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Open-Source Security · krol3

container-security-checklist

Container Security Checklist is a curated reference guide documenting security best practices across the container lifecycle—from image building and registry management to runtime enforcement and workload protection. It organizes threat models, hardening techniques, and tooling recommendations into actionable phases, with no code or deployment artifacts included.

Source: GitHub — github.com/krol3/container-security-checklist
1.6k
GitHub stars
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Forks
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Primary language
Apache-2.0
License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

FieldValue
Repositorykrol3/container-security-checklist
Ownerkrol3
Primary languageUnknown
LicenseApache-2.0 — OSI-approved
Stars1.6k
Forks227
Open issues1
Latest releaseUnknown
Last updated2025-09-15
Sourcehttps://github.com/krol3/container-security-checklist

What container-security-checklist is

A GitHub-hosted checklist repository covering container security domains: supply chain (image signing, SCA), image hardening (minimal base images, rootless execution, capability dropping, Dockerfile linting), registry controls, runtime constraints, infrastructure isolation, secrets management, and common attack patterns. References established frameworks (CNCF tag-security, Liz Rice threat model) and third-party tools (Hadolint, Trivy, Cosign, Notary) but provides guidance only—no executable code or proprietary scanning engines.

Quickstart

Get the container-security-checklist source

Clone the repository and explore it locally.

terminalbash
git clone https://github.com/krol3/container-security-checklist.gitcd container-security-checklist# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

DevSecOps team onboarding and security baseline definition

Organizations establishing container security programs can use this checklist to structure their security posture across build, registry, runtime, and infrastructure layers, ensuring no domain is overlooked during initial implementation.

Dockerfile and container image review reference

Development and security teams can reference specific hardening patterns (rootless users, capability dropping, minimal base images, semantic versioning) and Dockerfile linting tools during code review and CI/CD pipeline design.

Security training and policy documentation

Security leads and architects can use the structured threat model and checklist items as teaching material and policy baseline for internal documentation, compliance audits, and security awareness programs.

Implementation considerations

  • Treat the checklist as a living reference, not a compliance checkbox. Prioritize items based on your threat model, workload criticality, and existing tooling maturity.
  • Integrate specific tool recommendations (Cosign for signing, Trivy for scanning, Hadolint for Dockerfile linting) into your CI/CD pipeline; the checklist does not automate this.
  • Map checklist items to your specific container runtime (Docker, containerd, CRI-O) and orchestrator (Kubernetes, Docker Swarm) capabilities and constraints.
  • Establish ownership and review cycles for each security domain (build, registry, runtime, infrastructure, data) to ensure checklist adoption evolves with your platform.
  • Use the threat model section to contextualize which items are highest-risk in your threat landscape (e.g., supply chain vs. runtime escape vectors).

When to avoid it — and what to weigh

  • You need executable scanning or enforcement tooling — This is a reference checklist, not a scanning engine or policy enforcement platform. It links to external tools (Trivy, Hadolint) but does not provide integrated vulnerability detection or runtime policy enforcement.
  • You require hands-on automation or IaC templates — The repository contains guidance and best practices only. It does not include Terraform, Helm, Docker Compose, or Kubernetes manifests to automatically instantiate secure container environments.
  • You need compliance-specific or industry-vertical guidance — The checklist covers general container security principles but does not address PCI-DSS, HIPAA, SOC 2, or industry-specific threat models or regulatory requirements.
  • You expect frequent updates or versioned releases — No formal release cycle or versioning scheme is documented. Last push was 2025-09-15, but no release tags, changelog, or SLA for content updates are provided.

License & commercial use

Apache License 2.0 (Apache-2.0). Permissive open-source license permitting commercial use, modification, and distribution under the Apache-2.0 terms, provided that the original license and copyright notice are retained.

Apache-2.0 is a permissive OSI-approved license that explicitly permits commercial use. The checklist itself is a reference document (not software) and can be used, forked, and modified in commercial environments without restriction, provided the license is retained. However, the repository does not grant licenses for any linked third-party tools or products referenced in the checklist (e.g., Aqua, vendor solutions); review their terms separately.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

SignalAssessment
MaintenanceActive
DocumentationAdequate
License clarityClear
Deployment complexityLow
DEV.co fitGood
Assessment confidenceHigh
Security considerations

The checklist documents established container security practices and threat vectors (supply chain attacks, container escape, misconfiguration, secrets exposure) aligned with CNCF and industry references. It does not include exploit details or vulnerability disclosures. Implementation security depends entirely on how thoroughly users adopt the checklist items and integrate recommended tools into their CI/CD and runtime environments. The checklist itself poses no security risk; treat it as a design reference, not a security control.

Alternatives to consider

CNCF Security Whitepaper & TAG-Security Guidelines

Authoritative framework covering cloud-native and container security; more formal and comprehensive but less consumable as a quick checklist. Often the upstream source for container security principles referenced in this repository.

CIS Benchmarks for Docker and Kubernetes

Standardized, compliance-oriented benchmarks with specific configuration recommendations and scoring criteria. More prescriptive than this checklist but requires CIS membership for full access and continuous updates.

Commercial container security platforms (Aqua, Sysdig, Snyk, JFrog)

Integrated scanning, runtime enforcement, and compliance automation. Trade-off: vendor lock-in and cost; suited for large enterprises with automation-heavy DevSecOps programs.

Software development agency

Build on container-security-checklist with DEV.co software developers

Use this community-maintained checklist to structure your container security program across build, registry, runtime, and infrastructure. Fork the repository, adapt it to your threat model, and integrate recommended tools into your DevSecOps pipeline.

Talk to DEV.co

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container-security-checklist FAQ

Can I use this checklist directly in compliance audits (PCI, SOC 2, HIPAA)?
The checklist covers general container security best practices but does not map to specific compliance frameworks. Use it as a foundational reference; supplement with compliance-specific guidance, configuration baselines, and audit checklists for your target framework.
Does the repository include automated scanning or policy enforcement?
No. The checklist is a reference document. It links to third-party tools (Trivy, Hadolint, Cosign) but does not include integrated scanning, policy engines, or deployment automation. You must select and integrate tools separately.
How often is the checklist updated with new threats and tools?
Unknown. No formal release cycle or update schedule is published. The repository shows recent activity (last push 2025-09-15) but no versioning or changelog. Monitor GitHub for updates or community contributions.
Is this checklist suitable for regulated industries (finance, healthcare)?
Yes, as a baseline reference; however, regulated environments require additional compliance-specific controls, audit trails, and governance frameworks beyond this checklist. Use it as a starting point and layer in industry and regulatory requirements.

Software developers & web developers for hire

DEV.co is a software development agency delivering custom software development services to companies building on open source. Our software developers and web developers design, integrate, and ship production systems — spanning web development, APIs, AI, data, and cloud. If container-security-checklist is part of your open-source security roadmap, our team can implement, customize, migrate, and maintain it.

Adopt Container Security Best Practices

Use this community-maintained checklist to structure your container security program across build, registry, runtime, and infrastructure. Fork the repository, adapt it to your threat model, and integrate recommended tools into your DevSecOps pipeline.