#!/bin/bash -e
# shellcheck disable=SC2155,SC1001
##############################################################################
# Copyright (c) 2017 Mirantis Inc., Enea AB and others.
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
#
# Library of shell functions
#
function generate_ssh_key {
local mcp_ssh_key=$(basename "${SSH_KEY}")
local user=${USER}
if [ -n "${SUDO_USER}" ] && [ "${SUDO_USER}" != 'root' ]; then
user=${SUDO_USER}
fi
if [ -f "${SSH_KEY}" ]; then
cp "${SSH_KEY}" .
ssh-keygen -f "${mcp_ssh_key}" -y > "${mcp_ssh_key}.pub"
fi
[ -f "${mcp_ssh_key}" ] || ssh-keygen -f "${mcp_ssh_key}" -N ''
sudo install -D -o "${user}" -m 0600 "${mcp_ssh_key}" "${SSH_KEY}"
}
function get_base_image {
local base_image=$1
local image_dir=$2
mkdir -p "${image_dir}"
wget -P "${image_dir}" -N "${base_image}"
}
function mount_image {
local image=$1
local image_dir=$2
OPNFV_MNT_DIR="${image_dir}/ubuntu"
sudo modprobe nbd loop
# Find free nbd, loop devices
for dev in '/sys/class/block/nbd'*; do
if [ "$(cat "${dev}/size")" = '0' ]; then
OPNFV_NBD_DEV=/dev/$(basename "${dev}")
break
fi
done
OPNFV_LOOP_DEV=$(losetup -f)
export OPNFV_MNT_DIR OPNFV_LOOP_DEV
[ -n "${OPNFV_NBD_DEV}" ] && [ -n "${OPNFV_LOOP_DEV}" ] || exit 1
qemu-img resize "${image_dir}/${image}" 3G
sudo qemu-nbd --connect="${OPNFV_NBD_DEV}" --aio=native --cache=none \
"${image_dir}/${image}"
sleep 5 # /dev/nbdNp1 takes some time to come up
# Hardcode partition index to 1, unlikely to change for Ubuntu UCA image
if sudo growpart "${OPNFV_NBD_DEV}" 1; then
sudo e2fsck -yf "${OPNFV_NBD_DEV}p1" && sudo resize2fs "${OPNFV_NBD_DEV}p1"
fi
# grub-update does not like /dev/nbd*, so use a loop device to work around it
sudo losetup "${OPNFV_LOOP_DEV}" "${OPNFV_NBD_DEV}p1"
mkdir -p "${OPNFV_MNT_DIR}"
sudo mount "${OPNFV_LOOP_DEV}" "${OPNFV_MNT_DIR}"
sudo mount -t proc proc "${OPNFV_MNT_DIR}/proc"
sudo mount -t sysfs sys "${OPNFV_MNT_DIR}/sys"
sudo mount -o bind /dev "${OPNFV_MNT_DIR}/dev"
sudo mkdir -p "${OPNFV_MNT_DIR}/run/resolvconf"
sudo cp /etc/resolv.conf "${OPNFV_MNT_DIR}/run/resolvconf"
echo "GRUB_DISABLE_OS_PROBER=true" | \
sudo tee -a "${OPNFV_MNT_DIR}/etc/default/grub"
sudo sed -i -e 's/^\(GRUB_TIMEOUT\)=.*$/\1=1/g' -e 's/^GRUB_HIDDEN.*$//g' \
"${OPNFV_MNT_DIR}/etc/default/grub"
}
function apt_repos_pkgs_image {
local apt_key_urls=(${1//,/ })
local all_repos=(${2//,/ })
local pkgs_i=(${3//,/ })
local pkgs_r=(${4//,/ })
[ -n "${OPNFV_MNT_DIR}" ] || exit 1
# APT keys
if [ "${#apt_key_urls[@]}" -gt 0 ]; then
for apt_key in "${apt_key_urls[@]}"; do
sudo chroot "${OPNFV_MNT_DIR}" /bin/bash -c \
"wget -qO - '${apt_key}' | apt-key add -"
done
fi
# Additional repositories
for repo_line in "${all_repos[@]}"; do
# <repo_name>|<repo prio>|deb|[arch=<arch>]|<repo url>|<dist>|<repo comp>
local repo=(${repo_line//|/ })
[ "${#repo[@]}" -gt 5 ] || continue
# NOTE: Names and formatting are compatible with Salt linux.system.repo
cat <<-EOF | sudo tee "${OPNFV_MNT_DIR}/etc/apt/preferences.d/${repo[0]}"
Package: *
Pin: release a=${repo[-2]}
Pin-Priority: ${repo[1]}
EOF
echo "${repo[@]:2}" | sudo tee \
"${OPNFV_MNT_DIR}/etc/apt/sources.list.d/${repo[0]}.list"
done
# Install packages
if [ "${#pkgs_i[@]}" -gt 0 ]; then
sudo DEBIAN_FRONTEND="noninteractive" \
chroot "${OPNFV_MNT_DIR}" apt-get update
sudo DEBIAN_FRONTEND="noninteractive" FLASH_KERNEL_SKIP="true" \
