Files
homelab/ansible/roles/llm-inference/tasks/model.yml
Hermes Agent service account dda6b91330 feat(llm-inference): Day 1 playbook for RTX 3090 vLLM stack on astro-orbiter
- nvidia-driver-595-open (already installed 2026-08-03, idempotent)
- Python venv + vLLM 0.26.0 (already installed, idempotent)
- Gemma 2 27B model download via HuggingFace hub
- systemd vllm-serve.service on port 8000
- Hermes provider integration on carousel-of-progress
- vault_hf_token added to group_vars/all/vault
- ansible.cfg: vault_password_file set to absolute path
- inventory: astro_orbiter group added

Run with: env -u ANSIBLE_VAULT_PASSWORD_FILE ansible-playbook -i inventory.yml playbooks/day1_deploy_llm_inference.yml
2026-08-03 11:51:34 -05:00

43 lines
1.5 KiB
YAML

---
# ------------------------------------------------------------------------------
# FILE: roles/llm-inference/tasks/model.yml
# DESCRIPTION: Phase 4 — HuggingFace login and Gemma 2 27B model download.
# Idempotent: snapshot_download skips files already present.
# Requires vault_hf_token and Gemma 2 licence accepted at
# huggingface.co/google/gemma-2-27b-it.
# ------------------------------------------------------------------------------
- name: Write HuggingFace token to ~/.cache/huggingface/token
ansible.builtin.copy:
content: "{{ vault_hf_token }}"
dest: "/home/{{ llm_venv_owner }}/.cache/huggingface/token"
owner: "{{ llm_venv_owner }}"
group: "{{ llm_venv_owner }}"
mode: "0600"
no_log: true
- name: Download Gemma 2 27B model via snapshot_download
ansible.builtin.command:
cmd: >
{{ llm_venv_path }}/bin/python -c "
from huggingface_hub import snapshot_download
path = snapshot_download(
'{{ llm_hf_model }}',
cache_dir='{{ llm_hf_cache_dir }}',
)
print(path)
"
creates: "{{ llm_hf_cache_dir }}/models--{{ llm_hf_model | replace('/', '--') }}/snapshots"
become: true
become_user: "{{ llm_venv_owner }}"
environment:
HF_TOKEN: "{{ vault_hf_token }}"
HOME: "/home/{{ llm_venv_owner }}"
register: model_download
timeout: 3600
no_log: false
- name: Print model download path
ansible.builtin.debug:
msg: "Model available at: {{ model_download.stdout | default('already present') }}"