124 lines
2.8 KiB
YAML
124 lines
2.8 KiB
YAML
---
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# cezen-backend role: installs the Nexus One AI FastAPI management API
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- name: Install system Python deps
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apt:
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name:
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- python3-pip
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- python3-venv
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- python3.11
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- python3.11-venv
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- libmupdf-dev # required by pymupdf (Document Intelligence)
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- mupdf-tools
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- ffmpeg # required by faster-whisper audio transcription
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state: present
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update_cache: yes
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- name: Create backend directory
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file:
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path: /opt/cezen/backend
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state: directory
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owner: "{{ cezen_user }}"
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group: "{{ cezen_user }}"
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mode: "0755"
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- name: Create data directory (JWT secret + SQLite DB)
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file:
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path: /opt/cezen/data
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state: directory
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owner: "{{ cezen_user }}"
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group: "{{ cezen_user }}"
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mode: "0750"
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- name: Copy FastAPI application
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copy:
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src: main.py
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dest: /opt/cezen/backend/main.py
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owner: "{{ cezen_user }}"
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group: "{{ cezen_user }}"
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mode: "0644"
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notify: Restart cezen-api
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- name: Copy QLoRA training runner
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copy:
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src: train_qlora.py
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dest: /opt/cezen/backend/train_qlora.py
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owner: "{{ cezen_user }}"
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group: "{{ cezen_user }}"
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mode: "0755"
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- name: Copy RAG ingest worker
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copy:
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src: rag_ingest.py
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dest: /opt/cezen/backend/rag_ingest.py
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owner: "{{ cezen_user }}"
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group: "{{ cezen_user }}"
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mode: "0755"
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notify: Restart cezen-api
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- name: Copy requirements.txt
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copy:
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src: requirements.txt
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dest: /opt/cezen/backend/requirements.txt
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owner: "{{ cezen_user }}"
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group: "{{ cezen_user }}"
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mode: "0644"
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- name: Create Python virtual environment (Python 3.11)
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become_user: "{{ cezen_user }}"
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command: python3.11 -m venv /opt/cezen/backend/venv
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args:
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creates: /opt/cezen/backend/venv/bin/activate
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- name: Install Python dependencies
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become_user: "{{ cezen_user }}"
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pip:
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requirements: /opt/cezen/backend/requirements.txt
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virtualenv: /opt/cezen/backend/venv
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notify: Restart cezen-api
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- name: Install Pro/Max fine-tuning dependencies
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become_user: "{{ cezen_user }}"
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pip:
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name:
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- torch
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- transformers
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- datasets
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- peft
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- bitsandbytes
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- accelerate
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- trl
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- sentencepiece
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virtualenv: /opt/cezen/backend/venv
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retries: 3
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delay: 15
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when: (tier | default('basic')) in ['pro', 'max']
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- name: Install Max multi-GPU training dependencies
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become_user: "{{ cezen_user }}"
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pip:
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name:
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- deepspeed
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virtualenv: /opt/cezen/backend/venv
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retries: 3
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delay: 15
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when: (tier | default('basic')) == 'max'
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- name: Install systemd service unit
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copy:
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src: cezen-api.service
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dest: /etc/systemd/system/cezen-api.service
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owner: root
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group: root
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mode: "0644"
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notify:
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- Reload systemd
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- Restart cezen-api
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- name: Enable and start cezen-api service
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systemd:
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name: cezen-api
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enabled: yes
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state: started
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daemon_reload: yes
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