Update to handle the MAC need to log to more than one slack channel based on message contents.

Author: chander

README.md

@@ -1,8 +1,10 @@
 [![](https://img.shields.io/badge/Available-serverless%20app%20repository-blue.svg)](https://serverlessrepo.aws.amazon.com/#/applications/arn:aws:serverlessrepo:us-east-1:289559741701:applications~lambda-to-slack)
 
-# lambda-to-slack
+# macnoms-lambda-to-slack
 
-This serverless app posts messages to Slack.
+This serverless app posts messages to Slack.  It uses a set of contains strings to determine which slack channel/webhook 
+should be used for the messages.  This is important because only a single subscriber is allowed for each cloudwatch
+log; so logging to more than a single slack channel with a single lambda-to-slack (traditional) lambda was not possible.
 
 ## App Architecture
 
@@ -32,6 +34,10 @@ To get a webhook URL for this application:
 
 1. `SlackUrl` (required) - Webhook URL for integration with Slack
 1. `LogLevel` (optional) - Log level for Lambda function logging, e.g., ERROR, INFO, DEBUG, etc. Default: INFO
+1. `SlackUrl1` (required) - Webhook URL for integration with Slack (if messages match ContainsString1)
+1. `ContainsString1` (required) - A string that, if present in the message, dictates that the message should be logged to SlackUrl2
+1. `SlackUrl2` (required) - Webhook URL for integration with Slack (if messages match ContainsString1)
+1. `ContainsString2` (required) - A string that, if present in the message, dictates that the message should be logged to SlackUrl2
 
 ## App Outputs
 

src/config.py

@@ -4,3 +4,7 @@
 
 LOG_LEVEL = os.getenv('LOG_LEVEL', 'INFO')
 SLACK_URL = os.getenv('SLACK_URL')
+SLACK_URL1 = os.getenv('SLACK_URL1')
+SLACK_URL2 = os.getenv('SLACK_URL2')
+CONTAINS_STRING1 = os.getenv('CONTAINS_STRING1')
+CONTAINS_STRING2 = os.getenv('CONTAINS_STRING2')

src/handlers.py

@@ -19,4 +19,9 @@ def post_to_slack(event, context):
         raise InputError(event, "Input needs to be a json array")
 
     for message in event:
-        slack.post_message(config.SLACK_URL, message)
+        if config.CONTAINS_STRING1 in message:
+            slack.post_message(config.SLACK_URL1, message)
+        elif config.CONTAINS_STRING2 in message:
+            slack.post_message(config.SLACK_URL2, message)
+        else:
+            slack.post_message(config.SLACK_URL, message)

template.yml

@@ -3,29 +3,40 @@ Transform: AWS::Serverless-2016-10-31
 
 Metadata:
   AWS::ServerlessRepo::Application:
-    Name: lambda-to-slack
+    Name: macnoms-lambda-to-slack
     Description: Posts messages to a Slack channel.
     Author: Keeton Hodgson
     SpdxLicenseId: MIT
     # paths are relative to .aws-sam/build directory
     LicenseUrl: ../../LICENSE
     ReadmeUrl: ../../README.md
     Labels: [serverless,slack,lambda]
-    HomePageUrl: https://github.com/keetonian/lambda-to-slack
+    HomePageUrl: https://github.com/chander/macnoms-lambda-to-slack
     # Update the semantic version and run sam publish to publish a new version of your app
-    SemanticVersion: 0.0.1
+    SemanticVersion: 0.0.2
     # best practice is to use git tags for each release and link to the version tag as your source code URL
-    SourceCodeUrl: https://github.com/keetonian/lambda-to-slack/tree/0.0.1
+    SourceCodeUrl: https://github.com/chander/macnoms-lambda-to-slack/tree/0.0.2
 
 Parameters:
   LogLevel:
     Type: String
     Description: Log level for Lambda function logging, e.g., ERROR, INFO, DEBUG, etc
     Default: INFO
+  SlackUrl1:
+    Description: Webhook URL for integration with Slack (using ContainsString1)
+    Type: String
+  ContainsString1:
+    Description: A String that must appear in the message in order for SlackUrl1 to be used.
+  SlackUrl2:
+    Description: Webhook URL for integration with Slack (using ContainsString2)
+    Type: String
+  ContainsString2:
+      Description: A String that must appear in the message in order for SlackUrl2 to be used.
   SlackUrl:
-    Description: Webhook URL for integration with Slack
+    Description: Webhook URL for integration with Slack (for messages not matched yet)
     Type: String
 
+
 Globals:
   Function:
     Runtime: python3.7