python gitignore, harden with chainguard, up version to 0.3

.gitignore

@@ -0,0 +1,192 @@
+# Created by https://www.toptal.com/developers/gitignore/api/python,linux
+# Edit at https://www.toptal.com/developers/gitignore?templates=python,linux
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+### Python Patch ###
+# Poetry local configuration file - https://python-poetry.org/docs/configuration/#local-configuration
+poetry.toml
+
+# ruff
+.ruff_cache/
+
+# LSP config files
+pyrightconfig.json
+
+# End of https://www.toptal.com/developers/gitignore/api/python,linux
+myvalues.yaml

Dockerfile

@@ -1,13 +1,37 @@
-FROM python:3.11-slim
+# Stage 1: Build
+FROM cgr.dev/chainguard/python:latest-dev AS builder
 
+# Set build directory
 WORKDIR /app
 
-COPY requirements.txt .
+# Copy project files and ensure they are owned by the nonroot user (65532)
+COPY --chown=65532:65532 . .
+
+# Create a virtual environment and install dependencies
+# We use a relative path 'venv' to stay within the writable /app directory.
+RUN python -m venv venv
+ENV PATH="/app/venv/bin:$PATH"
 RUN pip install --no-cache-dir -r requirements.txt
 
-COPY . .
+# Stage 2: Runtime
+FROM cgr.dev/chainguard/python:latest
 
+# Set environment variables
+ENV PATH="/app/venv/bin:$PATH"
+# In distroless-style images, we don't have a shell, so we must be explicit.
+ENV PYTHONUNBUFFERED=1
+
+# Work in the standard /app directory
+WORKDIR /app
+
+# Copy virtual environment and application files from builder
+# We use --chown to ensure the runtime user (nonroot/65532) can access the files.
+COPY --from=builder --chown=65532:65532 /app /app
+
+# Expose port
 EXPOSE 5000
 
-CMD ["gunicorn", "--bind", "0.0.0.0:5000", "app:app"]
+# Run gunicorn using the virtual environment's python directly or gunicorn binary.
+ENTRYPOINT ["/app/venv/bin/gunicorn", "--bind", "0.0.0.0:5000", "app:app"]
+
 #harbor.freshbrewed.science/library/k8s-pulse

version.ini

@@ -1,2 +1,2 @@
 [metadata]
-version = 0.2
+version = 0.3