feat: add deployment solution to digital ocean app platform

.github/workflows/release-docker.yml

@@ -32,3 +32,15 @@ jobs:
           pass: ${{ secrets.DOCKER_PASSWORD }}
           slug: asyncapi/server-api
           description: Server API providing official AsyncAPI tools
+
+  deploy-app:
+    name: Deploy to DigitalOcean App
+    needs: publish-docker
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to DigitalOcean App
+        uses: digitalocean/[email protected]
+        with:
+          app_name: "server-api"
+          token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
+          images: '[{"name":"asyncapi-server-api","image":{"registry_type":"DOCKER_HUB","registry":"asyncapi","repository":"server-api","tag":"latest"}}]'

deployments/apps/.gitignore

@@ -0,0 +1,3 @@
+.terraform
+terraform.tfstate
+terraform.tfstate.backup

deployments/apps/main.tf

@@ -0,0 +1,82 @@
+terraform {
+  required_version = ">= 1.0.0"
+
+  required_providers {
+    digitalocean = {
+      source  = "digitalocean/digitalocean"
+      version = ">= 2.0.0"
+    }
+  }
+}
+
+provider "digitalocean" {}
+
+resource "digitalocean_app" "server-api" {
+  spec {
+    name = "server-api"
+    region = "blr"
+
+    domain {
+      name = "api.asyncapi.com"
+      type = "PRIMARY"
+    }
+
+    ingress {
+      rule {
+        component {
+          name = "asyncapi-server-api"
+        }
+        match {
+          path {
+            prefix = "/"
+          }
+        }
+        cors {
+          allow_origins {
+           exact = "*"
+          }
+          allow_methods = ["GET", "POST", "PUT", "DELETE", "OPTIONS"]
+          allow_headers = ["*"]
+        }
+      }
+    }
+
+    service {
+      name = "asyncapi-server-api"
+      http_port = 80
+      health_check {
+        http_path = "/v1/help/validate"
+        port = 80
+      }
+      env {
+        key = "PORT"
+        value = "80"
+      }
+
+      image {
+        registry_type = "DOCKER_HUB"
+        registry = "asyncapi"
+        repository = "server-api"
+        tag = "latest"
+      }
+
+      instance_count = 1
+      instance_size_slug = "basic-xs" // $10/month
+
+      alert {
+        rule = "CPU_UTILIZATION"
+        value = 80
+        operator = "GREATER_THAN"
+        window = "TEN_MINUTES"
+      }
+    }
+
+    alert {
+      rule = "DEPLOYMENT_FAILED"
+    }
+  }
+}
+
+output "live_url" {
+  value = digitalocean_app.server-api.default_ingress
+}