if $err =~ /^interrupted by signal$/;
183 my ($self, $vmid) = @_;
185 $self->log('info', "start final cleanup");
187 if (!$self->{conf_migrated
}) {
188 my $conf = $self->{vmconf
};
189 delete $conf->{lock};
191 eval { PVE
::LXC
::Config-
>write_config($vmid, $conf); };
193 $self->log('err', $err);
196 my $cmd = [ @{$self->{rem_ssh
}}, 'pct', 'unlock', $vmid ];
197 $self->cmd_logerr($cmd, errmsg
=> "failed to clear migrate lock");