chroot "${OPNFV_MNT_DIR}" apt-get install -y "${pkgs_i[@]}"
fi
# Remove packages
if [ "${#pkgs_r[@]}" -gt 0 ]; then
sudo DEBIAN_FRONTEND="noninteractive" FLASH_KERNEL_SKIP="true" \
chroot "${OPNFV_MNT_DIR}" apt-get purge -y "${pkgs_r[@]}"
fi
# Disable cloud-init metadata service datasource
sudo mkdir -p "${OPNFV_MNT_DIR}/etc/cloud/cloud.cfg.d"
echo "datasource_list: [ NoCloud, None ]" | sudo tee \
"${OPNFV_MNT_DIR}/etc/cloud/cloud.cfg.d/95_real_datasources.cfg"
}
function cleanup_mounts {
# Remove any mounts, loop and/or nbd devs created while patching base image
if [ -n "${OPNFV_MNT_DIR}" ] && [ -d "${OPNFV_MNT_DIR}" ]; then
if [ -f "${OPNFV_MNT_DIR}/boot/grub/grub.cfg" ]; then
# Grub thinks it's running from a live CD
sudo sed -i -e 's/^\s*set root=.*$//g' -e 's/^\s*loopback.*$//g' \
"${OPNFV_MNT_DIR}/boot/grub/grub.cfg"
fi
sudo rm -f "${OPNFV_MNT_DIR}/run/resolvconf/resolv.conf"
sync
if mountpoint -q "${OPNFV_MNT_DIR}"; then
sudo umount -l "${OPNFV_MNT_DIR}" || true
fi
fi
if [ -n "${OPNFV_LOOP_DEV}" ] && \
losetup "${OPNFV_LOOP_DEV}" 1>&2 > /dev/null; then
sudo losetup -d "${OPNFV_LOOP_DEV}"
fi
if [ -n "${OPNFV_NBD_DEV}" ]; then
sudo qemu-nbd -d "${OPNFV_NBD_DEV}" || true
fi
}
function cleanup_uefi {
# Clean up Ubuntu boot entry if cfg01, kvm nodes online from previous deploy
# shellcheck disable=SC2086
ssh ${SSH_OPTS} "${SSH_SALT}" "sudo salt -C 'kvm* or cmp*' cmd.run \
\"which efibootmgr > /dev/null 2>&1 && \
efibootmgr | grep -oP '(?<=Boot)[0-9]+(?=.*ubuntu)' | \
xargs -I{} efibootmgr --delete-bootnum --bootnum {}; \
rm -rf /boot/efi/*\"" || true
}
function cleanup_vms {
# clean up existing nodes
for node in $(virsh list --name | grep -P '\w{3}\d{2}'); do
virsh destroy "${node}"
done
for node in $(virsh list --name --all | grep -P '\w{3}\d{2}'); do
virsh domblklist "${node}" | awk '/^.da/ {print $2}' | \
xargs --no-run-if-empty -I{} sudo rm -f {}
virsh undefine "${node}" --remove-all-storage --nvram
done
}
function prepare_vms {
local base_image=$1; shift
local image_dir=$1; shift
local repos_pkgs_str=$1; shift # ^-sep list of repos, pkgs to install/rm
local vnodes=("$@")
local image=base_image_opnfv_fuel.img
cleanup_uefi
cleanup_vms
get_base_image "${base_image}" "${image_dir}"
rm -f "${image_dir}/${image%.*}"*
if [[ ! "${repos_pkgs_str}" =~ ^\^+$ ]]; then
IFS='^' read -r -a repos_pkgs <<< "${repos_pkgs_str}"
cp "${image_dir}/${base_image/*\/}" "${image_dir}/${image}"
mount_image "${image}" "${image_dir}"
apt_repos_pkgs_image "${repos_pkgs[@]:0:4}"
cleanup_mounts
else
ln -sf "${image_dir}/${base_image/*\/}" "${image_dir}/${image}"
fi
# CWD should be <mcp/scripts>
# shellcheck disable=SC2016
envsubst '${SALT_MASTER},${CLUSTER_DOMAIN}' < \
user-data.template > user-data.sh
# Create config ISO and resize OS disk image for each foundation node VM
for node in "${vnodes[@]}"; do
./create-config-drive.sh -k "$(basename "${SSH_KEY}").pub" -u user-data.sh \
-h "${node}" "${image_dir}/mcp_${node}.iso"
cp "${image_dir}/${image}" "${image_dir}/mcp_${node}.qcow2"
qemu-img resize "${image_dir}/mcp_${node}.qcow2" 100G
done
# VCP VMs base image specific changes
if [[ ! "${repos_pkgs_str}" =~ \^{3}$ ]] && [ -n "${repos_pkgs[*]:4}" ]; then
mount_image "${image}" "${image_dir}"
apt_repos_pkgs_image "${repos_pkgs[@]:4:4}"
cleanup_mounts
ln -sf "${image_dir}/${image}" "${image_dir}/${image%.*}_vcp.img"
fi
}
function create_networks {
local vnode_networks=("$@")
