249 lines
9.2 KiB
Nix
249 lines
9.2 KiB
Nix
{ self
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, lib
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, testers
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, fetchzip
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, fetchurl
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, writers
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, symlinkJoin
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, jq
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}:
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let
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common-config = { config, ... }: {
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imports = [ ./module.nix ];
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services.local-ai = {
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enable = true;
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package = self;
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threads = config.virtualisation.cores;
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};
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};
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inherit (self.lib) genModels;
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in
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{
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version = testers.testVersion {
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package = self;
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version = "v" + self.version;
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command = "local-ai --help";
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};
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health = testers.runNixOSTest ({ config, ... }: {
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name = self.name + "-health";
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nodes.machine = common-config;
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testScript =
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let
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port = "8080";
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in
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''
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machine.wait_for_open_port(${port})
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machine.succeed("curl -f http://localhost:${port}/readyz")
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'';
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});
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# https://localai.io/features/embeddings/#bert-embeddings
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bert =
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let
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model = "embedding";
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model-configs.${model} = {
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# Note: q4_0 and q4_1 models can not be loaded
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parameters.model = fetchurl {
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url = "https://huggingface.co/skeskinen/ggml/resolve/main/all-MiniLM-L6-v2/ggml-model-f16.bin";
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sha256 = "9c195b2453a4fef60a4f6be3a88a39211366214df6498a4fe4885c9e22314f50";
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};
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backend = "bert-embeddings";
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embeddings = true;
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};
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models = genModels model-configs;
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requests.request = {
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inherit model;
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input = "Your text string goes here";
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};
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in
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testers.runNixOSTest {
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name = self.name + "-bert";
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nodes.machine = {
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imports = [ common-config ];
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virtualisation.cores = 2;
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virtualisation.memorySize = 2048;
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services.local-ai.models = models;
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};
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passthru = { inherit models requests; };
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testScript =
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let
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port = "8080";
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in
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''
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machine.wait_for_open_port(${port})
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machine.succeed("curl -f http://localhost:${port}/readyz")
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machine.succeed("curl -f http://localhost:${port}/v1/models --output models.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .data[].id == \"${model}\"' models.json")
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machine.succeed("curl -f http://localhost:${port}/embeddings --json @${writers.writeJSON "request.json" requests.request} --output embeddings.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .model == \"${model}\"' embeddings.json")
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'';
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};
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} // lib.optionalAttrs (!self.features.with_cublas && !self.features.with_clblas) {
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# https://localai.io/docs/getting-started/manual/
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llama =
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let
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model = "gpt-3.5-turbo";
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# https://localai.io/advanced/#full-config-model-file-reference
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model-configs.${model} = rec {
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context_size = 8192;
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parameters = {
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# https://huggingface.co/lmstudio-community/Meta-Llama-3-8B-Instruct-GGUF
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# https://ai.meta.com/blog/meta-llama-3/
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model = fetchurl {
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url = "https://huggingface.co/lmstudio-community/Meta-Llama-3-8B-Instruct-GGUF/resolve/main/Meta-Llama-3-8B-Instruct-Q4_K_M.gguf";
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sha256 = "ab9e4eec7e80892fd78f74d9a15d0299f1e22121cea44efd68a7a02a3fe9a1da";
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};
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# defaults from:
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# https://deepinfra.com/meta-llama/Meta-Llama-3-8B-Instruct
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temperature = 0.7;
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top_p = 0.9;
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top_k = 0;
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# following parameter leads to outputs like: !!!!!!!!!!!!!!!!!!!
