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
|
# Author:: "Joshua Colson" <joshua.colson@gmail.com>
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
Ohai.plugin(:VboxHost) do
depends "virtualization"
provides "vbox"
# determine if this host is configured with virtualbox or not
# the determination is ultimately controlled by the "virtualization" plugin
def vbox_host?
virtualization.dig("systems", "vbox") == "host"
end
# query virtualbox for each configured vm, as well as
# each guest"s individual configuration settings
def vboxmanage_list_vms
vms = Mash.new
if vbox_host?
so_cmd = "VBoxManage list --sorted vms"
logger.trace(so_cmd)
so = shell_out(so_cmd)
if so.exitstatus == 0
# parse the output
so.stdout.lines.each do |line|
case line
when /^"(\S*)" \{(\S*)\}$/
name = Regexp.last_match(1)
uuid = Regexp.last_match(2)
vms[name] = vboxmanage_vminfo(uuid)
end
end
end
end
vms
rescue Ohai::Exceptions::Exec
logger.trace("Plugin VboxHost: Could not run 'VBoxManage list --sorted vms'. Skipping data")
end
# query the vminfo for particular guest instance, normalizing
# the fields so that they"re not enclosed in double-quotes (")
def vboxmanage_vminfo(machine_id)
vm = Mash.new
if vbox_host?
so_cmd = "VBoxManage showvminfo #{machine_id} --machinereadable"
logger.trace(so_cmd)
so = shell_out(so_cmd)
if so.exitstatus == 0
so.stdout.lines.each do |line|
line.chomp!
left, right = line.split("=")
# remove enclosing quotes, if needed
key =
case left
when /^"(.*)"$/
Regexp.last_match(1)
else
left
end
# skip the name attribute since that is the parent key
next if left == "name"
# remove enclosing quotes, if needed
value =
case right
when /^"(.*)"$/
Regexp.last_match(1)
else
right
end
vm[key.downcase] = value
end
end
end
vm
rescue Ohai::Exceptions::Exec
logger.trace("Plugin VboxHost: Could not run '#{so_cmd}'. Skipping data")
end
# query virtualbox for a list of #{query_type} items
# these queries return a result set that is delimited by
# multiple successive newlines, with each block containing
# key/value pairs delimited by a colon (:) and column aligned
#
# the keys of each k/v pair are normalized to lowercase
def vboxmanage_list_blocks(query_type, name_key)
# ignore unrecognized query type
supported_queries = %w{
bridgedifs dhcpservers dvds hdds hostdvds
hostfloppies hostonlyifs natnets ostypes
}
return nil unless supported_queries.include? query_type
results = Mash.new
if vbox_host?
so_cmd = "VBoxManage list --sorted #{query_type}"
logger.trace(so_cmd)
so = shell_out(so_cmd)
# raise an exception if the command fails
# so.error!
if so.exitstatus == 0
# break the result into paragraph blocks, on successive newlines
so.stdout.each_line("") do |blk|
# remove the multiple newlines of each record
blk.chomp!.chomp!
# initialize a blank record hash
record = Mash.new
# parse the record block into key/value pairs
blk.each_line() do |line|
next unless line.include? ":"
# split the line into key/value pair
key, right = line.split(":", 2)
# strip the leading/trailing whitespace if the value is not nil
value = right.nil? ? "" : right.strip
record[key.downcase] = value
end
# insert the record into the list of results
if record.key? name_key.downcase
name = record.delete(name_key.downcase)
results[name] = record
end
end
end
end
results
rescue Ohai::Exceptions::Exec
logger.trace("Plugin VboxHost: Could not run '#{so_cmd}'. Skipping data")
end
# collect the data for a virtualization host running VirtualBox
collect_data(:default) do
ostypes = "ostypes"
guests = "guests"
natnets = "natnets"
hostonlyifs = "hostonlyifs"
bridgedifs = "bridgedifs"
dhcpservers = "dhcpservers"
hdds = "hdds"
dvds = "dvds"
hostdvds = "hostdvds"
hostfloppies = "hostfloppies"
if vbox_host?
vbox Mash.new unless vbox
# get a list of virtualbox virtual hard disk drives
vbox[ostypes] = vboxmanage_list_blocks(ostypes, "ID")
# get a list of virtualbox guest vms
vbox[guests] = vboxmanage_list_vms
# get a list of virtualbox virtual hard disk drives
vbox[hdds] = vboxmanage_list_blocks(hdds, "Location")
# get a list of virtualbox virtual dvd drives
vbox[dvds] = vboxmanage_list_blocks(dvds, "Location")
# get a list of virtualbox host dvd drives
vbox[hostdvds] = vboxmanage_list_blocks(hostdvds, "Name")
# get a list of virtualbox host floppy drives
vbox[hostfloppies] = vboxmanage_list_blocks(hostfloppies, "Name")
# get a list of virtualbox hostonly network interfaces
vbox[hostonlyifs] = vboxmanage_list_blocks(hostonlyifs, "Name")
# get a list of virtualbox bridged network interfaces
vbox[bridgedifs] = vboxmanage_list_blocks(bridgedifs, "Name")
# get a list of virtualbox dhcp servers
vbox[dhcpservers] = vboxmanage_list_blocks(dhcpservers, "NetworkName")
# get a list of virtualbox nat networks
vbox[natnets] = vboxmanage_list_blocks(natnets, "NetworkName")
end
vbox
rescue Ohai::Exceptions::Exec
logger.trace("Plugin VboxHost: Could not collect data for VirtualBox host. Skipping data")
end
end
|
