Infrastructure tutorials

Production-grade guides for Linux, servers, security and performance. Copy-paste commands, multi-distro support, written by engineers who run this in production.

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Configure Linux system time synchronization with chrony and NTP hardening

linux
701

Install and configure CockroachDB cluster with high availability and distributed SQL

databases
654

Install and configure PostgreSQL 17 with performance tuning and security hardening

databases
646

Configure network interface monitoring with ICMP ping and connectivity testing

networking
643

Install and configure ArgoCD for GitOps continuous deployment with RBAC and SSL

devops
624

Recently published

Monitor nginx performance with Prometheus and Grafana using nginx-prometheus-exporter

monitoring
1 hour ago

Integrate WireGuard VPN server with LDAP authentication for enterprise user management

security
1 hour ago

Setup Tekton Pipelines 0.62 for Kubernetes CI/CD with security scanning integration

devops
1 hour ago

Configure Loki and Promtail for centralized Docker log aggregation and analysis

monitoring
1 hour ago

Integrate SonarQube with Jenkins pipeline for automated code quality checks

devops
6 hours ago
"vault" × Clear all
security Intermediate

Configure Vault auto-unseal with AWS KMS for high availability secrets management

Set up HashiCorp Vault with AWS KMS auto-unseal to eliminate manual unsealing processes and enable high availability deployments with automatic recovery.

25 min 4 distros 83 views
devops Intermediate

Configure Ansible dynamic inventory for AWS, Azure, and GCP with automated discovery

Set up Ansible dynamic inventory plugins for AWS EC2, Azure VMs, and Google Cloud instances with automated discovery, credential management, and performance optimization across multiple cloud providers.

45 min 4 distros 228 views
devops Intermediate

Configure Ansible dynamic inventory for AWS, Azure, and GCP with automated discovery

Set up Ansible dynamic inventory plugins for AWS EC2, Azure, and Google Cloud Platform to automatically discover and manage cloud resources. This tutorial covers authentication, filtering, and unified inventory management across multiple cloud providers.

45 min 4 distros 171 views
devops Advanced

Implement Kubernetes Pod Security Standards and admission controllers for policy enforcement

Configure Pod Security Standards with baseline and restricted profiles, deploy OPA Gatekeeper admission controller with custom policies, and implement ValidatingAdmissionWebhooks for comprehensive security enforcement in production Kubernetes clusters.

45 min 4 distros 315 views
devops Advanced

Integrate Nexus Repository with Kubernetes and Docker registry authentication

Set up Nexus Repository Manager as a private Docker registry integrated with Kubernetes clusters, configure secure authentication and authorization, and enable automated container image deployment with RBAC controls.

45 min 4 distros 486 views
devops Advanced

Implement Kubernetes network policies with Calico CNI and OPA Gatekeeper for security enforcement

Secure your Kubernetes cluster with Calico CNI network policies and OPA Gatekeeper admission control. This tutorial shows you how to implement pod isolation, policy enforcement, and admission validation for production-grade security.

45 min 4 distros 338 views
linux Beginner

Configure Linux environment variables and PATH management for development workflows

Learn how to properly configure Linux environment variables and manage your PATH for development workflows. This guide covers temporary and persistent variables, user vs system-wide configuration, and troubleshooting common issues across Ubuntu, Debian, AlmaLinux, Rocky Linux, and Fedora.

20 min 6 distros 384 views
devops Advanced

Configure Ansible AWX 24.6 for enterprise automation with RBAC and inventory management

Deploy Ansible AWX 24.6 with Docker Compose, PostgreSQL backend, and enterprise-grade RBAC. Set up dynamic inventory management with multiple sources and implement automated job workflows with notifications for production environments.

45 min 4 distros 312 views
devops Advanced

Configure Consul Connect service mesh with Envoy proxy for secure microservices communication

Set up Consul Connect service mesh with Envoy sidecar proxies to enable secure, encrypted service-to-service communication with mutual TLS authentication, traffic policies, and observability for your microservices architecture.

45 min 4 distros 337 views
security Intermediate

Secure Podman containers with SELinux and AppArmor mandatory access controls

Implement mandatory access controls for Podman containers using SELinux on Red Hat-based systems and AppArmor on Debian-based systems. Learn to configure security policies, monitor violations, and harden container security with production-grade controls.

45 min 4 distros 336 views
devops Intermediate

Implement Ansible testing with Molecule and TestInfra for infrastructure automation validation

Set up comprehensive testing for Ansible playbooks using Molecule framework and TestInfra validation. Create automated test scenarios, integrate with CI/CD pipelines, and ensure infrastructure code reliability in production environments.

45 min 4 distros 430 views
devops Intermediate

Install and configure Nomad for container orchestration with Consul integration

Set up HashiCorp Nomad cluster with Consul service discovery for production container orchestration. Learn job scheduling, ACL security, TLS encryption, and monitoring deployment.

25 min 6 distros 444 views

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