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Add Prometheus metrics

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This commit is contained in:
Andrew Williams
2024-08-16 16:23:24 +01:00
parent 549cf1b7b2
commit 3f6e94a80a
4 changed files with 38 additions and 2 deletions
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2
Makefile
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@@ -14,4 +14,4 @@ serve-uwsgi:
SIMPLE_WEBFINGER_CONFIG_FILE="examples/example-config.yaml" python3 -m poetry run uwsgi -w "simple_webfinger.app:create_app()" --master --http 0.0.0.0:8000 SIMPLE_WEBFINGER_CONFIG_FILE="examples/example-config.yaml" python3 -m poetry run uwsgi -w "simple_webfinger.app:create_app()" --master --http 0.0.0.0:8000
serve: serve:
SIMPLE_WEBFINGER_CONFIG_FILE="examples/example-config.yaml" FLASK_DEBUG=1 FLASK_APP="simple_webfinger.app:create_app()" python3 -m poetry run flask run DEBUG_METRICS=1 SIMPLE_WEBFINGER_CONFIG_FILE="examples/example-config.yaml" FLASK_DEBUG=1 FLASK_APP="simple_webfinger.app:create_app()" python3 -m poetry run flask run

31
poetry.lock generated
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@@ -203,6 +203,35 @@ files = [
dev = ["pre-commit", "tox"] dev = ["pre-commit", "tox"]
testing = ["pytest", "pytest-benchmark"] testing = ["pytest", "pytest-benchmark"]
[[package]]
name = "prometheus-client"
version = "0.20.0"
description = "Python client for the Prometheus monitoring system."
optional = false
python-versions = ">=3.8"
files = [
{file = "prometheus_client-0.20.0-py3-none-any.whl", hash = "sha256:cde524a85bce83ca359cc837f28b8c0db5cac7aa653a588fd7e84ba061c329e7"},
{file = "prometheus_client-0.20.0.tar.gz", hash = "sha256:287629d00b147a32dcb2be0b9df905da599b2d82f80377083ec8463309a4bb89"},
]
[package.extras]
twisted = ["twisted"]
[[package]]
name = "prometheus-flask-exporter"
version = "0.23.1"
description = "Prometheus metrics exporter for Flask"
optional = false
python-versions = "*"
files = [
{file = "prometheus_flask_exporter-0.23.1-py3-none-any.whl", hash = "sha256:ab49b2c40b57cd35cd51e91e59b3c306b3754477095c4f3cf679034c5122398c"},
{file = "prometheus_flask_exporter-0.23.1.tar.gz", hash = "sha256:587c770a1061e93d72c5cbcdefbd7b633fb764e39dffd7dd16932c9124559244"},
]
[package.dependencies]
flask = "*"
prometheus-client = "*"
[[package]] [[package]]
name = "pydantic" name = "pydantic"
version = "2.8.2" version = "2.8.2"
@@ -526,4 +555,4 @@ watchdog = ["watchdog (>=2.3)"]
[metadata] [metadata]
lock-version = "2.0" lock-version = "2.0"
python-versions = "^3.11" python-versions = "^3.11"
content-hash = "b042304154f4d2a7ccbe9fffcebc6db3c38549d73e080d317b7d039c33a28fa3" content-hash = "b221de707ffd32f063004ac38e899c2065608fbd7717d0e8885e42fb554e4b14"

1
pyproject.toml
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@@ -12,6 +12,7 @@ Flask = "^3.0.3"
PyYAML = "^6.0.2" PyYAML = "^6.0.2"
uwsgi = "^2.0.26" uwsgi = "^2.0.26"
pydantic = "^2.8.2" pydantic = "^2.8.2"
prometheus-flask-exporter = "^0.23.1"
[tool.poetry.group.dev.dependencies] [tool.poetry.group.dev.dependencies]
pytest = "^8.0.0" pytest = "^8.0.0"

6
simple_webfinger/app.py
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@@ -2,6 +2,8 @@ from urllib.parse import urlparse
import yaml import yaml
from flask import Flask, abort, request from flask import Flask, abort, request
from prometheus_flask_exporter import PrometheusMetrics
from simple_webfinger.models.webfinger import JSONResourceDefinition from simple_webfinger.models.webfinger import JSONResourceDefinition
@@ -62,6 +64,10 @@ def filter_links(links: dict[str, str], rel: list[str]) -> list:
def create_app(config={}): def create_app(config={}):
app = Flask("simple_webfinger") app = Flask("simple_webfinger")
metrics = PrometheusMetrics(app)
metrics.info('app_info', 'Application info', version='0.1.0')
app.webfinger_config = { app.webfinger_config = {
"domain": None, "domain": None,
"accounts": {}, "accounts": {},