Posted inMonitoring
Email Alerts with Grafana: Stop Finding Out About Downtime Too Late
Don't let your dashboards be just for show. A detailed guide on configuring SMTP and Grafana Alerting to receive instant incident notifications via email.
Posted inMonitoring
Monitoring Kubernetes Clusters with Prometheus Operator and Grafana: Automated Metrics Collection
This article provides a detailed guide on deploying Prometheus Operator and Grafana for Kubernetes cluster monitoring. We'll explore how Prometheus Operator automatically collects metrics from Pods and Services, addressing the challenges of dynamic Kubernetes environments, along with practical experience and useful tips.
Posted inUbuntu
Guide to Installing and Managing LXD Containers on Ubuntu for Lightweight Virtualization
LXD is a lightweight virtualization solution that allows you to quickly and resource-efficiently create system containers on Ubuntu. This article will guide you from A to Z on how to install, configure, and manage LXD, including practical tips to maximize this tool, helping you run multiple independent environments without excessive resource consumption.
Posted inDevelopment
Advanced GitLab CI/CD: Optimizing Pipelines and Continuous Deployment Strategies
Optimize your GitLab CI/CD pipeline with DAG, smart caching, and parallel jobs to cut build times from 20 minutes down to 6. Apply Blue-Green and Canary deployment strategies for zero-downtime continuous delivery in real-world projects.
Posted inPython
Mastering Command-Line Interface (CLI) Development with Python and Click: Insights from an IT Engineer
CLIs are powerful assistants for daily IT tasks. This article shares the secrets to building effective command-line tools with Python and Click, alongside practical experience from an IT Engineer.
Posted inLinux
Understanding and Using Linux Capabilities: Fine-Grained Permissions Without Root for Applications
Don't grant full root privileges to your application! This article provides a detailed guide on Linux Capabilities, a flexible permission mechanism that allows applications to perform privileged tasks without needing full root access. Includes a quick guide, in-depth explanations, and practical experiences for DevOps professionals.
Posted inDocker
Docker Registry: Self-hosting a Secure and Efficient Private Registry
Learn to self-host a secure Private Docker Registry with HTTPS and user authentication. A detailed step-by-step guide from setup to optimization, helping you fully control internal Docker images, optimize costs, and enhance project security.
Posted inDocker
Writing Efficient Dockerfiles: Tips for Optimizing Image Size and Build Time
A practical guide to writing efficient Dockerfiles: optimize layer caching, use multi-stage builds to reduce image size, choose the right base image, and apply best practices from real-world DevOps experience.
Posted inMonitoring
Guide to Installing and Configuring Netdata for Effective Real-time System Monitoring
Installing and configuring Netdata is key to effective real-time system monitoring. This article provides a step-by-step guide to setting up Netdata, helping you quickly grasp the operational status of your servers and applications.
Posted inPython
Python and Linux: Useful Sysadmin Scripts for Task Automation
How to effectively handle repetitive tasks on Linux? Python is the answer. This article guides you on writing useful Python scripts to automate system administration work, helping you be more efficient and reduce risks.