Update setup script and add comments

.github/scripts/setup_routeros.py

@@ -1,30 +1,51 @@
 import routeros_api
 import os
 
+
 def main():
     user = os.environ.get("ROS_USERNAME")
     pswd = os.environ.get("ROS_PASSWORD")
     ip_addr = os.environ.get("ROS_IP_ADDRESS")
 
-    connection = routeros_api.RouterOsApiPool(ip_addr, username=user, password=pswd, port=8728, plaintext_login=True)
+    connection = routeros_api.RouterOsApiPool(
+        ip_addr, username=user, password=pswd, port=8728, plaintext_login=True)
     api = connection.get_api()
 
+    # Set up bridge
+
     bridge = api.get_resource("/interface/bridge")
     bridge.add(name="bridge")
 
+    # Set up certificates to allow use of REST API
+
     certificate = api.get_resource("/certificate")
-    certificate.add(name="root-cert", common_name="MyRouter", days_valid="3650", key_usage="key-cert-sign,crl-sign")
-    certificate.add(name="https-cert", common_name="MyRouter", days_valid="3650")
+    certificate.add(name="root-cert", common_name="MyRouter",
+                    days_valid="3650", key_usage="key-cert-sign,crl-sign")
+    certificate.add(name="https-cert",
+                    common_name="MyRouter", days_valid="3650")
     certs = certificate.get()
     root_cert_id = [x['id'] for x in certs if x['name'] == "root-cert"][0]
     http_cert_id = [x['id'] for x in certs if x['name'] == "https-cert"][0]
-    api.get_binary_resource("/").call("certificate/sign", {"id": bytes(root_cert_id, "utf-8")})
-    api.get_binary_resource("/").call("certificate/sign", {"id": bytes(http_cert_id, "utf-8"), "ca": b"root-cert"})
+    api.get_binary_resource("/").call("certificate/sign",
+                                      {"id": bytes(root_cert_id, "utf-8")})
+    api.get_binary_resource("/").call("certificate/sign",
+                                      {"id": bytes(http_cert_id, "utf-8"), "ca": b"root-cert"})
     ip_service = api.get_resource("/ip/service")
     services = ip_service.get()
-    www_ssl_service_id = [x['id'] for x in services if x['name'] == 'www-ssl'][0]
-    ip_service.set(id=www_ssl_service_id, certificate="https-cert", disabled="false")
+    www_ssl_service_id = [x['id']
+                          for x in services if x['name'] == 'www-ssl'][0]
+    ip_service.set(id=www_ssl_service_id,
+                   certificate="https-cert", disabled="false")
+
+    # Create a DHCP pool
+
+    pools = api.get_resource("/ip/pool")
+    pools.add(name="dhcp", ranges="192.168.88.100-192.168.88.200")
+
+    # Output the list of interfaces
+
+    print(api.get_resource("/interface").get())
 
 
 if __name__ == "__main__":
-    main()
+    main()