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#repeat_penalty = 1;
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presence_penalty = 0;
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frequency_penalty = 0;
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max_tokens = 100;
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};
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stopwords = [ "<|eot_id|>" ];
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template = {
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# Templates implement following specifications
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# https://github.com/meta-llama/llama3/tree/main?tab=readme-ov-file#instruction-tuned-models
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# ... and are insprired by:
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# https://github.com/mudler/LocalAI/blob/master/embedded/models/llama3-instruct.yaml
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#
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# The rules for template evaluateion are defined here:
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# https://pkg.go.dev/text/template
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chat_message = ''
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<|start_header_id|>{{.RoleName}}<|end_header_id|>
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{{.Content}}${builtins.head stopwords}'';
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chat = "<|begin_of_text|>{{.Input}}<|start_header_id|>assistant<|end_header_id|>";
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};
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};
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models = genModels model-configs;
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requests = {
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# https://localai.io/features/text-generation/#chat-completions
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chat-completions = {
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inherit model;
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messages = [{ role = "user"; content = "1 + 2 = ?"; }];
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};
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# https://localai.io/features/text-generation/#edit-completions
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edit-completions = {
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inherit model;
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instruction = "rephrase";
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input = "Black cat jumped out of the window";
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max_tokens = 50;
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};
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# https://localai.io/features/text-generation/#completions
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completions = {
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inherit model;
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prompt = "A long time ago in a galaxy far, far away";
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};
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};
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in
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testers.runNixOSTest {
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name = self.name + "-llama";
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nodes.machine = {
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imports = [ common-config ];
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virtualisation.cores = 4;
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virtualisation.memorySize = 8192;
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services.local-ai.models = models;
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};
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passthru = { inherit models requests; };
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testScript =
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let
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port = "8080";
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in
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''
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machine.wait_for_open_port(${port})
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machine.succeed("curl -f http://localhost:${port}/readyz")
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machine.succeed("curl -f http://localhost:${port}/v1/models --output models.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .data[].id == \"${model}\"' models.json")
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machine.succeed("curl -f http://localhost:${port}/v1/chat/completions --json @${writers.writeJSON "request-chat-completions.json" requests.chat-completions} --output chat-completions.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .object == \"chat.completion\"' chat-completions.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .choices | first.message.content | tonumber == 3' chat-completions.json")
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machine.succeed("curl -f http://localhost:${port}/v1/edits --json @${writers.writeJSON "request-edit-completions.json" requests.edit-completions} --output edit-completions.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .object == \"edit\"' edit-completions.json")
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machine.succeed("${jq}/bin/jq --exit-status '.usage.completion_tokens | debug == ${toString requests.edit-completions.max_tokens}' edit-completions.json")
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machine.succeed("curl -f http://localhost:${port}/v1/completions --json @${writers.writeJSON "request-completions.json" requests.completions} --output completions.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .object ==\"text_completion\"' completions.json")
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machine.succeed("${jq}/bin/jq --exit-status '.usage.completion_tokens | debug == ${toString model-configs.${model}.parameters.max_tokens}' completions.json")
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'';
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};
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} // lib.optionalAttrs (self.features.with_tts && !self.features.with_cublas && !self.features.with_clblas) {
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# https://localai.io/features/text-to-audio/#piper
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tts =
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let
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model-stt = "whisper-en";
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model-configs.${model-stt} = {
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backend = "whisper";
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parameters.model = fetchurl {
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url = "https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-tiny.en-q5_1.bin";
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hash = "sha256-x3xXZvHO8JtrfUfyG1Rsvd1BV4hrO11tT3CekeZsfCs=";
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};
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};
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model-tts = "piper-en";
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model-configs.${model-tts} = {
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backend = "piper";
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parameters.model = "en-us-danny-low.onnx";
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};
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models =
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let
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models = genModels model-configs;
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in
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symlinkJoin {
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inherit (models) name;
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paths = [
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models
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(fetchzip {
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url = "https://github.com/rhasspy/piper/releases/download/v0.0.2/voice-en-us-danny-low.tar.gz";
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hash = "sha256-5wf+6H5HeQY0qgdqnAG1vSqtjIFM9lXH53OgouuPm0M=";
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stripRoot = false;
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})
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];
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};
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requests.request = {
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model = model-tts;
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input = "Hello, how are you?";
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};
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in
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testers.runNixOSTest {
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name = self.name + "-tts";
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nodes.machine = {
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imports = [ common-config ];
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virtualisation.cores = 2;
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services.local-ai.models = models;
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};
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passthru = { inherit models requests; };
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testScript =
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let
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port = "8080";
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in
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''
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machine.wait_for_open_port(${port})
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machine.succeed("curl -f http://localhost:${port}/readyz")
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machine.succeed("curl -f http://localhost:${port}/v1/models --output models.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug' models.json")
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machine.succeed("curl -f http://localhost:${port}/tts --json @${writers.writeJSON "request.json" requests.request} --output out.wav")
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machine.succeed("curl -f http://localhost:${port}/v1/audio/transcriptions --header 'Content-Type: multipart/form-data' --form file=@out.wav --form model=${model-stt} --output transcription.json")
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machine.succeed("${jq}/bin/jq --exit-status 'debug | .segments | first.text == \"${requests.request.input}\"' transcription.json")
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'';
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};
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}
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