How OREL Cloud ELB works

Using the OREL Cloud Elastic Load Balancer (ELB) involves creating a public endpoint that distributes incoming traffic across multiple servers (or Elastic Cloud Servers/ECSs). This prevents system overloads, automatically reroutes requests if a server becomes unhealthy, and ensures application scalability. Setting up and working with the OREL Cloud ELB generally follows these steps: 1. Provision Your Servers (ECSs) Before setting up the load balancer, ensure you have your backend instances ready: Launch your Elastic Cloud Servers (ECS) on the platform. Deploy your application or workload onto these servers. Ensure your security groups and firewalls allow traffic on the specific ports your application uses (e.g., Port 80 for HTTP). 2. Create and Configure the Load Balancer Access the Console: Log into your OREL Cloud dashboard and navigate to the Elastic Load Balancing (ELB) section. Select Parameters: Choose whether you need an Internet-facing ELB (to route external user traffic) or an Internal ELB (for backend private networks). Network Mapping: Select your Virtual Private Cloud (VPC) and the specific subnets where your target servers are launched. 3. Add Listeners A listener checks for connection requests from clients: Configure the frontend protocol and port (e.g., HTTP on Port 80, or HTTPS on Port 443). Configure the backend port that the load balancer uses to communicate with your ECS instances. 4. Configure Target Groups / Health Checks Define a group of backend instances (the ECSs you created in Step 1) to receive the traffic. Health Checks: Set parameters that define how the ELB monitors your servers (e.g., pinging a specific URL path, checking port responsiveness). If a server fails these health checks, the ELB automatically stops sending traffic to it. 5. Bind an IP and Test Bind an Elastic IP (EIP) to the load balancer so it can be accessed over the internet. Access the load balancer's domain name or IP address to ensure traffic is successfully balanced across your server pool.