Reduce image size by over 4x using pyinstaller as a poetry plugin

Dockerfile

@@ -1,20 +1,24 @@
 FROM python:3.13.2-alpine3.21 AS base
-WORKDIR /de-denker
 
-FROM base AS requirements
-RUN pip install poetry-plugin-export
-COPY pyproject.toml poetry.lock ./
-RUN poetry export --without-hashes --format=requirements.txt > requirements.txt
 
 FROM base AS build
+
+WORKDIR /dedenker
+
 RUN apk add --no-cache build-base
-ENV PYTHONDONTWRITEBYTECODE=1
-COPY --from=requirements /de-denker/requirements.txt .
-RUN pip install -r requirements.txt
-
-FROM base AS artifact
-RUN apk add --no-cache libgomp libstdc++
-COPY --from=build /usr/local/lib/python3.13/site-packages /usr/local/lib/python3.13/site-packages
-COPY --from=build /usr/local/bin /usr/local/bin
-COPY config.py main.py models.py static_probabilities.py telraam_api.py ./
-CMD ["python", "main.py"]
+RUN pip install poetry==2.1
+RUN poetry self add poetry-pyinstaller-plugin==1.4
+
+COPY pyproject.toml poetry.lock .
+RUN poetry install --no-root
+
+COPY dedenker/ dedenker/
+RUN PYTHONOPTIMIZE=2 poetry build --format=pyinstaller
+RUN mv dist/pyinstaller/musllinux_1_2_x86_64/dedenker dist/
+
+
+FROM scratch AS artifact
+COPY --from=base /lib/ld-musl-x86_64.so.1 /usr/lib/libz.so.1 /lib/
+COPY --from=base /tmp /tmp
+COPY --from=build /dedenker/dist/dedenker /dedenker
+CMD ["/dedenker"]

README.md

@@ -11,7 +11,7 @@ A possible `docker-compose.yml` can be the next one. Adapt where needed.
 
 ```yml
 services:
-  de-denker:
+  dedenker:
     image: ghcr.io/12urenloop/dedenker:main
     restart: unless-stopped
     environment:

main.py → dedenker/main.py

@@ -1,15 +1,15 @@
-from time import time, sleep
+from time import sleep, time
 
 import colorlog
-import numpy as np
-import requests.exceptions
 from hmmlearn.base import ConvergenceMonitor
 from hmmlearn.hmm import CategoricalHMM
+import numpy as np
+import requests.exceptions
 
-from config import RONNY_COUNT, SLEEP_DURATION
-from models import Detection
-from static_probabilities import START_PROBABILITIES_12UL, EMISSION_PROBABILITIES_12UL, TRANSITION_PROBABILITIES_12UL
-from telraam_api import TelraamAPI
+from dedenker.config import RONNY_COUNT, SLEEP_DURATION
+from dedenker.models import Detection
+from dedenker.static_probabilities import TRANSITION_PROBABILITIES_12UL, START_PROBABILITIES_12UL, EMISSION_PROBABILITIES_12UL
+from dedenker.telraam_api import TelraamAPI
 
 handler = colorlog.StreamHandler()
 handler.setFormatter(colorlog.ColoredFormatter('%(log_color)s%(levelname)s\t%(message)s'))

telraam_api.py → dedenker/telraam_api.py

@@ -1,8 +1,7 @@
 from requests import get, post
 
-from config import TELRAAM_URL
-from models import Detection
-
+from dedenker.config import TELRAAM_URL
+from dedenker.models import Detection
 
 class TelraamAPI:
     """

pyproject.toml

@@ -1,17 +1,22 @@
-[tool.poetry]
-package-mode = false
-name = "De Denker"
+[project]
+name = "DeDenker"
+version = "0.1.0"
 description = "A HMM lapper for Telraam using the API"
 license = "MIT"
-readme = "README.md"
-
-[tool.poetry.dependencies]
-python = "^3.11"
-hmmlearn = "^0.3.0"
-requests = "^2.31.0"
-colorlog = "^6.7.0"
-
+requires-python = ">=3.13"
+dependencies = [
+    "hmmlearn (>=0.3.3,<1.0.0)",
+    "requests (>=2.32.2,<3.0.0)",
+    "colorlog (>=6.9.0,<7.0.0)",
+]
 
 [build-system]
-requires = ["poetry-core"]
+requires = ["poetry-core>=2.0.0,<3.0.0"]
 build-backend = "poetry.core.masonry.api"
+
+[tool.poetry-pyinstaller-plugin]
+version = "6.12.0"
+
+[tool.poetry-pyinstaller-plugin.scripts.dedenker]
+source = "dedenker/main.py"
+type = "onefile"