Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Backing up and restoring Kubernetes clusters is a critical task for maintaining the availability and integrity of your applications and data. Below, I’ll outline the key components to back up, tools you can use, and the steps to perform backup and restore operations. Key Components to Back Up etcd Database Stores the cluster state, including […]
Backing up and restoring Kubernetes configurations is a critical task to ensure business continuity and disaster recovery. Here’s how you can approach it: Backup Kubernetes Configurations Kubernetes configurations are primarily stored in etcd, the key-value store that Kubernetes uses as its backing store. Additionally, you may want to back up application manifests, custom resource definitions […]
Troubleshooting IT infrastructure application compatibility issues requires a systematic approach to identify the root cause and resolve the conflict. Here’s a step-by-step guide tailored for an IT environment that includes datacenters, storage, backup systems, servers, virtualization, operating systems, Kubernetes, AI workloads, GPU graphic cards, and other components: Step 1: Identify the Scope of the Issue […]
Configuring Kubernetes Network Policies for pod-to-pod communication involves defining rules that control the traffic flow between pods. Network Policies are a Kubernetes resource that helps secure your cluster by limiting communication between pods based on labels, namespaces, and IP blocks. Here’s a step-by-step guide: 1. Prerequisites Network plugin: Ensure your Kubernetes cluster is using a […]
Troubleshooting firewall rule conflicts in IT infrastructure requires a systematic approach to identify and resolve the issue effectively. Here’s a step-by-step guide: 1. Understand the Environment Review Firewall Placement: Identify where the firewall is located (datacenter edge, internal zones, Kubernetes cluster, etc.). Document Dependencies: List the systems, servers, and applications affected by the firewall rules. […]
Managing Kubernetes secrets effectively is crucial to maintaining the security and integrity of your applications and infrastructure. Here are the best practices for handling Kubernetes secrets: 1. Use Kubernetes Secrets Object Store sensitive information like passwords, API keys, and certificates in Kubernetes Secret objects rather than embedding them directly in configurations or environment variables. Secrets […]