Refactor JVM memory filters, add Redis sizing and Docker cleanup service

- Replace jvm_filters with unified memory_filters (JVM + Redis helpers)
- Add redis_maxmemory_mb filter and unit tests
- Introduce sys-ctl-cln-docker role (systemd-based Docker prune + anon volumes)
- Refactor disk space health check to Python script and wire SIZE_PERCENT_CLEANUP_DISC_SPACE
- Adjust schedules and services for Docker cleanup and disk space health

See discussion: https://chatgpt.com/share/6925c1c5-ee38-800f-84b6-da29ccfa7537

roles/sys-ctl-hlth-disc-space/files/script.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+import argparse
+import subprocess
+import sys
+
+def get_disk_usage_percentages():
+    """
+    Returns a list of filesystem usage percentages as integers.
+    Equivalent to: df --output=pcent | sed 1d | tr -d '%'
+    """
+    result = subprocess.run(
+        ["df", "--output=pcent"],
+        capture_output=True,
+        text=True,
+        check=True
+    )
+
+    lines = result.stdout.strip().split("\n")[1:]  # Skip header
+    percentages = []
+
+    for line in lines:
+        value = line.strip().replace("%", "")
+        if value.isdigit():
+            percentages.append(int(value))
+
+    return percentages
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Check disk usage and report if any filesystem exceeds the given threshold."
+    )
+
+    parser.add_argument(
+        "minimum_percent_cleanup_disk_space",
+        type=int,
+        help="Minimum free disk space percentage threshold that triggers a warning."
+    )
+
+    args = parser.parse_args()
+    threshold = args.minimum_percent_cleanup_disk_space
+
+    print("Checking disk space usage...")
+    subprocess.run(["df"])  # Show the same df output as the original script
+
+    errors = 0
+    percentages = get_disk_usage_percentages()
+
+    for usage in percentages:
+        if usage > threshold:
+            print(f"WARNING: {usage}% exceeds the limit of {threshold}%.")
+            errors += 1
+
+    sys.exit(errors)
+
+
+if __name__ == "__main__":
+    main()

roles/sys-ctl-hlth-disc-space/files/script.sh

@@ -1,15 +0,0 @@
-#!/bin/sh
-# @param $1 mimimum free disc space
-errors=0
-minimum_percent_cleanup_disc_space="$1"
-echo "checking disc space use..."
-df
-for disc_use_percent in $(df --output=pcent | sed 1d)
-do
-    disc_use_percent_number=$(echo "$disc_use_percent" | sed "s/%//")
-    if [ "$disc_use_percent_number" -gt "$minimum_percent_cleanup_disc_space" ]; then
-      echo "WARNING: $disc_use_percent_number exceeds the limit of $minimum_percent_cleanup_disc_space%."
-      errors+=1;
-    fi
-done
-exit $errors;