Dockerize a basic app

.dockerignore

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+__pycache__/

.gitignore

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+__pycache__/

Dockerfile

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+FROM python:3.11
+
+RUN pip3 install poetry
+RUN poetry config virtualenvs.create false
+
+RUN mkdir /opt/app
+WORKDIR /opt/app
+
+COPY pyproject.toml poetry.lock ./
+RUN poetry install --no-dev
+
+COPY ./ ./
+
+CMD ["flask", "run", "--host", "0.0.0.0"]

app.py

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+from flask import Flask
+
+app = Flask(__name__)
+
+@app.route('/')
+def index():
+  return 'Web App with Python Flask!'
+

docker-compose.yaml

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+services:
+  app:
+    build: .
+    init: true
+    ports:
+      - "127.0.0.1:5123:5000"

poetry.lock

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+[[package]]
+name = "blinker"
+version = "1.6.2"
+description = "Fast, simple object-to-object and broadcast signaling"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[[package]]
+name = "click"
+version = "8.1.3"
+description = "Composable command line interface toolkit"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+category = "main"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+
+[[package]]
+name = "flask"
+version = "2.3.2"
+description = "A simple framework for building complex web applications."
+category = "main"
+optional = false
+python-versions = ">=3.8"
+
+[package.dependencies]
+blinker = ">=1.6.2"
+click = ">=8.1.3"
+itsdangerous = ">=2.1.2"
+Jinja2 = ">=3.1.2"
+Werkzeug = ">=2.3.3"
+
+[package.extras]
+async = ["asgiref (>=3.2)"]
+dotenv = ["python-dotenv"]
+
+[[package]]
+name = "itsdangerous"
+version = "2.1.2"
+description = "Safely pass data to untrusted environments and back."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[[package]]
+name = "jinja2"
+version = "3.1.2"
+description = "A very fast and expressive template engine."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+MarkupSafe = ">=2.0"
+
+[package.extras]
+i18n = ["Babel (>=2.7)"]
+
+[[package]]
+name = "markupsafe"
+version = "2.1.3"
+description = "Safely add untrusted strings to HTML/XML markup."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[[package]]
+name = "werkzeug"
+version = "2.3.6"
+description = "The comprehensive WSGI web application library."
+category = "main"
+optional = false
+python-versions = ">=3.8"
+
+[package.dependencies]
+MarkupSafe = ">=2.1.1"
+
+[package.extras]
+watchdog = ["watchdog (>=2.3)"]
+
+[metadata]
+lock-version = "1.1"
+python-versions = "^3.10"
+content-hash = "d7a65ba75d9fd1d70398a76955d93d28129b8c09a3b56e10fef71ce427090c8b"
+
+[metadata.files]
+blinker = []
+click = []
+colorama = []
+flask = []
+itsdangerous = []
+jinja2 = []
+markupsafe = []
+werkzeug = []

pyproject.toml

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+[tool.poetry]
+name = "poetry-test"
+version = "0.1.0"
+description = ""
+authors = ["Kenneth Allen <kenneth@kallen.dev>"]
+
+[tool.poetry.dependencies]
+python = "^3.10"
+Flask = "^2.3.2"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"