feat: switch from serverless -> SAM

.gitignore

@@ -1,6 +1,5 @@
 # generated items
 packaged-template.yaml
-sam-template.yaml
 coverage
 yarn-error.log
 

deploy-to-s3.sh

@@ -1,6 +1,10 @@
-rm -f ./packaged-template.yaml ./sam-template.yaml
+rm -f ./packaged-template.yaml
 
-sls sam export --output ./sam-template.yaml
+cp package.json src/package.json
+cp yarn.lock src/yarn.lock
+cd src
+yarn install --production --frozen-lockfile
+cd ..
 
 PACKAGE_VERSION=$(node -p -e "require('./package.json').version")
 
@@ -20,4 +24,4 @@ aws cloudformation package \
 aws s3 cp ./packaged-template.yaml "s3://sammarks-cf-templates-us-east-2/scheduled-tasks/$PACKAGE_VERSION/template.yaml"
 aws s3 cp ./packaged-template.yaml "s3://sammarks-cf-templates-us-east-2/scheduled-tasks/template.yaml"
 
-rm -rf ./packaged-template.yaml ./sam-template.yaml
+rm -rf ./src/node_modules ./src/package.json ./src/yarn.lock ./packaged-template.yaml

package.json

@@ -28,8 +28,6 @@
     "jest": "^26.1.0",
     "jest-junit": "^11.0.1",
     "lolex": "^6.0.0",
-    "serverless": "^1.75.1",
-    "serverless-sam": "^0.2.0",
     "standard-version": "^8.0.2"
   },
   "resolutions": {

sam-template.yaml

@@ -0,0 +1,117 @@
+AWSTemplateFormatVersion: '2010-09-09'
+Transform: 'AWS::Serverless-2016-10-31'
+Description: 'An AWS CloudFormation template for running scheduled tasks.'
+Resources:
+  ingestTopic:
+    Type: 'AWS::SNS::Topic'
+    Properties: {}
+  tasksTable:
+    Type: 'AWS::DynamoDB::Table'
+    Properties:
+      KeySchema:
+        - AttributeName: taskId
+          KeyType: HASH
+      AttributeDefinitions:
+        - AttributeName: taskId
+          AttributeType: S
+      ProvisionedThroughput:
+        ReadCapacityUnits:
+          Ref: ReadCapacityUnits
+        WriteCapacityUnits:
+          Ref: WriteCapacityUnits
+  IngestFunction:
+    Type: 'AWS::Serverless::Function'
+    Properties:
+      Handler: src/ingest.handler
+      Runtime: nodejs10.x
+      CodeUri: src
+      MemorySize: 128
+      Timeout: 3
+      Policies:
+        - Version: '2012-10-17'
+          Statement:
+            - Effect: Allow
+              Action:
+                - 'sns:Publish'
+              Resource:
+                Ref: DestinationArns
+            - Effect: Allow
+              Action:
+                - 'dynamodb:UpdateItem'
+                - 'dynamodb:Scan'
+                - 'dynamodb:DeleteItem'
+              Resource:
+                'Fn::GetAtt':
+                  - tasksTable
+                  - Arn
+      Environment:
+        Variables:
+          TASKS_TABLE:
+            Ref: tasksTable
+      Events:
+        Event1:
+          Type: SNS
+          Properties:
+            Topic:
+              Ref: ingestTopic
+  ScheduleFunction:
+    Type: 'AWS::Serverless::Function'
+    Properties:
+      Handler: src/schedule.handler
+      Runtime: nodejs10.x
+      CodeUri: src
+      MemorySize: 128
+      Timeout: 60
+      Policies:
+        - Version: '2012-10-17'
+          Statement:
+            - Effect: Allow
+              Action:
+                - 'sns:Publish'
+              Resource:
+                Ref: DestinationArns
+            - Effect: Allow
+              Action:
+                - 'dynamodb:UpdateItem'
+                - 'dynamodb:Scan'
+                - 'dynamodb:DeleteItem'
+              Resource:
+                'Fn::GetAtt':
+                  - tasksTable
+                  - Arn
+      Environment:
+        Variables:
+          TASKS_TABLE:
+            Ref: tasksTable
+      Events:
+        Event1:
+          Type: Schedule
+          Properties:
+            Schedule:
+              Ref: PollingSchedule
+Outputs:
+  IngestSNSTopicArn:
+    Description: The ARN of the Ingest SNS topic
+    Value:
+      Ref: ingestTopic
+Parameters:
+  PollingSchedule:
+    Default: rate(5 minutes)
+    Type: String
+    Description: >-
+      The CloudWatch ScheduleExpression defining the interval the polling Lambda
+      runs at.
+  ReadCapacityUnits:
+    Default: 1
+    Type: Number
+    Description: The read capacity units for the Scheduled Tasks DynamoDB table.
+  WriteCapacityUnits:
+    Default: 1
+    Type: Number
+    Description: The write capacity units for the Scheduled Tasks DynamoDB table.
+  DestinationArns:
+    Default: ''
+    Type: CommaDelimitedList
+    Description: >-
+      A comma-separated list of possible destination SNS topic ARNs for
+      permissioning the polling Lambda.