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.

monitoring Advanced

Implement Thanos Ruler for distributed alerting and recording rules across Prometheus clusters

Deploy Thanos Ruler to evaluate recording and alerting rules across multiple Prometheus clusters, integrate it with Alertmanager and S3-compatible storage, and run it in HA mode with deduplication.

60 min 4 distros 65 views
networking Advanced

Configure HAProxy with Consul for dynamic service discovery and automatic backend updates

Build a self-updating load balancer by integrating HAProxy with Consul service discovery, consul-template, and health checks so backends register and deregister automatically without manual reloads.

75 min 4 distros 195 views
devops Advanced

Implement Istio multi-cluster canary deployments and traffic splitting

Build a primary-remote Istio multi-cluster mesh with shared trust domain, then run progressive canary rollouts using DestinationRule subsets, weighted VirtualServices and metrics-based promotion across clusters.

90 min 4 distros 252 views
security Advanced

Implement HAProxy WAF integration with ModSecurity 3 for advanced threat protection

Deploy ModSecurity 3 as a Stream Processing Offload Agent in front of HAProxy to inspect HTTP traffic with the OWASP Core Rule Set. This tutorial covers SPOA compilation, SPOE filter configuration, detection versus blocking modes, and production tuning.

75 min 4 distros 218 views
databases Advanced

Configure PostgreSQL 17 SSL encryption and certificate-based authentication

Set up a private CA, issue server and client certificates, enforce TLS 1.2+ with strong ciphers, and configure pg_hba.conf for mutual TLS client certificate authentication in PostgreSQL 17.

45 min 4 distros 249 views
networking Advanced

Configure HAProxy with Consul for dynamic service discovery

Learn how to combine HAProxy, Consul and consul-template to build a self-updating load balancer that discovers backends automatically, reacts to health checks, and reloads without downtime.

50 min 4 distros 393 views
databases Intermediate

Configure PostgreSQL 17 connection pooling with PgBouncer for high availability

Deploy PgBouncer in front of PostgreSQL 17 with session, transaction and statement pooling modes, SCRAM-SHA-256 authentication, keepalived-based HA, and Prometheus monitoring for production workloads.

45 min 4 distros 356 views
devops Advanced

Configure Kubernetes secrets management with External Secrets Operator and HashiCorp Vault

Learn how to deploy External Secrets Operator on Kubernetes, integrate it with HashiCorp Vault using the Kubernetes auth method, and sync secrets via SecretStore and ClusterSecretStore resources with production-grade RBAC and monitoring.

75 min 4 distros 422 views
devops Advanced

Implement Deno microservices architecture with service discovery and load balancing

Build a production-ready Deno microservices architecture with Consul service discovery, HAProxy load balancing, and comprehensive monitoring using Prometheus. This tutorial covers container orchestration, health checks, and automated failover for scalable applications.

45 min 4 distros 901 views
security Advanced

Implement Kubernetes security scanning with Falco and OPA Gatekeeper for runtime protection

Set up comprehensive Kubernetes security with Falco for runtime threat detection and OPA Gatekeeper for admission control policy enforcement. This tutorial covers installation, configuration, and custom security policies.

45 min 4 distros 647 views
networking Advanced

Implement enterprise network QoS with Cisco integration using FRRouting and traffic shaping

Configure enterprise-grade Quality of Service policies with DSCP marking, traffic shaping using tc and HTB, and seamless integration with Cisco equipment through FRRouting BGP and OSPF routing protocols for comprehensive network bandwidth management.

45 min 4 distros 816 views
devops Advanced

Integrate ArgoCD with External Secrets Operator for secure Kubernetes secret management

Set up External Secrets Operator to sync secrets from HashiCorp Vault and AWS Secrets Manager into your ArgoCD GitOps workflow, enabling secure automated secret management across multiple environments without storing sensitive data in Git repositories.

45 min 4 distros 986 views

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