metrics: merge back to __init__.py to avoid context issues
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2 changed files with 73 additions and 98 deletions
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@ -1,17 +1,22 @@
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from typing import Iterator
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from flask import Flask, redirect, url_for
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from flask.typing import ResponseReturnValue
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from prometheus_client.metrics_core import GaugeMetricFamily, CounterMetricFamily
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from prometheus_client.registry import Collector
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from sqlalchemy import text
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from werkzeug.middleware.dispatcher import DispatcherMiddleware
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from prometheus_client import make_wsgi_app, REGISTRY
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from prometheus_client import make_wsgi_app, REGISTRY, Metric
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import yaml
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import sys
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from app.extensions import db
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from app.extensions import migrate
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from app.extensions import bootstrap
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from app.models.automation import Automation, AutomationState
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from app.portal import portal
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from app.tfstate import tfstate
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app = Flask(__name__)
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app.config.from_file("../config.yaml", load=yaml.safe_load)
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@ -31,12 +36,73 @@ def not_migrating() -> bool:
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return len(sys.argv) < 2 or sys.argv[1] != "db"
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if 'nose' not in sys.modules.keys() and not_migrating():
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from app.metrics import DefinedProxiesCollector, BlockedProxiesCollector, AutomationCollector
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class DefinedProxiesCollector(Collector):
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def collect(self) -> Iterator[Metric]:
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with app.app_context():
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conn = db.engine.connect()
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result = conn.execute(text("""
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SELECT origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name,
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COUNT(proxy.id) FROM proxy, origin, pool, "group"
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WHERE proxy.origin_id = origin.id
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AND origin.group_id = "group".id
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AND proxy.pool_id = pool.id
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AND proxy.destroyed IS NULL
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GROUP BY origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name;
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"""))
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c = GaugeMetricFamily("defined_proxies", "Number of proxies currently defined for deployment",
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labels=['group_id', 'group_name', 'provider', 'pool_id',
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'pool_name'])
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for row in result:
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c.add_metric([str(row[0]), row[1], row[2], str(row[3]), row[4]],
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row[5])
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yield c
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REGISTRY.register(DefinedProxiesCollector(app))
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REGISTRY.register(BlockedProxiesCollector(app))
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REGISTRY.register(AutomationCollector(app))
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class BlockedProxiesCollector(Collector):
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def collect(self) -> Iterator[Metric]:
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with app.app_context():
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with db.engine.connect() as conn:
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result = conn.execute(text("""
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SELECT origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name,
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proxy.deprecation_reason, COUNT(proxy.id) FROM proxy, origin, pool, "group"
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WHERE proxy.origin_id = origin.id
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AND origin.group_id = "group".id
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AND proxy.pool_id = pool.id
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AND proxy.deprecated IS NOT NULL
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GROUP BY origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name,
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proxy.deprecation_reason;
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"""))
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c = CounterMetricFamily("deprecated_proxies",
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"Number of proxies deprecated",
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labels=['group_id', 'group_name', 'provider', 'pool_id', 'pool_name',
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'deprecation_reason'])
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for row in result:
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c.add_metric([str(row[0]), row[1], row[2], str(row[3]), row[4], row[5]],
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row[6])
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yield c
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class AutomationCollector(Collector):
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def collect(self) -> Iterator[Metric]:
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with app.app_context():
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c = GaugeMetricFamily("automation_state", "The automation state (0: idle, 1: running, 2: error)",
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labels=['automation_name'])
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automations = Automation.query.all()
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for automation in automations:
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if automation.short_name in app.config['HIDDEN_AUTOMATIONS']:
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continue
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if automation.state == AutomationState.IDLE:
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c.add_metric([automation.short_name], 0)
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elif automation.state == AutomationState.RUNNING:
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c.add_metric([automation.short_name], 1)
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else:
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c.add_metric([automation.short_name], 2)
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yield c
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REGISTRY.register(DefinedProxiesCollector())
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REGISTRY.register(BlockedProxiesCollector())
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REGISTRY.register(AutomationCollector())
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@app.route('/')
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@ -1,91 +0,0 @@
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from abc import abstractmethod
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from typing import Iterator, Optional
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from flask import Flask
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from prometheus_client.metrics_core import GaugeMetricFamily, CounterMetricFamily, Metric
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from prometheus_client.registry import Collector
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from sqlalchemy import text
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from app.extensions import db
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from app.models.automation import Automation, AutomationState
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class FlaskCollector(Collector):
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_app: Optional[Flask]
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def __init__(self, app: Optional[Flask] = None) -> None:
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self._app = app
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def init_app(self, app: Flask) -> None:
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self._app = app
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def collect(self) -> Iterator[Metric]:
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if self._app:
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with self._app.app_context():
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return self.collect_in_ctx(self._app)
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raise RuntimeError("Flask collector was not initialised with app")
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@abstractmethod
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def collect_in_ctx(self, app: Flask) -> Iterator[Metric]:
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raise NotImplementedError()
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class DefinedProxiesCollector(FlaskCollector):
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def collect_in_ctx(self, app: Flask) -> Iterator[Metric]:
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conn = db.engine.connect()
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result = conn.execute(text("""
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SELECT origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name,
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COUNT(proxy.id) FROM proxy, origin, pool, "group"
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WHERE proxy.origin_id = origin.id
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AND origin.group_id = "group".id
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AND proxy.pool_id = pool.id
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AND proxy.destroyed IS NULL
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GROUP BY origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name;
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"""))
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c = GaugeMetricFamily("defined_proxies", "Number of proxies currently defined for deployment",
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labels=['group_id', 'group_name', 'provider', 'pool_id',
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'pool_name'])
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for row in result:
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c.add_metric([str(row[0]), row[1], row[2], str(row[3]), row[4]],
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row[5])
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yield c
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class BlockedProxiesCollector(FlaskCollector):
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def collect_in_ctx(self, app: Flask) -> Iterator[Metric]:
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with db.engine.connect() as conn:
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result = conn.execute(text("""
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SELECT origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name,
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proxy.deprecation_reason, COUNT(proxy.id) FROM proxy, origin, pool, "group"
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WHERE proxy.origin_id = origin.id
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AND origin.group_id = "group".id
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AND proxy.pool_id = pool.id
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AND proxy.deprecated IS NOT NULL
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GROUP BY origin.group_id, "group".group_name, proxy.provider, proxy.pool_id, pool.pool_name,
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proxy.deprecation_reason;
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"""))
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c = CounterMetricFamily("deprecated_proxies",
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"Number of proxies deprecated",
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labels=['group_id', 'group_name', 'provider', 'pool_id', 'pool_name',
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'deprecation_reason'])
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for row in result:
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c.add_metric([str(row[0]), row[1], row[2], str(row[3]), row[4], row[5]],
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row[6])
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yield c
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class AutomationCollector(FlaskCollector):
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def collect_in_ctx(self, app: Flask) -> Iterator[Metric]:
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c = GaugeMetricFamily("automation_state", "The automation state (0: idle, 1: running, 2: error)",
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labels=['automation_name'])
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automations = Automation.query.all()
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for automation in automations:
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if automation.short_name in app.config['HIDDEN_AUTOMATIONS']:
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continue
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if automation.state == AutomationState.IDLE:
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c.add_metric([automation.short_name], 0)
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elif automation.state == AutomationState.RUNNING:
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c.add_metric([automation.short_name], 1)
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else:
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c.add_metric([automation.short_name], 2)
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yield c
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