mirror of
https://git.proxmox.com/git/qemu-server
synced 2025-04-30 01:28:39 +00:00
move code from qmigrate into PVE/QemuMigrate.pm
and make migrate a subcommand of qm
This commit is contained in:
parent
694fcad480
commit
3ea94c60d2
5
Makefile
5
Makefile
@ -57,7 +57,7 @@ qm.1.pod: qm PVE/QemuServer.pm
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vm.conf.5.pod: gen-vmconf-pod.pl PVE/QemuServer.pm
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vm.conf.5.pod: gen-vmconf-pod.pl PVE/QemuServer.pm
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perl -I. ./gen-vmconf-pod.pl >$@
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perl -I. ./gen-vmconf-pod.pl >$@
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PKGSOURCES=qm qm.1.gz qm.1.pod qmigrate qmigrate.1.gz qmrestore qmrestore.1.gz sparsecp vmtar qemu.init.d qmupdate control vm.conf.5.pod vm.conf.5.gz
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PKGSOURCES=qm qm.1.gz qm.1.pod qmrestore qmrestore.1.gz sparsecp vmtar qemu.init.d qmupdate control vm.conf.5.pod vm.conf.5.gz
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.PHONY: install
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.PHONY: install
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install: ${PKGSOURCES}
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install: ${PKGSOURCES}
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@ -72,17 +72,14 @@ install: ${PKGSOURCES}
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install -m 0644 pve-usb.cfg ${DESTDIR}/usr/share/${PACKAGE}
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install -m 0644 pve-usb.cfg ${DESTDIR}/usr/share/${PACKAGE}
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make -C PVE install
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make -C PVE install
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install -m 0755 qm ${DESTDIR}${SBINDIR}
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install -m 0755 qm ${DESTDIR}${SBINDIR}
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install -m 0755 qmigrate ${DESTDIR}${SBINDIR}
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install -m 0755 qmrestore ${DESTDIR}${SBINDIR}
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install -m 0755 qmrestore ${DESTDIR}${SBINDIR}
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install -D -m 0755 qmupdate ${DESTDIR}${VARLIBDIR}/qmupdate
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install -D -m 0755 qmupdate ${DESTDIR}${VARLIBDIR}/qmupdate
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install -D -m 0755 qemu.init.d ${DESTDIR}/etc/init.d/${PACKAGE}
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install -D -m 0755 qemu.init.d ${DESTDIR}/etc/init.d/${PACKAGE}
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install -m 0755 pve-bridge ${DESTDIR}${VARLIBDIR}/pve-bridge
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install -m 0755 pve-bridge ${DESTDIR}${VARLIBDIR}/pve-bridge
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install -s -m 0755 vmtar ${DESTDIR}${LIBDIR}
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install -s -m 0755 vmtar ${DESTDIR}${LIBDIR}
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install -s -m 0755 sparsecp ${DESTDIR}${LIBDIR}
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install -s -m 0755 sparsecp ${DESTDIR}${LIBDIR}
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# pod2man -n qemu-server -s 1 -r "proxmox 1.0" -c "Proxmox Documentation" <qemu-server.pod | gzip -9 > ${DESTDIR}/usr/share/man/man1/qemu-server.1.gz
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install -m 0644 qm.1.gz ${DESTDIR}/usr/share/man/man1/
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install -m 0644 qm.1.gz ${DESTDIR}/usr/share/man/man1/
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install -m 0644 qm.1.pod ${DESTDIR}/${PODDIR}
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install -m 0644 qm.1.pod ${DESTDIR}/${PODDIR}
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install -m 0644 qmigrate.1.gz ${DESTDIR}/usr/share/man/man1/
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install -m 0644 qmrestore.1.gz ${DESTDIR}/usr/share/man/man1/
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install -m 0644 qmrestore.1.gz ${DESTDIR}/usr/share/man/man1/
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install -m 0644 vm.conf.5.pod ${DESTDIR}/${PODDIR}
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install -m 0644 vm.conf.5.pod ${DESTDIR}/${PODDIR}
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install -m 0644 vm.conf.5.gz ${DESTDIR}/usr/share/man/man5/
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install -m 0644 vm.conf.5.gz ${DESTDIR}/usr/share/man/man5/
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108
PVE/API2/Qemu.pm
108
PVE/API2/Qemu.pm
@ -11,6 +11,7 @@ use PVE::Storage;
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use PVE::JSONSchema qw(get_standard_option);
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use PVE::JSONSchema qw(get_standard_option);
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use PVE::RESTHandler;
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use PVE::RESTHandler;
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use PVE::QemuServer;
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use PVE::QemuServer;
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use PVE::QemuMigrate;
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use PVE::RPCEnvironment;
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use PVE::RPCEnvironment;
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use PVE::AccessControl;
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use PVE::AccessControl;
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use PVE::INotify;
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use PVE::INotify;
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@ -181,6 +182,7 @@ __PACKAGE__->register_method({
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{ subdir => 'status' },
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{ subdir => 'status' },
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{ subdir => 'unlink' },
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{ subdir => 'unlink' },
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{ subdir => 'vncproxy' },
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{ subdir => 'vncproxy' },
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{ subdir => 'migrate' },
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{ subdir => 'rrd' },
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{ subdir => 'rrd' },
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{ subdir => 'rrddata' },
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{ subdir => 'rrddata' },
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];
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];
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@ -321,11 +323,7 @@ __PACKAGE__->register_method({
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{
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{
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node => get_standard_option('pve-node'),
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node => get_standard_option('pve-node'),
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vmid => get_standard_option('pve-vmid'),
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vmid => get_standard_option('pve-vmid'),
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skiplock => {
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skiplock => get_standard_option('skiplock'),
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description => "Ignore locks - only root is allowed to use this option.",
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type => 'boolean',
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optional => 1,
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},
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delete => {
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delete => {
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type => 'string', format => 'pve-configid-list',
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type => 'string', format => 'pve-configid-list',
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description => "A list of settings you want to delete.",
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description => "A list of settings you want to delete.",
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@ -355,12 +353,11 @@ __PACKAGE__->register_method({
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my $node = extract_param($param, 'node');
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my $node = extract_param($param, 'node');
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# fixme: fork worker?
