Implementing Network Policies
Define and apply Network Policies to control traffic flow between pods for enhanced security and isolation.
Secure Pod Traffic with Policies
In Kubernetes, by default, all pods can communicate with each other. While convenient, this 'flat' network model can be a security risk, especially in multi-service environments.
Network Policies act like firewalls for your pods, allowing you to define rules for how they can communicate both internally and externally.
Why Network Policies Matter
Imagine a backend database pod that only your API service should access. Without Network Policies, any other pod in the cluster could potentially connect to it.
- Isolation: Prevent unauthorized access between services.
- Security: Enforce least privilege, allowing only necessary connections.
- Compliance: Meet security standards by segmenting network traffic.
All lessons in this course
- Kubernetes Ingress & Routing
- Implementing Network Policies
- Service Discovery & DNS in K8s
- TLS Termination and Securing Ingress with HTTPS