let's go

.github/workflows/train.yml

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+name: train-model
+on:
+  workflow-dispatch:
+    inputs:
+      epochs:
+        description: 'Number of epochs for training'
+        required: true
+        default: '1'
+jobs:
+  train:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      - name: Use Docker action
+        id: train
+        uses: ./
+        with:
+          epochs: 1
+
+      - name: Archive
+        uses: action/upload-artifact@v3
+        with:
+          name: model
+          path: model.keras
+

train-entrypoint.sh

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+#!/bin/sh
+
+cd /ium/src
+python3 tf_train.py "$1"
+cp /ium/src/model.keras /github/workspace/

train.dockerfile

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+FROM ubuntu:22.04
+
+RUN apt update && apt install -y vim make python3 python3-pip python-is-python3 gcc g++ golang wget unzip git
+RUN pip install pandas matplotlib scikit-learn tensorflow
+
+RUN mkdir /ium
+COPY . /ium
+
+WORKDIR /ium/src/
+
+RUN wget https://bendun.students.wmi.amu.edu.pl/stop_times.train.tsv
+RUN wget https://bendun.students.wmi.amu.edu.pl/stop_times.valid.tsv
+RUN wget https://bendun.students.wmi.amu.edu.pl/stop_times.categories.tsv
+
+VOLUME /github/workspace/
+
+ENTRYPOINT ["/ium/train-entrypoint.sh"]

train.yml

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+name: Train
+description: 'Train model'
+inputs:
+  epochs:
+    description: 'Number of epochs'
+    required: true
+    default: '2'
+runs:
+  using: 'docker'
+  image: 'train.dockerfile'
+  args:
+    - ${{ inputs.epochs }}