Remove ASG notifier

PRX · Jun 3, 2024 · e98bbcd · e98bbcd
1 parent a7ae9a9
commit e98bbcd
Show file tree

Hide file tree

Showing 2 changed files with 0 additions and 176 deletions.
diff --git a/spire/templates/root.yml b/spire/templates/root.yml
@@ -398,7 +398,6 @@ Resources:
     Properties:
       Parameters:
         EnvironmentType: !Ref EnvironmentType
-        EnvironmentTypeAbbreviation: !Ref EnvironmentTypeAbbreviation
         RegionMode: !FindInMap [RegionModeMap, !Ref "AWS::Region", !Ref EnvironmentType]
         RootStackName: !Ref AWS::StackName
         RootStackId: !Ref AWS::StackName

diff --git a/spire/templates/shared-ecs/asg.yml b/spire/templates/shared-ecs/asg.yml
@@ -26,7 +26,6 @@ Parameters:
     Default: /aws/service/ecs/optimized-ami/amazon-linux-2/amzn2-ami-ecs-hvm-2.0.20240312-x86_64-ebs/image_id
   ########
   EnvironmentType: { Type: String }
-  EnvironmentTypeAbbreviation: { Type: String }
   RegionMode: { Type: String }
   RootStackName: { Type: String }
   RootStackId: { Type: String }
@@ -448,180 +447,6 @@ Resources:
           Weight: 1
           CapacityProvider: !Ref DefaultCapacityProvider
 
