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Checking for the cgroup directory is a kind of time-of-check
time-of-use race condition stop-mode backups seem to
occasionally run into on some systems.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
We don't leave this up to cloud-init as we don't want
un-hashed values at all in our configs.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Leaving files in /tmp was mostly useful for debugging
purposes initially. Also /tmp is a rather insecure option
for this for a final version, so use
/run/pve/cloudinit/$vmid, and move the file writing into
commit_cloudinit_disk() which now takes a hash mapping file
paths to contents, to not duplicate the temp-file logic for
the different citypes.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
With configdrives we end up with the /etc/network/interfaces
file containing the interface names we use on the disk, ie.
eth0/eth1/..., which doesn't work on systems which do not
use this name.
With the 'nocloud' image type we can provide a
network-config in yaml which matches mac addresses. Ideally
we'd use version 2, but debian stretch ships with a too old
cloud-init for this, so for now we're writing version 1.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
move: don't error out with "you can't move a cdrom"
clone: always full-clone cloud-init images
They get completely replaced anyway at the next start, so
there's no point in keeping them.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This requires a pve-common patch since we need to not only
load the file but also url-encode it.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
*) always replace old cloudinit images
*) apply pending cloudinit changes when generating a new
image
For cloudinit we now always use vdisk_free before
vdisk_alloc in order to always replace old images, this
allows us to hotplug a new drive by setting it to
`none,media=cdrom` first (to eject the disk), then setting
it back to 'storage:cloudinit' to have a new image generated
after applying the currently pending changes.
We now have a patch on top of qemu to allow 'qemu-img dd'
to read from stdin when specifying input and output sizes,
as well as a way to tell it that the size of the source is
not known.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
qemu 2.11 need a power of 2 cache size.
"
Parameter 'xbzrle_cache_size' expects is invalid,
it should be bigger than target page size and a power of two
"
roundup to near power of 2 value
in case of e.g. a non-existant guest-agent command, it would return
{ error: {someerrorobject} }
but we did only include the 'return' property
in case we do not get any and the error property is set,
return that
i looked at all the paths were we use the QMPClient, and either
we have our own callback for the result,
or we do not rely on the result being empty upon an error, so this
should not break anything
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
between qemu 2.9 and 2.11 there were added some new commands,
the guest agent inside the vm has to support these
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
with a 'register_command' sub, which generates an api call
we call it for each command in the list, and one time for
the old general {vmid}/agent endpoint (for compatibility)
permissions/methods are the same as previously, but can
be overriden
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
socat tunnel for nbd mirror was introduce here
https://pve.proxmox.com/pipermail/pve-devel/2017-January/024777.html
to workaround when nbd client was hanging on non responding nbd server.
We have added a 30s timeout on socat tunnel, but when we migrate
multiple disks, it can break migration if for example first disk
is already finished and don't send any new datas in the tunnel.
The connect timeout bug has been fixed in qemu 2.9,
so we can remove the socat tunnel now.
With shared=1, (live) migration ignores the disk and assumes it is
present on all target nodes. This works similar to shared=1 on LXC
mountpoints.
Signed-off-by: Chris Hofstaedtler <chris.hofstaedtler@deduktiva.com>
Reviewed-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Tested-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
if the value was '0', we did not append the option to the drive,
resulting in wrong command line if the qemu default of an option is not
'0'
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Fixes problems in CLIHandler using the code pattern:
while (my $line = <>) {
...
}
For why this causes only _now_ problems lets first look how <>
behaves:
"The null filehandle <> is special: [...] Input from <> comes either
from standard input, or from each file listed on the command line.
Here's how it works: the first time <> is evaluated, the @ARGV array
is checked, and if it is empty, $ARGV[0] is set to "-" , which when
opened gives you standard input. The @ARGV array is then processed
as a list of filenames." - 'perldoc perlop'
Recent changes in the CLIHandler code changed how we modfiied @ARGV
Earlier we assumed that the first argument must be the command and
thus shifted it out of @ARGV, now we can have multiple levels of
(sub)commands. This change also changed how we handle @ARGV, we do
not unshift anything but go through the arguments until we got to
the final command and copy the rest of @ARGV as we know that this
must be the commandos arguments.
For '<>' this means that ARGV was still fully populated and perl
tried to open element as a file, which naturally failed.
Thus the change in pve-common only exposed this 'dangerous' code
pattern.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Skylake-Server is the Xeon variant of Skylake
max is "all features supported by the accelerator in the current host"
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
this have the 'spec-ctrl' flag by default to allow IBRS based Spectre
mitigation by the guest kernel.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Shows each parameter value pair in a new line with a backslash at the
end, so it's still possible to copy, paste and execute it, while
being easier to read and edit by humans. This is opt in.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Hugepages can take some time to be allocated by qemu at start (60s for 120G of 1G hugepages).
This patch increase start timeout to 5min when hugepages are enabled.
Currently this only allows specifying '+pcid' or '-pcid'
but might be extended in the future.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Fixes: 2bfbee039bbe ("include format for efidisk")
Reviewed-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Tested-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This also fixes a bug where VMs with no memory defined in the config
where reported as using 0MB instead of 512.
Signed-off-by: Emmanuel Kasper <e.kasper@proxmox.com>
There's no reason to have Ctrl+O terminate these sessions.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Reviewed-by: Dominik Csapak <d.csapak@proxmox.com>
