Best Docker Kubernetes Online Course - Docker and Kubernetes Training
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Docker Content Trust (DCT) and Kubernetes Network Policies Ensuring Security in Containerized Environments +91-7032290546 www.visualpath.in
Introduction Objective: Understand how Docker Content Trust and Kubernetes Network Policies help enhance container security. Agenda: What is Docker Content Trust? Benefits of DCT What are Kubernetes Network Policies? Use cases and examples +91-7032290546 www.visualpath.in
What is Docker Content Trust (DCT)? Definition: Docker Content Trust enables digital signature verification for Docker images. How it works: o Uses Notary for signing and verification o Ensures the integrity and publisher authenticity of images Key Concept: Only signed and verified images can be pulled and deployed +91-7032290546 www.visualpath.in
Benefits of Docker Content Trust Prevents the use of tampered or unauthorized images Enhances CI/CD pipeline security Enables trust in image publishers Compliance support for secure deployments +91-7032290546 www.visualpath.in
Enabling Docker Content Trust Command:export DOCKER_CONTENT_TRUST=1 Behavior: o Enforces verification on pull, push, and build o Blocks unsigned images by default Note: It requires signed images to function properly +91-7032290546 www.visualpath.in
What are Kubernetes Network Policies? Definition: Kubernetes Network Policies are rules that control traffic flow at the IP address or port level between pods. Purpose: Improve cluster security by controlling communication between workloads Scope: o Ingress (incoming traffic) o Egress (outgoing traffic) +91-7032290546 www.visualpath.in
How Kubernetes Network Policies Work Applied to pods using labels Define allowed sources/destinations using selectors Implemented via network plugins (e.g., Calico, Cilium) Example YAML snippet (brief and non- code explanation) +91-7032290546 www.visualpath.in
Use Cases & Best Practices DCT Use Cases: Secure software supply chain o Prevent rogue image deployment o Network Policy Use Cases: Isolate sensitive pods o Implement zero-trust architecture o Best Practices: Always sign images o Start with default deny rules for Kubernetes policies o +91-7032290546 www.visualpath.in
Conclusion & Takeaways Docker Content Trust secures image authenticity Kubernetes Network Policies protect internal communication Combine both for a stronger container security posture Final Tip: Regularly audit and test your policies and image signing setup +91-7032290546 www.visualpath.in
For More Information About Docker and Kubernetes Address:- Flat no: 205, 2nd Floor, Nilagiri Block, Aditya Enclave, Ameerpet, Hyderabad-16 Ph. No: +91-998997107 Visit: www.visualpath.in E-Mail: online@visualpath.in +91-7032290546 www.visualpath.in
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