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Libvirt wrapper to spawn VMs using cloud images
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kayrus/deploy-vm
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sudo apt-get install -y libvirt-bin virtinst qemu-kvm virt-manager git wget genisoimagesudo service libvirt-bin start
For the Windows VM support installbsdtar (this tool allows to extract zip archive from stdin):
sudo apt-get install bsdtar
sudo yum install -y libvirt virt-install qemu-kvm virt-manager git wget genisoimage NetworkManagersudo service libvirtd start
For the Windows VM support installbsdtar (this tool allows to extract zip archive from stdin):
sudo yum install bsdtar
This string inside your~/.profile will allow you to usevirsh:
export LIBVIRT_DEFAULT_URI=qemu:///system- Ubuntu 18.04 (
systemd-resolved(c))
The setting below is not preserved on reboot:
systemd-resolve --set-dns=192.168.122.1 --set-domain=vm --interface=virbr0
Verify:
systemd-resolve --status virbr0
Add the following section into libvirt default network (sudo virsh net-edit default):
<domainname='vm'localOnly='yes'/>
And restart the network:
sudo virsh net-destroy defaultsudo virsh net-start default
- Ubuntu/Debian
virsh net-dumpxml default| sed -r":a;N;\$!ba;s#.*address='([0-9.]+)'.*#nameserver \1#"| sudo tee -a /etc/resolvconf/resolv.conf.d/head&& sudo resolvconf -u
- Fedora/CentOS
sudo systemctlenable NetworkManagerecho -e"[main]\ndns=dnsmasq"| sudo tee -a /etc/NetworkManager/NetworkManager.confvirsh net-dumpxml default| sed -r":a;N;\$!ba;s#.*address='([0-9.]+)'.*#server=\1\nall-servers#"| sudo tee /etc/NetworkManager/dnsmasq.d/libvirt_dnsmasq.confsudo systemctl restart NetworkManager
sudo usermod -aG libvirtd$USER# for Debian/Ubuntu14.04/Ubuntu16.04sudo usermod -aG libvirt$USER# for CentOS/Fedora/Ubuntu18.04
NOTE: You have to relogin into your UI environment to apply these changes.
setfacl -m"u:libvirt-qemu:--x"$HOME# for Debian/Ubuntusetfacl -m"u:qemu:--x"$HOME# for CentOS/Fedora
setfacl -m"u:libvirt-qemu:---"$HOME# for Debian/Ubuntusetfacl -m"u:qemu:---"$HOME# for CentOS/Fedora
setfacl -b$HOMEgetfacl$HOME
sudo usermod -aG$USER libvirt-qemu# for Debian/Ubuntusudo usermod -aG$USER qemu# for CentOS/Fedorachmod g+x$HOME
sudo usermod -G"" libvirt-qemu# for Debian/Ubuntusudo usermod -G"kvm" qemu# for CentOS/Fedorachmod g-x$HOME
echo"export LIBVIRT_DEFAULT_URI=qemu:///system">>~/.bashrc
cat dot_ssh_config>>~/.ssh/configchmod 600~/.ssh/config
./deploy_flatcar_cluster.sh -s 3
user_data file works only for Flatcar and contains a template for Flatcar configuration and it configuresetcd2 andfleet.
Create Tectonoic credentials files:
tectonic.lic# raw base64 encoded licencedocker.cfg# raw base64 encoded dockercfg
Deploy cluster:
./deploy_k8s_cluster.sh --tectonic
Enter your Kubernetes master node:
ssh core@k8s-master# [-i ~/.ssh/id_rsa]Get Tectonicadmin@example.com password:
kubectl --namespace=tectonic-system get secret tectonic-identity-admin-password -o template --template="{{.data.password}}"| base64 -d&&echo
Login Tectonic:
Username:admin@example.comPassword: see above
Run three CentOS VMs
./deploy_vms_cluster.sh -o centos -s 3
Run one Windows IE11.Win7 VM
./deploy_vms_cluster.sh -o windows -r IE11.Win7 -m 1024 -u 2
Download and run FreeBSD:
./deploy_vms_cluster.sh -o freebsd# for 10.3 RELEASE./deploy_vms_cluster.sh -o freebsd -c 11.0 -r RC1# for 11.0 RC1
FreeBSD QEMU images don't supportcloud-init, so you have to configure network and ssh manually through the console:
dhclient vtnet0echo'sshd_enable=YES'>> /etc/rc.confecho'ifconfig_DEFAULT=DHCP'>> /etc/rc.confecho'PermitRootLogin yes'>> /etc/ssh/sshd_configservice sshd startpasswd
pkg install bash wget bzip2 gnupg cdrtools libvirt qemu virt-managerkldload vmmlibvirtd -difconfig tap createifconfig bridge createifconfig bridge0 addm tap0 up
virt-install version > 1.4 should use following parameters:
--nographic \--console nmdm,source.master=/dev/nmdm0A,source.slave=/dev/nmdm0B \--network bridge=bridge0 \
and without--vnc flag. VNC flag produces following XML:
<graphicstype="vnc"port="-1"keymap="en-us"/>
which causesinternal error: cannot determine default video type error message.
./remove_cluster.sh flatcar