fix(detector-container): properly detect container ID when using Podman (#2448)

Co-authored-by: David Luna <[email protected]>

Author: sjinks

detectors/node/opentelemetry-resource-detector-container/src/detectors/ContainerDetector.ts

@@ -35,7 +35,7 @@ export class ContainerDetector implements DetectorSync {
   readonly DEFAULT_CGROUP_V2_PATH = '/proc/self/mountinfo';
   readonly UTF8_UNICODE = 'utf8';
   readonly HOSTNAME = 'hostname';
-  readonly MARKING_PREFIX = 'containers';
+  readonly MARKING_PREFIX = ['containers', 'overlay-containers'];
   readonly CRIO = 'crio-';
   readonly CRI_CONTAINERD = 'cri-containerd-';
   readonly DOCKER = 'docker-';
@@ -105,7 +105,7 @@ export class ContainerDetector implements DetectorSync {
     const strArray = str?.split('/') ?? [];
     for (let i = 0; i < strArray.length - 1; i++) {
       if (
-        strArray[i] === this.MARKING_PREFIX &&
+        this.MARKING_PREFIX.includes(strArray[i]) &&
         strArray[i + 1]?.length === this.CONTAINER_ID_LENGTH
       ) {
         return strArray[i + 1];

detectors/node/opentelemetry-resource-detector-container/src/detectors/utils.ts

@@ -18,7 +18,7 @@ export const DEFAULT_CGROUP_V1_PATH = '/proc/self/cgroup';
 export const DEFAULT_CGROUP_V2_PATH = '/proc/self/mountinfo';
 export const UTF8_UNICODE = 'utf8';
 export const HOSTNAME = 'hostname';
-export const MARKING_PREFIX = 'containers';
+export const MARKING_PREFIX = ['containers', 'overlay-containers'];
 export const CRIO = 'crio-';
 export const CRI_CONTAINERD = 'cri-containerd-';
 export const DOCKER = 'docker-';

detectors/node/opentelemetry-resource-detector-container/test/ContainerDetector.test.ts

@@ -32,6 +32,8 @@ describe('ContainerDetector', () => {
   const correctCgroupV2Data = `containers/tmhdefghijklmnopqrstuvwxyzafgrefghiugkmnopqrstuvwxyzabcdefghijkl/hostname
     fhkjdshgfhsdfjhdsfkjhfkdshkjhfd/host
     sahfhfjkhjhfhjdhfjkdhfkjdhfjkhhdsjfhdfhjdhfkj/somethingelse`;
+  const correctCgroupV2PodmanData =
+    '4245 4237 0:94 /containers/overlay-containers/4e9dc37d00ebd2daea029d84bb37764ce12d746a6f3a33c5969cee15c4fc4418/userdata/hostname /etc/hostname rw - tmpfs tmpfs rw';
 
   const wrongCgroupV2Data =
     'bcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklm/wrongkeyword';
@@ -85,6 +87,22 @@ describe('ContainerDetector', () => {
       });
     });
 
+    it('should return a resource with container ID with a valid container ID present for v2 (Podman)', async () => {
+      readStub = sinon.stub(ContainerDetector, 'readFileAsync' as any);
+
+      readStub.onFirstCall().resolves('');
+      readStub.onSecondCall().resolves(correctCgroupV2PodmanData);
+
+      const resource = containerDetector.detect();
+      await resource.waitForAsyncAttributes?.();
+      sinon.assert.calledTwice(readStub);
+
+      assert.ok(resource);
+      assertContainerResource(resource, {
+        id: '4e9dc37d00ebd2daea029d84bb37764ce12d746a6f3a33c5969cee15c4fc4418',
+      });
+    });
+
     it('should return a empty resource with failed hostname check for v2', async () => {
       readStub = sinon.stub(ContainerDetector, 'readFileAsync' as any);