https://github.com/leoguilen/go-app-with-keda
This project demonstrates how to build and deploy a Go application in a Kubernetes cluster and set up event-driven autoscaling using KEDA (Kubernetes Event-Driven Autoscaling).
https://github.com/leoguilen/go-app-with-keda
go keda kubernetes
Last synced: about 1 month ago
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This project demonstrates how to build and deploy a Go application in a Kubernetes cluster and set up event-driven autoscaling using KEDA (Kubernetes Event-Driven Autoscaling).
- Host: GitHub
- URL: https://github.com/leoguilen/go-app-with-keda
- Owner: leoguilen
- Created: 2024-09-06T00:29:43.000Z (9 months ago)
- Default Branch: main
- Last Pushed: 2024-09-08T03:19:39.000Z (8 months ago)
- Last Synced: 2025-02-18T17:02:26.605Z (3 months ago)
- Topics: go, keda, kubernetes
- Language: Go
- Homepage:
- Size: 10.7 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Go App with Kubernetes and KEDA
This project demonstrates how to build and deploy a Go application in a Kubernetes cluster and set up event-driven autoscaling using KEDA (Kubernetes Event-Driven Autoscaling).
## Prerequisites
Before getting started, you'll need:
- [VSCode](https://code.visualstudio.com/) installed with [Dev Containers](https://containers.dev/) extension
- [Docker](https://www.docker.com/get-started) installed
## Environment Setup
1. **Clone this repository:**
```bash
git clone https://github.com/leoguilen/go-app-with-keda.git
cd go-app-with-keda
```
2. **Open project in dev container:**
In VSCode, open command tab and execute `Dev Container: Reopen in Container`.
3. **Setup local k8s cluster:**
```bash
k3d cluster create --registry-create k3d-registry:0.0.0.0:5000
echo '127.0.0.1 k3d-registry' | sudo tee -a /etc/hosts
kubectl apply --server-side -f https://github.com/kedacore/keda/releases/download/v2.15.1/keda-2.15.1.yaml
```
## Building the Application
1. **Build and Push the Docker images:**
```bash
docker buildx build --build-arg="APP_NAME=consumer" -t k3d-registry:5000/consumer --push .
docker buildx build --build-arg="APP_NAME=producer" -t k3d-registry:5000/producer --push .
```
## Deployment to Kubernetes
1. **Apply deployments for the applications:**
```bash
kubectl apply -f deploy/k8s/ -R
```
2. **Verify the deployment:**
```bash
kubectl get pod
```
## Testing Autoscaling
To test autoscaling, generate events that cause changes in the configured metric. Check logs and the number of replicas to ensure KEDA is scaling the application as expected.
You can use the helper script to generate orders:
```bash
./scripts/generate_orders.sh
```