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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
#!/usr/bin/env node
/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import path from 'path';
import fs from 'fs';
import { spawn, execSync } from 'child_process';
import {
OTEL_DIR,
BIN_DIR,
fileExists,
waitForPort,
ensureBinary,
manageTelemetrySettings,
registerCleanup,
} from './telemetry_utils.js';
const OTEL_CONFIG_FILE = path.join(OTEL_DIR, 'collector-gcp.yaml');
const OTEL_LOG_FILE = path.join(OTEL_DIR, 'collector-gcp.log');
const getOtelConfigContent = (projectId) => `
receivers:
otlp:
protocols:
grpc:
endpoint: "localhost:4317"
processors:
batch:
timeout: 1s
exporters:
googlecloud:
project: "${projectId}"
metric:
prefix: "custom.googleapis.com/gemini_cli"
log:
default_log_name: "gemini_cli"
debug:
verbosity: detailed
service:
telemetry:
logs:
level: "debug"
metrics:
level: "none"
pipelines:
traces:
receivers: [otlp]
processors: [batch]
exporters: [googlecloud]
metrics:
receivers: [otlp]
processors: [batch]
exporters: [googlecloud, debug]
logs:
receivers: [otlp]
processors: [batch]
exporters: [googlecloud, debug]
`;
async function main() {
console.log('โจ Starting Local Telemetry Exporter for Google Cloud โจ');
let collectorProcess;
let collectorLogFd;
const originalSandboxSetting = manageTelemetrySettings(
true,
'http://localhost:4317',
);
registerCleanup(
() => [collectorProcess].filter((p) => p), // Function to get processes
() => [collectorLogFd].filter((fd) => fd), // Function to get FDs
originalSandboxSetting,
);
const projectId = process.env.GOOGLE_CLOUD_PROJECT;
if (!projectId) {
console.error(
'๐ Error: GOOGLE_CLOUD_PROJECT environment variable is not set.',
);
console.log('Please set it to your Google Cloud Project ID and try again.');
process.exit(1);
}
console.log(`โ
Using Google Cloud Project ID: ${projectId}`);
console.log('\n๐ Please ensure you are authenticated with Google Cloud:');
console.log(
' - Run `gcloud auth application-default login` OR ensure `GOOGLE_APPLICATION_CREDENTIALS` environment variable points to a valid service account key.',
);
console.log(
' - The account needs "Cloud Trace Agent", "Monitoring Metric Writer", and "Logs Writer" roles.',
);
if (!fileExists(BIN_DIR)) fs.mkdirSync(BIN_DIR, { recursive: true });
const otelcolPath = await ensureBinary(
'otelcol-contrib',
'open-telemetry/opentelemetry-collector-releases',
(version, platform, arch, ext) =>
`otelcol-contrib_${version}_${platform}_${arch}.${ext}`,
'otelcol-contrib',
false, // isJaeger = false
).catch((e) => {
console.error(`๐ Error getting otelcol-contrib: ${e.message}`);
return null;
});
if (!otelcolPath) process.exit(1);
console.log('๐งน Cleaning up old processes and logs...');
try {
execSync('pkill -f "otelcol-contrib"');
console.log('โ
Stopped existing otelcol-contrib process.');
} catch (_e) {
/* no-op */
}
try {
fs.unlinkSync(OTEL_LOG_FILE);
console.log('โ
Deleted old GCP collector log.');
} catch (e) {
if (e.code !== 'ENOENT') console.error(e);
}
if (!fileExists(OTEL_DIR)) fs.mkdirSync(OTEL_DIR, { recursive: true });
fs.writeFileSync(OTEL_CONFIG_FILE, getOtelConfigContent(projectId));
console.log(`๐ Wrote OTEL collector config to ${OTEL_CONFIG_FILE}`);
console.log(`๐ Starting OTEL collector for GCP... Logs: ${OTEL_LOG_FILE}`);
collectorLogFd = fs.openSync(OTEL_LOG_FILE, 'a');
collectorProcess = spawn(otelcolPath, ['--config', OTEL_CONFIG_FILE], {
stdio: ['ignore', collectorLogFd, collectorLogFd],
env: { ...process.env },
});
console.log(
`โณ Waiting for OTEL collector to start (PID: ${collectorProcess.pid})...`,
);
try {
await waitForPort(4317);
console.log(`โ
OTEL collector started successfully on port 4317.`);
} catch (err) {
console.error(`๐ Error: OTEL collector failed to start on port 4317.`);
console.error(err.message);
if (collectorProcess && collectorProcess.pid) {
process.kill(collectorProcess.pid, 'SIGKILL');
}
if (fileExists(OTEL_LOG_FILE)) {
console.error('๐ OTEL Collector Log Output:');
console.error(fs.readFileSync(OTEL_LOG_FILE, 'utf-8'));
}
process.exit(1);
}
collectorProcess.on('error', (err) => {
console.error(`${collectorProcess.spawnargs[0]} process error:`, err);
process.exit(1);
});
console.log(`\nโจ Local OTEL collector for GCP is running.`);
console.log(`\n๐ Collector logs are being written to: ${OTEL_LOG_FILE}`);
console.log(`\n๐ View your telemetry data in Google Cloud Console:`);
console.log(
` - Traces: https://console.cloud.google.com/traces/list?project=${projectId}`,
);
console.log(
` - Metrics: https://console.cloud.google.com/monitoring/metrics-explorer?project=${projectId}`,
);
console.log(
` - Logs: https://console.cloud.google.com/logs/query;query=logName%3D%22projects%2F${projectId}%2Flogs%2Fgemini_cli%22?project=${projectId}`,
);
console.log(`\nPress Ctrl+C to exit.`);
}
main();
|
