Uml 3723 golang lambda to run in localstack (#3003)

* UML-3619 Convert incoming LPAs to combined format (repository layer)

* UML-3723 running event receiver in localstack with the use of make up

docker-compose.yml

@@ -257,6 +257,8 @@ services:
       REGION: eu-west-1
       AWS_ACCESS_KEY_ID: 'devkey'
       AWS_SECRET_ACCESS_KEY: 'secretdevkey'
+    depends_on:
+      - localstack
     volumes:
       - ./lambda-functions/upload-statistics/app:/function/app
       - ./lambda-functions/.aws-lambda-rie:/aws-lambda
@@ -267,19 +269,25 @@ services:
   # ---------------------------
   # Lambda for ingestion from MLPA
 
-  event-reciever-lambda:
-    container_name: event-reciever
+  event-receiver-lambda:
+    container_name: event-receiver
     build:
       context: ./lambda-functions/event-receiver
       dockerfile: Dockerfile
     environment:
+      AWS_LAMBDA_SERVER_PORT: '8080'
+      AWS_LAMBDA_RUNTIME_API: 'localhost:8080'
       ENVIRONMENT: local
       REGION: eu-west-1
       AWS_ACCESS_KEY_ID: 'devkey'
       AWS_SECRET_ACCESS_KEY: 'secretdevkey'
     volumes:
-      - ./lambda-functions/event-reciever/app:/function/app
+      - ./lambda-functions/event-receiver/app:/function/app
       - ./lambda-functions/.aws-lambda-rie:/aws-lambda
+    entrypoint:
+      - /aws-lambda/aws-lambda-rie
+    command:
+      - ./main
     ports:
       - 9008:8080
 

lambda-functions/event-receiver/Dockerfile

@@ -7,11 +7,12 @@ COPY go.mod go.sum ./
 RUN go mod download
 
 COPY app/ ./
-
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -o /go/bin/ingestion ./
 
 FROM scratch AS production
 
-COPY --from=base /go/bin/ingestion ingestion
+WORKDIR /var/task
+
+COPY --from=base /go/bin/ingestion ./main
 
-ENTRYPOINT ["./ingestion"]
+ENTRYPOINT ["./main"]

lambda-functions/event-receiver/README.md

@@ -0,0 +1,22 @@
+# Event Receiver
+
+The stats table is uploaded with historical stats from csv by a one time run script.
+
+This uploads to the stats table,  the Cloudwatch Metric Statistics about the use of the Use a Lasting Power of Attorney service.
+
+### Testing the lambda image locally
+
+As the lambda is built from an image, this can be spun up to test in dev environment.
+
+Bring up the lambda locally
+
+```
+make build
+```
+
+# To test lambda
+The curl follows a set command to invoke lambda functions as below
+
+```
+curl -XPOST "http://localhost:9008/2015-03-31/functions/function/invocations" -d '{}'
+```

lambda-functions/upload-statistics/README.md

@@ -13,7 +13,7 @@ By default the script uses a mock JSON response object instead of pulling from a
 Bring up the lambda locally
 
 ```
-make build_all
+make build
 ```
 
 # To test lambda