{"id":44,"date":"2023-05-10T15:29:43","date_gmt":"2023-05-10T15:29:43","guid":{"rendered":"http:\/\/18.139.116.96\/?p=44"},"modified":"2023-09-18T22:48:35","modified_gmt":"2023-09-18T14:48:35","slug":"aws-blog-post-1","status":"publish","type":"post","link":"http:\/\/blogs.zurien.com\/?p=44","title":{"rendered":"AWS Elastic Load Balancer(ELB)"},"content":{"rendered":"\n

Let’s talk about AWS basic networking! We will be introducing instances and test the web applications. Then, we will provision AWS Elastic Load balancer (ELB). ELB has 3 Types: Application, Network and Gateway Load Balancer but we will be focusing more on Application Load Balancer.<\/p>\n\n\n\n

Upon creation of these Application load balancer we will associate the Virtual Private Cloud(VPC), Security Groups (SG), Target groups and many more!<\/p>\n\n\n\n

AWS Application Load Balancer Configuration<\/strong><\/p>\n\n\n\n

Here is a guide or steps to create ELB, Application Load Balancer:<\/p>\n\n\n\n

Basic Configuration, Network Mapping<\/em> and Security Group:<\/em><\/p>\n\n\n\n

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  1. Go to EC2 managment console page and on the left pane, click Load Balancer under Load Balancing<\/li>\n\n\n\n
  2. By default, there are no Load Balancers created. Click Create Load Balancer located on the upper right of the main pane.<\/li>\n\n\n\n
  3. This takes you to the Load Balancer creation page. Select Application Load Balancer since our application runs in HTTP\/HTTPS<\/li>\n\n\n\n
  4. Assign Load Balancer name, select the VPC used the EC2 instances, Select Availability Zone (s) and their public subnets.<\/li>\n\n\n\n
  5. Under Security Group (SG), create a new one if necessary. Otherwise, select the correct SG for your ELB.<\/li>\n<\/ol>\n\n\n\n

    <\/p>\n\n\n\n

    Listeners and Routing<\/em><\/p>\n\n\n\n

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    1. Select HTTP Protocol and Port 80 (This can be HTTPS\/443)<\/li>\n\n\n\n
    2. Since we still don’t Target Port, we will create one. Click Create Target Group. This will open a new tab.<\/li>\n\n\n\n
    3. Choose Instance as target type and assign Target group name. Make sure protocol\/port are HTTP\/80. Make sure correct VPC is applied and click Next. This will take you to Register targets page.<\/li>\n\n\n\n
    4. Select EC2 instance name where you Load Balancer will forward the traffic to. Make sure port is set to 80 and click Include as pending below.<\/li>\n\n\n\n
    5. Verify new target is added with the Health Status Pending and click Create target group.<\/li>\n\n\n\n
    6. Back to Listening and routing, select the newly created Target group (hit refresh icon if its still not available) and click Create load balancer. <\/li>\n\n\n\n
    7. Click View load balancer. You will see the status is in Provisioning state as it may take a minute or two for the load balancer to be created.<\/li>\n<\/ol>\n\n\n\n

      <\/p>\n\n\n\n

      Test Elastic Load Balancer<\/em><\/p>\n\n\n\n

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      1. From the same page, click the Application Load Balancer name<\/li>\n\n\n\n
      2. You will see the DNS name, this is the actual URL we will be using to test the load balancer.<\/li>\n\n\n\n
      3. Copy the URL and paste it to the web browser address bar<\/li>\n\n\n\n
      4. You should get the same page of our EC2. Make sure that the page is using Load Balancer DNS URL.<\/li>\n<\/ol>\n\n\n\n

        <\/p>\n\n\n\n

        Click below to access the video version and consider subscribing<\/strong>.<\/p>\n\n\n\n

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