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my $vmid = extract_param($param, 'vmid');
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my $vmid = extract_param($param, 'vmid');
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my $skiplock = extract_param($param, 'skiplock');
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my $skiplock = extract_param($param, 'skiplock');
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raise_param_exc({ skiplock => "Only root may use this option." }) if $user ne 'root@pam';
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raise_param_exc({ skiplock => "Only root may use this option." })
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if $skiplock && $user ne 'root@pam';
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my $delete = extract_param($param, 'delete');
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my $delete = extract_param($param, 'delete');
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my $force = extract_param($param, 'force');
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my $force = extract_param($param, 'force');
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@ -510,6 +507,7 @@ __PACKAGE__->register_method({
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properties => {
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properties => {
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node => get_standard_option('pve-node'),
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node => get_standard_option('pve-node'),
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vmid => get_standard_option('pve-vmid'),
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vmid => get_standard_option('pve-vmid'),
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skiplock => get_standard_option('skiplock'),
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},
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},
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},
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},
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returns => { type => 'null' },
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returns => { type => 'null' },
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@ -524,7 +522,7 @@ __PACKAGE__->register_method({
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my $skiplock = $param->{skiplock};
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my $skiplock = $param->{skiplock};
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raise_param_exc({ skiplock => "Only root may use this option." })
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raise_param_exc({ skiplock => "Only root may use this option." })
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if $user ne 'root@pam';
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if $skiplock && $user ne 'root@pam';
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my $storecfg = PVE::Storage::config();
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my $storecfg = PVE::Storage::config();
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@ -692,18 +690,16 @@ __PACKAGE__->register_method({
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method => 'PUT',
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method => 'PUT',
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protected => 1,
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protected => 1,
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proxyto => 'node',
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proxyto => 'node',
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description => "Set virtual machine status.",
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description => "Set virtual machine status (execute vm commands).",
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parameters => {
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parameters => {
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additionalProperties => 0,
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additionalProperties => 0,
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properties => {
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properties => {
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node => get_standard_option('pve-node'),
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node => get_standard_option('pve-node'),
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vmid => get_standard_option('pve-vmid'),
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vmid => get_standard_option('pve-vmid'),
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skiplock => {
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skiplock => get_standard_option('skiplock'),
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description => "Ignore locks - only root is allowed to use this option.",
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stateuri => get_standard_option('pve-qm-stateuri'),
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type => 'boolean',
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optional => 1,
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},
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command => {
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command => {
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description => "The command to execute.",
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type => 'string',
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type => 'string',
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enum => [qw(start stop reset shutdown cad suspend resume) ],
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enum => [qw(start stop reset shutdown cad suspend resume) ],
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},
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},
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@ -719,22 +715,22 @@ __PACKAGE__->register_method({
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my $node = extract_param($param, 'node');
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my $node = extract_param($param, 'node');
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# fixme: proxy to correct node
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# fixme: fork worker?
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my $vmid = extract_param($param, 'vmid');
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my $vmid = extract_param($param, 'vmid');
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my $stateuri = extract_param($param, 'stateuri');
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raise_param_exc({ stateuri => "Only root may use this option." })
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if $stateuri && $user ne 'root@pam';
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my $skiplock = extract_param($param, 'skiplock');
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my $skiplock = extract_param($param, 'skiplock');
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raise_param_exc({ skiplock => "Only root may use this option." })
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raise_param_exc({ skiplock => "Only root may use this option." })
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if $user ne 'root@pam';
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if $skiplock && $user ne 'root@pam';
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my $command = $param->{command};
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my $command = $param->{command};
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my $storecfg = PVE::Storage::config();
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my $storecfg = PVE::Storage::config();
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if ($command eq 'start') {
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if ($command eq 'start') {
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my $statefile = undef; # fixme: --incoming parameter
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PVE::QemuServer::vm_start($storecfg, $vmid, $stateuri, $skiplock);
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PVE::QemuServer::vm_start($storecfg, $vmid, $statefile, $skiplock);
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} elsif ($command eq 'stop') {
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} elsif ($command eq 'stop') {
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PVE::QemuServer::vm_stop($vmid, $skiplock);
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PVE::QemuServer::vm_stop($vmid, $skiplock);
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} elsif ($command eq 'reset') {
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} elsif ($command eq 'reset') {
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@ -754,5 +750,75 @@ __PACKAGE__->register_method({
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return undef;
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return undef;
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}});
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}});
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__PACKAGE__->register_method({
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name => 'migrate_vm',
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path => '{vmid}/migrate',
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method => 'POST',
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protected => 1,
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proxyto => 'node',
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description => "Migrate virtual machine. Creates a new migration task.",
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parameters => {
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additionalProperties => 0,
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properties => {
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node => get_standard_option('pve-node'),
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vmid => get_standard_option('pve-vmid'),
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target => get_standard_option('pve-node', { description => "Target node." }),
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online => {
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type => 'boolean',
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description => "Use online/live migration.",
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optional => 1,
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},
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force => {
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type => 'boolean',
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description => "Allow to migrate VMs which use local devices. Only root may use this option.",
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optional => 1,
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},
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},
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},
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returns => {
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type => 'string',
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description => "the task ID.",
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},
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code => sub {
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my ($param) = @_;
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my $rpcenv = PVE::RPCEnvironment::get();
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my $user = $rpcenv->get_user();
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my $target = extract_param($param, 'target');
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my $localnode = PVE::INotify::nodename();
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raise_param_exc({ target => "target is local node."}) if $target eq $localnode;
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PVE::Cluster::check_cfs_quorum();
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PVE::Cluster::check_node_exists($target);
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my $targetip = PVE::Cluster::remote_node_ip($target);
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my $vmid = extract_param($param, 'vmid');
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raise_param_exc({ force => "Only root may use this option." }) if $user ne 'root@pam';
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# test if VM exists
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PVE::QemuServer::load_config($vmid);
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# try to detect errors early
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if (PVE::QemuServer::check_running($vmid)) {
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die "cant migrate running VM without --online\n"
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if !$param->{online};
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}
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my $realcmd = sub {
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my $upid = shift;
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PVE::QemuMigrate::migrate($target, $targetip, $vmid, $param->{online}, $param->{force});
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};
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my $upid = $rpcenv->fork_worker('qmigrate', $vmid, $user, $realcmd);
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return $upid;
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}});
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1;
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1;
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@ -2,5 +2,6 @@
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.PHONY: install
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.PHONY: install
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install:
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install:
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install -D -m 0644 QemuServer.pm ${DESTDIR}${PERLDIR}/PVE/QemuServer.pm
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install -D -m 0644 QemuServer.pm ${DESTDIR}${PERLDIR}/PVE/QemuServer.pm
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install -D -m 0644 QemuMigrate.pm ${DESTDIR}${PERLDIR}/PVE/QemuMigrate.pm
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make -C VZDump install
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make -C VZDump install
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make -C API2 install
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make -C API2 install
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609
qmigrate → PVE/QemuMigrate.pm
Executable file → Normal file
609
qmigrate → PVE/QemuMigrate.pm
Executable file → Normal file
@ -1,29 +1,18 @@
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#!/usr/bin/perl -w
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package PVE::QemuMigrate;
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# fixme: kvm > 88 has more migration options and verbose status
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# fixme: bwlimit ?
