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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
The domain with the configured record name (e.g., app.aletest.run) will be used as the access domain for ale.

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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].
Ingress configuration is required for operation.