95 lines
4.0 KiB
JavaScript
95 lines
4.0 KiB
JavaScript
/*
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* Copyright The OpenTelemetry Authors
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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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* https://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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*/
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import { parseKeyPairsIntoRecord } from '@opentelemetry/core';
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import { diag } from '@opentelemetry/api';
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import { getSharedConfigurationFromEnvironment } from './shared-env-configuration';
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import { wrapStaticHeadersInFunction } from './shared-configuration';
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function getStaticHeadersFromEnv(signalIdentifier) {
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const signalSpecificRawHeaders = process.env[`OTEL_EXPORTER_OTLP_${signalIdentifier}_HEADERS`]?.trim();
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const nonSignalSpecificRawHeaders = process.env['OTEL_EXPORTER_OTLP_HEADERS']?.trim();
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const signalSpecificHeaders = parseKeyPairsIntoRecord(signalSpecificRawHeaders);
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const nonSignalSpecificHeaders = parseKeyPairsIntoRecord(nonSignalSpecificRawHeaders);
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if (Object.keys(signalSpecificHeaders).length === 0 &&
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Object.keys(nonSignalSpecificHeaders).length === 0) {
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return undefined;
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}
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// headers are combined instead of overwritten, with the specific headers taking precedence over
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// the non-specific ones.
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return Object.assign({}, parseKeyPairsIntoRecord(nonSignalSpecificRawHeaders), parseKeyPairsIntoRecord(signalSpecificRawHeaders));
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}
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function appendRootPathToUrlIfNeeded(url) {
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try {
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const parsedUrl = new URL(url);
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// This will automatically append '/' if there's no root path.
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return parsedUrl.toString();
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}
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catch {
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diag.warn(`Configuration: Could not parse environment-provided export URL: '${url}', falling back to undefined`);
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return undefined;
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}
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}
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function appendResourcePathToUrl(url, path) {
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try {
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// just try to parse, if it fails we catch and warn.
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new URL(url);
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}
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catch {
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diag.warn(`Configuration: Could not parse environment-provided export URL: '${url}', falling back to undefined`);
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return undefined;
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}
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if (!url.endsWith('/')) {
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url = url + '/';
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}
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url += path;
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try {
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// just try to parse, if it fails we catch and warn.
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new URL(url);
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}
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catch {
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diag.warn(`Configuration: Provided URL appended with '${path}' is not a valid URL, using 'undefined' instead of '${url}'`);
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return undefined;
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}
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return url;
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}
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function getNonSpecificUrlFromEnv(signalResourcePath) {
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const envUrl = process.env.OTEL_EXPORTER_OTLP_ENDPOINT?.trim();
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if (envUrl == null || envUrl === '') {
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return undefined;
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}
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return appendResourcePathToUrl(envUrl, signalResourcePath);
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}
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function getSpecificUrlFromEnv(signalIdentifier) {
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const envUrl = process.env[`OTEL_EXPORTER_OTLP_${signalIdentifier}_ENDPOINT`]?.trim();
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if (envUrl == null || envUrl === '') {
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return undefined;
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}
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return appendRootPathToUrlIfNeeded(envUrl);
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}
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/**
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* Reads and returns configuration from the environment
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*
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* @param signalIdentifier all caps part in environment variables that identifies the signal (e.g.: METRICS, TRACES, LOGS)
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* @param signalResourcePath signal resource path to append if necessary (e.g.: v1/metrics, v1/traces, v1/logs)
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*/
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export function getHttpConfigurationFromEnvironment(signalIdentifier, signalResourcePath) {
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return {
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...getSharedConfigurationFromEnvironment(signalIdentifier),
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url: getSpecificUrlFromEnv(signalIdentifier) ??
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getNonSpecificUrlFromEnv(signalResourcePath),
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headers: wrapStaticHeadersInFunction(getStaticHeadersFromEnv(signalIdentifier)),
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};
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}
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//# sourceMappingURL=otlp-http-env-configuration.js.map
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