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use strict;
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use strict;
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use Getopt::Long;
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use warnings;
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use PVE::SafeSyslog;
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use IO::Select;
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use IPC::Open3;
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use IPC::Open2;
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use PVE::Cluster;
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use PVE::INotify;
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use PVE::Tools qw(run_command);
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use PVE::JSONSchema qw(get_standard_option);
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use PVE::QemuServer;
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use PVE::Storage;
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use POSIX qw(strftime);
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use POSIX qw(strftime);
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use Data::Dumper; # fixme: remove
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use IO::File;
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use PVE::RESTHandler;
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use IPC::Open2;
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use PVE::Tools qw(run_command);
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use PVE::SafeSyslog;
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use PVE::INotify;
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use PVE::Cluster;
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use PVE::Storage;
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use PVE::QemuServer;
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use base qw(PVE::RESTHandler);
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my $delayed_interrupt = 0;
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die "please run as root\n" if $> != 0;
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$ENV{'PATH'} = '/sbin:/bin:/usr/sbin:/usr/bin';
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# blowfish is a fast block cipher, much faster then 3des
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# blowfish is a fast block cipher, much faster then 3des
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my @ssh_opts = ('-c', 'blowfish', '-o', 'BatchMode=yes');
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my @ssh_opts = ('-c', 'blowfish', '-o', 'BatchMode=yes');
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@ -31,199 +20,6 @@ my @ssh_cmd = ('/usr/bin/ssh', @ssh_opts);
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my @scp_cmd = ('/usr/bin/scp', @ssh_opts);
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my @scp_cmd = ('/usr/bin/scp', @ssh_opts);
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my $qm_cmd = '/usr/sbin/qm';
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my $qm_cmd = '/usr/sbin/qm';
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|
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$ENV{RSYNC_RSH} = join(' ', @ssh_cmd);
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|
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|
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my $localnode = PVE::INotify::nodename();
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|
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initlog('qmigrate');
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PVE::Cluster::cfs_update();
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|
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# global vars, initialized later
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my @rem_ssh;
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my $vmid;
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|
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my $node;
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my $nodeip;
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my $storecfg = PVE::Storage::config();
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my $delayed_interrupt = 0;
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|
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$SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
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logmsg('err', "received interrupt - delayed");
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|
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$delayed_interrupt = 1;
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};
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|
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# we only use RESTHandler for automatic parameter verification
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|
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__PACKAGE__->register_method({
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|
