Posted inDocker
Dockerizing Python with Poetry: A Smooth Solution for Dependencies and Build Speed
Forget Pip! Here's how to Dockerize Python apps using Poetry to slash image sizes by 80% and achieve lightning-fast builds with Layer Caching.
Posted inLinux
OOM Killer: Why Linux Kills Your MySQL and How to Protect It
When a Linux application shuts down unexpectedly, the OOM Killer is often to blame. Learn how to read dmesg logs, understand the oom_score metric, and protect MySQL and Redis from being terminated by the OS.
Posted inVirtualization
Mastering HashiCorp Packer: Automating Proxmox and VMware VM Template Creation
Learn how to use HashiCorp Packer to automate the Virtual Machine (VM) template creation process on Proxmox and VMware. Save 90% of setup time for DevOps and SysAdmins.
Posted inDocker
Stop Installing Terraform and Ansible Directly: Use Docker CLI to Keep Your Host Clean
Stop installing Terraform or Ansible directly! Discover how to use Docker for all your CLI tools to keep your host system clean and eliminate version conflicts once and for all.
Posted inVirtualization
Automating Proxmox with Terraform: From Manual ‘Click-ops’ to Professional IaC
Switch from Click-ops to Infrastructure as Code (IaC) with Terraform on Proxmox. A detailed guide to automating VM creation, saving time and reducing configuration errors.
Posted inDatabase
Mastering Logical Replication in PostgreSQL: Flexible and Practical Data Sync
PostgreSQL Logical Replication enables selective data sync and minimizes downtime. This guide covers configuration steps and fixes for Primary Key and Sequence issues based on real-world experience.
Posted inDevelopment
Automating Dependencies with Renovate: Don’t Let Manual Updates Slow You Down
Stop wasting time on manual library updates. A detailed guide on using Renovate Bot to automate dependencies and effectively reduce security risks.
Posted inDocker
Harbor Installation Guide: Building a Professional Private Registry for DevOps
Bypass Docker Hub limits by installing Harbor Private Registry. A detailed guide from system configuration and Trivy scanning to secure image management.
Posted inMonitoring
How to Never Forget SSL and Domain Renewals Again with Prometheus Blackbox Exporter
Forgetting SSL renewals is a basic mistake that damages your reputation. Here is a detailed guide to automating monitoring and alerts 15 days in advance using Prometheus Blackbox Exporter.
Posted inDocker
How to Safely Expose Docker Containers to the Internet via Cloudflare Tunnel (No Port Forwarding)
Forget about Port Forwarding and DDNS worries. A detailed guide on using Cloudflare Tunnel to safely expose Docker containers, hide origin IPs, and get automatic SSL.