Kubernetes Online Training - Docker Online Training
Master Kubernetes with Visualpathu2019s Docker Kubernetes Online training program. Build and manage scalable, self-healing clusters with real-time labs. Join our Docker and Kubernetes Training in Hyderabad, open to global learners. Ideal for tech pr
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Troubleshooting Kubernetes Network Issues A Comprehensive Guide +91-7032290546 www.visualpath.in
Understanding Kubernetes Networking Kubernetes relies on networking for pod-to-pod communication, services, and external traffic. Key Components: o Pod Networking (Unique IP per pod) o Service Networking (Abstracts pod communication) o Ingress & Egress (Traffic entering or leaving the cluster) +91-7032290546 www.visualpath.in
Diagnosing Pod-to-Pod Communication Verify Pod IPs: Use kubectl get pods -o wide to check pod IPs. Connectivity Tests: Use ping or curl within pods to check if they can reach other pods. Network Policies: Ensure that network policies aren't blocking communication. +91-7032290546 www.visualpath.in
Examining Services and Endpoints Service Configuration: Use kubectl describe svc <service-name> to verify service details. Endpoints: Ensure services are correctly linked to pods via kubectl get endpoints <service-name>. DNS Issues: Verify CoreDNS logs to ensure DNS resolution is working. +91-7032290546 www.visualpath.in
Troubleshooting Ingress & Egress Traffic Ingress Configuration: Ensure ingress controllers are properly set up. Egress Traffic: Review network policies related to traffic leaving the cluster. Check Logs: Review logs of ingress controllers and egress configurations. +91-7032290546 www.visualpath.in
Inspecting the CNI (Container Network Interface) CNI Plugins: Ensure the CNI plugin (e.g., Calico, Flannel) is running properly. Configuration Files: Verify CNI configuration in /etc/cni/net.d/. Logs: Check CNI-related logs for errors or network issues. +91-7032290546 www.visualpath.in
Resource Constraints & Node Pressure Monitor Resource Usage: Use kubectl top pods or kubectl top nodes to track CPU and memory. Node Resources: Ensure nodes have enough available resources to run networking components smoothly. Throttling: Check for throttling or over- commitment on nodes. +91-7032290546 www.visualpath.in
Reviewing Cluster Logs Kubelet Logs: Check journalctl -u kubelet for pod lifecycle issues. API Server Logs: Review control plane logs for issues in service or pod communication. CoreDNS Logs: Check logs for DNS resolution problems. +91-7032290546 www.visualpath.in
Network Performance & Latency Monitoring Tools: Use tools like Weave Scope, Prometheus, and Grafana to monitor network performance. Latency & Packet Loss: Investigate any issues related to high latency, packet loss, or bandwidth throttling. Troubleshoot Performance: Visualize traffic and pinpoint performance bottlenecks. +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
Thank You Thank You Visit: www.visualpath.in +91-7032290546 www.visualpath.in