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name => 'qmigrate',
|
|
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path => 'qmigrate',
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|
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method => 'POST',
|
|
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description => "Migrate VMs to other cluster nodes.",
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|
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parameters => {
|
|
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additionalProperties => 0,
|
|
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properties => {
|
|
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vmid => get_standard_option('pve-vmid'),
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|
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node => get_standard_option('pve-node', {
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|
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description => "Target node" }),
|
|
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online => {
|
|
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type => 'boolean',
|
|
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description => "Use online/live migration.",
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|
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optional => 1,
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|
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},
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|
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force => {
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|
||||||
type => 'boolean',
|
|
||||||
description => "Allow to migrate VMs which use local devices.",
|
|
||||||
optional => 1,
|
|
||||||
},
|
|
||||||
},
|
|
||||||
},
|
|
||||||
returns => { type => 'null'},
|
|
||||||
code => sub {
|
|
||||||
my ($param) = @_;
|
|
||||||
|
|
||||||
my $errors;
|
|
||||||
|
|
||||||
my $starttime = time();
|
|
||||||
|
|
||||||
# initialize global variables
|
|
||||||
$vmid = $param->{vmid};
|
|
||||||
$node = $param->{node};
|
|
||||||
|
|
||||||
die "node is local\n" if $node eq $localnode;
|
|
||||||
|
|
||||||
PVE::Cluster::check_cfs_quorum();
|
|
||||||
|
|
||||||
PVE::Cluster::check_node_exists($node);
|
|
||||||
|
|
||||||
$nodeip = PVE::Cluster::remote_node_ip($node);
|
|
||||||
@rem_ssh = (@ssh_cmd, "root\@$nodeip");
|
|
||||||
|
|
||||||
# lock config during migration
|
|
||||||
PVE::QemuServer::lock_config($vmid, sub {
|
|
||||||
|
|
||||||
eval_int(\&prepare);
|
|
||||||
die $@ if $@;
|
|
||||||
|
|
||||||
my $conf = PVE::QemuServer::load_config($vmid);
|
|
||||||
|
|
||||||
PVE::QemuServer::check_lock($conf);
|
|
||||||
|
|
||||||
my $running = 0;
|
|
||||||
if (PVE::QemuServer::check_running($vmid)) {
|
|
||||||
die "cant migrate running VM without --online\n" if !$param->{online};
|
|
||||||
$running = 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
my $rhash = {};
|
|
||||||
eval_int (sub { phase1($conf, $rhash, $running, $param->{force}); });
|
|
||||||
my $err = $@;
|
|
||||||
|
|
||||||
if ($err) {
|
|
||||||
if ($rhash->{clearlock}) {
|
|
||||||
my $unset = { lock => 1 };
|
|
||||||
eval { PVE::QemuServer::change_config_nolock($vmid, {}, $unset, 1) };
|
|
||||||
logmsg('err', $@) if $@;
|
|
||||||
}
|
|
||||||
if ($rhash->{volumes}) {
|
|
||||||
foreach my $volid (@{$rhash->{volumes}}) {
|
|
||||||
logmsg('err', "found stale volume copy '$volid' on node '$node'");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
die $err;
|
|
||||||
}
|
|
||||||
|
|
||||||
# vm is now owned by other node
|
|
||||||
my $volids = $rhash->{volumes};
|
|
||||||
|
|
||||||
if ($running) {
|
|
||||||
|
|
||||||
$rhash = {};
|
|
||||||
eval_int(sub { phase2($conf, $rhash); });
|
|
||||||
my $err = $@;
|
|
||||||
|
|
||||||
# always kill tunnel
|
|
||||||
if ($rhash->{tunnel}) {
|
|
||||||
eval_int(sub { finish_tunnel($rhash->{tunnel}) });
|
|
||||||
if ($@) {
|
|
||||||
logmsg('err', "stopping tunnel failed - $@");
|
|
||||||
$errors = 1;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
# always stop local VM - no interrupts possible
|
|
||||||
eval { PVE::QemuServer::vm_stop($vmid, 1); };
|
|
||||||
if ($@) {
|
|
||||||
logmsg('err', "stopping vm failed - $@");
|
|
||||||
$errors = 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if ($err) {
|
|
||||||
$errors = 1;
|
|
||||||
logmsg('err', "online migrate failure - $err");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
# finalize -- clear migrate lock
|
|
||||||
eval_int(sub {
|
|
||||||
my $cmd = [ @rem_ssh, $qm_cmd, 'unlock', $vmid ];
|
|
||||||
run_command($cmd);
|
|
||||||
});
|
|
||||||
if ($@) {
|
|
||||||
logmsg('err', "failed to clear migrate lock - $@");
|
|
||||||
$errors = 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
# destroy local copies
|
|
||||||
foreach my $volid (@$volids) {
|
|
||||||
eval_int(sub { PVE::Storage::vdisk_free($storecfg, $volid); });
|
|
||||||
my $err = $@;
|
|
||||||
|
|
||||||
if ($err) {
|
|
||||||
logmsg('err', "removing local copy of '$volid' failed - $err");
