Update docs

README.md

@@ -1,6 +1,11 @@
-# AWS Lightsail instance public network IP inspection 
+# Amazon Lightsail instance public network IP inspection 
 
-Detect and automatically switch static IPs for instances.
+* 🚀 Initialize an Amazon Lightsail instance. 
+* 😎 Procure a static IP and link it with the corresponding instance. 
+* 🎯 Register a distinct domain name and delegate subdomains to direct traffic towards your Lightsail assets. 
+* 🎉 You are now able to access your assets via the registered domain name.
+
+🔍 This application consistently conducts active surveillance on the specified port of the instance. 🚫If access is obstructed, it will renew the static IP of the instance ⚡ and update the domain name record 🔄.
 
 ## Environment
 
@@ -11,6 +16,8 @@ AWS_ACCESS_KEY_ID=<your aws access key id>
 AWS_SECRET_ACCESS_KEY=<your aws secret access key>
 REGION_NAME=<region of instance>
 LIGHTSAIL_INSTANCE_NAME=<instance name>
+LIGHTSAIL_INSTANCE_PORT=<port for inspection>
+DOMAIN_ENTRY_NAME=<your domain>
 ```
 
 ## Usage

main.py

@@ -11,7 +11,7 @@ def job_wrapper():
 
 
 if __name__ == '__main__':
-    schedule.every(5).minutes.do(job_wrapper)
+    schedule.every(1).minutes.do(job_wrapper)
 
     while True:
         schedule.run_pending()

src/aws_lightsail_guard/guard.py

@@ -11,7 +11,7 @@ class Guard:
     def lightsail_instance_public_ip_keepalive(self, name):
         instance = lightsail.get_instance(instanceName=name)['instance']
         # TODO 此处应该检查域名
-        if check_address(instance['publicIpAddress'], 443):
+        if check_address(instance['publicIpAddress'], int(os.environ['LIGHTSAIL_INSTANCE_PORT'])):
             logging.info(
                 f"Instance {instance['name']} public static ip {instance['publicIpAddress']} OK")
         else: