kvm-cloud.sh

#!/bin/sh

echo "http://mirrors.edge.kernel.org/alpine/v3.19/community" >> /etc/apk/repositories
apk update

# Install Open VM Tools
apk add open-vm-tools open-vm-tools-guestinfo open-vm-tools-deploypkg
rc-update add open-vm-tools boot
rc-service open-vm-tools start

# Install Open vSwitch
apk add openvswitch
service ovs-vswitchd start
rc-update add ovs-vswitchd

# Install virtualization packages
apk add libvirt-daemon qemu-img qemu-system-x86_64 qemu-modules openrc virt-install libvirt dbus polkit
rc-update add libvirtd
rc-update add libvirt-guests
rc-update add polkit
service libvirtd start
service polkit start

# Install storage
apk add zfs zfs-lts
modprobe zfs

sysctl net.ipv4.ip_forward
ovs-vsctl add-br external-net
ip link set dev eth1 up
apk add iproute2
modprobe tun
echo tun >> /etc/modules

# DHCP Server
####
ovs-vsctl add-port external-net dhcp0 -- set Interface dhcp0 type=internal external_ids:iface-id=dhcp0,attached-mac=32:6b:ce:89:41:42
ip netns add dhcpport
ip link set dhcp0 netns dhcpport
ip netns exec dhcpport ip link set dhcp0 address 32:6b:ce:89:41:42
ip netns exec dhcpport ip addr add 169.254.169.253/0 dev dhcp0
ip netns exec dhcpport ip link set dhcp0 up
ip netns exec dhcpport ip route add default dev dhcp0

# Configure DHCP Server
ip link add v-eth1 type veth peer name v-peer1

## Add peer to dhcp
ip link set v-peer1 netns dhcpport

## Configure host virtual ethernet port
ip addr add 10.200.1.1/24 dev v-eth1
ip link set v-eth1 up

## Configure DHCP server access to KVM Cloud backend
ip netns exec dhcpport ip addr add 10.200.1.2/24 dev v-peer1
ip netns exec dhcpport ip link set v-peer1 up
ip netns exec dhcpport ip link set lo up

## Setup DHCP service
cat <<'EOF' > /etc/init.d/kcloud-dhcp
#!/sbin/openrc-run
#/etc/init.d/kcloud-dhcp

name="$SVCNAME"
command="/sbin/ip"
command_args="netns exec dhcpport /root/dhcp"
command_user="root"
pidfile="/run/$SVCNAME/$SVCNAME.pid"
command_background="yes"
EOF

mkdir /run/kcloud-dhcp
chmod +x /etc/init.d/kcloud-dhcp
service kcloud-dhcp start

# Metadata Server
ovs-vsctl add-port external-net meta0 -- set Interface meta0 type=internal external_ids:iface-id=meta0,attached-mac=32:6b:ce:89:41:43
ip netns add metaport
ip link set meta0 netns metaport
ip netns exec metaport ip link set meta0 address 32:6b:ce:89:41:43
ip netns exec metaport ip addr add 169.254.169.254/0 dev meta0
ip netns exec metaport ip link set meta0 up
ip netns exec metaport ip route add default dev meta0


## Setup Network
cat <<EOF > /root/external-network.xml
<network>
  <name>external</name>
  <uuid>f58cad29-0455-439a-b533-8362669cec92</uuid>
  <forward mode='bridge'/>
  <bridge name='external-net'/>
  <virtualport type='openvswitch'/>
</network>
EOF

virsh net-define /root/external-network.xml
virsh net-start external
virsh net-autostart external

vm-deploy.sh

#!/bin/sh

wget https://download.cirros-cloud.net/0.6.2/cirros-0.6.2-x86_64-disk.img
cp cirros-0.6.2-x86_64-disk.img /root/cirros1.img
virt-install --connect=qemu:///system --name=cirros1 --ram=512 --vcpus=1 --disk path=/root/cirros1.img,format=qcow2 --import --network network:ovs --osinfo=linux2022 --graphics vnc,listen=0.0.0.0 --noautoconsole