|
|
||||||
$errors = 1;
|
|
||||||
|
|
||||||
last if $err =~ /^interrupted by signal$/;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
});
|
|
||||||
|
|
||||||
my $err = $@;
|
|
||||||
|
|
||||||
my $delay = time() - $starttime;
|
|
||||||
my $mins = int($delay/60);
|
|
||||||
my $secs = $delay - $mins*60;
|
|
||||||
my $hours = int($mins/60);
|
|
||||||
$mins = $mins - $hours*60;
|
|
||||||
|
|
||||||
my $duration = sprintf "%02d:%02d:%02d", $hours, $mins, $secs;
|
|
||||||
|
|
||||||
if ($err) {
|
|
||||||
logmsg('err', $err) if $err;
|
|
||||||
logmsg('info', "migration aborted");
|
|
||||||
exit(-1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if ($errors) {
|
|
||||||
logmsg('info', "migration finished with problems (duration $duration)");
|
|
||||||
exit(-1);
|
|
||||||
}
|
|
||||||
|
|
||||||
logmsg('info', "migration finished successfuly (duration $duration)");
|
|
||||||
|
|
||||||
return undef;
|
|
||||||
}});
|
|
||||||
|
|
||||||
if ((scalar (@ARGV) == 0) ||
|
|
||||||
(scalar (@ARGV) == 1 && $ARGV[0] eq 'help')) {
|
|
||||||
print __PACKAGE__->usage_str('qmigrate', '', ['node', 'vmid'], {}, 'long');
|
|
||||||
} else {
|
|
||||||
__PACKAGE__->cli_handler('qmigrate', 'qmigrate', \@ARGV, ['node', 'vmid']);
|
|
||||||
}
|
|
||||||
|
|
||||||
exit(0);
|
|
||||||
|
|
||||||
sub logmsg {
|
sub logmsg {
|
||||||
my ($level, $msg) = @_;
|
my ($level, $msg) = @_;
|
||||||
|
|
||||||
@ -265,99 +61,6 @@ sub eval_int {
|
|||||||
};
|
};
|
||||||
}
|
}
|
||||||
|
|
||||||
sub prepare {
|
|
||||||
|
|
||||||
my $conffile = PVE::QemuServer::config_file($vmid);
|
|
||||||
die "VM $vmid does not exist on this node\n" if ! -f $conffile;
|
|
||||||
|
|
||||||
# test ssh connection
|
|
||||||
my $cmd = [ @rem_ssh, '/bin/true' ];
|
|
||||||
eval { run_command($cmd); };
|
|
||||||
die "Can't connect to destination address using public key\n" if $@;
|
|
||||||
}
|
|
||||||
|
|
||||||
sub sync_disks {
|
|
||||||
my ($conf, $rhash, $running) = @_;
|
|
||||||
|
|
||||||
logmsg('info', "copying disk images");
|
|
||||||
|
|
||||||
my $res = [];
|
|
||||||
|
|
||||||
eval {
|
|
||||||
|
|
||||||
my $volhash = {};
|
|
||||||
my $cdromhash = {};
|
|
||||||
|
|
||||||
# get list from PVE::Storage (for unused volumes)
|
|
||||||
my $dl = PVE::Storage::vdisk_list($storecfg, undef, $vmid);
|
|
||||||
PVE::Storage::foreach_volid($dl, sub {
|
|
||||||
my ($volid, $sid, $volname) = @_;
|
|
||||||
|
|
||||||
my $scfg = PVE::Storage::storage_config($storecfg, $sid);
|
|
||||||
|
|
||||||
return if $scfg->{shared};
|
|
||||||
|
|
||||||
$volhash->{$volid} = 1;
|
|
||||||
});
|
|
||||||
|
|
||||||
# and add used,owned/non-shared disks (just to be sure we have all)
|
|
||||||
|
|
||||||
my $sharedvm = 1;
|
|
||||||
PVE::QemuServer::foreach_drive($conf, sub {
|
|
||||||
my ($ds, $drive) = @_;
|
|
||||||
|
|
||||||
my $volid = $drive->{file};
|
|
||||||
return if !$volid;
|
|
||||||
|
|
||||||
die "cant migrate local file/device '$volid'\n" if $volid =~ m|^/|;
|
|
||||||
|
|
||||||
if (PVE::QemuServer::drive_is_cdrom($drive)) {
|
|
||||||
die "cant migrate local cdrom drive\n" if $volid eq 'cdrom';
|
|
||||||
return if $volid eq 'none';
|
|
||||||
$cdromhash->{$volid} = 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
|
|
||||||
|
|
||||||
my $scfg = PVE::Storage::storage_config($storecfg, $sid);
|
|
||||||
|
|
||||||
return if $scfg->{shared};
|
|
||||||
|
|
||||||
die "can't migrate local cdrom '$volid'\n" if $cdromhash->{$volid};
|
|
||||||
|
|
||||||
$sharedvm = 0;
|
|
||||||
|
|
||||||
my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
|
|
||||||
|
|
||||||
die "can't migrate volume '$volid' - owned by other VM (owner = VM $owner)\n"
|
|
||||||
if !$owner || ($owner != $vmid);
|
|
||||||
|
|
||||||
$volhash->{$volid} = 1;
|
|
||||||
});
|
|
||||||
|
|
||||||
if ($running && !$sharedvm) {
|
|
||||||
die "can't do online migration - VM uses local disks\n";
|
|
||||||
}
|
|
||||||
|
|
||||||
# do some checks first
|
|
||||||
foreach my $volid (keys %$volhash) {
|
|
||||||
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
|
|
||||||
my $scfg = PVE::Storage::storage_config($storecfg, $sid);
|
|
||||||
|
|
||||||
die "can't migrate '$volid' - storagy type '$scfg->{type}' not supported\n"
|
|
||||||
if $scfg->{type} ne 'dir';
|
|
||||||
}
|
|
||||||
|
|
||||||
foreach my $volid (keys %$volhash) {
|
|
||||||
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
|
|
||||||
push @{$rhash->{volumes}}, $volid;
|
|
||||||
PVE::Storage::storage_migrate($storecfg, $volid, $nodeip, $sid);
|
|
||||||
}
|
|
||||||
|
|
||||||
};
|
|
||||||
die "Failed to sync data - $@" if $@;
|
|
||||||
}
|
|
||||||
|
|
||||||
sub fork_command_pipe {
|
sub fork_command_pipe {
|
||||||
my ($cmd) = @_;
|
my ($cmd) = @_;
|
||||||
|
|
||||||
@ -435,7 +138,7 @@ sub run_with_timeout {
|
|||||||
}
|
}
|
||||||
|
|
||||||
sub fork_tunnel {
|
sub fork_tunnel {
|
||||||
my ($lport, $rport) = @_;
|
my ($nodeip, $lport, $rport) = @_;
|
||||||
|
|
||||||
my $cmd = [@ssh_cmd, '-o', 'BatchMode=yes',
|
my $cmd = [@ssh_cmd, '-o', 'BatchMode=yes',
|
||||||
'-L', "$lport:localhost:$rport", $nodeip,
|
