* CLOUDSTACK-10160: Fix typo in Libvirt XML definition for Virtio-SCSI
The attribute for the XML element 'controller' should be 'model' and
not 'mode'.
Source: https://libvirt.org/formatdomain.html#elementsControllers
A scsi controller has an optional attribute model, which is one of
'auto', 'buslogic', 'ibmvscsi', 'lsilogic', 'lsisas1068', 'lsisas1078',
'virtio-scsi' or 'vmpvscsi'.
In the current state a regular SCSI device is attached and not a Virtio-SCSI
device.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
* CLOUDSTACK-10160: Add UnitTest for LibvirtVMDef.SCSIDef
To make sure the XML output string is correct
Signed-off-by: Wido den Hollander <wido@widodh.nl>
This commit adds support for passing IPv6 Addresses and/or Subnets as
Secondary IPs.
This is groundwork for CLOUDSTACK-9853 where IPv6 Subnets have to be
allowed in the Security Groups of Instances to we can add DHCPv6
Prefix Delegation.
Use ; instead of : for separating addresses, otherwise it would cause
problems with IPv6 Addresses.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
* CLOUDSTACK-9972: Enhance listVolume API to include physical size and utilization.
Also fixed pool, cluster and pod info
* CLOUDSTACK-9972: Fix volume_view and duplicate API constant
* CLOUDSTACK-9972: Backport Do not allow vms to be deployed on hosts that are in disabled pod
* CLOUDSTACK-9972: Fix localization missing keys
* CLOUDSTACK-9972: Fix sql path
Commit enables a new feature for KVM hypervisor which purpose is to increase virtually amount of RAM available beyond the actual limit.
There is a new parameter in agent.properties: host.overcommit.mem.mb which enables adding specified amount of RAM to actually available. It is necessary to utilize KSM and ZSwap features which extend RAM with deduplication and compression.
The watchdog timer adds functionality where the Hypervisor can detect if an
instance has crashed or stopped functioning.
The watchdog timer adds functionality where the Hypervisor can detect if an
instance has crashed or stopped functioning.
When the Instance has the 'watchdog' daemon running it will send heartbeats
to the /dev/watchdog device.
If these heartbeats are no longer received by the HV it will reset the Instance.
If the Instance never sends the heartbeats the HV does not take action. It only
takes action if it stops sending heartbeats.
This is supported since Libvirt 0.7.3 and can be defined in the XML format as
described in the docs: https://libvirt.org/formatdomain.html#elementsWatchdog
To the 'devices' section this will be added:
In the agent.properties the action to be taken can be defined:
vm.watchdog.action=reset
The same goes for the model. The Intel i6300esb is however the most commonly used.
vm.watchdog.model=i6300esb
When the Instance has the 'watchdog' daemon running it will send heartbeats
to the /dev/watchdog device.
If these heartbeats are no longer received by the HV it will reset the Instance.
If the Instance never sends the heartbeats the HV does not take action. It only
takes action if it stops sending heartbeats.
This is supported since Libvirt 0.7.3 and can be defined in the XML format as
described in the docs: https://libvirt.org/formatdomain.html#elementsWatchdog
To the 'devices' section this will be added:
<watchdog model='i6300esb' action='reset'/>
In the agent.properties the action to be taken can be defined:
vm.watchdog.action=reset
The same goes for the model. The Intel i6300esb is however the most commonly used.
vm.watchdog.model=i6300esb
Signed-off-by: Wido den Hollander <wido@widodh.nl>
- Removed three bg thread tasks, uses FSM event-trigger based scheduling
- On successful recovery, kicks VM HA
- Improves overall HA scheduling and task submission, lower DB access
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Host-HA offers investigation, fencing and recovery mechanisms for host that for
any reason are malfunctioning. It uses Activity and Health checks to determine
current host state based on which it may degrade a host or try to recover it. On
failing to recover it, it may try to fence the host.
The core feature is implemented in a hypervisor agnostic way, with two separate
implementations of the driver/provider for Simulator and KVM hypervisors. The
framework also allows for implementation of other hypervisor specific provider
implementation in future.
The Host-HA provider implementation for KVM hypervisor uses the out-of-band
management sub-system to issue IPMI calls to reset (recover) or poweroff (fence)
a host.
The Host-HA provider implementation for Simulator provides a means of testing
and validating the core framework implementation.
Signed-off-by: Abhinandan Prateek <abhinandan.prateek@shapeblue.com>
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Since libvirt 1.2.2 libvirt will properly create volumes
using RBD format 2.
We can use libvirt to creates the volumes which strips a bit of
code from the CloudStack Agent's responsbility.
RBD format 2 is already used by all volumes created by CloudStack.
This format is the most recent format of RBD and is still actively
being developed.
This removes the support for Ubuntu 12.04 as that does not have the
proper libvirt version available.
Signed-off-by: Wido den Hollander wido@widodh.nl
We can use libvirt to creates the volumes which strips a bit of
code from the CloudStack Agent's responsbility.
RBD format 2 is already used by all volumes created by CloudStack.
This format is the most recent format of RBD and is still actively
being developed.
