build(docker): add integration tests, Dockerfile, and docker-compose for packaging

.dockerignore

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+# Git
+.git
+.gitignore
+.gitattributes
+
+# Python
+__pycache__
+*.py[cod]
+*$py.class
+*.so
+.Python
+*.egg-info/
+dist/
+build/
+*.egg
+
+# Virtual environments
+venv/
+env/
+ENV/
+.venv
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+.hypothesis/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Documentation
+*.md
+docs/
+
+# Nix
+result/
+.direnv/
+.sisyphus/
+
+# Docker
+docker-compose.yml
+.dockerignore
+
+# OS
+.DS_Store
+Thumbs.db
+
+# CI/CD
+.github/
+.gitlab-ci.yml
+Jenkinsfile
+
+# Logs
+*.log