Add webserver example

examples/webserver/.gitignore

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+.pixi/
+output/
+__pycache__/

examples/webserver/README.md

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+# Webserver
+
+This is a simple web server that runs FastAPI.
+
+## Run the server
+
+```bash
+rattler-build build -r recipe/recipe.yaml
+pixi-pack pack -e prod --platform win-64 --inject output/noarch/my-webserver-*.conda
+```
+
+> [!NOTE]
+> The file `my-webserver-0.1.0-pyh4616a5c_0.conda` is only for testing, in a real scenario it would be in the `output/noarch` directory generated by `rattler-build`.

examples/webserver/my_webserver/__init__.py

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+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.get("/")
+def hello():
+    return "Hello, World!"

examples/webserver/pixi.toml

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+[project]
+name = "pixi-docker-example"
+channels = ["conda-forge"]
+platforms = ["osx-arm64", "linux-64", "linux-aarch64", "win-64"]
+
+[tasks]
+dev = "uvicorn my_project:app --reload"
+start = "uvicorn my_project:app --host 0.0.0.0"
+
+[dependencies]
+fastapi = "*"
+uvicorn = "*"
+
+[feature.dev.dependencies]
+pytest = "*"
+ruff = "*"
+mypy = "*"
+
+[environments]
+default = { features = ["dev"], solve-group = "prod" }
+prod = { features = [], solve-group = "prod" }

examples/webserver/pyproject.toml

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+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "my-webserver"
+description = "Example web server"
+version = "0.1.0"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.12",
+]
+requires-python = ">=3.12"
+# pixi handles the dependencies
+# since we don't want to distribute this to pypi, we don't need to specify them here
+dependencies = []

examples/webserver/recipe/recipe.yaml

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+# yaml-language-server: $schema=https://raw.githubusercontent.com/prefix-dev/recipe-format/main/schema.json
+
+package:
+  name: my-webserver
+  version: '0.1.0'
+
+source:
+  path: ../
+
+build:
+  number: 0
+  noarch: python
+  script:
+    - python -m pip install . --no-deps --ignore-installed -vv --no-build-isolation --disable-pip-version-check
+
+requirements:
+  host:
+    - python >=3.12
+    - pip
+    - hatchling
+  run:
+    - python >=3.12
+    - fastapi
+
+tests:
+  - python:
+      imports:
+        - my_webserver
+  - package_contents:
+      site_packages: 
+        - my_webserver/__init__.py