-  EventsNotificationsFunction:
-    Type: AWS::Serverless::Function
-    Properties:
-      Description: !Sub >-
-        Handles auto scaling events from the ${EnvironmentType} shared ASG
-      Environment:
-        Variables:
-          SLACK_MESSAGE_RELAY_TOPIC_ARN: !Ref SlackMessageRelaySnsTopicArn
-      Events:
-        AsgEventsRule:
-          # https://docs.aws.amazon.com/autoscaling/ec2/userguide/cloud-watch-events.html
-          Type: EventBridgeRule
-          Properties:
-            Pattern:
-              detail:
-                AutoScalingGroupName:
-                  - !Ref Asg
-              source:
-                - aws.autoscaling
-      Handler: index.handler
-      InlineCode: |
-        const { SNS } = require('@aws-sdk/client-sns');
-
-        const sns = new SNS({
-          apiVersion: '2010-03-31',
-          region: process.env.SLACK_MESSAGE_RELAY_TOPIC_ARN.split(':')[3],
-        });
-
-        const regions = {
-          'us-east-2': 'Ohio',
-          'us-east-1': 'N. Virginia',
-          'us-west-1': 'N. California',
-          'us-west-2': 'Oregon',
-          'af-south-1': 'Cape Town',
-          'ap-east-1': 'Hong Kong',
-          'ap-south-1': 'Mumbai',
-          'ap-northeast-3': 'Osaka',
-          'ap-northeast-2': 'Seoul',
-          'ap-southeast-1': 'Singapore',
-          'ap-southeast-2': 'Sydney',
-          'ap-northeast-1': 'Tokyo',
-          'ca-central-1': 'Central',
-          'eu-central-1': 'Frankfurt',
-          'eu-west-1': 'Ireland',
-          'eu-west-2': 'London',
-          'eu-south-1': 'Milan',
-          'eu-west-3': 'Paris',
-          'eu-north-1': 'Stockholm',
-          'me-south-1': 'Bahrain',
-          'sa-east-1': 'São Paulo',
-        };
-
-        exports.handler = async (event) => {
-          console.log(JSON.stringify(event));
-
-          const asgUrl = `https://console.aws.amazon.com/ec2autoscaling/home?region=${event.region}#/details/${event.detail.AutoScalingGroupName}?view=details`;
-          const instanceUrl = `https://console.aws.amazon.com/ec2/v2/home?region=${event.region}#InstanceDetails:instanceId=${event.detail.EC2InstanceId}`;
-
-          let environment = '????';
-          if (event.detail.AutoScalingGroupName.includes('prod')) {
-            environment = 'prod';
-          } else if (event.detail.AutoScalingGroupName.includes('stag')) {
-            environment = 'stag';
-          }
-
-          const lines = [];
-          let inOut = '';
-
-          let az = '';
-          if (event?.detail?.Details?.['Availability Zone']) {
-            az = ` in \`${event.detail.Details['Availability Zone']}\``;
-          }
-
-          lines.push(`*Instance:* <${instanceUrl}|${event.detail.EC2InstanceId}>${az}`);
-
-          if (/capacity from [0-9]+ to [0-9]+/.test(event.detail.Cause)) {
-            const m = event.detail.Cause.match(/capacity from ([0-9]+) to ([0-9]+)/);
-            lines.push(`*Capacity change:* \`${m[1]}\` to \`${m[2]}\``);
-
-            inOut = +m[1] > +m[2] ? ' IN' : ' OUT';
-          } else if (/an instance was taken out of service in response to a user health-check/.test(event.detail.Cause)) {
-            lines.push('Taken out of service in response to a user health-check.');
-          } else if (/was taken out of service in response to a user request/.test(event.detail.Cause)) {
-            lines.push('Taken out of service in response to a user request.');
-          }
-
-          await sns.publish({
-            TargetArn: process.env.SLACK_MESSAGE_RELAY_TOPIC_ARN,
-            Message: JSON.stringify({
-              channel: 'G2QHC11SM', // #ops-debug
-              username: 'AWS Auto Scaling',
-              icon_emoji: ':ops-autoscaling:',
-              attachments: [{
-                color: "#53adfb",
-                fallback: `SCALE${inOut} | ${regions[event.region]} » ASG &lt;${environment}&gt; ${event['detail-type'].toUpperCase()}`,
-                blocks: [
-                  {
-                    type: "section",
-                    text: {
-                      type: "mrkdwn",
-                      text: `*<${asgUrl}|SCALE${inOut} | ${regions[event.region]} » ASG &lt;${environment}&gt; ${event['detail-type'].toUpperCase()}>*`,
-                    }
-                  }, {
-                    type: "section",
-                    text: {
-                      type: "mrkdwn",
-                      text: lines.join('\n'),
-                    }
-                  }
-                ]
-              }]
-            }),
-          });
-        };
-      MemorySize: 128
-      Policies:
-        - Statement:
-            - Action: sns:Publish
-              Effect: Allow
-              Resource: !Ref SlackMessageRelaySnsTopicArn
-          Version: "2012-10-17"
-      Runtime: nodejs18.x
-      Tags:
-        prx:meta:tagging-version: "2021-04-07"
-        prx:cloudformation:stack-name: !Ref AWS::StackName
-        prx:cloudformation:stack-id: !Ref AWS::StackId
-        prx:cloudformation:root-stack-name: !Ref RootStackName
-        prx:cloudformation:root-stack-id: !Ref RootStackId
-        prx:ops:environment: !Ref EnvironmentType
-        prx:dev:application: Common
-      Timeout: 10
-  EventsNotificationsFunctionLogGroup:
-    Type: AWS::Logs::LogGroup
-    DeletionPolicy: Delete
-    UpdateReplacePolicy: Delete
-    Properties:
-      LogGroupName: !Sub /aws/lambda/${EventsNotificationsFunction}
-      RetentionInDays: 7
-      Tags:
-        - { Key: prx:meta:tagging-version, Value: "2021-04-07" }
-        - { Key: prx:cloudformation:stack-name, Value: !Ref AWS::StackName }
-        - { Key: prx:cloudformation:stack-id, Value: !Ref AWS::StackId }
-        - { Key: prx:cloudformation:root-stack-name, Value: !Ref RootStackName }
-        - { Key: prx:cloudformation:root-stack-id, Value: !Ref RootStackId }
-        - { Key: prx:ops:environment, Value: !Ref EnvironmentType }
-        - { Key: prx:dev:application, Value: Common }
-  EventsNotificationsFunctionErrorAlarm:
-    Type: AWS::CloudWatch::Alarm
-    Properties:
-      AlarmName: !Sub WARN [Infrastructure] ASG Events Notifications <${EnvironmentTypeAbbreviation}> FUNCTION ERRORS (${RootStackName})
-      AlarmDescription: !Sub >-
-        The events notification function for the ${EnvironmentType} auto
-        scaling group has experienced some errors, so notifications may not
-        be getting sent to Slack.
-      ComparisonOperator: GreaterThanThreshold
-      Dimensions:
-        - Name: FunctionName
-          Value: !Ref EventsNotificationsFunction
-      EvaluationPeriods: 1
-      MetricName: Errors
-      Namespace: AWS/Lambda
-      Period: 60
-      Statistic: Sum
-      Tags:
-        - { Key: prx:meta:tagging-version, Value: "2021-04-07" }
-        - { Key: prx:cloudformation:stack-name, Value: !Ref AWS::StackName }
-        - { Key: prx:cloudformation:stack-id, Value: !Ref AWS::StackId }
-        - { Key: prx:cloudformation:root-stack-name, Value: !Ref RootStackName }
-        - { Key: prx:cloudformation:root-stack-id, Value: !Ref RootStackId }
-        - { Key: prx:ops:environment, Value: !Ref EnvironmentType }
-        - { Key: prx:dev:application, Value: Infrastructure }
-      Threshold: 0
-      TreatMissingData: notBreaching
-
 Outputs:
   AsgName:
     Value: !Ref Asg