Create GitHub action to publish npm package (#540)

.github/workflows/publish.yml

@@ -0,0 +1,48 @@
+name: Publish packages on NPM
+on:
+  release:
+    types: [created]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: "18.x"
+      - run: yarn config set npmAuthToken $NPM_PUBLISH_TOKEN
+        env:
+          NPM_PUBLISH_TOKEN: ${{ secrets.NPM_PUBLISH_TOKEN }}
+      - run: yarn
+      - run: yarn build
+      - run: yarn publish
+
+  notify:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Send success message to Slack
+        env:
+          SLACK_CHANNEL: "#serverless-onboarding-and-enablement-ops"
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+        if: success()
+        run: |
+          set -x
+          OPS_MESSAGE=":gh-check-passed: serverless-plugin-datadog NPM publish succeeded!"
+          curl -H "Content-type: application/json" -X POST "$SLACK_WEBHOOK" -d '{
+            "channel": "'"$SLACK_CHANNEL"'",
+            "text": "'"$OPS_MESSAGE"'"
+          }'
+
+      - name: Send failure message to Slack
+        env:
+          SLACK_CHANNEL: "#serverless-onboarding-and-enablement-ops"
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+        if: failure()
+        run: |
+          set -x
+          OPS_MESSAGE=":gh-check-passed: serverless-plugin-datadog NPM publish failed!
+          Please check GitHub Action log: https://github.com/DataDog/serverless-plugin-datadog/actions/workflows/publish.yml"
+          curl -H "Content-type: application/json" -X POST "$SLACK_WEBHOOK" -d '{
+            "channel": "'"$SLACK_CHANNEL"'",
+            "text": "'"$OPS_MESSAGE"'"

scripts/publish_prod.sh

@@ -68,9 +68,6 @@ if [ "$UPDATE_LAYERS" != "false" ]; then
     fi
 fi
 
-# Verify NPM access before updating layer arns (slow)
-yarn login
-
 if [ "$UPDATE_LAYERS" != "false" ]; then
     aws-vault exec sso-govcloud-us1-fed-engineering -- aws sts get-caller-identity
     aws-vault exec sso-prod-engineering -- aws sts get-caller-identity
@@ -92,17 +89,13 @@ echo
 echo "Bumping the version number and committing the changes"
 yarn version --new-version "$VERSION"
 
-echo
-echo 'Publishing to npm'
-yarn
 yarn build
-yarn publish --new-version "$VERSION"
 
 echo
 echo 'Pushing updates to GitHub'
 git push origin main
 git push origin "refs/tags/v$VERSION"
 
 echo
-echo "DONE! Please create a new release using the link below."
+echo "DONE! Please create a new release using the link below. It will trigger a GitHub action to publish to npm."
 echo "https://github.com/DataDog/serverless-plugin-datadog/releases/new?tag=v$VERSION&title=v$VERSION"