'-L', "$lport:localhost:$rport", $nodeip,
|
||||||
@ -480,13 +183,247 @@ sub finish_tunnel {
|
|||||||
die $err if $err;
|
die $err if $err;
|
||||||
}
|
}
|
||||||
|
|
||||||
sub phase1 {
|
sub migrate {
|
||||||
my ($conf, $rhash, $running, $force) = @_;
|
my ($node, $nodeip, $vmid, $online, $force) = @_;
|
||||||
|
|
||||||
logmsg('info', "starting migration of VM $vmid to node '$node' ($nodeip)");
|
my $starttime = time();
|
||||||
|
|
||||||
|
my $rem_ssh = [@ssh_cmd, "root\@$nodeip"];
|
||||||
|
|
||||||
|
local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
|
||||||
|
logmsg('err', "received interrupt - delayed");
|
||||||
|
$delayed_interrupt = 1;
|
||||||
|
};
|
||||||
|
|
||||||
|
local $ENV{RSYNC_RSH} = join(' ', @ssh_cmd);
|
||||||
|
|
||||||
|
my $session = {
|
||||||
|
vmid => $vmid,
|
||||||
|
node => $node,
|
||||||
|
nodeip => $nodeip,
|
||||||
|
force => $force,
|
||||||
|
storecfg => PVE::Storage::config(),
|
||||||
|
rem_ssh => $rem_ssh,
|
||||||
|
};
|
||||||
|
|
||||||
|
my $errors;
|
||||||
|
|
||||||
|
# lock config during migration
|
||||||
|
eval { PVE::QemuServer::lock_config($vmid, sub {
|
||||||
|
|
||||||
|
eval_int(sub { prepare($session); });
|
||||||
|
die $@ if $@;
|
||||||
|
|
||||||
|
my $conf = PVE::QemuServer::load_config($vmid);
|
||||||
|
|
||||||
|
PVE::QemuServer::check_lock($conf);
|
||||||
|
|
||||||
|
my $running = 0;
|
||||||
|
if (my $pid = PVE::QemuServer::check_running($vmid)) {
|
||||||
|
die "cant migrate running VM without --online\n" if !$online;
|
||||||
|
$running = $pid;
|
||||||
|
}
|
||||||
|
|
||||||
|
my $rhash = {};
|
||||||
|
eval_int (sub { phase1($session, $conf, $rhash, $running); });
|
||||||
|
my $err = $@;
|
||||||
|
|
||||||
|
if ($err) {
|
||||||
|
if ($rhash->{clearlock}) {
|
||||||
|
my $unset = { lock => 1 };
|
||||||
|
eval { PVE::QemuServer::change_config_nolock($session->{vmid}, {}, $unset, 1) };
|
||||||
|
logmsg('err', $@) if $@;
|
||||||
|
}
|
||||||
|
if ($rhash->{volumes}) {
|
||||||
|
foreach my $volid (@{$rhash->{volumes}}) {
|
||||||
|
logmsg('err', "found stale volume copy '$volid' on node '$session->{node}'");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
die $err;
|
||||||
|
}
|
||||||
|
|
||||||
|
# vm is now owned by other node
|
||||||
|
my $volids = $rhash->{volumes};
|
||||||
|
|
||||||
|
if ($running) {
|
||||||
|
|
||||||
|
$rhash = {};
|
||||||
|
eval_int(sub { phase2($session, $conf, $rhash); });
|
||||||
|
my $err = $@;
|
||||||
|
|
||||||
|
# always kill tunnel
|
||||||
|
if ($rhash->{tunnel}) {
|
||||||
|
eval_int(sub { finish_tunnel($rhash->{tunnel}) });
|
||||||
|
if ($@) {
|
||||||
|
logmsg('err', "stopping tunnel failed - $@");
|
||||||
|
$errors = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
# fixme: ther is no config file, so this will never work
|
||||||
|
# fixme: use kill(9, $running) to make sure it is stopped
|
||||||
|
# always stop local VM - no interrupts possible
|
||||||
|
eval { PVE::QemuServer::vm_stop($session->{vmid}, 1); };
|
||||||
|
if ($@) {
|
||||||
|
logmsg('err', "stopping vm failed - $@");
|
||||||
|
$errors = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ($err) {
|
||||||
|
$errors = 1;
|
||||||
|
logmsg('err', "online migrate failure - $err");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
# finalize -- clear migrate lock
|
||||||
|
eval_int(sub {
|
||||||
|
my $cmd = [ @{$session->{rem_ssh}}, $qm_cmd, 'unlock', $session->{vmid} ];
|
||||||
|
run_command($cmd);
|
||||||
|
});
|
||||||
|
if ($@) {
|
||||||
|
logmsg('err', "failed to clear migrate lock - $@");
|
||||||
|
$errors = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
# destroy local copies
|
||||||
|
foreach my $volid (@$volids) {
|
||||||
|
eval_int(sub { PVE::Storage::vdisk_free($session->{storecfg}, $volid); });
|
||||||
|
my $err = $@;
|
||||||
|
|
||||||
|
if ($err) {
|
||||||
|
logmsg('err', "removing local copy of '$volid' failed - $err");
|
||||||
|
$errors = 1;
|
||||||
|
|
||||||
|
last if $err =~ /^interrupted by signal$/;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
})};
|
||||||
|
|
||||||
|
my $err = $@;
|
||||||
|
|
||||||
|
my $delay = time() - $starttime;
|
||||||
|
my $mins = int($delay/60);
|
||||||
|
my $secs = $delay - $mins*60;
|
||||||
|
my $hours = int($mins/60);
|
||||||
|
$mins = $mins - $hours*60;
|
||||||
|
|
||||||
|
my $duration = sprintf "%02d:%02d:%02d", $hours, $mins, $secs;
|
||||||
|
|
||||||
|
if ($err) {
|
||||||
|
my $msg = "migration aborted (duration $duration): $err\n";
|
||||||
|
logmsg('err', $msg);
|
||||||
|
die $msg;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ($errors) {
|
||||||
|
my $msg = "migration finished with problems (duration $duration)\n";
|
||||||
|
logmsg('err', $msg);
|
||||||
|
die $msg;
|
||||||
|
}
|
||||||
|
|
||||||
|
logmsg('info', "migration finished successfuly (duration $duration)");
|
||||||
|
}
|
||||||
|
|
||||||
|
sub prepare {
|
||||||
|
my ($session) = @_;
|
||||||
|
|
||||||
|
my $conffile = PVE::QemuServer::config_file($session->{vmid});
|
||||||
|
die "VM $session->{vmid} does not exist on this node\n" if ! -f $conffile;
|
||||||
|
|
||||||
|
# test ssh connection
|
||||||
|
