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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
#!/usr/bin/env python
"""virt top"""
# ideally we would like to use the monkeypatch but it is untested
# and experimental
# import defusedxml # type:ignore
# defusedxml.defuse_stdlib()
import argparse
import subprocess
import time
import typing
from defusedxml import ElementTree # type:ignore
from defusedxml import minidom
import libvirt # type:ignore
hv = ["qemu:///system"]
class Argparser: # pylint: disable=too-few-public-methods
"""Argparser class."""
def __init__(self):
self.parser = argparse.ArgumentParser()
self.parser.add_argument(
"--delay",
"-d",
type=float,
help="the delay between updates",
default=5,
)
self.args = self.parser.parse_args()
# pylint: disable=too-few-public-methods
class Colors:
"""static color definitions"""
purple = "\033[95m"
blue = "\033[94m"
green = "\033[92m"
yellow = "\033[93m"
red = "\033[91m"
grey = "\033[1;37m"
darkgrey = "\033[1;30m"
cyan = "\033[1;36m"
ENDC = "\033[0m"
BOLD = "\033[1m"
UNDERLINE = "\033[4m"
blueblue = "\x1b[38;5;24m"
greenie = "\x1b[38;5;23m"
goo = "\x1b[38;5;22m"
def get_network_info(xml) -> typing.Dict[str, str]:
"""returns the network info"""
result_dict = {}
interface_types = xml.getElementsByTagName("interface")
for interface_type in interface_types:
interface_nodes = interface_type.childNodes
for interface_node in interface_nodes:
if interface_node.nodeName[0:1] != "#":
for attr in interface_node.attributes.keys():
result_dict[
interface_node.attributes[attr].name
] = interface_node.attributes[attr].value
return result_dict
def get_ip_by_arp(mac: str) -> str:
"""get ip adress using arp"""
# arp -n | grep xx:xx:xx:xx:xx:xx | gawk '{print $1}'
try:
proc1 = subprocess.run(["arp", "-n"], capture_output=True, check=True)
proc2 = subprocess.run(
["grep", mac], input=proc1.stdout, capture_output=True, check=True
)
proc3 = subprocess.run(
["awk", "{print $1}"],
input=proc2.stdout,
capture_output=True,
check=True,
)
ip_address = proc3.stdout.decode("utf-8").strip("\n")
except:
ip_address = "N/A"
return ip_address
def get_disk_info(xml) -> typing.Dict[str, str]:
"""returns the disk info"""
result_dict: typing.Dict = {}
disk_types = xml.getElementsByTagName("disk")
for disk_type in disk_types:
disk_nodes = disk_type.childNodes
for disk_node in disk_nodes:
if disk_node.nodeName[0:1] != "#":
for attr in disk_node.attributes.keys():
result_dict[
disk_node.attributes[attr].name
] = disk_node.attributes[attr].value
return result_dict
def ffs(offset, header_list, numbered, *args):
"""A simple columnar printer"""
max_column_width = []
lines = []
numbers_f = []
dummy = []
if numbered:
numbers_f.extend(range(1, len(args[-1]) + 1))
max_column_width.append(
max([len(repr(number)) for number in numbers_f])
)
header_list.insert(0, "idx")
for arg in args:
max_column_width.append(max([len(repr(argette)) for argette in arg]))
index = range(0, len(header_list))
for header, width, i in zip(header_list, max_column_width, index):
max_column_width[i] = max(len(header), width) + offset
for i in index:
dummy.append(
Colors.greenie
+ Colors.BOLD
+ header_list[i].ljust(max_column_width[i])
+ Colors.ENDC
)
lines.append("".join(dummy))
dummy.clear()
index2 = range(0, len(args[-1]))
for i in index2:
if numbered:
dummy.append(
Colors.goo
+ Colors.BOLD
+ repr(i).ljust(max_column_width[0])
+ Colors.ENDC
)
for arg, width in zip(args, max_column_width[1:]):
dummy.append(
Colors.blueblue + repr(arg[i]).ljust(width) + Colors.ENDC
)
else:
for arg, width in zip(args, max_column_width):
dummy.append(
Colors.blueblue + repr(arg[i]).ljust(width) + Colors.ENDC
)
lines.append("".join(dummy))
dummy.clear()
return lines
def size_abr(num: float, shift_by: float) -> str:
num = num * shift_by
if num < 1000:
return repr(num)
elif num < 1_000_000.0:
return repr(num / 1_000) + " KB"
elif num < 1_000_000_000:
return repr(num / 1_000_000) + " MB"
elif num < 1_000_000_000_000:
return repr(num / 1_000_000_000) + " GB"
return "N/A"
def main() -> None:
"""entrypoint"""
# argparser = Argparser()
name = []
cpu_times = []
mem_actual = []
mem_unused = []
write_bytes = []
read_bytes = []
macs = []
ips = []
for hv_host in hv:
conn = libvirt.openReadOnly(hv_host)
active_hosts = conn.listDomainsID()
for host_id in active_hosts:
dom = conn.lookupByID(host_id)
cpu_times.append(
repr(
int(
dom.getCPUStats(total=True)[0]["cpu_time"]
/ 1_000_000_000
)
)
+ " s"
)
raw_xml = dom.XMLDesc()
xml = minidom.parseString(raw_xml)
name.append(dom.name())
mem_stats = dom.memoryStats()
mem_actual.append(size_abr(mem_stats["actual"], 1000))
mem_unused.append(size_abr(mem_stats["unused"], 1000))
tree = ElementTree.fromstring(dom.XMLDesc())
iface = tree.find("devices/interface/target").get("dev")
stats = dom.interfaceStats(iface)
write_bytes.append(size_abr(stats[4], 1))
read_bytes.append(size_abr(stats[0], 1))
get_disk_info(xml)
network_info = get_network_info(xml)
macs.append(network_info["address"])
ips.append(get_ip_by_arp(network_info["address"]))
lines = ffs(
3,
[
"name",
"cpu",
"mem_actual",
"mem_unused",
"write_B",
"read_B",
"MAC",
"IP",
],
True,
name,
cpu_times,
mem_actual,
mem_unused,
write_bytes,
read_bytes,
macs,
ips,
)
for line in lines:
print(line)
# time.sleep(argparser.args.delay)
if __name__ == "__main__":
main()
|
