Governance Processes and Documentation

Governance Processes and Documentation

Effective governance ensures consistent security practices across Kubernetes deployments. This includes change management procedures, security review processes, and incident response plans adapted for container environments. Documentation must be maintained and regularly updated to reflect current practices.

Policy as code enables version-controlled, auditable security policies. Open Policy Agent, Kyverno, or similar tools enforce governance policies through admission control. GitOps workflows ensure all changes undergo review before deployment. This approach provides both security control and compliance evidence.

# Governance policy enforcement with Kyverno
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: governance-policies
spec:
  validationFailureAction: enforce
  background: true
  rules:
  # Require security scanning annotation
  - name: require-security-scan
    match:
      any:
      - resources:
          kinds:
          - Deployment
          - StatefulSet
          namespaces:
          - "prod-*"
          - "staging-*"
    validate:
      message: "Images must be scanned for vulnerabilities"
      pattern:
        metadata:
          annotations:
            security.scan.date: "?*"
            security.scan.status: "passed"
            
  # Enforce change request tracking
  - name: require-change-request
    match:
      any:
      - resources:
          kinds:
          - Deployment
          - Service
          - ConfigMap
          namespaces:
          - "prod-*"
    validate:
      message: "Production changes require change request ID"
      pattern:
        metadata:
          annotations:
            change-management.request-id: "?*"
            
  # Require resource quotas
  - name: require-resource-quotas
    match:
      any:
      - resources:
          kinds:
          - Namespace
    generate:
      kind: ResourceQuota
      name: default-quota
      namespace: "{{request.object.metadata.name}}"
      data:
        spec:
          hard:
            requests.cpu: "10"
            requests.memory: "10Gi"
            limits.cpu: "20"
            limits.memory: "20Gi"
            persistentvolumeclaims: "10"