my $cmd = [ @{$session->{rem_ssh}}, '/bin/true' ];
|
||||||
|
eval { run_command($cmd); };
|
||||||
|
die "Can't connect to destination address using public key\n" if $@;
|
||||||
|
}
|
||||||
|
|
||||||
|
sub sync_disks {
|
||||||
|
my ($session, $conf, $rhash, $running) = @_;
|
||||||
|
|
||||||
|
logmsg('info', "copying disk images");
|
||||||
|
|
||||||
|
my $res = [];
|
||||||
|
|
||||||
|
eval {
|
||||||
|
|
||||||
|
my $volhash = {};
|
||||||
|
my $cdromhash = {};
|
||||||
|
|
||||||
|
# get list from PVE::Storage (for unused volumes)
|
||||||
|
my $dl = PVE::Storage::vdisk_list($session->{storecfg}, undef, $session->{vmid});
|
||||||
|
PVE::Storage::foreach_volid($dl, sub {
|
||||||
|
my ($volid, $sid, $volname) = @_;
|
||||||
|
|
||||||
|
my $scfg = PVE::Storage::storage_config($session->{storecfg}, $sid);
|
||||||
|
|
||||||
|
return if $scfg->{shared};
|
||||||
|
|
||||||
|
$volhash->{$volid} = 1;
|
||||||
|
});
|
||||||
|
|
||||||
|
# and add used,owned/non-shared disks (just to be sure we have all)
|
||||||
|
|
||||||
|
my $sharedvm = 1;
|
||||||
|
PVE::QemuServer::foreach_drive($conf, sub {
|
||||||
|
my ($ds, $drive) = @_;
|
||||||
|
|
||||||
|
my $volid = $drive->{file};
|
||||||
|
return if !$volid;
|
||||||
|
|
||||||
|
die "cant migrate local file/device '$volid'\n" if $volid =~ m|^/|;
|
||||||
|
|
||||||
|
if (PVE::QemuServer::drive_is_cdrom($drive)) {
|
||||||
|
die "cant migrate local cdrom drive\n" if $volid eq 'cdrom';
|
||||||
|
return if $volid eq 'none';
|
||||||
|
$cdromhash->{$volid} = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
|
||||||
|
|
||||||
|
my $scfg = PVE::Storage::storage_config($session->{storecfg}, $sid);
|
||||||
|
|
||||||
|
return if $scfg->{shared};
|
||||||
|
|
||||||
|
die "can't migrate local cdrom '$volid'\n" if $cdromhash->{$volid};
|
||||||
|
|
||||||
|
$sharedvm = 0;
|
||||||
|
|
||||||
|
my ($path, $owner) = PVE::Storage::path($session->{storecfg}, $volid);
|
||||||
|
|
||||||
|
die "can't migrate volume '$volid' - owned by other VM (owner = VM $owner)\n"
|
||||||
|
if !$owner || ($owner != $session->{vmid});
|
||||||
|
|
||||||
|
$volhash->{$volid} = 1;
|
||||||
|
});
|
||||||
|
|
||||||
|
if ($running && !$sharedvm) {
|
||||||
|
die "can't do online migration - VM uses local disks\n";
|
||||||
|
}
|
||||||
|
|
||||||
|
# do some checks first
|
||||||
|
foreach my $volid (keys %$volhash) {
|
||||||
|
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
|
||||||
|
my $scfg = PVE::Storage::storage_config($session->{storecfg}, $sid);
|
||||||
|
|
||||||
|
die "can't migrate '$volid' - storagy type '$scfg->{type}' not supported\n"
|
||||||
|
if $scfg->{type} ne 'dir';
|
||||||
|
}
|
||||||
|
|
||||||
|
foreach my $volid (keys %$volhash) {
|
||||||
|
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
|
||||||
|
push @{$rhash->{volumes}}, $volid;
|
||||||
|
PVE::Storage::storage_migrate($session->{storecfg}, $volid, $session->{nodeip}, $sid);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
die "Failed to sync data - $@" if $@;
|
||||||
|
}
|
||||||
|
|
||||||
|
sub phase1 {
|
||||||
|
my ($session, $conf, $rhash, $running) = @_;
|
||||||
|
|
||||||
|
logmsg('info', "starting migration of VM $session->{vmid} to node '$session->{node}' ($session->{nodeip})");
|
||||||
|
|
||||||
if (my $loc_res = PVE::QemuServer::check_local_resources($conf, 1)) {
|
if (my $loc_res = PVE::QemuServer::check_local_resources($conf, 1)) {
|
||||||
if ($running || !$force) {
|
if ($running || !$session->{force}) {
|
||||||
die "can't migrate VM which uses local devices\n";
|
die "can't migrate VM which uses local devices\n";
|
||||||
} else {
|
} else {
|
||||||
logmsg('info', "migrating VM which uses local devices");
|
logmsg('info', "migrating VM which uses local devices");
|
||||||
@ -496,28 +433,28 @@ sub phase1 {
|
|||||||
# set migrate lock in config file
|
# set migrate lock in config file
|
||||||
$rhash->{clearlock} = 1;
|
$rhash->{clearlock} = 1;
|
||||||
|
|
||||||
my $settings = { lock => 'migrate' };
|
PVE::QemuServer::change_config_nolock($session->{vmid}, { lock => 'migrate' }, {}, 1);
|
||||||
PVE::QemuServer::change_config_nolock($vmid, $settings, {}, 1);
|
|
||||||
|
|
||||||
sync_disks($conf, $rhash, $running);
|
sync_disks($session, $conf, $rhash, $running);
|
||||||
|
|
||||||
# move config to remote node
|
# move config to remote node
|
||||||
my $conffile = PVE::QemuServer::config_file($vmid, $localnode);
|
my $conffile = PVE::QemuServer::config_file($session->{vmid});
|
||||||
my $newconffile = PVE::QemuServer::config_file($vmid, $node);
|
my $newconffile = PVE::QemuServer::config_file($session->{vmid}, $session->{node});
|
||||||
|
|
||||||
die "Failed to move config to node '$node' - rename failed: $!\n"
|
die "Failed to move config to node '$session->{node}' - rename failed: $!\n"
|
||||||
if !rename($conffile, $newconffile);
|
if !rename($conffile, $newconffile);
|
||||||
};
|
};
|
||||||
|
|
||||||
sub phase2 {
|
sub phase2 {
|
||||||
my ($conf, $rhash) = shift;
|
my ($session, $conf, $rhash) = shift;
|
||||||
|
|
||||||
logmsg('info', "starting VM on remote node '$node'");
|
logmsg('info', "starting VM on remote node '$session->{node}'");
