105 lines
3.7 KiB
Python
105 lines
3.7 KiB
Python
# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright 2019 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Any, Optional
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import attr
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from synapse.types import JsonDict
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from synapse.util.check_dependencies import check_requirements
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from ._base import Config, ConfigError
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@attr.s
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class MetricsFlags:
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known_servers: bool = attr.ib(
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default=False, validator=attr.validators.instance_of(bool)
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)
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@classmethod
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def all_off(cls) -> "MetricsFlags":
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"""
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Instantiate the flags with all options set to off.
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"""
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return cls(**{x.name: False for x in attr.fields(cls)})
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class MetricsConfig(Config):
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section = "metrics"
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def read_config(self, config: JsonDict, **kwargs: Any) -> None:
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self.enable_metrics = config.get("enable_metrics", False)
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"""
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### `enable_legacy_metrics` (experimental)
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**Experimental: this option may be removed or have its behaviour
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changed at any time, with no notice.**
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Set to `true` to publish both legacy and non-legacy Prometheus metric names,
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or to `false` to only publish non-legacy Prometheus metric names.
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Defaults to `true`. Has no effect if `enable_metrics` is `false`.
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Legacy metric names include:
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- metrics containing colons in the name, such as `synapse_util_caches_response_cache:hits`, because colons are supposed to be reserved for user-defined recording rules;
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- counters that don't end with the `_total` suffix, such as `synapse_federation_client_sent_edus`, therefore not adhering to the OpenMetrics standard.
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These legacy metric names are unconventional and not compliant with OpenMetrics standards.
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They are included for backwards compatibility.
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Example configuration:
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```yaml
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enable_legacy_metrics: false
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```
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See https://github.com/matrix-org/synapse/issues/11106 for context.
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*Since v1.67.0.*
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"""
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self.enable_legacy_metrics = config.get("enable_legacy_metrics", True)
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self.report_stats = config.get("report_stats", None)
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self.report_stats_endpoint = config.get(
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"report_stats_endpoint", "https://matrix.org/report-usage-stats/push"
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)
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self.metrics_port = config.get("metrics_port")
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self.metrics_bind_host = config.get("metrics_bind_host", "127.0.0.1")
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if self.enable_metrics:
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_metrics_config = config.get("metrics_flags") or {}
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self.metrics_flags = MetricsFlags(**_metrics_config)
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else:
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self.metrics_flags = MetricsFlags.all_off()
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self.sentry_enabled = "sentry" in config
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if self.sentry_enabled:
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check_requirements("sentry")
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self.sentry_dsn = config["sentry"].get("dsn")
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if not self.sentry_dsn:
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raise ConfigError(
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"sentry.dsn field is required when sentry integration is enabled"
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)
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def generate_config_section(
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self, report_stats: Optional[bool] = None, **kwargs: Any
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) -> str:
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if report_stats is not None:
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res = "report_stats: %s\n" % ("true" if report_stats else "false")
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else:
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res = "\n"
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return res
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