Class: SeyrenAPI

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(seyren_base_url) ⇒ SeyrenAPI

Returns a new instance of SeyrenAPI.



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# File 'lib/seyren_api.rb', line 10

def initialize(seyren_base_url)
  @seyren_base_url = seyren_base_url
end

Instance Attribute Details

#seyren_base_url ⇒ Object

Returns the value of attribute seyren_base_url.



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# File 'lib/seyren_api.rb', line 7

def seyren_base_url
  @seyren_base_url
end

Instance Method Details

#create_seyren_check(check_name, check_graphite_target, check_warn, check_error) ⇒ Object 



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# File 'lib/seyren_api.rb', line 31

def create_seyren_check(check_name, check_graphite_target, check_warn, check_error)
  create_check = {
                  'enabled' => true,
                  'name'    => check_name,
                  'target'  => check_graphite_target,
                  'warn'    => check_warn.to_s,
                  'error'   => check_error.to_s
                 }

  json = create_check.to_json

  cmdout = `curl -si -X POST -d '#{json}' '#{@seyren_base_url}' --header 'Content-Type:application/json'`
  puts cmdout

  http_response_status_code = cmdout[/HTTP\/1\.1 (\d+)/,1]

  seyren_check_id = nil
  if http_response_status_code == '201'
    # e.g. 5192a13ee4b0fe0c215fa33e
    seyren_check_id = cmdout[/\/seyren\/api\/checks\/([0-9a-z]+)/,1]
  end

  return http_response_status_code, seyren_check_id
end

#create_standard_subscription_for_seyren_check(check_id, check_subscriber_email_address) ⇒ Object

note: standard subscription of type ‘enabled on ALL days, for ALL hours i.e. 24x7’



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# File 'lib/seyren_api.rb', line 58

def create_standard_subscription_for_seyren_check(check_id, check_subscriber_email_address)
  create_standard_subscription = {
                                  'enabled'  => true,
                                  'mo'       => true,
                                  'tu'       => true,
                                  'we'       => true,
                                  'th'       => true,
                                  'fr'       => true,
                                  'sa'       => true,
                                  'su'       => true,
                                  'fromTime' => '0000',
                                  'toTime'   => '2359',
                                  'target'   => check_subscriber_email_address,
                                  'type'     => 'EMAIL'
                                 }

  json = create_standard_subscription.to_json
  subscription_url = @seyren_base_url + '/' + check_id + '/subscriptions'

  cmdout = `curl -si -X POST -d '#{json}' '#{subscription_url}' --header 'Content-Type:application/json'`
  puts cmdout

  http_response_status_code = cmdout[/HTTP\/1\.1 (\d+)/,1]

  return http_response_status_code
end

#delete_seyren_check(check_id) ⇒ Object 



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# File 'lib/seyren_api.rb', line 15

def delete_seyren_check(check_id)
  url = @seyren_base_url + '/' + check_id
  # Caution: "Brittle Code in all functions"
  # any single char change in output from seyren or possibly even
  # curl ver update will mess up the code in this API class.
  # TODO: Preferably switch from curl to any appropriate Ruby lib
  # that can help with the http call + parsing of results/codes/json response.
  cmdout = `curl -si -X DELETE #{url}`
  puts cmdout

  http_response_status_code = cmdout[/HTTP\/1\.1 (\d+)/,1]

  return http_response_status_code
end

#fetch_all_seyren_checks ⇒ Object

sample output of curl command (incl response header)

HTTP/1.1 200 OK Date: Wed, 14 Aug 2013 22:08:00 GMT Server: Apache-Coyote/1.1 Content-Type: application/json Via: 1.1 seyren.staging.techco.com Transfer-Encoding: chunked

{“id”:“520ac8d1e4b0ab4e71f3c3f5”, “name”:“staging ui ui-staging ip-10-176-197-226_us-west-1_compute_internal cpu”, “target”:“averageSeries(groupByNode(collectd.ui.ip-10-176-197-226_us-west-1_compute_internal.*.cpu- {user,system,wait,nice,steal,softirq,interrupt,3,\"sumSeries\"))”,“warn”:“75”,“error”:“90”, “enabled”:true,“state”:“OK”,“subscriptions”:[“target”:“[email protected]”,“type”:“EMAIL”, “su”:true,“mo”:true,“tu”:true,“we”:true,“th”:true,“fr”:true,“sa”:true, “fromTime”:“0000”,“toTime”:“2359”,“enabled”:true]}, 

...<snip>similar as above</snip>...,"enabled":true]}],

“items”:0, “start”:0, “total”:2}



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# File 'lib/seyren_api.rb', line 110

def fetch_all_seyren_checks()
  cmdout = `curl -si '#{@seyren_base_url}'`
  puts cmdout

  json = cmdout[/^(\{\"values\":.*)/,1]
  http_response_status_code = cmdout[/HTTP\/1\.1 (\d+)/,1]

  seyren_id_to_check_hash = Hash.new
  if http_response_status_code == '200'
    parsed_checks = JSON.parse(json)
    parsed_checks['values'].each do |check|
      seyren_id_to_check_hash[check['id']] = check
    end
  end

  return http_response_status_code, seyren_id_to_check_hash
end

#fetch_seyren_check(check_id) ⇒ Object

sample output of curl command (incl response header)

HTTP/1.1 200 OK Date: Thu, 15 Aug 2013 01:55:48 GMT Server: Apache-Coyote/1.1 Content-Type: application/json Via: 1.1 seyren.staging.techco.com Transfer-Encoding: chunked

“name”:“staging ui ui-staging ip-10-176-197-226_us-west-1_compute_internal cpu”, “target”:“averageSeries(groupByNode(collectd.ui.ip-10-176-197-226_us-west-1_compute_internal.*.cpu- {user,system,wait,nice,steal,softirq,interrupt,3,\"sumSeries\"))”,“warn”:“75”,“error”:“90”, “enabled”:true,“state”:“OK”,“subscriptions”:[“target”:“[email protected]”,“type”:“EMAIL”, “su”:true,“mo”:true,“tu”:true,“we”:true,“th”:true,“fr”:true,“sa”:true, “fromTime”:“0000”,“toTime”:“2359”,“enabled”:true]}



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# File 'lib/seyren_api.rb', line 147

def fetch_seyren_check(check_id)
  url = @seyren_base_url + '/' + check_id

  cmdout = `curl -si '#{url}'`
  puts cmdout

  json = cmdout[/^(\{\"id\":.*)/,1]
  http_response_status_code = cmdout[/HTTP\/1\.1 (\d+)/,1]

  seyren_check_hash = Hash.new
  if http_response_status_code == '200'
    seyren_check_hash = JSON.parse(json)
  end

  return http_response_status_code, seyren_check_hash
end