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3rd chunk of `content/guides/python/containerize.md`
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Create a file named `compose.yaml` with the following contents.

```yaml {collapse=true,title=compose.yaml}
# Comments are provided throughout this file to help you get started.
# If you need more help, visit the Docker Compose reference guide at
# https://docs.docker.com/go/compose-spec-reference/

# Here the instructions define your application as a service called "server".
# This service is built from the Dockerfile in the current directory.
# You can add other services your application may depend on here, such as a
# database or a cache. For examples, see the Awesome Compose repository:
# https://github.com/docker/awesome-compose
services:
  server:
    build:
      context: .
    ports:
      - 8000:8000
```

Create a file named `.dockerignore` with the following contents.

```text {collapse=true,title=".dockerignore"}
# Include any files or directories that you don't want to be copied to your
# container here (e.g., local build artifacts, temporary files, etc.).
#
# For more help, visit the .dockerignore file reference guide at
# https://docs.docker.com/go/build-context-dockerignore/

**/.DS_Store
**/__pycache__
**/.venv
**/.classpath
**/.dockerignore
**/.env
**/.git
**/.gitignore
**/.project
**/.settings
**/.toolstarget
**/.vs
**/.vscode
**/*.*proj.user
**/*.dbmdl
**/*.jfm
**/bin
**/charts
**/docker-compose*
**/compose.y*ml
**/Dockerfile*
**/node_modules
**/npm-debug.log
**/obj
**/secrets.dev.yaml
**/values.dev.yaml
LICENSE
README.md
```

Create a file named `.gitignore` with the following contents.

```text {collapse=true,title=".gitignore"}
# 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

# Unit test / coverage reports
htmlcov/
.tox/
.nox/
.coverage
.coverage.*
.cache
nosetests.xml
coverage.xml
*.cover
*.py,cover
.hypothesis/
.pytest_cache/
cover/

# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
Title: Compose File, Dockerignore, and Gitignore Configuration
Summary
This section details the creation of the `compose.yaml`, `.dockerignore`, and `.gitignore` files. The `compose.yaml` file defines the application as a service named 'server,' builds it from the Dockerfile in the current directory, and maps port 8000. The `.dockerignore` file specifies patterns for excluding files and directories (like `.DS_Store`, `__pycache__`, `.git`, `node_modules`, and Docker-related files) from the Docker image build context. The `.gitignore` file provides a list of files and directories (including bytecode files, C extensions, distribution artifacts, test reports, and PEP 582 artifacts) to exclude from Git version control.