# Architecture Overview

## Portfolio Shape

This repository is organized around professional infrastructure work that maps to the CV:

```text
professional-infra/
  linux-operations-automation/
  zabbix-monitoring-incident-response/
  migration-validation-framework/
  log-observability-elk-grafana/

devops-labs/
  future side projects only when ready
```

## Project Roles

### Linux Operations Automation

Operational automation for Linux server work:

- provisioning and baseline configuration,
- patching and hardening,
- service/failure simulation,
- AAP-style LVM filesystem resize workflow with before/after evidence.

### Zabbix Monitoring + Incident Response

Simple checks and OS monitoring:

- Zabbix server/proxy/agent automation structure,
- active and passive proxy design,
- Linux and AIX monitoring templates,
- maintenance and incident response runbooks.

### Migration Validation Framework

Evidence tooling for platform/storage migrations:

- before/after snapshot collection,
- drift detection,
- risk assessment,
- JSON and HTML reports.

### Log Observability ELK/Grafana

Log monitoring and incident evidence:

- Filebeat ingestion,
- Logstash parsing,
- Elasticsearch storage,
- Kibana/Grafana review surfaces,
- incident log simulation.

## Design Principles

- Keep implemented work separate from roadmap ideas.
- Prefer reviewable automation and evidence over overbuilt local labs.
- Make every project independently validatable.
- Treat Zabbix and ELK/Grafana as complementary monitoring tools:
  - Zabbix for simple checks and OS health,
  - ELK/Grafana for logs and observability evidence.