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#!/bin/bash -e
##############################################################################
# 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 {
# shellcheck disable=SC2155
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 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=$1; shift
local vnodes=("$@")
cleanup_vms
get_base_image "${base_image}" "${image_dir}"
# shellcheck disable=SC2016
envsubst '${SALT_MASTER},${CLUSTER_DOMAIN}' < \
user-data.template > user-data.sh
for node in "${vnodes[@]}"; do
# create/prepare images
./create-config-drive.sh -k "$(basename "${SSH_KEY}").pub" -u user-data.sh \
-h "${node}" "${image_dir}/mcp_${node}.iso"
cp "${image_dir}/${base_image/*\/}" "${image_dir}/mcp_${node}.qcow2"
qemu-img resize "${image_dir}/mcp_${node}.qcow2" 100G
done
}
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
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 \
${virt_extra_args}
done
}
function update_mcpcontrol_network {
# set static ip address for salt master node, MaaS node
# shellcheck disable=SC2155
local cmac=$(virsh domiflist cfg01 2>&1| awk '/mcpcontrol/ {print $5; exit}')
# shellcheck disable=SC2155
local amac=$(virsh domiflist mas01 2>&1| awk '/mcpcontrol/ {print $5; exit}')
virsh net-update "mcpcontrol" add ip-dhcp-host \
"<host mac='${cmac}' name='cfg01' ip='${SALT_MASTER}'/>" --live
[ -z "${amac}" ] || virsh net-update "mcpcontrol" add ip-dhcp-host \
"<host mac='${amac}' name='mas01' ip='${MAAS_IP}'/>" --live
}
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
)
}
|
