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mukul975
c21af3347e
- Add scripts/agent.py and references/api-reference.md to all remaining skills - Update all 648 LICENSE files: copyright now reads 'Mahipal' - Add implementing-security-monitoring-with-datadog (new skill with full anatomy) - All 649 skills now have: SKILL.md, LICENSE, scripts/agent.py, references/api-reference.md
109 lines
4.2 KiB
Python
109 lines
4.2 KiB
Python
#!/usr/bin/env python3
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"""OPA Gatekeeper Policy Enforcement Agent - audits constraint templates and violation status."""
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import json
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import argparse
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import logging
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import subprocess
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from collections import defaultdict
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from datetime import datetime
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logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
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logger = logging.getLogger(__name__)
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def kubectl_json(args_list):
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cmd = ["kubectl"] + args_list + ["-o", "json"]
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result = subprocess.run(cmd, capture_output=True, text=True)
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return json.loads(result.stdout) if result.returncode == 0 else {}
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def get_constraint_templates():
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return kubectl_json(["get", "constrainttemplates"])
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def get_constraints():
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templates = get_constraint_templates()
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constraints = []
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for item in templates.get("items", []):
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kind = item.get("metadata", {}).get("name", "")
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result = kubectl_json(["get", kind])
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for c in result.get("items", []):
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constraints.append(c)
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return constraints
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def audit_constraint_violations(constraints):
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violations = []
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for constraint in constraints:
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name = constraint.get("metadata", {}).get("name", "")
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kind = constraint.get("kind", "")
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status = constraint.get("status", {})
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total = status.get("totalViolations", 0)
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violation_list = status.get("violations", [])
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if total > 0:
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violations.append({
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"constraint": name, "kind": kind, "total_violations": total,
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"enforcement_action": constraint.get("spec", {}).get("enforcementAction", "deny"),
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"sample_violations": violation_list[:5],
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})
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return sorted(violations, key=lambda x: x["total_violations"], reverse=True)
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def analyze_policy_coverage(constraints):
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categories = defaultdict(int)
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enforcement = defaultdict(int)
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for c in constraints:
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categories[c.get("kind", "unknown")] += 1
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enforcement[c.get("spec", {}).get("enforcementAction", "deny")] += 1
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return {"total_constraints": len(constraints), "by_template": dict(categories), "by_enforcement_action": dict(enforcement)}
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def check_audit_status():
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cmd = ["kubectl", "get", "pods", "-n", "gatekeeper-system", "-o", "json"]
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result = subprocess.run(cmd, capture_output=True, text=True)
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pods = json.loads(result.stdout) if result.returncode == 0 else {}
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pod_status = []
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for pod in pods.get("items", []):
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name = pod.get("metadata", {}).get("name", "")
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phase = pod.get("status", {}).get("phase", "")
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ready = all(c.get("ready", False) for c in pod.get("status", {}).get("containerStatuses", []))
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pod_status.append({"name": name, "phase": phase, "ready": ready})
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return pod_status
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def generate_report(templates, constraints, violations, coverage, pod_status):
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return {
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"timestamp": datetime.utcnow().isoformat(),
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"constraint_templates": len(templates.get("items", [])),
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"active_constraints": len(constraints),
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"policy_coverage": coverage,
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"total_violations": sum(v["total_violations"] for v in violations),
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"constraints_with_violations": len(violations),
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"top_violations": violations[:15],
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"gatekeeper_pods": pod_status,
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"gatekeeper_healthy": all(p["ready"] for p in pod_status) if pod_status else False,
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}
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def main():
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parser = argparse.ArgumentParser(description="OPA Gatekeeper Policy Enforcement Audit Agent")
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parser.add_argument("--output", default="gatekeeper_audit_report.json")
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args = parser.parse_args()
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templates = get_constraint_templates()
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constraints = get_constraints()
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violations = audit_constraint_violations(constraints)
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coverage = analyze_policy_coverage(constraints)
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pod_status = check_audit_status()
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report = generate_report(templates, constraints, violations, coverage, pod_status)
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with open(args.output, "w") as f:
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json.dump(report, f, indent=2, default=str)
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logger.info("Gatekeeper: %d templates, %d constraints, %d violations",
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report["constraint_templates"], report["active_constraints"], report["total_violations"])
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print(json.dumps(report, indent=2, default=str))
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if __name__ == "__main__":
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main()
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