This removes the support for Ubuntu 12.04 as that does not have the
proper libvirt version available.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
Libvirt / Qemu (KVM) does not collect statistics about these either.
On some systems it might even yield a 'internal error' from libvirt
when attempting to gather block statistics from such devices.
For example Ubuntu 16.04 (Xenial) has a issue with this.
Skip them when looping through all devices.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
The 'force' option provided with the stopVirtualMachine API command is
often assumed to be a hard shutdown sent to the hypervisor, when in fact
it is for CloudStacks' internal use. CloudStack should be able to send
the 'hard' power-off request to the hosts.
When forced parameter on the stopVM API is true, power off (hard shutdown)
a VM. This uses initial changes from #1635 to pass the forced parameter
to hypervisor plugin via the StopCommand, and fixes force stop (poweroff)
handling for KVM, VMware and XenServer.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Bug-ID: CLOUDSTACK-8880: calculate free memory on host before deploying Vm. free memory = total memory - (all vm memory)With memory over-provisioning set to 1, when mgmt server starts VMs in parallel on one host, then the memory allocated on that kvm can be larger than the actual physcial memory of the kvm host.
Fixed by checking free memory on host before starting Vm.
Added test case to check memory usage on Host.
Verified Vm deploy on Host with enough capacity and also without capacity
* pr/847:
Bug-ID: CLOUDSTACK-8880: calculate free memory on host before deploying Vm. free memory = total memory - (all vm memory)
Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
CLOUDSTACK-9794: Unable to attach more than 14 devices to a VMUpdated hardcoded value with max data volumes limit from hypervisor capabilities.
* pr/1953:
CLOUDSTACK-9794: Unable to attach more than 14 devices to a VM
Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
* 4.9:
moved logrotate from cron.daily to cron.hourly for vpcrouter in cloud-early-config
CLOUDSTACK-9569: propagate global configuration router.aggregation.command.each.timeout to KVM agent
This adds support for virtio-scsi on KVM hosts, either
for guests that are associated with a new os_type of 'Other PV Virtio-SCSI (64-bit)',
or when a VM or template is regstered with a detail parameter rootDiskController=scsi.
Update cloudstack add template dialog to allow for selecting rootDiskController with KVM
Update cloudstack kvm virtio-scsi to enable discard=unmap
[4.10] CLOUDSTACK-8746: VM Snapshotting implementation for KVM
* pr/977:
Fixes for testing VM Snapshots on KVM. Related to PR 977
CLOUDSTACK-8746: vm snapshot implementation for KVM
Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
This commit implements basic Security Grouping for KVM in
Basic Networking.
It does not implement full Security Grouping yet, but it does:
- Prevent IP-Address source spoofing
- Allow DHCPv6 clients, but disallow DHCPv6 servers
- Disallow Instances to send out Router Advertisements
The Security Grouping allows ICMPv6 packets as described by RFC4890
as they are essential for IPv6 connectivity.
Following RFC4890 it allows:
- Router Solicitations
- Router Advertisements (incoming only)
- Neighbor Advertisements
- Neighbor Solicitations
- Packet Too Big
- Time Exceeded
- Destination Unreachable
- Parameter Problem
- Echo Request
ICMPv6 is a essential part of IPv6, without it connectivity will break or be very
unreliable.
For now it allows any UDP and TCP packet to be send in to the Instance which
effectively opens up the firewall completely.
Future commits will implement Security Grouping further which allows controlling UDP and TCP
ports for IPv6 like can be done with IPv4.
Regardless of the egress filtering (which can't be done yet) it will always allow outbound DNS
to port 53 over UDP or TCP.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
(1) add support to create/delete/revert vm snapshots on running vms with QCOW2 format
(2) add new API to create volume snapshot from vm snapshot
(3) delete metadata of vm snapshots before stopping/migrating and recover vm snapshots after starting/migrating
(4) enable deleting of VM snapshot on stopped vm or vm snapshot is not listed in qcow2 image.
(5) enable smoke tests for vmsnaphsots on KVM
This commit adds a additional VirtIO channel with the name
'org.qemu.guest_agent.0' to all Instances.
With the Qemu Guest Agent the Hypervisor gains more control over the Instance if
these tools are present inside the Instance, for example:
* Power control
* Flushing filesystems
* Fetching Network information
In the future this should allow safer snapshots on KVM since we can instruct the
Instance to flush the filesystems prior to snapshotting the disk.
More information: http://wiki.qemu.org/Features/QAPI/GuestAgent
Keep in mind that on Ubuntu AppArmor still needs to be disabled since the default
AppArmor profile doesn't allow libvirt to write into /var/lib/libvirt/qemu
This commit does not add any communication methods through API-calls, it merely
adds the channel to the Instances and installs the Guest Agent in the SSVMs.
With the addition of the Qemu Guest Agent channel a second channel appears in /dev
on a SSVM as a VirtIO port.
The order in which the ports are defined in the XML matters for the naming inside
the SSVM VM and by not relying on /dev/vportXX but looking for a static name the
SSVM still boots properly if the order in the XML definition is changed.
