feat(opentelemetry-configuration): set attributes from attribute list from env variables

experimental/CHANGELOG.md

@@ -6,6 +6,8 @@ For notes on migrating to 2.x / 0.200.x see [the upgrade guide](doc/upgrade-to-2
 
 ## Unreleased
 
+* feat(opentelemetry-configuration): set attributes from attribute list from env variables [#6043](https://github.com/open-telemetry/opentelemetry-js/pull/6043) @maryliag
+
 ### :boom: Breaking Changes
 
 * feat(otlp-exporter-base)!: allow passing an async function to headers option [#5994](https://github.com/open-telemetry/opentelemetry-js/pull/5994/files) @pichlermarc

experimental/packages/opentelemetry-configuration/src/EnvironmentConfigProvider.ts

@@ -73,8 +73,18 @@ export function setResources(config: ConfigurationModel): void {
   }
 
   const resourceAttrList = getStringFromEnv('OTEL_RESOURCE_ATTRIBUTES');
-  if (resourceAttrList) {
+  const list = getStringListFromEnv('OTEL_RESOURCE_ATTRIBUTES');
+  if (list && list.length > 0) {
     config.resource.attributes_list = resourceAttrList;
+    config.resource.attributes = [];
+    for (let i = 0; i < list.length; i++) {
+      const element = list[i].split('=');
+      config.resource.attributes.push({
+        name: element[0],
+        value: element[1],
+        type: 'string',
+      });
+    }
   }
 
   const serviceName = getStringFromEnv('OTEL_SERVICE_NAME');

experimental/packages/opentelemetry-configuration/src/FileConfigProvider.ts

@@ -121,6 +121,24 @@ export function parseConfigFile(config: ConfigurationModel) {
       );
       if (attrList) {
         config.resource.attributes_list = attrList;
+        const list = getStringListFromConfigFile(
+          parsedContent['resource']?.['attributes_list']
+        );
+        if (
+          list &&
+          list.length > 0 &&
+          parsedContent['resource']?.['attributes'] == null
+        ) {
+          config.resource.attributes = [];
+          for (let i = 0; i < list.length; i++) {
+            const element = list[i].split('=');
+            config.resource.attributes.push({
+              name: element[0],
+              value: element[1],
+              type: 'string',
+            });
+          }
+        }
       }
 
       const schemaUrl = getStringFromConfigFile(

experimental/packages/opentelemetry-configuration/src/index.ts

@@ -14,6 +14,6 @@
  * limitations under the License.
  */
 
-export { EnvironmentConfigProvider } from './EnvironmentConfigProvider';
 export type { ConfigProvider } from './IConfigProvider';
 export type { ConfigurationModel as Configuration } from './models/configModel';
+export { createConfigProvider } from './ConfigProvider';

experimental/packages/opentelemetry-configuration/test/ConfigProvider.test.ts

@@ -809,6 +809,18 @@ describe('ConfigProvider', function () {
         resource: {
           attributes_list:
             'service.namespace=my-namespace,service.version=1.0.0',
+          attributes: [
+            {
+              name: 'service.namespace',
+              value: 'my-namespace',
+              type: 'string',
+            },
+            {
+              name: 'service.version',
+              value: '1.0.0',
+              type: 'string',
+            },
+          ],
         },
       };
       const configProvider = createConfigProvider();
@@ -1371,9 +1383,22 @@ describe('ConfigProvider', function () {
       process.env.OTEL_EXPERIMENTAL_CONFIG_FILE =
         'test/fixtures/short-config.yml';
       const configProvider = createConfigProvider();
+      const expectedConfig: Configuration = {
+        ...defaultConfig,
+        resource: {
+          attributes_list: 'service.instance.id=123',
+          attributes: [
+            {
+              name: 'service.instance.id',
+              value: '123',
+              type: 'string',
+            },
+          ],
+        },
+      };
       assert.deepStrictEqual(
         configProvider.getInstrumentationConfig(),
-        defaultConfig
+        expectedConfig
       );
     });
 

experimental/packages/opentelemetry-configuration/test/fixtures/short-config.yml

@@ -1,2 +1,4 @@
 file_format: "1.0-rc.1"
-disabled: false
+disabled: false
+resource:
+  attributes_list: service.instance.id=123