Docker – Page 2 – ITFROMZERO

Dockerize Elixir Phoenix: Multi-stage Build, OTP Releases, and Production-Ready Erlang Clustering

By admin July 16, 2026

A detailed guide to Dockerizing Elixir Phoenix with an optimized multi-stage build that reduces image size from 1.2GB to 85MB, production-ready OTP Releases configuration, and automatic Erlang clustering via libcluster DNS in Docker Compose. Includes a real-world Dockerfile, clustering configuration, and a deploy script with safe database migrations.

Docker

Securing Docker Containers with Authentik Forward Auth: Add SSO and MFA in 10 Minutes

By admin July 15, 2026

Turn insecure Docker applications into a secure system with SSO and MFA by using Authentik as Forward Auth via Traefik.

Docker

Configuring IPv6 for Docker Containers: A Step-by-Step Dual-Stack Guide

By admin July 13, 2026

A guide to configuring IPv6 for Docker containers, from enabling daemon.json to creating dual-stack networks in Docker Compose. Covers IP range management, exposing containers externally via IPv6, and practical debugging tips for developers.

Monitoring

Centralized S.M.A.R.T Management: Monitoring Dozens of Hard Drives with Scrutiny

By admin July 12, 2026

Centralized hard drive health management has never been easier. Discover how to install Scrutiny to monitor S.M.A.R.T metrics via a professional web interface.

Docker

Vector: A Ultra-Lightweight Docker Logging Solution to Replace Logstash

By admin July 12, 2026

A detailed guide on using Vector for Docker container log collection and processing. A lightweight Rust-based Logstash alternative to save RAM and optimize DevOps performance.

Database

Apache Pinot: A Step-by-Step Guide to Setting Up a Real-Time OLAP Database for Sub-100ms Analytics Dashboards

By admin July 8, 2026

Apache Pinot is a distributed OLAP datastore that enables analytics queries across billions of rows with sub-100ms latency, used by LinkedIn and Uber for user-facing dashboards. This guide walks you through step-by-step installation with Docker, configuring schemas and star-tree indexes, loading CSV data, and monitoring cluster health.

Linux

A Practical Guide to jq on Linux: Filtering and Processing JSON from APIs in the Terminal

By admin July 8, 2026

When you're debugging production at 2 AM staring at an unreadable wall of JSON in your logs, jq saves you more time than any other approach. This guide compares jq against grep and Python for handling JSON in the terminal, covering everything from basic syntax to filtering Docker containers and Kubernetes API responses in practice.

Database

YugabyteDB: A Guide to Setting Up PostgreSQL-Compatible Distributed SQL with Auto-Sharding and Automatic Fault Tolerance

By admin July 8, 2026

YugabyteDB is a PostgreSQL-compatible distributed SQL database with auto-sharding, automatic fault tolerance, and multi-region deployment — no changes to your SQL or ORM required. This guide covers installation from a single-node Docker setup to a real 3-node cluster, along with practical tips for working with distributed databases.

Virtualization

How to Install and Use Lima on macOS: Create Lightweight Linux VMs with QEMU and VZ Framework as a Free Docker Desktop Alternative

By admin July 6, 2026

Lima is an open-source tool for creating Linux virtual machines on macOS using QEMU or Apple's VZ Framework, replacing Docker Desktop completely for free. This article compares available solutions, walks through Lima installation, Docker integration, and managing multiple VMs from the command line.

Monitoring

Monitoring Traefik Reverse Proxy with Prometheus and Grafana: Tracking Request Rate, Error Rate, and Latency

By admin July 6, 2026

A guide to enabling the Prometheus metrics endpoint on Traefik v3, setting up Docker Compose for the full monitoring stack, and building a Grafana dashboard with PromQL queries to track request rate, error rate, and P95 latency per service. Includes alert rules for automatic notifications when issues arise.