Class: Enviroblyd::Web

Inherits:
Object
  • Object
show all
Defined in:
lib/enviroblyd/web.rb

Constant Summary collapse

USER_AGENT = 
"enviroblyd #{Enviroblyd::VERSION}"
CONTENT_TYPE = 
"application/json"
WORKING_DIR = 
Pathname.new ENV.fetch("ENVIROBLYD_WORKING_DIR", "/var/envirobly/daemon")
INITIALIZED_FILE = 
WORKING_DIR.join "initialized"

Class Method Summary collapse

Class Method Details

.http(url, type: Net::HTTP::Get, params: nil, headers: {}, retry_interval: 3, retries: 10, backoff: :exponential, tries: 1) ⇒ Object 



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# File 'lib/enviroblyd/web.rb', line 32

def http(url, type: Net::HTTP::Get, params: nil, headers: {}, retry_interval: 3, retries: 10, backoff: :exponential, tries: 1)
  if retries <= tries
    puts "Retried #{url} #{tries} times. Aborting."
    return
  end

  uri = URI(url)
  http = Net::HTTP.new uri.host, uri.port
  http.use_ssl = true if uri.scheme == "https"
  http.open_timeout = 10
  http.read_timeout = 10

  request = type.new(uri, default_headers.merge(headers))
  request.content_type = CONTENT_TYPE
  request.body = JSON.dump(params) unless params.nil?

  response =
    begin
      http.request(request)
    rescue
      :retry
    end

  if response == :retry || (500..599).include?(response.code.to_i)
    sleep_time = (backoff == :exponential) ? (retry_interval * tries) : retry_interval
    puts "Retry #{uri} in #{sleep_time}s"
    sleep sleep_time
    http(url, type:, params:, retry_interval:, retries:, backoff:, tries: (tries + 1))
  else
    response
  end
end

.register ⇒ Object 



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# File 'lib/enviroblyd/web.rb', line 16

def register
  if File.exist?(INITIALIZED_FILE)
    puts "Skipping initialization because #{INITIALIZED_FILE} exists."
  else
    init_url = ENV.fetch "ENVIROBLYD_INIT_URL"
    puts "Init URL: #{init_url}"
    response = http(init_url, type: Net::HTTP::Put)
    puts "Init response code: #{response.code}"

    if response.code.to_i == 200
      FileUtils.mkdir_p WORKING_DIR
      File.write INITIALIZED_FILE, init_url
    end
  end
end