108 lines
3.4 KiB
Bash
Executable File
108 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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# set -x
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storage_path="/storage/images/maas"
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storage_format="raw"
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compute="maas-node"
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node_count=20
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node_start=1
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node_cpus=4
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node_ram=4096
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nic_model="virtio"
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network="maas"
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d1=50
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d2=100
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d3=100
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create_vms() {
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create_storage & build_vms
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}
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wipe_vms() {
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destroy_vms
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}
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create_storage() {
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for ((machine="$node_start"; machine<=node_count; machine++)); do
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printf -v maas_node %s-%02d "$compute" "$machine"
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mkdir -p "$storage_path/$maas_node"
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/usr/bin/qemu-img create -f "$storage_format" "$storage_path/$maas_node/$maas_node-d1.img" "$d1"G &
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/usr/bin/qemu-img create -f "$storage_format" "$storage_path/$maas_node/$maas_node-d2.img" "$d2"G &
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/usr/bin/qemu-img create -f "$storage_format" "$storage_path/$maas_node/$maas_node-d3.img" "$d3"G &
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done
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}
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build_vms() {
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for ((virt="$node_start"; virt<=node_count; virt++)); do
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printf -v virt_node %s-%02d "$compute" "$virt"
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ram="$node_ram"
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vcpus="$node_cpus"
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bus="scsi"
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macaddr1=$(printf '52:54:00:63:%02x:%02x\n' "$((RANDOM%256))" "$((RANDOM%256))")
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macaddr2=$(printf '52:54:00:63:%02x:%02x\n' "$((RANDOM%256))" "$((RANDOM%256))")
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virt-install -v --noautoconsole \
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--print-xml \
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--autostart \
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--boot network,hd,menu=on \
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--video qxl,vram=256 \
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--channel spicevmc \
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--name "$virt_node" \
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--ram "$ram" \
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--vcpus "$vcpus" \
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--console pty,target_type=serial \
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--graphics spice,clipboard_copypaste=no,mouse_mode=client,filetransfer_enable=off \
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--cpu host-passthrough,cache.mode=passthrough \
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--controller "$bus",model=virtio-scsi,index=0 \
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--disk path="$storage_path/$virt_node/$virt_node-d1.img,format=$storage_format,size=$d1,bus=$bus,io=native,cache=directsync" \
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--disk path="$storage_path/$virt_node/$virt_node-d2.img,format=$storage_format,size=$d2,bus=$bus,io=native,cache=directsync" \
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--disk path="$storage_path/$virt_node/$virt_node-d3.img,format=$storage_format,size=$d3,bus=$bus,io=native,cache=directsync" \
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--network=network=$network,mac="$macaddr1",model=$nic_model \
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--network=network=$network,mac="$macaddr2",model=$nic_model > "$virt_node.xml" &&
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virsh define "$virt_node.xml"
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virsh start "$virt_node" &
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done
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}
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destroy_vms() {
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for ((node="$node_start"; node<=node_count; node++)); do
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printf -v compute_node %s-%02d "$compute" "$node"
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# If the domain is running, this will complete, else throw a warning
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virsh --connect qemu:///system destroy "$compute_node"
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# Actually remove the VM
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virsh --connect qemu:///system undefine "$compute_node"
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# Remove the three storage volumes from disk
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for disk in {1..3}; do
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virsh vol-delete --pool "$compute_node" "$compute_node-d${disk}.img"
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done
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rm -rf "$storage_path/$compute_node/"
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sync
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rm -f "$compute_node.xml" \
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"/etc/libvirt/qemu/$compute_node.xml" \
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"/etc/libvirt/storage/$compute_node.xml" \
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"/etc/libvirt/storage/autostart/$compute_node.xml"
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done
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}
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while getopts ":cw" opt; do
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case $opt in
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c)
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create_vms
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;;
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w)
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wipe_vms
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;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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;;
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esac
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done
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