A SSVM with both ports attached will have something like this:
root@v-215-VM:~# ls -l /dev/virtio-ports
total 0
lrwxrwxrwx 1 root root 11 May 13 21:41 org.qemu.guest_agent.0 -> ../vport0p2
lrwxrwxrwx 1 root root 11 May 13 21:41 v-215-VM.vport -> ../vport0p1
root@v-215-VM:~# ls -l /dev/vport*
crw------- 1 root root 251, 1 May 13 21:41 /dev/vport0p1
crw------- 1 root root 251, 2 May 13 21:41 /dev/vport0p2
root@v-215-VM:~#
In this case the SSVM port points to /dev/vport0p1, but if the order in the XML
is different it might point to /dev/vport0p2
By looking for a portname with a pre-defined pattern in /dev/virtio-ports we
do not rely on the order in the XML definition.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
CLOUDSTACK-9503: Increased the VR script timeout. Most of the changes are about converting int/long time values to joda Duration.
* pr/1745:
CLOUDSTACK-9503: Increased the VR script timeout. Most of the changes are about converting int/long time values to joda Duration.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Made the changes to improve logging.CLOUSTACK-9465 Several log refactoring/improvement suggestions.
There are two scenarios of logging which needs refactoring/improvement:
Method invocation replaced by variable
This means that in the logging code, the method invocation is pre-defined as a variable. for simplicity, the method invocation should be replaced by the variable.
Delete variable which must be null
The variable in the logging code is null, there is no need to put the variable there.
* pr/1705:
Made the changes to improve logging.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
By adding a Random Number Generator device to Instances we can prevent
entropy starvation inside guest.
The default source is /dev/random on the host, but this can be configured
to another source when present, for example a hardware RNG.
When enabled it will add the following to the Instance's XML definition:
<rng model='virtio'>
<rate period='1000' bytes='2048' />
<backend model='random'>/dev/random</backend>
</rng>
If the Instance has the proper support, which most modern distributions have,
it will have a /dev/hwrng device which it can use for gathering entropy.
More information: https://libvirt.org/formatdomain.html#elementsRng
The patchviasocket script was rewritten in Python from PR #1533 and made
assumptions that Python 2.7 would be available. In case of CentOS, python 2.7
may not be available or installed. This change ensures that python-argparse
is installed which is used by this script.
Expose cmd error in the logs when patch command fails.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
We noticed that when an exception occurs within the cleanup loop inside
the deletePhysicalDisk routine that the previously allocated contexts
are not cleaned up. This seemed to cause an eventual crash of the host
agent after multiple exceptions within the loop.
In addition to ensuring the contexts are always freed we also improved
the logging when exceptions do occur to include the actual return code
from the underlying library in deletePhysicalDisk and deleteSnapshot.
Convert patchviasocket to python (removes perl dependency for KVM agent)As requested here: https://github.com/apache/cloudstack/pull/1495
No scripts are using perl so that install requirement can be removed.
The new scripts are using standard python packages only.
Includes extensive unit test.
Note: perl-modules requirement is missing (fixed in mentioned PR) so do not merge that onto master.
* pr/1533:
Revert "Add perl-modules as install dependency for cloudstack-agent"
patchviasocket improve error handling
Convert patchviasocket to python (removes perl dependency for KVM agent)
Signed-off-by: Will Stevens <williamstevens@gmail.com>
As requested here: https://github.com/apache/cloudstack/pull/1495
No scripts are using perl so that install requirement can be removed.
The new scripts are using standard python packages only.
Includes extensive unit test.
Taking fast and efficient volume snapshots with XenServer (and your storage provider)A XenServer storage repository (SR) and virtual disk image (VDI) each have UUIDs that are immutable.
This poses a problem for SAN snapshots, if you intend on mounting the underlying snapshot SR alongside the source SR (duplicate UUIDs).
VMware has a solution for this called re-signaturing (so, in other words, the snapshot UUIDs can be changed).
This PR only deals with the CloudStack side of things, but it works in concert with a new XenServer storage manager created by CloudOps (this storage manager enables re-signaturing of XenServer SR and VDI UUIDs).
I have written Marvin integration tests to go along with this, but cannot yet check those into the CloudStack repo as they rely on SolidFire hardware.
If anyone would like to see these integration tests, please let me know.
JIRA ticket: https://issues.apache.org/jira/browse/CLOUDSTACK-9281
Here's a video I made that shows this feature in action:
https://www.youtube.com/watch?v=YQ3pBeL-WaA&list=PLqOXKM0Bt13DFnQnwUx8ZtJzoyDV0Uuye&index=13
* pr/1403:
Faster logic to see if a cluster supports resigning
Support for backend snapshots with XenServer
Signed-off-by: Will Stevens <williamstevens@gmail.com>
Wido den Hollander
Abhinandan Prateek
Bitworks Software, Ltd
Rohit Yadav
Wei Zhou
Rajani Karuturi
Bharat Kumar
Jayapal
Rajani Karuturi
Suresh Kumar Anaparti
Nathan Johnson
Kishan Kavala
Abhinandan Prateek
Nemo
Aaron Hurt
Aaron Hurt
Will Stevens
Sverrir A. Berg