This service checks an gmail address that you specify for all emails from your monitoring service. If it find ones, it then locates its ID, then hits the PagerDuty API to resolve that incident.

pd-integration-gmail-resolve.rb

require 'rubygems'
require 'gmail'
require 'curb'
require 'json'

# Gmail Credentials
username="CHANGE_THIS"
password="CHANGE_THIS"

puts ("Connecting to Gmail")
gmail=Gmail.new(username,password)

puts ("Connected")


# Get CLEARED message Alert ID, then delete the email
puts ("Checking messages for CLEARED notificatons")


# Exits if there are no new CLEARED messages
count="0"
check_email="change_this"
count=gmail.label("cleared").count(:from => check_email)
if count == 0
        puts ("No CLEARED messages found. Exiting...")
        exit
end

puts ("Getting Alert ID Number:")

gm=gmail.label("cleared").emails(:from => check_email)

value="none"
gm.each do |email|
  subject_line= email.subject
    if subject_line.match('CLEARED')
      email_body = email.multipart? ? (email.text_part ? email.text_part.body.decoded : nil) : email.body.decoded
      $incident=email_body[/.*lert ID: (.*?) /,1]
      puts $incident
      # email.delete!
    end
end
gmail.logout


# Check PagerDuty for Open Incidents
puts ("Checking PagerDuty for Incidents")

your_site_trigger_api="https://change_this.pagerduty.com/api/v1/incidents?fields=incident_number,status,incident_key&status=triggered,acknowledged"
c = Curl::Easy.http_post(your_site_trigger_api) do |curl|
      curl.headers['Content-Type'] = 'application/json'
      curl.headers['Authorization'] = 'Token token=CHANGE_THIS'
      curl.encoding = ''
      curl.perform

string = curl.body_str
parsed = JSON.parse(string)


# Match Alert ID to incident_key, then return incident_key
puts ("Matching Alert ID to corresponding Incident Key")
puts ("Incident Key:")

# Using fixed_incident to test a known positive
$fixed_incident = 'change_this'

$i = "0"
$n = parsed['incidents'].length

def find_mine(one_incident)
        raw = one_incident['incident_key']
        re1='((?:[a-z][a-z]*[0-9]+[a-z0-9]*))'
        re=(re1)
        m=Regexp.new(re,Regexp::IGNORECASE);
        if m.match(raw)
            alphanum1=m.match(raw)[1];
            key = "" << alphanum1 << "" << "\n"
            if  alphanum1 == $incident
                $number = one_incident['incident_key']
                puts $number
            end
        end
end

for $i in (0..$n-1)
        find_mine(parsed['incidents'][$i])
end
end

# Connect to PagerDuty again and mark the Incident as
# Resolved using the incident_key found above
puts ("Marking the Incident as Resolved")

service_key="change_this"
pd = Curl.put("https://events.pagerduty.com/generic/2010-04-15/create_event.json") do |pd|
      pd.headers['Content-Type'] = 'application/json'
      pd.put_data = '[{"service_key":service_key,"incident_key":"' + $fixed_incident + '","event_type":"resolve"}]'

end

puts pd.body_str

puts ("Thanks for playing")
exit