Introduction
Looking for an easy way to deploy your .NET 8 API on AWS without managing servers? AWS Fargate is a serverless container service that lets you do just that — no need to set up EC2 instances or deal with Kubernetes!
In this guide, I’ll walk you through how to deploy a .NET 8 API using Docker on AWS Fargate in just 7 minutes. This is a step-by-step process, perfect for both beginners and experienced developers.
📌 Prefer a video tutorial? Watch my full YouTube guide here:
👉 How to Deploy .NET 8 API on AWS Fargate (7-Min Tutorial): Link
Why Use AWS Fargate for .NET APIs?
Here’s why AWS Fargate is one of the best ways to host a .NET 8 API:
✅ No Servers to Manage — AWS runs and scales everything for you.
✅ Pay Only for What You Use — No need to keep EC2 instances running. ✅ Auto-Scaling — Can handle sudden traffic spikes automatically.
✅ Easy Setup — Just upload your Docker image and go live!
Step-by-Step: Deploy .NET 8 API on AWS Fargate
Let’s go through the steps one by one.
Step 1: Create an ECS Cluster
AWS ECS (Elastic Container Service) needs a Cluster to organize and manage your containers.
📌 Think of a Cluster as a “workspace” where your API will run.
✅ Go to AWS ECS Console → Clusters → Create Cluster.
✅ Select Networking only (AWS Fargate) since we don’t need EC2.
✅ Name it something like dotnet8-cluster and click Create.
Your cluster is now ready! 🎉
Step 2: Create a Task Definition
A Task Definition is like a blueprint that tells AWS how to run your container.
✅ Go to ECS → Task Definitions → Create New Task Definition.
✅ Choose Fargate as the launch type.
✅ Give it a name (e.g., dotnet8-task).
✅ Add your Docker image URI from AWS ECR (Elastic Container Registry).
✅ Set Port Mapping to 80 (so users can access the API).
✅ Click Create.
Now AWS knows how to run your API! 🚀
Step 3: Create a Service
A Service ensures that your API keeps running all the time.
✅ Go to Clusters → Services → Create Service.
✅ Select your Task Definition (dotnet8-task).
✅ Set Number of Tasks = 1 (this means only one instance runs).
✅ Choose your VPC and subnets (AWS will suggest the right ones).
✅ Enable Public IP (so we can access the API from the internet).
✅ Click Create Service.
Now AWS will always keep your API running and restart it if needed!
Step 4: Configure Security Group (Allow Traffic to API)
By default, AWS blocks outside traffic, so we need to open port 80 to allow users to access the API.
✅ Go to EC2 → Security Groups.
✅ Find the group attached to your ECS Service.
✅ Click Inbound Rules → Edit → Add a new rule:
Type: HTTP
Port: 80
Source: Anywhere (0.0.0.0/0) (or your specific IP for security).
✅ Click Save Rules.
Now, the API can be accessed from anywhere! 🌍
Step 5: Test Your API
✅ Go to ECS → Clusters → Tasks, and find your running Task.
✅ Copy the Public IP Address and open it in a browser or Postman.
🎉 If everything is correct, your API should respond!
Troubleshooting Common Issues
❌ API is not reachable?
✅ Make sure port 80 is open in Security Groups.
✅ Double-check that your Docker image is correctly set up.
✅ Ensure that you enabled Public IP when creating the Service.
✅ Make sure your API is listening on port 80 inside the Docker container.
🎥 Watch the Full Tutorial on YouTube!
🚀 Want to see this setup in action? Watch the full step-by-step tutorial on YouTube:
👉 How to Deploy .NET 8 API on AWS Fargate (7-Min Tutorial)
💬 Have questions? Leave a comment on the video, and I’ll personally help you out!
If this article helped you, clap 👏 and share so more developers can learn how to deploy .NET 8 APIs on AWS Fargate easily! 🚀
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