mas_config/sections/
telemetry.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
// Copyright 2024 New Vector Ltd.
// Copyright 2021-2024 The Matrix.org Foundation C.I.C.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.

use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use serde_with::skip_serializing_none;
use url::Url;

use super::ConfigurationSection;

/// Propagation format for incoming and outgoing requests
#[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
#[serde(rename_all = "lowercase")]
pub enum Propagator {
    /// Propagate according to the W3C Trace Context specification
    TraceContext,

    /// Propagate according to the W3C Baggage specification
    Baggage,

    /// Propagate trace context with Jaeger compatible headers
    Jaeger,
}

#[allow(clippy::unnecessary_wraps)]
fn otlp_endpoint_default() -> Option<String> {
    Some("https://localhost:4318".to_owned())
}

/// Exporter to use when exporting traces
#[skip_serializing_none]
#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, Default)]
#[serde(rename_all = "lowercase")]
pub enum TracingExporterKind {
    /// Don't export traces
    #[default]
    None,

    /// Export traces to the standard output. Only useful for debugging
    Stdout,

    /// Export traces to an OpenTelemetry protocol compatible endpoint
    Otlp,
}

/// Configuration related to exporting traces
#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]
pub struct TracingConfig {
    /// Exporter to use when exporting traces
    #[serde(default)]
    pub exporter: TracingExporterKind,

    /// OTLP exporter: OTLP over HTTP compatible endpoint
    #[serde(skip_serializing_if = "Option::is_none")]
    #[schemars(url, default = "otlp_endpoint_default")]
    pub endpoint: Option<Url>,

    /// List of propagation formats to use for incoming and outgoing requests
    pub propagators: Vec<Propagator>,
}

impl TracingConfig {
    /// Returns true if all fields are at their default values
    fn is_default(&self) -> bool {
        matches!(self.exporter, TracingExporterKind::None)
            && self.endpoint.is_none()
            && self.propagators.is_empty()
    }
}

/// Exporter to use when exporting metrics
#[skip_serializing_none]
#[derive(Clone, Copy, Debug, Serialize, Deserialize, JsonSchema, Default)]
#[serde(rename_all = "lowercase")]
pub enum MetricsExporterKind {
    /// Don't export metrics
    #[default]
    None,

    /// Export metrics to stdout. Only useful for debugging
    Stdout,

    /// Export metrics to an OpenTelemetry protocol compatible endpoint
    Otlp,

    /// Export metrics via Prometheus. An HTTP listener with the `prometheus`
    /// resource must be setup to expose the Promethes metrics.
    Prometheus,
}

/// Configuration related to exporting metrics
#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]
pub struct MetricsConfig {
    /// Exporter to use when exporting metrics
    #[serde(default)]
    pub exporter: MetricsExporterKind,

    /// OTLP exporter: OTLP over HTTP compatible endpoint
    #[serde(skip_serializing_if = "Option::is_none")]
    #[schemars(url, default = "otlp_endpoint_default")]
    pub endpoint: Option<Url>,
}

impl MetricsConfig {
    /// Returns true if all fields are at their default values
    fn is_default(&self) -> bool {
        matches!(self.exporter, MetricsExporterKind::None) && self.endpoint.is_none()
    }
}

fn sentry_dsn_example() -> &'static str {
    "https://public@host:port/1"
}

/// Configuration related to the Sentry integration
#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]
pub struct SentryConfig {
    /// Sentry DSN
    #[schemars(url, example = "sentry_dsn_example")]
    #[serde(skip_serializing_if = "Option::is_none")]
    pub dsn: Option<String>,
}

impl SentryConfig {
    /// Returns true if all fields are at their default values
    fn is_default(&self) -> bool {
        self.dsn.is_none()
    }
}

/// Configuration related to sending monitoring data
#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]
pub struct TelemetryConfig {
    /// Configuration related to exporting traces
    #[serde(default, skip_serializing_if = "TracingConfig::is_default")]
    pub tracing: TracingConfig,

    /// Configuration related to exporting metrics
    #[serde(default, skip_serializing_if = "MetricsConfig::is_default")]
    pub metrics: MetricsConfig,

    /// Configuration related to the Sentry integration
    #[serde(default, skip_serializing_if = "SentryConfig::is_default")]
    pub sentry: SentryConfig,
}

impl TelemetryConfig {
    /// Returns true if all fields are at their default values
    pub(crate) fn is_default(&self) -> bool {
        self.tracing.is_default() && self.metrics.is_default() && self.sentry.is_default()
    }
}

impl ConfigurationSection for TelemetryConfig {
    const PATH: Option<&'static str> = Some("telemetry");
}