---
# ------------------------------------------------------------------------------
# Playbook: day2_qwen38_ctx128k.yml
# Purpose:  Bump Qwen3.8-27B-Q4_K_M ctx-size from 32768 to 131072 (128K)
#           on astro-orbiter's production router (port 8002).
#
# What this playbook does:
#   1. Renders the updated llama-server-router-preset.ini.j2 (now with
#      llm_router_qwen38_ctx_size: 131072) to /opt/llama-server-router-preset.ini.
#   2. Restarts llama-server-router.service.
#   3. Verifies the router loads Qwen3.8-27B at ctx=131072 in status.args.
#
# Context:
#   - Empirical VRAM test (t_4455a44c): 131072 ctx = 20,282 MiB Qwen3.8
#     + 558 MiB nomic-embed = ~20.8GB total; ~3.2GB headroom on 24GB RTX 3090.
#     Co-resident with nomic-embed: comfortably fits.
#   - Ryan approved this deployment.
#   - Semaphore SSH gap for astro-orbiter still applies (t_730f9584 / t_33acbb2e);
#     running direct CLI Ansible per standing exception.
#
# Run:
#   cd /home/hermes/git/homelab/ansible
#   env -u ANSIBLE_VAULT_PASSWORD_FILE ansible-playbook \
#     -i inventory.yml \
#     playbooks/day2_qwen38_ctx128k.yml
#
# Task reference: t_441470b9 — War Machine, 2026-08-16
# ------------------------------------------------------------------------------
- name: Bump Qwen3.8-27B ctx-size to 131072 on astro-orbiter
  hosts: astro-orbiter
  become: true
  vars:
    llm_router_preset_enabled: true
    llm_router_qwen38_ctx_size: 131072

  roles:
    - role: llm-inference-multimodel
      tags: [preset, systemd, verify]