Module: Ohai::Mixin::AlibabaMetadata

Defined in:
lib/ohai/mixin/alibaba_metadata.rb

Overview

This code parses the Alibaba Instance Metadata API to provide details of the running instance.

Note: As of 2021-02-07 there is only one API release so we’re not implementing logic like the ec2 or azure mixins where we have to find the latest supported release

Instance Method Summary collapse

Instance Method Details

#fetch_metadata(id = "", is_directory = true) ⇒ Object 



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# File 'lib/ohai/mixin/alibaba_metadata.rb', line 44

def fetch_metadata(id = "", is_directory = true)
  response = http_get(id)
  if response.code == "200"

    if !is_directory
      json_data = parse_json(response.body)
      if json_data.nil?
        response.body
      else
        json_data
      end
    elsif is_directory
      temp = {}
      response.body.split("\n").each do |sub_attr|
        if "#{id}/#{sub_attr}" != "/user-data"
          uri = id == "" ? "#{id}#{sub_attr}/" : "#{id}#{sub_attr}"
          temp[sanitize_key(sub_attr).gsub(/_$/, "")] = fetch_metadata(uri, has_trailing_slash?(uri))
        end
      end
      temp
    end
  else
    logger.warn("Mixin AlibabaMetadata: Received response code #{response.code} requesting metadata for id='#{id}'")
    nil
  end
end

#has_trailing_slash?(data) ⇒ Boolean

Returns is there a trailing /?.

Parameters:

Returns:

  • (Boolean) —

    is there a trailing /?



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# File 'lib/ohai/mixin/alibaba_metadata.rb', line 74

def has_trailing_slash?(data)
  !!(data =~ %r{/$})
end

#http_get(uri) ⇒ Object 



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# File 'lib/ohai/mixin/alibaba_metadata.rb', line 37

def http_get(uri)
  conn = Net::HTTP.start(ALI_METADATA_ADDR)
  conn.read_timeout = 6
  conn.keep_alive_timeout = 6
  conn.get("/2016-01-01/#{uri}", { "User-Agent" => "chef-ohai/#{Ohai::VERSION}" })
end

#sanitize_key(key) ⇒ Object 



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# File 'lib/ohai/mixin/alibaba_metadata.rb', line 78

def sanitize_key(key)
  key.gsub(%r{\-|/}, "_")
end