blob: 1f6622235fdd489c3b3d8b21f40601d020f57a19 (
plain)
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
|
# frozen_string_literal: true
#
# Author:: Ranjib Dey (<dey.ranjib@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.
require "net/http" unless defined?(Net::HTTP)
require_relative "../mixin/json_helper"
include Ohai::Mixin::JsonHelper
module Ohai
module Mixin
module GCEMetadata
# Trailing dot to host is added to avoid DNS search path
GCE_METADATA_ADDR ||= "metadata.google.internal."
GCE_METADATA_URL ||= "/computeMetadata/v1/?recursive=true"
# fetch the meta content with a timeout and the required header
def http_get(uri)
conn = Net::HTTP.start(GCE_METADATA_ADDR)
conn.read_timeout = 6
conn.get(uri, {
"Metadata-Flavor" => "Google",
"User-Agent" => "chef-ohai/#{Ohai::VERSION}",
})
end
def fetch_metadata(id = "")
response = http_get("#{GCE_METADATA_URL}/#{id}")
if response.code == "200"
json_data = parse_json(response.body)
if json_data.nil?
logger.warn("Mixin GCEMetadata: Metadata response is NOT valid JSON for id='#{id}'")
if has_trailing_slash?(id) || (id == "")
temp = {}
response.body.split("\n").each do |sub_attr|
temp[sanitize_key(sub_attr)] = fetch_metadata("#{id}#{sub_attr}")
end
temp
else
response.body
end
else
json_data
end
else
logger.warn("Mixin GCEMetadata: Received response code #{response.code} requesting metadata for id='#{id}'")
nil
end
end
# @param data [String]
#
# @return [Boolean] is there a trailing /?
def has_trailing_slash?(data)
!!( data =~ %r{/$} )
end
def sanitize_key(key)
key.gsub(%r{\-|/}, "_")
end
end
end
end
|
