1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
#!/bin/bash
#
# Library of shell functions
#
generate_ssh_key() {
local user=${SUDO_USER:-$USER}
[ -f "${SSH_KEY}" ] || ssh-keygen -f "${SSH_KEY}" -N ''
install -o "${user}" -m 0600 "${SSH_KEY}" /tmp/
}
get_base_image() {
local base_image=$1
mkdir -p images
wget -P /tmp -nc "${base_image}"
}
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 $(virsh list --name --all | grep -P '\w{3}\d{2}'); do
virsh undefine --nvram "${node}"
done
}
prepare_vms() {
local -n vnodes=$1
local base_image=$2
cleanup_vms
get_base_image "${base_image}"
envsubst < user-data.template > user-data.sh
for node in "${vnodes[@]}"; do
# create/prepare images
./create-config-drive.sh -k "${SSH_KEY}.pub" -u user-data.sh \
-h "${node}" "images/mcp_${node}.iso"
cp "/tmp/${base_image/*\/}" "images/mcp_${node}.qcow2"
qemu-img resize "images/mcp_${node}.qcow2" 100G
done
}
create_networks() {
local -n vnode_networks=$1
# create required networks
for net in "${vnode_networks[@]}"; do
if virsh net-info "${net}" >/dev/null 2>&1; then
virsh net-destroy "${net}"
virsh net-undefine "${net}"
fi
# in case of custom network, host should already have the bridge in place
if [ -f "net_${net}.xml" ]; then
virsh net-define "net_${net}.xml"
virsh net-autostart "${net}"
virsh net-start "${net}"
fi
done
}
create_vms() {
local -n vnodes=$1
local -n vnodes_ram=$2
local -n vnodes_vcpus=$3
local -n vnode_networks=$4
# prepare network args
net_args=""
for net in "${vnode_networks[@]}"; do
net_type="network"
# in case of custom network, host should already have the bridge in place
if [ ! -f "net_${net}.xml" ]; then
net_type="bridge"
fi
net_args="${net_args} --network ${net_type}=${net},model=virtio"
done
# AArch64: prepare arch specific arguments
local virt_extra_args=""
if [ "$(uname -i)" = "aarch64" ]; then
# No Cirrus VGA on AArch64, use vga std
virt_extra_args="$virt_extra_args --video=vga"
fi
# create vms with specified options
for node in "${vnodes[@]}"; do
# shellcheck disable=SC2086
virt-install --name "${node}" \
--ram "${vnodes_ram[$node]}" --vcpus "${vnodes_vcpus[$node]}" \
--cpu host-passthrough --accelerate ${net_args} \
--disk path="$(pwd)/images/mcp_${node}.qcow2",format=qcow2,bus=virtio,cache=none,io=native \
--os-type linux --os-variant none \
--boot hd --vnc --console pty --autostart --noreboot \
--disk path="$(pwd)/images/mcp_${node}.iso",device=cdrom \
--noautoconsole \
${virt_extra_args}
done
}
update_pxe_network() {
local -n vnode_networks=$1
if virsh net-info "${vnode_networks[0]}" >/dev/null 2>&1; then
# set static ip address for salt master node, only if managed via virsh
# NOTE: below expr assume PXE network is always the first in domiflist
virsh net-update "${vnode_networks[0]}" add ip-dhcp-host \
"<host mac='$(virsh domiflist cfg01 | awk '/network/ {print $5; exit}')' name='cfg01' ip='${SALT_MASTER}'/>" --live
fi
}
start_vms() {
local -n vnodes=$1
# start vms
for node in "${vnodes[@]}"; do
virsh start "${node}"
sleep $[RANDOM%5+1]
done
}
check_connection() {
local total_attempts=60
local sleep_time=5
local attempt=1
set +e
echo '[INFO] Attempting to get into Salt master ...'
# wait until ssh on Salt master is available
while ((attempt <= 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
((attempt+=1))
done
set -e
}
parse_yaml() {
local prefix=$2
local s
local w
local fs
s='[[:space:]]*'
w='[a-zA-Z0-9_]*'
fs="$(echo @|tr @ '\034')"
sed -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'
}
|
