Setting datadog agent permissions to log file not working

[pascuflow]

Describe what happened:

  ----------
    - Type: file
      Path: /home/ubuntu/Projects/livestream/nohup.out
      Status: Error: cannot read file /home/ubuntu/Projects/livestream/nohup.out: stat /home/ubuntu/Projects/livestream/nohup.out: permission denied
      BytesRead: 0
      Average Latency (ms): 0
      24h Average Latency (ms): 0
      Peak Latency (ms): 0
      24h Peak Latency (ms): 0

Describe what you expected:
I expect that after I confirm permissions with getfacl, datadog agent can read the log file:

# file: Projects/livestream/
# owner: ubuntu
# group: ubuntu
user::rwx
user:dd-agent:r-x
group::rwx
group:dd-agent:r-x
mask::rwx
other::rwx

ubuntu@ip-172-31-38-150:~$ getfacl Projects/livestream/nohup.out 
# file: Projects/livestream/nohup.out
# owner: ubuntu
# group: ubuntu
user::rwx
user:dd-agent:r-x
group::---
group:dd-agent:r-x
mask::rwx
other::rwx

sudo systemctl restart datadog-agent
sudo datadog-agent status

Steps to reproduce the issue:

Go through this guide https://docs.datadoghq.com/logs/guide/setting-file-permissions-for-rotating-logs/

Additional environment details (Operating System, Cloud provider, etc):

AWS Linux

[emmercm]

I ran into this issue as well, some concrete info about my situation:

• The EC2 instances are AWS EMR v6.8.0

• I'm configuring log file reading for the following:

  /mnt/var/log/bootstrap-actions/master.log
  /mnt/var/log/bootstrap-actions/1/controller
  /mnt/var/log/bootstrap-actions/1/stderr
  /mnt/var/log/bootstrap-actions/1/stdout
  

• All those log files are owned by the hadoop user and group

No amount of sudo chmod -R o+rx /mnt/var/log/bootstrap-actions or sudo chown -R dd-agent:dd-agent /mnt/var/log/bootstrap-actions/* fixed my issue. Instead, https://stackoverflow.com/a/72410946 solved my issue with sudo usermod -aG hadoop dd-agent.