On 12/19/2011 11:11 AM, Amos Kong wrote:
> Sometime, we need to test with guest(s) which have static ip
> address(es).
> eg. No real/emulated DHCP server in test environment.
> eg. Test with old image we don't want to change the net config.
> eg. Test when DHCP exists problem.
Ok Amos, looks reasonable. Would you please send a v2 with ip_nic
commented out and a companion wiki documentation? It'd be the start of a
KVM autotest networking documentation. In case you are not aware, the
autotest wiki is now a git repo, you can clone it, edit the pages on
your editor, commit and push the changes.
If you have any problems, please contact me.
Cheers,
Lucas
> This is an example of using static ip address:
> 1. edit ifcfg-eth0 of guest to assign static IP
> (192.168.100.110). You can also do this by install
> post-script/serial.
> 2. add and setup bridge in host
> # brctl addbr vbr
> # ifconfig vbr 192.168.100.1
> 3. add script for setup tap device
> /etc/qemu-ifup-vbr
> | #!/bin/sh
> | switch=vbr
> | /sbin/ifconfig $1 0.0.0.0 up
> | /usr/sbin/brctl addif ${switch} $1
> | /usr/sbin/brctl setfd ${switch} 0
> | /usr/sbin/brctl stp ${switch} off
> 4. assign parameters in config file and execute test as usual
> test.cfg:
> | ip_nic1 = 192.168.100.110
> | mac_nic1 = 11:22:33:44:55:67
> | bridge = vbr
>
> Signed-off-by: Amos Kong<[email protected]>
> ---
> client/tests/kvm/base.cfg.sample | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/client/tests/kvm/base.cfg.sample
> b/client/tests/kvm/base.cfg.sample
> index 411decf..c86ec1f 100644
> --- a/client/tests/kvm/base.cfg.sample
> +++ b/client/tests/kvm/base.cfg.sample
> @@ -17,6 +17,9 @@ nics = nic1
> # Connect NIC devices to host bridge device
> bridge = virbr0
>
> +# Tell framework of nic1's static ip address
> +ip_nic1 = 192.168.100.110
> +
> # List of block device object names (whitespace seperated)
> images = image1
> # List of optical device object names
> diff --git a/client/virt/kvm_vm.py b/client/virt/kvm_vm.py
> index fa258c3..1fb177f 100644
> --- a/client/virt/kvm_vm.py
> +++ b/client/virt/kvm_vm.py
> @@ -821,7 +821,12 @@ class VM(virt_vm.BaseVM):
> if mac:
> virt_utils.set_mac_address(self.instance, vlan, mac)
> else:
> - virt_utils.generate_mac_address(self.instance, vlan)
> + mac = virt_utils.generate_mac_address(self.instance,
> vlan)
> +
> + if nic_params.get("ip"):
> + self.address_cache[mac] = nic_params.get("ip")
> + logging.debug("(address cache) Adding static cache
> entry: "
> + "%s ---> %s" % (mac,
> nic_params.get("ip")))
>
> # Assign a PCI assignable device
> self.pci_assignable = None
>
> --
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