Adding constraints for deployment env in docker.

Testing out gitea actions

.gitea/workflows/demo.yaml

@@ -0,0 +1,19 @@
+name: Gitea Actions Demo
+run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
+on: [push]
+
+jobs:
+  Explore-Gitea-Actions:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
+      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
+      - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
+      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
+      - name: List files in the repository
+        run: |
+          ls ${{ gitea.workspace }}
+      - run: echo "🍏 This job's status is ${{ job.status }}."

compose.yaml

@@ -1,13 +1,21 @@
+# Example compose file, in your real compose file replace the whoami service with your service
+
 version: '3.4'
 services:
   lb:
     build: .
     environment:
-      - APP_PORT=2001
-      - APP_NAME=whoami
+      - APP_NAME=whoami # The name of the service to load balance
+      - APP_PORT=2001 # The port of the service to load balance, default '80'
     ports:
-      - "8081:80"
+      - "80:80"
+    deploy:
+      placement:
+        constraints: [node.role == manager] # Required for swarm mode, lb should be on manager node
+    depends_on:
+      - whoami # The name of your service to load balance
 
+  # Using whoami as an example, replace with your actual service to load balance
   whoami:
     image: traefik/whoami
     command: