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# harvester
a
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r
Without DHCP you will need network data in cloud config (advanced settings) during node configuration before pool is created.
s
Any link for reference.
r
s
when I am creating network config, should I use the real interface name like i used when creating network. or which one?
w
For a practical example see https://community.suse.com/posts/how-to-manage-harvester-030-with-rancher-261-running-in-a-vm-within-harvester (ignore the out of date Harvester & Rancher versions)
s
waiting for community approval
b
@strong-orange-21773 try this invite (will be quicker) https://community.suse.com/share/TFoce0bPKNzFTb_B?utm_source=manual
🙌 1
r
Done
s
I see that it is not adding the IP from the network I have created
I added this, but still not working.
do I need delete and recreate the machine or restart with changed network config will do
r
I understand some cloud-config is only applied during first boot so it's probably necessary to recreate the VM.
It is also possible to restart the cloud-config life cycle with a CLI option like 
--clean
, if I remember correctly.
s
thanks
is it possible to have the cloud init network config of the network I created in harvester (vm networks)
Copy code
#cloud-config
network:
  version: 2
  ethernets:
    eth0:
      dhcp4: false
      addresses:
        - 10.1.0.0/16
      gateway4: 10.1.0.1
      nameservers:
        addresses:
          - 8.8.8.8
          - 8.8.4.4
  vlans:
    vlan1002:
      id: 1002
      link: eth0
do the above format is correct?
I think, it is no cloud ISO file 😞
Copy code
{"component":"virt-launcher","level":"info","msg":"Driver cache mode for /var/run/kubevirt-ephemeral-disks/cloud-init-data/default/ubuntu/noCloud.iso set to none","pos":"converter.go:447","timestamp":"2023-04-25T12:41:15.645943Z"}
{"component":"virt-launcher","level":"info","msg":"generated nocloud iso file /var/run/kubevirt-ephemeral-disks/cloud-init-data/default/ubuntu/noCloud.iso","pos":"cloud-init.go:655","timestamp":"2023-04-25T12:41:16.370144Z"}
=6,id=pci.6,bus=pcie.0,addr=0x2.0x5 \\-device pcie-root-port,port=22,chassis=7,id=pci.7,bus=pcie.0,addr=0x2.0x6 \\-device pcie-root-port,port=23,chassis=8,id=pci.8,bus=pcie.0,addr=0x2.0x7 \\-device qemu-xhci,id=usb,bus=pci.2,addr=0x0 \\-device virtio-scsi-pci-non-transitional,id=scsi0,bus=pci.3,addr=0x0 \\-device virtio-serial-pci-non-transitional,id=virtio-serial0,bus=pci.4,addr=0x0 \\-blockdev '{\"driver\":\"host_device\",\"filename\":\"/dev/disk-0\",\"aio\":\"native\",\"node-name\":\"libvirt-2-storage\",\"cache\":{\"direct\":true,\"no-flush\":false},\"auto-read-only\":true,\"discard\":\"unmap\"}' \\-blockdev '{\"node-name\":\"libvirt-2-format\",\"read-only\":false,\"discard\":\"unmap\",\"cache\":{\"direct\":true,\"no-flush\":false},\"driver\":\"raw\",\"file\":\"libvirt-2-storage\"}' \\-device virtio-blk-pci-non-transitional,bus=pci.5,addr=0x0,drive=libvirt-2-format,id=ua-disk-0,bootindex=1,write-cache=on,werror=stop,rerror=stop \\-blockdev '{\"driver\":\"file\",\"filename\":\"/var/run/kubevirt-ephemeral-disks/cloud-init-data/default/ubuntu/noCloud.iso\",\"node-name\":\"libvirt-1-storage\",\"cache\":{\"direct\":true,\"no-flush\":false},\"auto-read-only\":true,\"discard\":\"unmap\"}' \\-blockdev '{\"node-name\":\"libvirt-1-format\",\"read-only\":false,\"discard\":\"unmap\",\"cache\":{\"direct\":true,\"no-flush\":false},\"driver\":\"raw\",\"file\":\"libvirt-1-storage\"}' \\-device virtio-blk-pci-non-transitional,bus=pci.6,addr=0x0,drive=libvirt-1-format,id=ua-cloudinitdisk,write-cache=on,werror=stop,rerror=stop \\-netdev tap,fd=29,id=hostua-default,vhost=on,vhostfd=31 \\-device virtio-net-pci-non-transitional,host_mtu=1500,netdev=hostua-default,id=ua-default,mac=46:92:1c:82:7d:20,bus=pci.1,addr=0x0,romfile= \\-chardev socket,id=charserial0,fd=25,server=on,wait=off \\-device isa-serial,chardev=charserial0,id=serial0 \\-chardev socket,id=charchannel0,fd=27,server=on,wait=off \\-device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \\-device usb-tablet,id=ua-tab
r
That could explain not getting an IP for sure. I'm using openSUSE LEAP cloud image with Harvester OK. You need to specify the IP address for the host. Your network-data example currently shows 
10.1.0.0/16
which is the network address, not the host address. You need something like 
10.1.0.100/16
for 
eth0
.
s
sorry to ask too many question. In the network config, is it possible to use the VLAN info I created ?
also what is the purpose of creating VLAN and mentioning the same during VM creation if we have to mention details in cloud-init config again?
is it for mentioning the static IP. If so when I am creating a cluster do I need to mention IP address for all the nodes creating my pool?
any way we can make the VM to pick the IP from subnets on its own?
r
I don't believe it's necessary to configure VLAN in network-data because a "VM Network" in Harvester that is tagged to a VLAN will handle the VLAN tagging for all guest VMs on that network. In other words, the guest VM doesn't need to be "aware" of the VLAN for the interface that is attached to a tagged Harvester VM network.
You may enable DHCP if you provide a DHCP server on the same subnet as the Harvester VM network or you may configure a static IP with network-data interface addresses.
s
what should be the interface name?
r
The correct adapter name will depend on the OS image. It could be like 
ethN
or 
enpNsN
, or something else. Perhaps the simplest way to discover it is to log in the console and say 
ip link sh
.
s
in few OS I see my interface name as eth0 and eth1 and when creating vm network , i see my interface name as enp5s0 and enp6s0
right
so I wanted to attach 10.1.0.2
It is not adding I see net1 and eth0
it is adding the VM network which I mentioned during VM creation and which I created in VM network. but it is not adding any IP as it is not DHCP server. I am passing the IP via cloud init but it is not considering it, I am making a mistake
r
Now the 
addresses
part is missing in network-data, and the adapter name needs to be 
eth0
if that is the name used by your cloud image.
This reference is for config spec v2. I'm uncertain whether you can choose either v1 or v2, but certainly the stated version in your network-data will need to match one or the other.
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