Add a listener rule for your Application Load Balancer

To add a rule

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. On the navigation pane, choose Load Balancers.

3. Select the load balancer.

4. On the Listeners and rules tab, select the text in the Protocol:Port column to open the detail page for the listener.

5. On the Rules tab, choose Add rule.

6. (Optional) To specify a name for your rule, expand Name and tags and enter the name. To add additional tags, choose Add additional tags and enter the tag key and tag value.

7. For each condition, choose Add condition, choose the condition type, and provide the required condition values:

   • Host header – Select the match pattern type and enter the host header.

     Value matching – Maximum 128 characters. Not case sensitive. Allowed characters are a-z, A-Z, 0-9; the following special characters: -_.; and wildcards (* and ?). You must include at least one "." character. You can include only alphabetical characters after the final "." character.

     Regex matching – Maximum 128 characters.

   • Path – Select the match pattern type and enter the path.

     Value matching – Maximum 128 characters. Case sensitive. Allowed characters are a-z, A-Z, 0-9; the following special characters: _-.$/~"'@:+; &; and wildcards (* and ?).

     Regex matching – Maximum 128 characters.

   • Query string – Enter key:value pairs, or values without keys.

     Maximum 128 characters. Not case sensitive. Allowed characters are a-z, A-Z, 0-9; the following special characters: _-.$/~"'@:+&()!,;=; and wildcards (* and ?).

   • HTTP request method – Enter the HTTP request method.

     Maximum 40 characters. Case sensitive. Allowed characters are A-Z, and the following special characters: -_. Wildcards are not supported.

   • HTTP header – Select the match pattern type and enter the name of the header and the comparison strings.

     • HTTP header name – Rule will assess requests containing this header to confirm matching values.

       Value matching – Maximum 40 characters. Not case sensitive. Allowed characters are a-z, A-Z, 0-9, and the following special characters: *?-!#$%&'+.^_`|~. Wildcards are not supported.

       Regex matching – Maximum 128 characters.

     • HTTP header value – Enter strings to compare against the HTTP header value.

       Value matching Maximum 128 characters. Not case sensitive. Allowed characters are a-z, A-Z, 0-9; spaces; the following special characters: !"#$%&'()+,./:;<=>@[]^_`{|}~-; and wildcards (* and ?).

       Regex matching – Maximum 128 characters.

   • Source IP – Define the source IP address in CIDR format. Both IPv4 and IPv6 CIDRs are allowed. Wildcards are not supported.

8. (Optional) To add a transform, choose Add transform, choose the transform type, and enter a regular expression to match and a replacement string.

9. (Optional, HTTPS listeners only) For Pre-routing action, select one of the following actions:

   • Authenticate user – Choose an identity provider and provide the required information. For more information, see Authenticate users using an Application Load Balancer.

   • Validate token – Enter the JWKS endpoint, issues, and any additional claims. For more information, see Verify JWTs using an Application Load Balancer.

10. For Routing action, select one of the following actions:

    • Forward to target groups – Choose a target group. To add another target group, choose Add target group, choose a target group, review the relative weights, and update the weights as needed. You must enable group-level stickiness if you enabled stickiness on any of the target groups.

    • Redirect to URL – Enter the URL by entering each part separately on the URI parts tab, or by entering the full address on the Full URL tab. For Status code, select either temporary (HTTP 302) or permanent (HTTP 301) based on your needs.

    • Return fixed response – Enter the Response code to return for dropped client requests. Optionally, you can specify the Content type and a Response body.

11. Choose Next.

12. For Priority, enter a value from 1-50,000. Rules are evaluated in priority order from the lowest value to the highest value.

13. Choose Next.

14. On the Review and create page, choose Create.