Information Security

Container Security Policy

A container security policy template defining image provenance, registry control, runtime restriction and orchestration security, aligned to ISO 27001, NIST SP 800-53, NIST CSF.

14-20 pages|Updated 2026-09-12|3 frameworks

What's Included

1. Purpose & Scope

Objective and the container estate covered.

Policy ObjectivePlatforms in ScopeRoles and Responsibilities

2. Image Provenance

Only trusted images run.

Approved Base ImagesSigning and VerificationRegistry RestrictionsBuild Reproducibility

3. Image Scanning

Finds vulnerable layers before deployment.

Scan on BuildScan in RegistrySeverity GatesException Handling

4. Runtime Security

Limits what a container can do.

Least PrivilegeRoot ProhibitionRead-Only FilesystemsResource Limits

5. Orchestration

Securing the control plane.

Cluster Access ControlNamespace SegregationNetwork PoliciesSecrets Management

6. Monitoring & Response

Detecting container-level compromise.

Runtime DetectionLog CollectionIncident Response Interface

7. Records & Review

Evidence and cadence.

Image InventoryScan EvidenceAnnual Policy Review

Frequently Asked Questions

What should a container security policy include?

A comprehensive container security policy should include purpose & scope, image provenance, image scanning, runtime security, and more. This template covers 7 key sections aligned to ISO 27001, NIST SP 800-53, NIST CSF requirements.

Which frameworks require a information security policy?

Major frameworks requiring information security policies include ISO 27001, NIST SP 800-53, NIST CSF. This template maps directly to their control requirements, making it easier to demonstrate compliance across multiple standards.

How often should a container security policy be reviewed?

Best practice is to review your container security policy at least annually, or whenever significant changes occur in your organisation, technology environment, or regulatory landscape. Most frameworks including ISO 27001 and NIST CSF require documented policy review cycles.

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