[DCMAW-8782] Configure async backend api to send metrics to Dynatrace (…

…#281)

​DCMAW-8782

### What changed
Update backend-api template.yaml to allow lambda functions to send
metrics to Dynatrace.
Update test for new global environment variables

### Why did it change
We are creating Dynatrace dashboards for the async resources.

Stack successfully deployed:


![image](https://github.com/user-attachments/assets/a888e483-e434-4be4-adca-661578e46cb7)


Tests successfully run:

![image](https://github.com/user-attachments/assets/ea8da2ae-dfa8-40d7-8d1d-5ee439e5106d)


![image](https://github.com/user-attachments/assets/0962f3f2-8a27-42c2-ad10-ee0a3861e9ac)

Dynatrace gathering metrics:

![image](https://github.com/user-attachments/assets/baebd7c8-a5c8-43f1-8668-f0a15071f6a2)

backend-api/template.yaml

@@ -32,6 +32,18 @@ Parameters:
     Default: none
 
 Mappings:
+  EnvironmentConfiguration:
+    dev:
+      dynatraceSecretArn: arn:aws:secretsmanager:eu-west-2:216552277552:secret:DynatraceNonProductionVariables
+    build:
+      dynatraceSecretArn: arn:aws:secretsmanager:eu-west-2:216552277552:secret:DynatraceNonProductionVariables
+    staging:
+      dynatraceSecretArn: arn:aws:secretsmanager:eu-west-2:216552277552:secret:DynatraceNonProductionVariables
+    integration:
+      dynatraceSecretArn: arn:aws:secretsmanager:eu-west-2:216552277552:secret:DynatraceNonProductionVariables
+    production:
+      dynatraceSecretArn: arn:aws:secretsmanager:eu-west-2:216552277552:secret:DynatraceProductionVariables
+
   PrivateApigw:
     dev:
       ApiBurstLimit: 10
@@ -210,6 +222,27 @@ Globals:
         # ISSUER should be updated with DNS once available
         ISSUER: mockIssuer
         SESSION_TABLE_NAME: !Ref SessionsTable
+        AWS_LAMBDA_EXEC_WRAPPER: /opt/dynatrace
+        DT_CONNECTION_AUTH_TOKEN: !Sub
+          - '{{resolve:secretsmanager:${SecretArn}:SecretString:DT_CONNECTION_AUTH_TOKEN}}'
+          - SecretArn: !FindInMap [ EnvironmentConfiguration, !Ref Environment, dynatraceSecretArn ]
+        DT_CONNECTION_BASE_URL: !Sub
+          - '{{resolve:secretsmanager:${SecretArn}:SecretString:DT_CONNECTION_BASE_URL}}'
+          - SecretArn: !FindInMap [ EnvironmentConfiguration, !Ref Environment, dynatraceSecretArn ]
+        DT_CLUSTER_ID: !Sub
+          - '{{resolve:secretsmanager:${SecretArn}:SecretString:DT_CLUSTER_ID}}'
+          - SecretArn: !FindInMap [ EnvironmentConfiguration, !Ref Environment, dynatraceSecretArn ]
+        DT_LOG_COLLECTION_AUTH_TOKEN: !Sub
+          - '{{resolve:secretsmanager:${SecretArn}:SecretString:DT_LOG_COLLECTION_AUTH_TOKEN}}'
+          - SecretArn: !FindInMap [ EnvironmentConfiguration, !Ref Environment, dynatraceSecretArn ]
+        DT_TENANT: !Sub
+          - '{{resolve:secretsmanager:${SecretArn}:SecretString:DT_TENANT}}'
+          - SecretArn: !FindInMap [ EnvironmentConfiguration, !Ref Environment, dynatraceSecretArn ]
+        DT_OPEN_TELEMETRY_ENABLE_INTEGRATION: "true"
+    Layers: 
+      - !Sub
+        - '{{resolve:secretsmanager:${SecretArn}:SecretString:NODEJS_LAYER}}'
+        - SecretArn: !FindInMap [ EnvironmentConfiguration, !Ref Environment, dynatraceSecretArn ]
 
 Resources:
 

backend-api/tests/infra-tests/application.test.ts

@@ -407,6 +407,13 @@ describe("Backend application infrastructure", () => {
           "ISSUER",
           "TXMA_SQS",
           "SESSION_TABLE_NAME",
+          "AWS_LAMBDA_EXEC_WRAPPER",
+          "DT_CONNECTION_AUTH_TOKEN",
+          "DT_CONNECTION_BASE_URL",
+          "DT_CLUSTER_ID",
+          "DT_LOG_COLLECTION_AUTH_TOKEN",
+          "DT_TENANT",
+          "DT_OPEN_TELEMETRY_ENABLE_INTEGRATION",
         ];
         const envVars =
           template.toJSON().Globals.Function.Environment.Variables;