AWS ALB Setup

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Create Target Group

Click Create target group in EC2 > Load Balancing > Target groups.

In the Specify group details menu, enter or select the target group information as follows and click Next.

• Basic configuration
  • Choose a target type: Instances
  • Target group name: Enter target group name
  • Protocol-Port: HTTP, 9001
  • IP address type: IPv4
  • VPC: Select VPC containing the instance
  • Protocol version: HTTP1

Select the instance where ale is installed, enter 9001 in Ports for the selected instances, and click Include as pending below. Then click Create target group.

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Create ALB

Click Create Load Balancer in EC2 > Load Balancing > Load balancers. Then select Application Load Balancer.

Enter or select the load balancer information as follows and click Create load balancer:

• Basic configuration
  • Name: ALB name
  • Scheme: internet-facing
  • IP address type: ipv4
• Network mapping
  • VPC: Select VPC containing the instance
  • Availability Zones: Select all available subnets
• Security groups
  • Security groups: Select security group applied to EC2 instance
• Listeners and routing
  • Listener port: 80
  • Target group: Select previously created target group

Click Add rule in the created Load balancer page, and create a rule following these 5 steps:

1

Add rule

Enter the Rule name in the Name field.

2

Define rule conditions

Click Add condition, select Host header in the modal, enter app.[domain], and click confirm to create a Condition card. Then click Next.

3

Define rule Actions

Select Forward to target groups for Action types, choose the previously created target group, and click Next.

4

Set rule priority

Set Priority to 1 and click Next.

5

Review and create

Finally, click Create to create the rule.

After creating the rule, wait a moment. If ale is running properly on the instance, the status of the target group routed by ALB will show as Healthy as in the image below.

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Create DNS Record for ale dashboard

Click Create record in Route53 > Hosted zones > Target domain page.

Enter the values as follows in the create record page and click Create record:

• Record name: app
• Record type: A
• Alias: Enable
• Route traffic to
  • Alias to Application and Classic Load Balancer
  • Region: VPC region
  • ALB: Select previously created ALB

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Request ACM Certificate

Click Request in the AWS Certificate Manager dashboard, select Request a public certificate on the following screen, and click Next.

Enter the certificate information as follows and click Request:

• Domain names
  • Fully qualified domain name: app.[domain]
• Validation method
  • DNS validation
• Key configuration
  • RSA 2048

For DNS validation, click Create record in Route 53 on the created certificate page, then click Create records.

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Add HTTPS Listener to ALB

Click Add listener on the created Load balancer page in EC2 > Load Balancing > Load Balancers.

Enter the values as follows on the next screen and click Add:

• Listener configuration
  • Protocol: HTTPS
  • Port: 443
• Default actions
  • Routing actions: Forward to target groups
    • Target group: Select previously created target group
• Security Policy
  • Security category: All security policies
  • Policy name: Apply policy marked as recommended
• Default SSL/TLS server certificate
  • Certificate source: From ACM
  • Certificate: Select previously created ACM certificate

Test that you can access ale by visiting https://app.[domain].