Articles

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BI Birol Tilki

Stop Unsigned Containers on AKS with Kyverno and Cosign

Admission-time Kyverno on AKS: ACR allowlist, deny :latest, verify digests with key-based cosign. Production pilot — then torn down.

Aug 05, 2026 · 5 min read · 0 claps #azure-devops #devops-security #kubernetes-cluster

TCH ECO SOC

AS Ashwini Puranik · MeetCyber

Stop Trusting Docker Images Blindly: Secure Your Container Supply Chain with Sigstore & Cosign

Introduction

Jul 12, 2026 · 1 min read · 10 claps paywalled #docker #docker-security #cybersecurity

TCH ECO

KA Kasiramkompella

Signing Container Images with Cosign

When you pull a container image from a registry, how do you know it actually came from a trusted source? How do you know no one tampered…

Jun 23, 2026 · 11 min read · 0 claps #kubernetes #supply-chain-security #cosign

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PE Peace Dennis · InfoSec Write-ups

Container Image Security (Signing and Scanning with tools like Cosign, Trivy)

I hope you are enjoying the Kubernetes security posts that I am currently sharing. They have honestly been interesting so far. In my last…

Apr 03, 2026 · 3 min read · 0 claps #cosign #trivy #docker

TCH

FR FrunzaSamuel

Setup Cosign via Ansible

Goal

Mar 12, 2026 · 4 min read · 0 claps #devops #cosign #ansible

TCH ECO SOC

HA Hansaka Biyon

Enforcing Signed Container Images in Kubernetes Using Cosign & Kyverno (Helm-based Setup)

Securing the container supply chain has become a baseline requirement for production Kubernetes clusters. As clusters grow and multiple…

Jan 30, 2026 · 5 min read · 62 claps #kubernetes #cosign #kyverno

TCH ECO SOC

AS Ashouryasser

End-to-End Container Supply Chain Security with Sigstore & Cosign

Introduction:  Container images are the backbone of modern cloud-native applications. Securing the container supply chain is critical to…

Dec 13, 2025 · 1 min read · 0 claps #devops #devsecops #cosign

SCI TCH

DE Dejanu Alex

Content Trust: Cosign

Signing and verifying OCI artifacts…like container images

Oct 02, 2025 · 4 min read · 2 claps #cosign #notary #devops

TCH ECO

SH Shashank N

🔍 “Who Signed This? You Did. With Cosign.”

🛑 And Only Signed Golden Images Shall Pass — CI/CD and Kubernetes Enforcement Included

Jun 15, 2025 · 4 min read · 0 claps #container-security #supply-chain-security #kubernetes-security

TCH SPT

AN Anil Goyal

Securing Your Kubernetes Deployments: Docker Image Signing and Verification with Cosign and Kyverno

Overview of Docker Images

Sep 03, 2024 · 6 min read · 10 claps #cosign #kyverno #docker-image