AWS Lambda function to send notifications from CodeDeploy to Slack

notify_slack.py

from __future__ import print_function
import json, urllib, urllib2

def send_slack(message):
    """
    Send Slack Message to Deployments Channel
    """
    slack_token = ''
    slack_channel = ''
    slack_user = 'Deployment Bot'
    slack_url = 'https://slack.com/api/chat.postMessage'

    message_data = json.loads(message)

    fields = []
    fields.append({
        'title': 'Application',
        'value': message_data['applicationName'],
        'short': 'true',
    })
    fields.append({
        'title': 'Group',
        'value': message_data['deploymentGroupName'],
        'short': 'true'
    })
    fields.append({
        'title': 'Deployment ID',
        'value': message_data['deploymentId'],
        'short': 'true'
    })

    new_message = {
        'text': '',
        'color': 'good',
        'fields': fields
    }

    if message_data['status'] == "CREATED":
        new_message['color'] = 'warning'
        new_message['text'] = 'Started deployment'

    elif message_data['status'] == "SUCCEEDED":
        new_message['text'] = 'Deployment successful'

    elif message_data['status'] == "FAILED":
        new_message['color'] = 'danger'
        new_message['text'] = 'Deployment failed'

    slack_message = [new_message]

    payload = {
        "token": slack_token,
        "channel": slack_channel,
        "username": slack_user,
        "attachments": json.dumps(slack_message)
    }

    query_string = urllib.urlencode(payload)
    url = slack_url + '?' + query_string
    response = urllib2.urlopen(url)

def lambda_handler(event, context):
    message = event['Records'][0]['Sns']['Message']
    send_slack(message)
    return message