DevOps

Containerization has become a key part of modern development, with Docker leading the way for years. However, Podman provides a robust, secure, and rootless alternative that includes built-in pod support—a feature Docker lacks. In this post, we’ll explore Podman’s unique approach to container and pod management, its Docker compatibility, and how pods enhance local container organization. What is Podman? Podman is an open-source container engine developed by Red Hat, designed to be a secure, daemonless alternative to Docker. With Podman, containers run as isolated processes under user control, enhancing security and reducing potential vulnerabilities associated with Docker’s daemon-based architecture【6†source】. Podman is also OCI (Open Container Initiative) compliant, so it supports Docker images and Dockerfiles, making it easy for Docker users to transition. ...

Docker Swarm: From Newbie to Pro - A Friendly Guide Hey there, fellow tech enthusiast! 👋 Ever found yourself drowning in a sea of containers, wishing for a lifeboat? Well, grab onto Docker Swarm - it’s about to become your new best friend in the world of container orchestration. In this guide, I’ll walk you through my journey with Docker Swarm, from my first fumbling attempts to some pretty cool advanced stuff. So, let’s dive in! ...

Monitoring with Prometheus and Grafana: A Complete Guide Monitoring modern infrastructure and applications is essential for ensuring high performance and reliability. Two popular open-source tools, Prometheus and Grafana, work seamlessly together to help you collect, analyze, and visualize metrics. In this post, we will dive into what these tools are, how they work together, and provide some real-world use cases for monitoring with Prometheus and Grafana. What is Prometheus? Prometheus is an open-source time-series database designed specifically for monitoring systems. It pulls metrics from various endpoints using HTTP and stores them efficiently in a format optimized for metrics data. It supports querying using a specialized language called PromQL and has a built-in alerting mechanism via AlertManager. Prometheus excels in scaling, dynamic service discovery, and reliability. ...

What is Nginx Proxy Manager? Nginx Proxy Manager (NPM) is a web-based interface for managing Nginx reverse proxy servers. It simplifies the process of setting up and managing proxy hosts, SSL certificates, redirections, and access control. NPM is particularly user-friendly for those who may not be familiar with configuring Nginx manually, offering a graphical interface to handle complex configurations easily. Key Features of Nginx Proxy Manager Proxy Hosts: Create and manage multiple proxy hosts for routing traffic. SSL Certificates: Easily obtain and manage Let’s Encrypt SSL certificates. Redirection: Set up HTTP to HTTPS redirection and custom domain redirections. Access Lists: Control access to certain services based on IP addresses. Websocket Support: Handle WebSocket connections with ease. User-Friendly Interface: Intuitive UI for managing your proxies and settings. Installing Nginx Proxy Manager Requirements A server running Docker and Docker Compose. Basic knowledge of terminal commands. A domain name pointing to your server’s IP address. Step-by-Step Installation Install Docker and Docker Compose: If not already installed, use the following commands to install Docker on your server: ...