syslog forwarding stopped working with Nomad v0.6.3-rc1

[shantanugadgil]

Upgrading the client agent to version Nomad v0.6.3-rc1 makes syslog forwarding to a central server stop working.
It works fine with Nomad v0.6.2

Nomad version

Server: Nomad v0.6.3-rc1

Agent:
Nomad v0.6.3-rc1
Nomad v0.6.2

Operating system and Environment details

CentOS 7 (with latest updates)

Issue

Upgrading the Nomad agent on the client machine to version v0.6.3-rc1 makes syslog forwarding to a central server stop working.

Reproduction steps

update agent to Nomad v0.6.3-rc1; stop and start the job.
(you'll see that the logs don't appear on the central server)

replace the agent version with Nomad v0.6.2; stop and start the job.
(you'll see that the logs appear on the central server)

Nomad Server logs (if appropriate)

???

Nomad Client logs (if appropriate)

???

Job file (if appropriate)

relevant config section:

...
config {
  logging {
    type = "syslog"

    config = {
      syslog-address = "tcp://local-logs.example.com:10514"
      tag            = "my_task_tag"
    }
  }
...

Regards,
Shantanu

[dadgar]

Seems like the offender: #3135. Needs investigation

[github-actions]

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