Adjusted site-up example to be aligned with latest blog post changes

See:
cfengine/website#972

Signed-off-by: Ole Herman Schumacher Elgesem <[email protected]>

examples/site-up/site_up.cf

@@ -6,16 +6,14 @@ promise agent site_up
 }
 
 bundle agent site_up_autorun
-# @brief Example illustrating use of site_up promise type
 {
   meta:
-
-      "tags" slist => { "autorun" };
+    "tags" slist => { "autorun" };
 
   site_up:
-      "http://172.28.128.10";
-      "https://cfengine.com/";
-      "https://cfengine2.com/";
-      "https://unavailable.com"
-        skip_ssl_verification => "true";
+    "http://172.28.128.10";
+    "https://cfengine.com/";
+    "https://cfengine2.com/";
+    "https://unavailable.com"
+      skip_ssl_verification => "true";
 }

examples/site-up/site_up.py

@@ -7,7 +7,14 @@
 
 class SiteUpPromiseTypeModule(PromiseModule):
     def __init__(self):
-        super().__init__("site_up_promise_module", "0.0.2")
+        super().__init__("site_up_promise_module", "0.0.3")
+
+    def is_url_valid(self, url):
+        regex = re.compile(
+            r"https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()!@:%_\+.~#?&\/\/=]*)",
+            re.IGNORECASE,
+        )
+        return re.match(regex, url) is not None
 
     def validate_promise(self, promiser, attributes, metadata):
         if not self.is_url_valid(promiser):
@@ -24,7 +31,7 @@ def evaluate_promise(self, url, attributes, metadata):
         error = None
         try:
             code = urllib.request.urlopen(url, context=ssl_ctx).getcode()
-            self.log_info(f"Site '{url}' is UP!")
+            self.log_verbose(f"Site '{url}' is UP!")
             return Result.KEPT
         except urllib.error.HTTPError as e:
             # HTTPError exception returns response code and useful when handling exotic HTTP errors
@@ -39,13 +46,6 @@ def evaluate_promise(self, url, attributes, metadata):
         self.log_error(error)
         return Result.NOT_KEPT
 
-    def is_url_valid(self, url):
-        regex = re.compile(
-            r"https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()!@:%_\+.~#?&\/\/=]*)",
-            re.IGNORECASE,
-        )
-        return re.match(regex, url) is not None
-
 
 if __name__ == "__main__":
     SiteUpPromiseTypeModule().start()