Container Image Scanning Best Practices
A practical guide to container image scanning: when to scan, what to block, what scanners like Snyk miss, and how to build a policy that actually gets remediated.
Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
A practical guide to container image scanning: when to scan, what to block, what scanners like Snyk miss, and how to build a policy that actually gets remediated.
Wildcard verbs, cluster-admin bindings, and forgotten service account tokens turn RBAC into a rubber stamp. Here is how to design roles that contain a breach instead of amplifying it.
PodSecurityPolicy is gone. Pod Security Admission and the three Pod Security Standards are how you enforce baseline and restricted profiles in modern Kubernetes — here is how to adopt them without breaking workloads.
Every binary, library, and shell in a Docker image is attack surface. Here is how to strip an image down to the bytes your app actually needs — and cut your CVE count by up to 95%.
Scanning a container image is easy. Scanning it at the right moment, cutting the false positives, and gating deploys on the result is where most programs fall apart.
You already use a non-root user and a slim base. These are the pro-level Docker hardening tips — read-only filesystems, dropped capabilities, and the docker.sock trap — that actually stop breakouts.
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.
Every Docker layer you ship is attack surface you have to defend. Learn how to build lean, non-root, secret-free images that survive a registry scan and a real audit.
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.
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