Files
homelab/ansible/roles/llm-inference-multimodel/handlers/main.yml
Hermes Agent service account a47b29d49f feat(llm-router): switch to --models-preset mode; add Phi-3.5-mini-instruct-8bit alias (t_9adf0889)
- Add templates/llama-server-router-preset.ini.j2: defines all 3 router GGUFs
  (Qwen3.6-35B, Phi-3.5-mini-Q8_0, Meta-Llama-3.1-8B) with explicit ctx-size,
  gpu-layers, cache settings carried over from --models-dir baseline. The Phi
  entry adds alias=Phi-3.5-mini-instruct-8bit (Ryan's aux.title_generation target).

- Update templates/llama-server-router.service.j2: Jinja2 conditional emits
  --models-preset <path> when llm_router_preset_enabled=true, otherwise
  --models-dir (backward compat, default unchanged).

- Add tasks/preset.yml: deploy preset INI, restart router on change, verify
  both Phi-3.5-mini-instruct-Q8_0 (primary) and Phi-3.5-mini-instruct-8bit
  (alias) appear in /v1/models, plus Qwen and Llama IDs unchanged.

- Update defaults/main.yml: add llm_router_preset_enabled (default false) and
  llm_router_preset_path=/opt/llama-server-router-preset.ini.

- Update tasks/main.yml: import preset.yml as Phase P (gated, no-op by default).
- Update handlers/main.yml: add 'restart router' handler for preset changes.
- Add playbooks/day2_add_phi_alias.yml: single-command deployment.

GH #22364 note: --models-preset mode creates an extra 'default' entry in
/v1/models — cosmetic, does not affect model selection by name.
2026-08-12 22:58:12 -05:00

47 lines
2.3 KiB
YAML

---
# ------------------------------------------------------------------------------
# FILE: roles/llm-inference-multimodel/handlers/main.yml
# DESCRIPTION: Only a daemon-reload handler lives here now (harmless, no
# process impact). Per-service restart/start decisions are made
# explicitly in tasks/verify.yml (Phase 4), keyed off the
# per-unit `changed` result registered in tasks/systemd.yml
# (Phase 2) — NEVER combined, so a content change to one unit
# template still never restarts the other (plan §2/§6
# requirement: independent restart/rollback).
#
# BUGFIX: this file used to also define "restart
# llama-server-aux" / "restart llama-server-toolcall" handlers,
# notified from Phase 2's template tasks and fired there via
# `meta: flush_handlers` — causing both live services to
# restart during Phase 2, before Phase 3/4 had run. See
# tasks/systemd.yml for the full writeup. Restart logic moved
# to tasks/verify.yml so it only ever fires in Phase 4.
# ------------------------------------------------------------------------------
- name: Reload systemd
ansible.builtin.systemd:
daemon_reload: true
become: true
listen: "reload systemd"
# Restart the llama.cpp router so it re-discovers /opt/models after a NEW GGUF
# is staged. NOTIFIED ONLY from tasks/stage_model.yml when an actual download
# (or permission correction) occurs — a normal idempotent re-run that finds the
# files already correct will NOT fire this, so the live router is left
# untouched. Safe on the idle GPU (router holds no resident model when all
# entries are "unloaded"; restart is sub-second).
- name: restart llama-server-router on new GGUF
ansible.builtin.systemd:
name: "{{ llm_router_service_name | default('llama-server-router') }}"
state: restarted
become: true
# Restart handler for preset mode changes (notified by tasks/preset.yml when
# the preset INI or unit file changes). Distinct from "restart llama-server-router
# on new GGUF" so each change path can notify independently.
- name: restart router
ansible.builtin.systemd:
name: "{{ llm_router_service_name | default('llama-server-router') }}"
state: restarted
become: true