104 lines
No EOL
3.7 KiB
Bash
104 lines
No EOL
3.7 KiB
Bash
#!/bin/bash
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. ./lib/numbers.sh
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. ./lib/colors.sh
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. ./lib/db.sh
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. ./lib/metadata.sh
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. ./lib/public_ip.sh
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function check_qemu_exist {
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local vm_name="${1}"
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print_in_color "${COLOR_GREY}" "Check in db if ${vm_name} exist"
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check_in_db "vm" "${vm_name}"
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[ "$?" -eq "0" ] || return 1
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ps aux | grep -v grep | grep "${vm_name}" > /dev/null || return 1
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return 0
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}
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function create_tap {
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local tap_id="${1}"
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local bridge_name="${2}"
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local vpc_name="${3}"
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ip -n "${vpc_name}" tuntap add dev "tap${tap_id}" mode tap
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ip netns exec "${vpc_name}" brctl addif "${bridge_name}" "tap${tap_id}"
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ip -n "${vpc_name}" link set up dev "tap${tap_id}"
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}
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function qemu_start_vm {
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local ip="${1}"
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local subnet_name="${2}"
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local vpc_name="${3}"
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local vm_name="${4}"
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local volume_path="${5}"
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local ssh_key="${6}"
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local gateway_ip="${7}"
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local local_ip="${8}"
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local public_ip="${9}"
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local tap_id="$(generate_random_id 10)"
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local metadata_port="$(generate_random_number)"
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local subnet_id="$(echo "${subnet_name}" | cut -d\- -f2)"
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local mac="$(find_mac "${vpc_name}_br-${subnet_id}" "${ip}")"
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check_qemu_exist "${vm_name}"
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[ "$?" -eq "0" ] && \
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{
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print_in_color "${COLOR_ORANGE}" "Would have create ${vm_name}"
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} || \
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{
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print_in_color "${COLOR_GREEN}" "Create tap tap${tap_id}"
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add_in_db "vm" "${vm_name}" "${subnet_name}" "${tap_id}" "${metadata_port}" "${ip}" "${public_ip}"
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create_tap "${tap_id}" "br-${subnet_id}" "${vpc_name}"
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metadata_start "${vpc_name}" "${gateway_ip}" "${metadata_port}" "${vm_name}" "${ssh_key}"
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ip netns exec "${vpc_name}" iptables -t nat -A PREROUTING -s "${ip}/32" -d "169.254.169.254/32" -p tcp -m tcp --dport 80 -j DNAT --to-destination "${gateway_ip}:${metadata_port}"
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print_in_color "${COLOR_GREEN}" "Start vm ${vm_name}"
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ip netns exec "${vpc_name}" qemu-system-x86_64 \
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-enable-kvm \
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-cpu host \
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-m 512 \
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-smp 1 \
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-serial "unix:/tmp/${vm_name}.sock,server,nowait" \
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-monitor "unix:/tmp/${vm_name}.mon-sock,server,nowait" \
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-qmp "unix:/tmp/${vm_name}.qmp-sock,server,nowait" \
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-display "none" \
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-drive "file=${volume_path},if=virtio" \
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-netdev "tap,id=net0,ifname=tap${tap_id},script=no,downscript=no" \
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-device "virtio-net-pci,netdev=net0,mac=${mac}" \
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-daemonize
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add_public_ip "${vpc_name}" "${public_ip}" "${ip}" "${local_ip}"
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}
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}
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function qemu_stop_vm {
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local vm_name="${1}"
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local vm_def=$(get_from_db "vm" "${vm_name}")
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local subnet_name="$(echo "${vm_def}" | cut -d\; -f 2)"
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local tap_id="$(echo "${vm_def}" | cut -d\; -f 3)"
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local metadata_port="$(echo "${vm_def}" | cut -d\; -f 4)"
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local ip="$(echo "${vm_def}" | cut -d\; -f 5)"
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local public_ip="$(echo "${vm_def}" | cut -d\; -f 6)"
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local subnet_def=$(get_from_db "subnet" "${subnet_name}")
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local vpc_name="$(echo "${subnet_def}" | cut -d\; -f 2)"
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local gateway_ip="$(echo "${subnet_def}" | cut -d\; -f 5 | cut -d\/ -f 1)"
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local unix_path="/tmp/${vm_name}.qmp-sock"
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print_in_color "${COLOR_RED}" "Stop ${vm_name}"
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echo -e '{ "execute": "qmp_capabilities" }\n{ "execute": "system_powerdown" }' | socat - UNIX-CONNECT:"${unix_path}" > /dev/null
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print_in_color "${COLOR_RED}" "Delete tap${tap_id}"
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ip -n "${vpc_name}" link del dev "tap${tap_id}"
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metadata_stop "${vpc_name}" "${gateway_ip}" "${metadata_port}"
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delete_public_ip "${vpc_name}" "${public_ip}" "${ip}"
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delete_in_db "vm" "${vm_name}"
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print_in_color "${COLOR_GREY}" "Try to delete ${subnet_name}"
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count_in_db "vm" "${subnet_name}"
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[ "$?" -eq "0" ] && delete_subnet "${subnet_name}"
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} |