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feat(stt): embeddings dédiés nomic-embed-text sur gpu-01 (:1238) + migration auto
Remplace Qwen3 (chat réutilisé, dim 4096, peu discriminant) par un modèle d'embedding spécialisé nomic-embed-text (dim 768) pour la mémoire long-terme. Ansible (rôle llama_server) : - nouvelle instance optionnelle `llama-embed` (llama_embed_enabled) servant un modèle d'embedding dédié sur :1238, GPU ; télécharge le GGUF si absent. - activée sur gpu-01 (host_vars) : nomic-embed-text-v1.5 f16. STT-server : - STT_EMBED_URL → :1238, STT_EMBED_MODEL → nomic-embed-text (deployment + config). - _ensure_collection détecte le changement de dimension (4096→768) et recrée automatiquement la collection stt-memory (anciens vecteurs incomparables) — pas de drop manuel. Docs : llama_server README, rag.md, stt.md (5d ✅), CLAUDE.md. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013FmcxGsyXZXogiAHQLjnZT
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13 changed files with 161 additions and 31 deletions
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ansible/roles/llama_server/templates/llama-embed.service.j2
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ansible/roles/llama_server/templates/llama-embed.service.j2
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[Unit]
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Description=llama-server embeddings ({{ llama_embed_model_alias }})
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After=network-online.target
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Wants=network-online.target
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[Service]
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Type=simple
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User=root
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Environment=HSA_OVERRIDE_GFX_VERSION={{ hsa_override_gfx_version }}
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Environment=LD_LIBRARY_PATH={{ rocm_path }}/lib
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ExecStart=/opt/llama.cpp/build/bin/llama-server \
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--model {{ llama_embed_model_path }} \
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--host {{ llama_server_host }} \
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--port {{ llama_embed_port }} \
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--ctx-size {{ llama_embed_ctx_size }} \
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--n-gpu-layers {{ llama_embed_n_gpu_layers }} \
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--alias {{ llama_embed_model_alias }} \
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--embeddings \
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--pooling {{ llama_embed_pooling }} \
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--metrics \
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--log-disable
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Restart=on-failure
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RestartSec=10
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[Install]
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WantedBy=multi-user.target
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