envoy_data_plane
envoy_data_plane copied to clipboard
A conversion of envoyproxy/data-plane-api into Python dataclasses using betterproto
envoy_data_plane
A conversion of envoyproxy/data-plane-api protocol buffers into Python dataclasses using betterproto
Intended usage
This is a helper library that allows importing every type available in the envoy API.
One use-case might be generating Envoy configuration using a Python script.
In my case, I will use this library in my custom built control-plane, so that I have autocompletion in my IDE, and a basic form of validation.
In future, this may also help with building an idiomatic GRPC control-plane in Python.
Installation
This package is published to PyPI:
python -m pip install envoy_data_plane
Installing specific XDS revisions
There are branches available with compiled python protobuf files.
To install them, you can use the following syntax:
pip install git+https://github.com/cetanu/envoy_data_plane@<BRANCH NAME>
Examples:
pip install git+https://github.com/cetanu/envoy_data_plane@envoy_v1.13.7
pip install git+https://github.com/cetanu/envoy_data_plane@envoy_v1.16.2
pip install git+https://github.com/cetanu/envoy_data_plane@envoy_v1.17.2
pip install git+https://github.com/cetanu/envoy_data_plane@envoy_v1.18.2
pip install git+https://github.com/cetanu/envoy_data_plane@envoy_v1.19.0
Not all versions may be available. Raise an issue if you need another one added.
Example
import stringcase
import json
import envoy_data_plane.envoy.api.v2 as envoy
route_config = envoy.RouteConfiguration(
name='MyRouteConfig',
virtual_hosts=[
envoy.route.VirtualHost(
name='SomeWebsite',
domains=['foobar.com'],
routes=[
envoy.route.Route(
name='catchall',
match=envoy.route.RouteMatch(
prefix='/'
),
direct_response=envoy.route.DirectResponseAction(
status=200,
body=envoy.core.DataSource(
inline_string='Hello there'
)
)
)
]
)
]
)
response = envoy.DiscoveryResponse(
version_info='0',
resources=[
route_config
],
)
print(
json.dumps(response.to_dict(casing=stringcase.snakecase), indent=2)
)
Result:
{
"version_info": "0",
"resources": [
{
"name": "MyRouteConfig",
"virtual_hosts": [
{
"name": "SomeWebsite",
"domains": [
"foobar.com"
],
"routes": [
{
"name": "catchall",
"match": {
"prefix": "/",
"headers": [],
"query_parameters": []
},
"direct_response": {
"status": 200,
"body": {
"inline_string": "Hello there"
}
},
"request_headers_to_add": [],
"response_headers_to_add": []
}
],
"virtual_clusters": [],
"rate_limits": [],
"request_headers_to_add": [],
"response_headers_to_add": []
}
],
"response_headers_to_add": [],
"request_headers_to_add": []
}
]
}