deploy balancer to prod and enable balancing on monolith (#1538)

.github/workflows/main.yml

@@ -180,7 +180,7 @@ jobs:
         env:
           FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
 
-  deploy-fly-prod:
+  deploy-fly-prod-monolith:
     runs-on: ubuntu-latest
     name: Deploy Monolith on fly.io (prod)
     if: github.event_name == 'push' && github.ref == 'refs/heads/master'
@@ -191,3 +191,15 @@ jobs:
       - run: flyctl deploy --config deploy/fly.prod.monolith.toml --remote-only
         env:
           FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
+
+  deploy-fly-prod-balancer:
+    runs-on: ubuntu-latest
+    name: Deploy Balancer on fly.io (prod)
+    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+    needs: [test, lint, deploy-fly-prod-monolith]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: superfly/flyctl-actions/setup-flyctl@master
+      - run: flyctl deploy --config deploy/fly.prod.balancer.toml --remote-only
+        env:
+          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}

deploy/fly.prod.balancer.toml

@@ -0,0 +1,29 @@
+app = "ott-balancer-prod"
+primary_region = "ewr"
+
+[build]
+dockerfile = "balancer.Dockerfile"
+
+[build.args]
+DEPLOY_TARGET = "ott-balancer-prod"
+
+[deploy]
+strategy = "canary"
+
+[http_service]
+internal_port = 8081
+force_https = true
+# auto_stop_machines = true
+# auto_start_machines = true
+min_machines_running = 1
+
+[[http_service.checks]]
+grace_period = "10s"
+interval = "30s"
+method = "GET"
+timeout = "10s"
+path = "/api/status"
+
+[metrics]
+port = 8081
+path = "/api/status/metrics"

deploy/ott-balancer-prod.toml

@@ -0,0 +1,4 @@
+[discovery]
+method = "fly"
+fly_app = "ott-prod"
+service_port = 3002

deploy/ott-prod.toml

@@ -7,3 +7,6 @@ level = "info"
 
 [mail]
 enabled = true
+
+[balancing]
+enabled = true