|
||||||
|
|
||||||
my $rport;
|
my $rport;
|
||||||
|
|
||||||
## start on remote node
|
## start on remote node
|
||||||
my $cmd = [@rem_ssh, $qm_cmd, '--skiplock', 'start', $vmid, '--incoming', 'tcp'];
|
my $cmd = [@{$session->{rem_ssh}}, $qm_cmd, 'start',
|
||||||
|
$session->{vmid}, '--stateuri', 'tcp', '--skiplock'];
|
||||||
|
|
||||||
run_command($cmd, outfunc => sub {
|
run_command($cmd, outfunc => sub {
|
||||||
my $line = shift;
|
my $line = shift;
|
||||||
@ -533,19 +470,19 @@ sub phase2 {
|
|||||||
|
|
||||||
## create tunnel to remote port
|
## create tunnel to remote port
|
||||||
my $lport = PVE::QemuServer::next_migrate_port();
|
my $lport = PVE::QemuServer::next_migrate_port();
|
||||||
$rhash->{tunnel} = fork_tunnel($lport, $rport);
|
$rhash->{tunnel} = fork_tunnel($session->{nodeip}, $lport, $rport);
|
||||||
|
|
||||||
logmsg('info', "starting online/live migration");
|
logmsg('info', "starting online/live migration");
|
||||||
# start migration
|
# start migration
|
||||||
|
|
||||||
my $start = time();
|
my $start = time();
|
||||||
|
|
||||||
PVE::QemuServer::vm_monitor_command($vmid, "migrate -d \"tcp:localhost:$lport\"");
|
PVE::QemuServer::vm_monitor_command($session->{vmid}, "migrate -d \"tcp:localhost:$lport\"");
|
||||||
|
|
||||||
my $lstat = '';
|
my $lstat = '';
|
||||||
while (1) {
|
while (1) {
|
||||||
sleep (2);
|
sleep (2);
|
||||||
my $stat = PVE::QemuServer::vm_monitor_command($vmid, "info migrate", 1);
|
my $stat = PVE::QemuServer::vm_monitor_command($session->{vmid}, "info migrate", 1);
|
||||||
if ($stat =~ m/^Migration status: (active|completed|failed|cancelled)$/im) {
|
if ($stat =~ m/^Migration status: (active|completed|failed|cancelled)$/im) {
|
||||||
my $ms = $1;
|
my $ms = $1;
|
||||||
|
|
||||||
@ -582,25 +519,3 @@ sub phase2 {
|
|||||||
$lstat = $stat;
|
$lstat = $stat;
|
||||||
};
|
};
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
exit(0);
|
|
||||||
|
|
||||||
__END__
|
|
||||||
|
|
||||||
=head1 NAME
|
|
||||||
|
|
||||||
qmigrate - utility for VM migration between cluster nodes (kvm/qemu)
|
|
||||||
|
|
||||||
=head1 SYNOPSIS
|
|
||||||
|
|
||||||
qmigrate help
|
|
||||||
|
|
||||||
qmigrate [--online] target_node VMID
|
|
||||||
|
|
||||||
=head1 DESCRIPTION
|
|
||||||
|
|
||||||
Migrate VMs to other cluster nodes.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -37,6 +37,19 @@ my $cpuinfo = PVE::ProcFSTools::read_cpuinfo();
|
|||||||
|
|
||||||
cfs_register_file('/qemu-server/', \&parse_vm_config);
|
cfs_register_file('/qemu-server/', \&parse_vm_config);
|
||||||
|
|
||||||
|
PVE::JSONSchema::register_standard_option('skiplock', {
|
||||||
|
description => "Ignore locks - only root is allowed to use this option.",
|
||||||
|
type => 'boolean',
|
||||||
|
optional => 1,
|
||||||
|
});
|
||||||
|
|
||||||
|
PVE::JSONSchema::register_standard_option('pve-qm-stateuri', {
|
||||||
|
description => "Some command save/restore state from this location.",
|
||||||
|
type => 'string',
|
||||||
|
maxLength => 128,
|
||||||
|
optional => 1,
|
||||||
|
});
|
||||||
|
|
||||||
#no warnings 'redefine';
|
#no warnings 'redefine';
|
||||||
|
|
||||||
unless(defined(&_VZSYSCALLS_H_)) {
|
unless(defined(&_VZSYSCALLS_H_)) {
|
||||||
|
14
qm
14
qm
@ -37,12 +37,6 @@ $rpcenv->set_user('root@pam');
|
|||||||
|
|
||||||
my $nodename = PVE::INotify::nodename();
|
my $nodename = PVE::INotify::nodename();
|
||||||
|
|
||||||
PVE::JSONSchema::register_standard_option('skiplock', {
|
|
||||||
description => "Ignore locks - only root is allowed to use this option.",
|
|
||||||
type => 'boolean',
|
|
||||||
optional => 1,
|
|
||||||
});
|
|
||||||
|
|
||||||
sub run_vnc_proxy {
|
sub run_vnc_proxy {
|
||||||
my ($vmid) = @_;
|
my ($vmid) = @_;
|
||||||
|
|
||||||
@ -393,6 +387,13 @@ my $cmddef = {
|
|||||||
|
|
||||||
destroy => [ "PVE::API2::Qemu", 'destroy_vm', ['vmid'], { node => $nodename } ],
|
destroy => [ "PVE::API2::Qemu", 'destroy_vm', ['vmid'], { node => $nodename } ],
|
||||||
|
|
||||||
|
migrate => [ "PVE::API2::Qemu", 'migrate_vm', ['target', 'vmid'], { node => $nodename },
|
||||||
|
sub {
|
||||||
|
my $upid = shift;
|
||||||
|
my $status = PVE::Tools::upid_read_status($upid);
|
||||||
|
exit($status eq 'OK' ? 0 : -1);
|
||||||
|
}],
|
||||||
|
|
||||||
set => [ "PVE::API2::Qemu", 'update_vm', ['vmid'], { node => $nodename } ],
|
set => [ "PVE::API2::Qemu", 'update_vm', ['vmid'], { node => $nodename } ],
|
||||||
|
|
||||||
unlink => [ "PVE::API2::Qemu", 'unlink', ['vmid', 'idlist'], { node => $nodename } ],
|
unlink => [ "PVE::API2::Qemu", 'unlink', ['vmid', 'idlist'], { node => $nodename } ],
|
||||||
@ -443,6 +444,7 @@ sub register_vm_command {
|
|||||||
properties => {
|
properties => {
|
||||||
vmid => get_standard_option('pve-vmid'),
|
vmid => get_standard_option('pve-vmid'),
|
||||||
skiplock => get_standard_option('skiplock'),
|
skiplock => get_standard_option('skiplock'),
|
||||||
|
stateuri => get_standard_option('pve-qm-stateuri'),
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
returns => { type => 'null'},
|
returns => { type => 'null'},
|
||||||
|
Loading…
Reference in New Issue
Block a user