containers
Safeguard articles tagged "containers" — guides, analysis, and best practices for software supply chain and application security.
89 articles
Docker Meaning: What Docker Is and Why It Matters for Security
Docker packages an application and everything it needs into a portable container that runs the same everywhere. Understanding that model is the first step to securing it.
How to Scan a Container Image for Vulnerabilities
Scan any Docker or OCI image for OS-package and application-layer vulnerabilities, understand the results, and gate risky images before they reach your registry — with copy-paste commands.
Kubernetes Secrets Management Done Right
A Kubernetes Secret is base64, not encryption — and by default it sits in etcd in plaintext. Here is how to actually protect credentials with encryption at rest, external secret stores, and tight RBAC.
Docker Ubuntu Image: How to Use It Securely and Keep It Slim
The Docker Ubuntu image is a fine base, but a naive Dockerfile ships a bloated, vulnerable container. Here is how to pin, slim, and scan it properly.
Helm Chart Security Best Practices
Helm charts template every RBAC binding, image reference, and secret your cluster runs. Here is how to harden charts, verify provenance, and stop a templating tool from quietly shipping cluster-admin.
Kubernetes Network Policies: A Practical Guide
By default every pod in a Kubernetes cluster can talk to every other pod. NetworkPolicies are how you replace that flat network with least-privilege segmentation — here is how to design and roll them out without breaking traffic.
Container SBOM Generation: Best Practices for 2025
Container images are multi-layered artifacts that challenge SBOM generators. Here is how to generate comprehensive, accurate SBOMs for containerized applications.
Docker Architecture Explained: A Security-Focused Breakdown
Docker architecture is a client-server system built on the daemon, containerd, images, and the kernel features that isolate containers. Here is how the pieces fit and where the security lines are.
Choosing a Container Security Scanner
A practical checklist for choosing a container security scanner, covering base-image coverage, registry integration, runtime relevance, and how scan noise actually gets managed.
Runtime Threat Detection in Cloud-Native Environments
Static analysis catches known vulnerabilities. Runtime detection catches exploitation. Here is how to implement runtime threat detection for containerized workloads.
Running Java in Docker: A Secure Dockerfile Walkthrough
A Java Docker container done right: multi-stage builds, a JRE not a full JDK, non-root users, JVM container-awareness, and a base image that does not ship the world.
How to Sandbox Python Code Safely: A Security Guide
A security guide to running a Python sandbox: why language-level restriction fails, and the OS and runtime isolation that actually contains untrusted code.
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