How can I use config.yaml in order to define a list of IPs for a web application?

 In a function like YAML.array certainly you can define the array of allowed IP addresses by using the “config.yaml” file by using the following structure of coding:-

#config.yaml
allowed_ips:
192.168.1.10
10.0.2.5
172.16.0.100

This above structure will utilize the “allowed_ips” to process your objective (to represent an array of IP addresses in your case). Further, if you want to extend this array in the future, you can just simply add additional IP addresses. Here is how you can do so:-

allowed_ips
            -192.168.1.10
            -10.0.2.5
            - 172.16.0.100
            - 123.45.67.89.       #Additional IP address

Therefore by combining the above techniques, you can easily gain scalability and modification of the array even without changing the structure of the configuration file as it can ensure readability and flexibility while managing the allowed IP addresses.

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