testing layer approach

.github/workflows/deploy_fastapi_backend.yml

@@ -44,6 +44,19 @@ jobs:
           aws-secret-access-key: ${{ secrets.PROD_AWS_SECRET_ACCESS_KEY }}
           aws-region: eu-west-2
 
+      - name: Install lambda specific dependencies, with bianries, in a separate dir
+        run: |
+          mkdir python
+          pip install -r backend/requirements/lambda.txt -t python
+
+      - name: Create Layer package
+        run: |
+          zip -r layer.zip python
+
+      - name: Deploy Layer to Lambda
+        run: |
+          aws lambda publish-layer-version --layer-name LambdaDependenciesLayer --zip-file fileb://layer.zip
+
       - name: Set domain name
         id: set_domain
         run: echo "::set-output name=domain::${{ secrets[format('{0}_DOMAIN_NAME', github.ref_name)] }}"

backend/requirements/base.txt

@@ -1,7 +1,6 @@
 anyio==3.7.1
 cffi==1.15.1
 click==8.1.3
-cryptography==37.0.4
 ecdsa==0.18.0
 exceptiongroup==1.1.2
 fastapi==0.99.1

backend/requirements/lambda.txt

@@ -0,0 +1 @@
+cryptography==37.0.4

backend/serverless.yml

@@ -4,7 +4,7 @@ provider:
   name: aws
   runtime: python3.10
   region: eu-west-2
-  architecture: arm64
+  architecture: x86_64
   environment:
     API_KEY: ${env:API_KEY}
     ENVIRONMENT: ${env:ENVIRONMENT}
@@ -12,7 +12,6 @@ provider:
     PLAN_TRIGGER_BUCKET: ${env:PLAN_TRIGGER_BUCKET}
     DOMAIN_NAME: ${env:DOMAIN_NAME}
 
-
 package:
   individually: true
   include:
@@ -37,13 +36,9 @@ custom:
 functions:
   app:
     handler: app.main.handler
+    layers:
+      - { Ref: LambdaDependenciesLayerLambdaLayer }
     events:
       - http:
           path: /{proxy+}
           method: ANY
-#    vpc:
-#      securityGroupIds:
-#        - sg-0abcd1234efgh5678
-#      subnetIds:
-#        - subnet-a1b2c3d4
-#        - subnet-e5f6g7h8