Architect Overview

20 labs · Ubuntu 22.04 · Docker-verified

Design and operate enterprise Linux infrastructure. Prerequisites: Linux Advanced.

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Labs

#	Lab	Topics
01	High Availability & Pacemaker/Corosync	HA concepts, CRM, quorum, fencing
02	HAProxy — Load Balancing	frontends, backends, health checks, ACLs
03	Keepalived — VRRP Failover	VRRP, virtual IPs, MASTER/BACKUP
04	Linux Clustering & Shared Storage	GFS2, DRBD, DLM, fencing devices
05	Capstone — HA Two-Node Cluster	full Pacemaker + HAProxy cluster runbook
06	Ansible Foundations	inventory, ad-hoc, first playbook
07	Ansible Roles & Galaxy	role structure, dependencies, galaxy
08	Ansible Variables, Templates & Handlers	Jinja2, handlers, register, when
09	Ansible Vault — Secrets Management	vault create/encrypt, vault IDs, CI/CD
10	Ansible Capstone — Server Provisioning	full 6-play provisioning playbook
11	Prometheus — Metrics & Alerting	PromQL, alertmanager, recording rules
12	Grafana — Dashboards	data sources, panels, provisioning
13	Elasticsearch & Kibana — Log Indexing	indices, query DSL, ILM
14	Logstash & Filebeat — Log Pipeline	grok, mutate, filebeat modules
15	Capstone — Full Observability Stack	Prometheus + ELK + SLO/error budget
16	CIS Benchmark Hardening	Lynis audit, Level 1/2, scoring
17	OpenSCAP Compliance Automation	XCCDF, OVAL, HTML reports, remediation
18	Enterprise Audit & Reporting	auditd rules, AIDE integrity, reports
19	Large-Scale Patch Management	unattended-upgrades, canary deployment
20	Capstone — Enterprise Hardened HA Server	all 4 levels combined, JSON scoring

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Start here → Lab 01: High Availability & Pacemaker/Corosync