feat(sys-ctl-hlth-csp): add support for ignoring network block domains

Introduced new variable HEALTH_CSP_IGNORE_NETWORK_BLOCKS_FROM (list, default [])
to suppress network block reports (e.g., ORB) from specific external domains.
Updated script.py to accept and forward the flag, extended systemd exec command
in tasks, added defaults, and documented usage in README.

Ref: https://chatgpt.com/share/68dfc69b-7c94-800f-871b-3525deb8e374

roles/sys-ctl-hlth-csp/files/script.py

@@ -21,11 +21,19 @@ def extract_domains(config_path):
         print(f"Directory {config_path} not found.", file=sys.stderr)
         return None
 
-def run_checkcsp(domains):
+def run_checkcsp(domains, ignore_network_blocks_from):
     """
-    Executes the 'checkcsp' command with the given domains.
+    Executes the 'checkcsp' command with the given domains and optional ignores.
     """
-    cmd = ["checkcsp", "start", "--short"] + domains
+    cmd = ["checkcsp", "start", "--short"]
+
+    # pass through ignore list only if not empty
+    if ignore_network_blocks_from:
+        cmd.append("--ignore-network-blocks-from")
+        cmd.extend(ignore_network_blocks_from)
+
+    cmd += domains
+
     try:
         result = subprocess.run(cmd, check=True)
         return result.returncode
@@ -45,6 +53,12 @@ def main():
         required=True,
         help="Directory containing NGINX .conf files"
     )
+    parser.add_argument(
+        "--ignore-network-blocks-from",
+        nargs="*",
+        default=[],
+        help="Optional: one or more domains whose network block failures should be ignored"
+    )
     args = parser.parse_args()
 
     domains = extract_domains(args.nginx_config_dir)
@@ -55,7 +69,7 @@ def main():
         print("No domains found to check.")
         sys.exit(0)
 
-    rc = run_checkcsp(domains)
+    rc = run_checkcsp(domains, args.ignore_network_blocks_from)
     sys.exit(rc)
 
 if __name__ == "__main__":