Add github action to deploy chat-langchain app to production. This ac…

…complishes a few things: (langchain-ai#133)

1. Deploy backend to fly
2. Build frontend in gha
3. Push frontend to vercel
4. Disable remote vercel build

Co-authored-by: infra <[email protected]>

.github/workflows/deploy-production.yaml

@@ -0,0 +1,34 @@
+name: Deploy Production
+on:
+  push:
+    branches:
+      - master
+jobs:
+  deploy-backend:
+    name: Deploy Backend to Fly
+    environment: Production
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: superfly/flyctl-actions/setup-flyctl@master
+      - run: flyctl deploy
+        env:
+          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
+  deploy-frontend:
+    name: Deploy Frontend to Vercel
+    runs-on: ubuntu-latest
+    environment: Production
+    needs: deploy-backend
+    env:
+      VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
+      VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Vercel CLI
+        run: npm install --global vercel@latest
+      - name: Pull Vercel Environment Information
+        run: vercel pull --yes --environment=production --token=${{ secrets.VERCEL_TOKEN }}
+      - name: Build Project Artifacts
+        run: vercel build --prod --token=${{ secrets.VERCEL_TOKEN }}
+      - name: Deploy Project Artifacts to Vercel
+        run: vercel deploy --prebuilt --prod --token=${{ secrets.VERCEL_TOKEN }}

vercel.json

@@ -0,0 +1,7 @@
+{
+  "git": {
+    "deploymentEnabled": {
+      "main": false
+    }
+  }
+}