feat: ElasticLoadBalancingV2 TargetGroups, provisioned concurrency support (#26)

* Scoped package, version bump, publish job

* Add ELBV2 and existing target alias support

Co-authored-by: Matthew Elwell <[email protected]>

Author: khvn26

.github/workflows/publish-package.yml

@@ -0,0 +1,32 @@
+name: Publish Package to npmjs
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Tests & Publish
+
+    steps:
+      - name: Cloning repo
+        uses: actions/checkout@v2
+
+      - name: Setup Node.js
+        id: setup-node
+        uses: actions/setup-node@v2
+        with:
+          node-version-file: .nvmrc
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci --ignore-scripts
+
+      - name: Run tests
+        run: npm run test
+
+      - name: Publish package
+        run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/run-tests.yml

@@ -23,9 +23,8 @@ jobs:
         with:
           node-version-file: .nvmrc
           cache: npm
-      
+
       - name: Install dependencies
-        if: steps.setup-node.outputs.cache-hit != 'true'
         run: npm ci --ignore-scripts
 
       - name: Run tests

README.md

@@ -104,6 +104,7 @@ Some values are only available as top-level configurations.  They are:
 The plugin relies on the [AWS Lambda traffic shifting feature](https://docs.aws.amazon.com/lambda/latest/dg/lambda-traffic-shifting-using-aliases.html) to balance traffic between versions and [AWS CodeDeploy](https://docs.aws.amazon.com/lambda/latest/dg/automating-updates-to-serverless-apps.html) to automatically update its weight. It modifies the `CloudFormation` template generated by [Serverless](https://github.com/serverless/serverless), so that:
 
 1. It creates a Lambda function Alias for each function with deployment settings.
+  - For functions that already have a target alias due to provisioned concurrency or SnapStart configuration, the CodeDeploy-related settings are applied to it.
 2. It creates a CodeDeploy Application and adds a [CodeDeploy DeploymentGroup](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-codedeploy-deploymentgroup.html) per Lambda function, according to the specified settings.
 3. It modifies events that trigger Lambda functions, so that they invoke the newly created alias.
 
@@ -119,6 +120,7 @@ For now, the plugin only works with Lambda functions invoked by
 * CloudWatch Logs
 * IoT rules
 * AppSync DataSources
+* ElasticLoadBalancingV2 TargetGroups
 
 [More events](https://serverless.com/framework/docs/providers/aws/events/) will be added soon.