# create required networks, including constant "mcpcontrol"
# FIXME(alav): since we renamed "pxe" to "mcpcontrol", we need to make sure
# we delete the old "pxe" virtual network, or it would cause IP conflicts.
# FIXME(alav): The same applies for "fuel1" virsh network.
for net in "fuel1" "pxe" "mcpcontrol" "${vnode_networks[@]}"; do
if virsh net-info "${net}" >/dev/null 2>&1; then
virsh net-destroy "${net}" || true
virsh net-undefine "${net}"
fi
# in case of custom network, host should already have the bridge in place
if [ -f "net_${net}.xml" ] && [ ! -d "/sys/class/net/${net}/bridge" ]; then
virsh net-define "net_${net}.xml"
virsh net-autostart "${net}"
virsh net-start "${net}"
fi
done
}
function create_vms {
local image_dir=$1; shift
# vnode data should be serialized with the following format:
# '<name0>,<ram0>,<vcpu0>|<name1>,<ram1>,<vcpu1>[...]'
IFS='|' read -r -a vnodes <<< "$1"; shift
local vnode_networks=("$@")
# AArch64: prepare arch specific arguments
local virt_extra_args=""
if [ "$(uname -i)" = "aarch64" ]; then
# No Cirrus VGA on AArch64, use virtio instead
virt_extra_args="$virt_extra_args --video=virtio"
fi
# create vms with specified options
for serialized_vnode_data in "${vnodes[@]}"; do
IFS=',' read -r -a vnode_data <<< "${serialized_vnode_data}"
# prepare network args
net_args=" --network network=mcpcontrol,model=virtio"
if [ "${vnode_data[0]}" = "mas01" ]; then
# MaaS node's 3rd interface gets connected to PXE/Admin Bridge
vnode_networks[2]="${vnode_networks[0]}"
fi
for net in "${vnode_networks[@]:1}"; do
net_args="${net_args} --network bridge=${net},model=virtio"
done
# shellcheck disable=SC2086
virt-install --name "${vnode_data[0]}" \
--ram "${vnode_data[1]}" --vcpus "${vnode_data[2]}" \
--cpu host-passthrough --accelerate ${net_args} \
--disk path="${image_dir}/mcp_${vnode_data[0]}.qcow2",format=qcow2,bus=virtio,cache=none,io=native \
--os-type linux --os-variant none \
--boot hd --vnc --console pty --autostart --noreboot \
--disk path="${image_dir}/mcp_${vnode_data[0]}.iso",device=cdrom \
--noautoconsole \
${virt_extra_args}
done
}
function update_mcpcontrol_network {
# set static ip address for salt master node, MaaS node
local cmac=$(virsh domiflist cfg01 2>&1| awk '/mcpcontrol/ {print $5; exit}')
local amac=$(virsh domiflist mas01 2>&1| awk '/mcpcontrol/ {print $5; exit}')
virsh net-update "mcpcontrol" add ip-dhcp-host \
"<host mac='${cmac}' name='cfg01' ip='${SALT_MASTER}'/>" --live --config
[ -z "${amac}" ] || virsh net-update "mcpcontrol" add ip-dhcp-host \
"<host mac='${amac}' name='mas01' ip='${MAAS_IP}'/>" --live --config
}
function start_vms {
local vnodes=("$@")
# start vms
for node in "${vnodes[@]}"; do
virsh start "${node}"
sleep $((RANDOM%5+1))
done
}
function check_connection {
local total_attempts=60
local sleep_time=5
set +e
echo '[INFO] Attempting to get into Salt master ...'
# wait until ssh on Salt master is available
# shellcheck disable=SC2034
for attempt in $(seq "${total_attempts}"); do
# shellcheck disable=SC2086
ssh ${SSH_OPTS} "ubuntu@${SALT_MASTER}" uptime
case $? in
0) echo "${attempt}> Success"; break ;;
*) echo "${attempt}/${total_attempts}> ssh server ain't ready yet, waiting for ${sleep_time} seconds ..." ;;
esac
sleep $sleep_time
done
set -e
}
function parse_yaml {
local prefix=$2
local s
local w
local fs
s='[[:space:]]*'
w='[a-zA-Z0-9_]*'
fs="$(echo @|tr @ '\034')"
sed -e 's|---||g' -ne "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
-e "s|^\($s\)\($w\)$s[:-]$s\(.*\)$s\$|\1$fs\2$fs\3|p" "$1" |
awk -F"$fs" '{
indent = length($1)/2;
vname[indent] = $2;
for (i in vname) {if (i > indent) {delete vname[i]}}
if (length($3) > 0) {
vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
printf("%s%s%s=(\"%s\")\n", "'"$prefix"'",vn, $2, $3);
}
}' | sed 's/_=/+=/g'
}
function wait_for {
# Execute in a subshell to prevent local variable override during recursion
(
local total_attempts=$1; shift
local cmdstr=$*
local sleep_time=10
echo "[NOTE] Waiting for cmd to return success: ${cmdstr}"
# shellcheck disable=SC2034
for attempt in $(seq "${total_attempts}"); do
# shellcheck disable=SC2015
eval "${cmdstr}" && return 0 || true
echo -n '.'; sleep "${sleep_time}"
done
return 1
)
}