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Train and Deploy Keras model with Nvidia Triton Engine

training mnist digit classifier model

Run the mock python training code

pip install -r examples/keras/requirements.txt 
python examples/keras/train_keras_mnist.py

The output will be a model created on the project "serving examples", by the name "train keras model"

setting up the serving service

Prerequisites, Keras/Tensorflow models require Triton engine support, please use docker-compose-triton.yml / docker-compose-triton-gpu.yml or if running on Kubernetes, the matching helm chart.

  1. Create serving Service: clearml-serving create --name "serving example" (write down the service ID)
  2. Create model endpoint:

clearml-serving --id <service_id> model add --engine triton --endpoint "test_model_keras" --preprocess "examples/keras/preprocess.py" --name "train keras model - serving_model" --project "serving examples" --input-size 1 784 --input-name "dense_input" --input-type float32 --output-size -1 10 --output-name "activation_2" --output-type float32

Or auto update

clearml-serving --id <service_id> model auto-update --engine triton --endpoint "test_model_auto" --preprocess "examples/keras/preprocess.py" --name "train keras model - serving_model" --project "serving examples" --max-versions 2 --input-size 1 784 --input-name "dense_input" --input-type float32 --output-size -1 10 --output-name "activation_2" --output-type float32

Or add Canary endpoint

clearml-serving --id <service_id> model canary --endpoint "test_model_auto" --weights 0.1 0.9 --input-endpoint-prefix test_model_auto

  1. Make sure you have the clearml-serving docker-compose-triton.yml (or docker-compose-triton-gpu.yml) running, it might take it a minute or two to sync with the new endpoint.

  2. Test new endpoint (do notice the first call will trigger the model pulling, so it might take longer, from here on, it's all in memory):
    curl -X POST "http://127.0.0.1:8080/serve/test_model_keras" -H "accept: application/json" -H "Content-Type: application/json" -d '{"url": "https://raw.githubusercontent.com/allegroai/clearml-serving/main/examples/pytorch/5.jpg"}'
    or send a local file to be classified with
    curl -X POST "http://127.0.0.1:8080/serve/test_model_keras" -H "Content-Type: image/jpeg" --data-binary "@5.jpg"

Notice: You can also change the serving service while it is already running! This includes adding/removing endpoints, adding canary model routing etc. by default new endpoints/models will be automatically updated after 1 minute