Data stops for integrations with Logstash output selected, when agent is installed with --unprivileged flag.

[amolnater-qasource]

Kibana Build details:

VERSION: 8.13.0-SNAPSHOT
BUILD: 70749
COMMIT: a0f4897f7c04069faf2a86dbda1dabea78c161c1
Artifact Link: https://snapshots.elastic.co/8.13.0-l534sdis/downloads/beats/elastic-agent/elastic-agent-8.13.0-SNAPSHOT-linux-x86_64.tar.gz

Host OS: Linux- SLES15, Ubuntu 22

Preconditions:

1. 8.13.0 Snapshot linux agent should be installed.
2. Linux Agents should be installed using below command:
   sudo ./elastic-agent install --url=<url> --enrollment-token=<token> --unprivileged

Steps to reproduce:

1. Add Logstash output.
2. Select Integrations output under Agent policy: Logstash Output.
3. Observe agents get unhealthy and no new data is shipped for logstash output.

What's working fine:

• Issue is not reproducible on Linux- SLES15, Ubuntu 22 when agents are installed without --unprivileged flag.

Screen Recording:

Data.streams.-.Fleet.-.Elastic.-.Google.Chrome.2024-01-23.14-58-01.mp4

Logs:

elastic-agent-diagnostics-2024-01-23T09-28-27Z-00.zip

Agent JSON:
ip-172-31-83-5-agent-details.zip

Expected Result:
Data should be generated for integrations with Logstash output selected, when agent is installed with --unprivileged flag.

Feature:
https://github.com/elastic/ingest-dev/issues/1766

[elasticmachine]

Pinging @elastic/elastic-agent-control-plane (Team:Elastic-Agent-Control-Plane)

[amolnater-qasource]

@manishgupta-qasource Please review.

[manishgupta-qasource]

Secondary review for this ticket is Done

[amolnater-qasource]

Sorry for the confusion team, there was some ports issue on Logstash output host.
We are closing this as working fine.