Initial CV-aligned infrastructure portfolio

Rework portfolio around Linux operations, Zabbix monitoring, migration validation, and ELK/Grafana log observability. Add AAP-style LVM resize workflow, Zabbix server/proxy/agent automation assets, Linux/AIX monitoring templates, and updated validation CI.
2026-05-04 17:37:24 +00:00
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+# Base Provision Role
+
+Provision basic infrastructure on enterprise nodes with security hardening.
+
+## Features
+
+- **Idempotent**: All tasks use proper idempotency markers (`changed_when`, `failed_when`)
+- **Handlers**: SSH and fail2ban restarts use handlers instead of direct service calls
+- **Variables**: All configuration in `defaults/main.yml` - no hardcoding
+- **Validation**: Pre-flight checks for system requirements
+- **Firewall**: UFW firewall configuration with configurable rules
+- **SSH Security**: Root login disabled, password auth disabled, key-based auth only
+
+## Role Variables
+
+See `defaults/main.yml` for all available variables.
+
+### Key Variables
+
+- `node_timezone`: System timezone (default: UTC)
+- `admin_user`: Admin username for infrastructure access
+- `ssh_port`: SSH service port (default: 22)
+- `base_packages`: List of base packages to install
+- `firewall_enabled`: Enable UFW firewall (default: true)
+- `firewall_allowed_tcp_ports`: Allowed TCP ports for firewall
+
+## Secret Variables
+
+This portfolio demo does not require secrets for offline validation. If you extend it with real passwords or keys, copy `group_vars/vault.example.yml` into an encrypted Ansible Vault file and keep real values out of normal git history.
+
+## Usage
+
+```yaml
+- role: base_provision
+  vars:
+    node_timezone: "Europe/Warsaw"
+    firewall_enabled: true
+```
+
+## Handlers
+
+- `restart sshd`: Restarts SSH service (triggered by config changes)
+- `restart fail2ban`: Restarts fail2ban service (triggered by config changes)
+
+## Tags
+
+- `provision`: All provisioning tasks
+- `base`: Base provision role tasks