# 04 - Pipeline Architecture

The `deploy.yml` playbook orchestrates the initialization via sequential phases utilizing `include_role` blocks to guarantee procedural execution order. 

## Phase 1: Repositories & Licensing
Evaluates the `pve_enterprise_key` variable. Modifies `/etc/apt/sources.list.d/`, drops the ceph/enterprise configurations as needed, and applies Linstor repository keys.

## Phase 2: System Updates & JS Patches
Forces a `dist-upgrade`. Implements a regex replacement targeting `proxmoxlib.js` to nullify the ExtJS subscription prompt. Installs required DRBD headers and modules. Issues a conditional reboot.

## Phase 3: Proxmox Clustering
Generates 4096-bit RSA keys, constructs a full-mesh authorized_keys trust, and nullifies StrictHostKeyChecking for the defined subnets. Bootstraps Corosync via `pvecm create` on Node 01, followed by asynchronous `pvecm add` operations on worker nodes.

## Phase 4: Linstor/DRBD Configuration (Conditional)
Wrapped in a feature flag (`deploy_linstor`). Executes standard DRBD module loading, configures global LVM filters, sets up High Availability components, and injects backend parameters into `/etc/pve/storage.cfg`.