generate/container.py

@@ -78,6 +78,22 @@ class Cgroup:
         namespace = maybe_or(val, "namespace", "")
         how = maybe_or(val, "how", "")
 
+        if not isinstance(config, list):
+            logger.log_warning("Config key in cgroup Config is invalid!")
+            config = []
+
+        if not isinstance(parent, str):
+            logger.log_warning("Parent key in cgroup Config is invalid!")
+            parent = ""
+
+        if not isinstance(namespace, str):
+            logger.log_warning("Namespace key in cgroup Config is invalid!")
+            namespace = ""
+
+        if not isinstance(how, str):
+            logger.log_warning("How key in cgroup Config is invalid!")
+            how = ""
+
         if how == "split" and parent != "":
             logger.log_warning(
                 "Split cgroups can not be combined with a cgroup parent!"

generate/generate.py

@@ -34,21 +34,23 @@ def load_container_config(file: Path, log: Log) -> dict | None:
             data = json.load(fp)
         except json.JSONDecodeError as e:
             log.log_error(f"{file.name} is not a valid JSON file!")
-            log.log_error(f"Exception: {e}")
+            log.log_debug(f"Exception: {e}")
             return None
         except UnicodeDecodeError as e:
             log.log_error(f"{file.name} is not a valid UTF8 file!")
-            log.log_error(f"Exception: {e}")
+            log.log_debug(f"Exception: {e}")
             return None
         except OSError as e:
             log.log_error(f"{file.name} could not be read!")
-            log.log_error(f"Exception: {e}")
+            log.log_debug(f"Exception: {e}")
             return None
     return data
 
 
 def create_container_from_config(data: dict, log: Log) -> Container | None:
     """Create a container object."""
+    log.log_info("Creating container...")
+    log.log_debug(f"Container config is:\n{data}")
     ct: Container | None = None
     try:
         ct = Container(data)
@@ -80,8 +82,10 @@ def main() -> None:
     if data is None:
         logger.log_error(f"{config_file} is invalid, aborting!")
         sys.exit(1)
+    try:
         ct = create_container_from_config(data, logger)
-    if ct is None:
+    except ConfigError as e:
+        logger.log_error(e)
         sys.exit(1)
     scripts = {
         "create-volumes": ct.create_volumes,

generate/log.py

@@ -8,11 +8,21 @@
 
 import datetime
 from pathlib import Path
+from typing import TypeAlias
+
+UNKNOWN = -1
+ERROR = 0
+WARNING = 1
+INFO = 2
+DEBUG = 3
+
+LogLevel: TypeAlias = int
 
 
 class Log:
     """Class for Logging."""
 
+    level: LogLevel = ERROR
     messages: list = []
     logfile: Path
 
@@ -24,6 +34,7 @@ class Log:
 
     def log_error(self, msg: str) -> None:
         """Log an error."""
+        if self.level >= ERROR:
             now = self.timestamp()
             prefix = "EE"
             log_message = f"[{now}] ({prefix}) {msg}"
@@ -31,11 +42,28 @@ class Log:
 
     def log_warning(self, msg: str) -> None:
         """Log a warning."""
+        if self.level >= WARNING:
             now = self.timestamp()
             prefix = "WW"
             log_message = f"[{now}] ({prefix}) {msg}"
             self.write_message(log_message)
 
+    def log_info(self, msg: str) -> None:
+        """Log an information."""
+        if self.level >= INFO:
+            now = self.timestamp()
+            prefix = "II"
+            log_message = f"[{now}] ({prefix}) {msg}"
+            self.write_message(log_message)
+
+    def log_debug(self, msg: str) -> None:
+        """Log a debug message."""
+        if self.level >= DEBUG:
+            now = self.timestamp()
+            prefix = "DD"
+            log_message = f"[{now}] ({prefix}) {msg}"
+            self.write_message(log_message)
+
     def write_message(self, msg: str) -> None:
         """Write the message."""
         print(msg)