Reads from Hyper-V KV on a Linux guest
Project description
hyperkv
Get Hyper-V Key Value Pairs on Linux Guest
Simple parser of the files made by hv_kvp_daemon
on a Linux guest. This allows a guest to determine its name, the host's name, etc. Learn more about Hyper-V Data Exchange here.
Install
pip install hyperkv
Usage
hyperkv
will write the contents as a JSON to standard out like this:
{
"HostName": "thehost.example.com",
"HostingSystemEditionId": "8",
"HostingSystemNestedLevel": "0",
"HostingSystemOsMajor": "10",
"HostingSystemOsMinor": "0",
"HostingSystemProcessorArchitecture": "9",
"HostingSystemProcessorIdleStateMax": "0",
"HostingSystemProcessorThrottleMax": "100",
"HostingSystemProcessorThrottleMin": "5",
"HostingSystemSpMajor": "0",
"HostingSystemSpMinor": "0",
"PhysicalHostName": "THEHOST",
"PhysicalHostNameFullyQualified": "thehost.example.com",
"VirtualMachineDynamicMemoryBalancingEnabled": "0",
"VirtualMachineId": "461B2364-3901-4349-B3C2-FA4821CBEEFE",
"VirtualMachineName": "my-guest-vm"
}
By default, this script reads from /var/lib/hyperv/.kvp_pool_3
, but you can specify a different path with -f
hyperkv -f /var/lib/hyperv/.kvp_pool_2
Requirements
hv_kvp_daemon
must be installed and working. If it is working, you will find files in /var/lib/hyperv
.
Ubuntu
apt-get install linux-azure linux-azure-tools
grub-update
At boot time, you need to pick advanced startup and make sure it boots with the newly installed Azure kernel. To make that more permanent, you can open /etc/default/grub
, add the line GRUB_SAVEDEFAULT=true
, and change GRUB_DEFAULT=0
to GRUB_DEFAULT=saved
. The next time you boot, choose the Azure kernel and that will become the default until you pick a different one at the GRUB menu.
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