deb: rpm: add log test for migration

[daipom]

I think this can fail in the deb test, and it makes #536 unstable.

2023-07-24 02:22:27 +0000 [info]: #0 [input_debug_agent] listening dRuby uri="druby://127.0.0.1:24230" object="Fluent::Engine" worker=0 2023-07-24 02:22:27 +0000 [error]: #0 unexpected error error_class=Errno::EADDRINUSE error="Address already in use - bind(2) for \"127.0.0.1\" port 24230"

Fluentd sometimes runs doubly.

[daipom]

Logs from the latest master CI. We can confirm Fluentd processes doubly launched after systemctl unmask and systemctl enable

https://github.com/fluent/fluent-package-builder/actions/runs/5618187541/job/15223899262#step:5:662

+ systemctl status --no-pager fluentd

● fluentd.service - fluentd: All in one package of Fluentd
     Loaded: loaded (/lib/systemd/system/fluentd.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2023-07-21 04:02:50 UTC; 671ms ago
       Docs: https://docs.fluentd.org/
    Process: 27585 ExecStart=/opt/fluent/bin/fluentd --log $FLUENT_PACKAGE_LOG_FILE --daemon /var/run/fluent/fluentd.pid $FLUENT_PACKAGE_OPTIONS (code=exited, status=0/SUCCESS)
   Main PID: 27606 (fluentd)
      Tasks: 4 (limit: 2271)
     Memory: 84.3M
     CGroup: /system.slice/fluentd.service
             ├─27606 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid
             └─27609 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid --under-supervisor

Jul 21 04:02:49 vagrant systemd[1]: Starting fluentd: All in one package of Fluentd...
Jul 21 04:02:50 vagrant systemd[1]: Started fluentd: All in one package of Fluentd.

+ systemctl status --no-pager td-agent

● td-agent.service
     Loaded: masked (Reason: Unit td-agent.service is masked.)
     Active: inactive (dead) since Fri 2023-07-21 04:02:38 UTC; 12s ago
   Main PID: 27223 (code=exited, status=0/SUCCESS)

Jul 21 04:02:34 vagrant systemd[1]: Starting td-agent: Fluentd based data collector for Treasure Data...
Jul 21 04:02:35 vagrant systemd[1]: Started td-agent: Fluentd based data collector for Treasure Data.
Jul 21 04:02:37 vagrant systemd[1]: Stopping td-agent: Fluentd based data collector for Treasure Data...
Jul 21 04:02:38 vagrant systemd[1]: td-agent.service: Succeeded.
Jul 21 04:02:38 vagrant systemd[1]: Stopped td-agent: Fluentd based data collector for Treasure Data.

+ sudo systemctl unmask td-agent

Removed /etc/systemd/system/td-agent.service.

+ sudo systemctl enable --now fluentd

Created symlink /etc/systemd/system/td-agent.service → /lib/systemd/system/fluentd.service.

+ systemctl status --no-pager td-agent

● fluentd.service - fluentd: All in one package of Fluentd
     Loaded: loaded (/lib/systemd/system/fluentd.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2023-07-21 04:02:52 UTC; 8ms ago
       Docs: https://docs.fluentd.org/
    Process: 27770 ExecStart=/opt/fluent/bin/fluentd --log $FLUENT_PACKAGE_LOG_FILE --daemon /var/run/fluent/fluentd.pid $FLUENT_PACKAGE_OPTIONS (code=exited, status=0/SUCCESS)
   Main PID: 27776 (fluentd)
      Tasks: 14 (limit: 2271)
     Memory: 160.6M
     CGroup: /system.slice/fluentd.service
             ├─27606 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid
             ├─27609 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid --under-supervisor
             ├─27776 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid
             └─27779 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid --under-supervisor

Jul 21 04:02:51 vagrant systemd[1]: Starting fluentd: All in one package of Fluentd...
Jul 21 04:02:52 vagrant systemd[1]: Started fluentd: All in one package of Fluentd.

+ systemctl status --no-pager fluentd

● fluentd.service - fluentd: All in one package of Fluentd
     Loaded: loaded (/lib/systemd/system/fluentd.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2023-07-21 04:02:52 UTC; 16ms ago
       Docs: https://docs.fluentd.org/
    Process: 27770 ExecStart=/opt/fluent/bin/fluentd --log $FLUENT_PACKAGE_LOG_FILE --daemon /var/run/fluent/fluentd.pid $FLUENT_PACKAGE_OPTIONS (code=exited, status=0/SUCCESS)
   Main PID: 27776 (fluentd)
      Tasks: 14 (limit: 2271)
     Memory: 162.1M
     CGroup: /system.slice/fluentd.service
             ├─27606 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid
             ├─27609 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid --under-supervisor
             ├─27776 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid
             └─27779 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/td-agent.log --daemon /var/run/fluent/fluentd.pid --under-supervisor

Jul 21 04:02:51 vagrant systemd[1]: Starting fluentd: All in one package of Fluentd...
Jul 21 04:02:52 vagrant systemd[1]: Started fluentd: All in one package of Fluentd.

[daipom]

• 539 will resolve this problem.

I will close this PR after #539 is merged.

[daipom]

• deb: prevent Fluentd from running doubly #539 will resolve this problem.

I will close this PR after #539 is merged.

539 is merged!