Refactor Kubernetes Pod Security Standards for Multi-Tenant Services with DeployClaw Infrastructure Specialist Agent
Automate Kubernetes Pod Security Standards Refactoring in Kubernetes + Go
The Pain: Manual Pod Security Policy Management
Your current workflow involves manually auditing YAML manifests across multiple namespaces, cross-referencing them against PCI-DSS, SOC2, and CIS Kubernetes Benchmarks. You're hand-editing securityContext, capabilities, runAsUser, fsGroup, and allowPrivilegeEscalation fields across dozens of deployments. Senior engineers spend 6–8 hours per week triaging Pod Security Standard (PSS) violations, running kubectl get pods --all-namespaces -o json | jq '.items[] | select(.metadata.labels.tenant != null)' chains to identify multi-tenant services, then manually patching each manifest in Git.
One missed privileged: true flag in a side-car container creates a blast radius across your entire cluster. A forgotten readOnlyRootFilesystem: false in production becomes a compliance audit failure. The lack of automation means policy drift—your security posture degrades week-by-week as new deployments bypass deprecated manual checks. Developers bypass PSS requirements out of urgency, and you lack automated enforcement until runtime, when a pod fails to schedule.
DeployClaw Infrastructure Specialist Agent Execution
The Infrastructure Specialist agent executes pod security refactoring at the OS level using internal SKILL.md protocols. This is not text generation; this is live cluster introspection and manifest mutation.
The agent:
- Ingests your live cluster state via
kubectlAPI calls (not API descriptions). - Parses every Deployment, StatefulSet, and DaemonSet manifest in your cluster, including those managed by Helm.
- Applies PSS Level enforcement (restricted, baseline, or privileged) scoped to tenant labels.
- Validates RBAC bindings to ensure tenant isolation isn't compromised by overpermissioned service accounts.
- Generates idempotent patches that can be applied to your Git-tracked manifests without collision.
- Tests policy enforcement by dry-running pod schedules against the refactored security policies.
The agent operates directly on your machine—no cloud API calls, no external validation. It reads your kubeconfig, connects to your cluster, and executes changes with full observability.
Technical Proof: Before and After
Before:
apiVersion: apps/v1
kind: Deployment
metadata:
name: user-service
spec:
template:
spec:
containers:
- name: app
image: user-service:v1.2.3
# No securityContext defined
After:
apiVersion: apps/v1
kind: Deployment
metadata:
name: user-service
labels:
pod-security.kubernetes.io/enforce: restricted
spec:
template:
spec:
securityContext:
runAsNonRoot: true
runAsUser: 1000
fsGroup: 3000
seccompProfile:
type: RuntimeDefault
containers:
- name: app
image: user-service:v1.2.3
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
capabilities:
drop:
- ALL
volumeMounts:
- name: tmp
mountPath: /tmp
volumes:
- name: tmp
emptyDir: {}
Agent Execution Log
{
"task_id": "pss-refactor-2024-11-14-09-42",
"agent": "Infrastructure Specialist",
"start_time": "2024-11-14T09:42:17Z",
"status": "in_progress",
"execution_steps": [
{
"step": 1,
"phase": "cluster_discovery",
"action": "Authenticating to cluster via kubeconfig context: prod-us-east-1",
"duration_ms": 240,
"result": "success"
},
{
"step": 2,
"phase": "manifest_enumeration",
"action": "Scanning 47 namespaces for Deployment, StatefulSet, DaemonSet, and CronJob resources",
"duration_ms": 1850,
"result": "success",
"found_resources": 312
},
{
"step": 3,
"phase": "tenant_isolation_analysis",
"action": "Identifying multi-tenant workloads via labels: tenant, team, sla-tier",
"duration_ms": 920,
"result": "success",
"multi_tenant_deployments": 89,
"isolated_tenants": 23
},
{
"step": 4,
"phase": "pss_enforcement_mapping",
"action": "Applying PSS Level=restricted to 89 multi-tenant workloads; Level=baseline to 67 internal services; Level=privileged to 5 node-critical system pods",
"duration_ms": 3420,
"result": "success",
"violations_detected": 143,
"violations_remediable": 141
},
{
"step": 5,
"phase": "securitycontext_synthesis",
"action": "Synthesizing securityContext blocks for 141 non-compliant containers; computing minimal required capabilities",
"duration_ms": 5610,
"result": "success",
"containers_refactored": 241
},
{
"step": 6,
"phase": "rbac_validation",
"action": "Cross-referencing ServiceAccount permissions against refactored pod policies to detect privilege escalation vectors",
"duration_ms": 2340,
"result": "success",
"rbac_conflicts": 3,
"conflicts_logged": true
},
{
"step": 7,
"phase": "patch_generation",
"action": "Generating JSON Merge Patch and Strategic Merge Patch manifests for Git commit",
"duration_ms": 1250,
"result": "success",
"patch_files_created": 89
},
{
"step": 8,
"phase": "dry_run_validation",
"action": "Executing dry-run against cluster API; verifying refactored manifests pass pod admission controller",
"duration_ms": 4180,
"result": "success",
"dry_run_failures": 0
},
{
"step": 9,
"phase": "compliance_audit",
"action": "Auditing refactored cluster state against CIS Kubernetes Benchmark v1.7.0",
"duration_ms": 3690,
"result": "success",
"compliance_score_before": "62/100",
"compliance_score_after": "94/100"
},
{
"step": 10,
"phase": "reporting",
"action": "Generating remediation report: 141 violations fixed, 3 RBAC conflicts flagged for manual review, 312 resources scanned",
"duration_ms": 520,
"result": "success",
"report_path": "/home/engineer/.deployclaw/reports/pss-refactor-2024-11-14.html"
}
],
"end_time": "2024-11-14T09:43:58Z",
"total_duration_ms": 24040,
"violations_fixed": 141,
"resources_refactored": 89,
"git_staging_ready": true,
"rbac_conflicts_requiring_review": 3,
"next_action": "Review patch files in /home/engineer/.deployclaw/patches/ and commit to branch: feature/pss-enforcement"
}
Why This Matters
You've now automated what previously consumed 6–