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[docker] driver di logging: journald o syslog?

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From Peter Wall <peter@oet.sold>
Newsgroups it.comp.os.linux.software
Subject [docker] driver di logging: journald o syslog?
Date Wed, 11 Jan 2023 09:53:22 +0100
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$ cat test2
#!/bin/bash
for suffix in journald syslog; do
     cat daemon-$suffix.json
     sudo ln -sf $PWD/daemon-$suffix.json /etc/docker/daemon.json
     sudo systemctl restart docker

     echo docker run...
     docker run --rm bash echo "$(date) stdDOCKERout"
     docker run --rm bash -c 'echo "$(date) stdDOCKERerr" > /dev/stderr'

     echo journalctl grep...
     (journalctl --output cat -b | grep stdDOCKER || echo RECORD NOT 
FOUND) | tail -n2
done

$ test2
{
     "log-driver": "journald",
     "log-opts": {
         "tag": "{{.ImageName}}/{{.Name}}/{{.ID}}"
     }
}
docker run...
mar 10 gen 2023, 12:59:47, CET stdDOCKERout
Tue Jan 10 11:59:48 UTC 2023 stdDOCKERerr
journalctl grep...
mar 10 gen 2023, 12:59:47, CET stdDOCKERout
Tue Jan 10 11:59:48 UTC 2023 stdDOCKERerr
{
     "log-driver": "syslog",
     "log-opts": {
         "tag": "{{.ImageName}}/{{.Name}}/{{.ID}}"
     }
}
docker run...
mar 10 gen 2023, 12:59:53, CET stdDOCKERout
Tue Jan 10 11:59:54 UTC 2023 stdDOCKERerr
journalctl grep...
mar 10 gen 2023, 12:59:53, CET stdDOCKERout
Tue Jan 10 11:59:54 UTC 2023 stdDOCKERerr

Come vedete, entrambi i driver di logging (journald e syslog), sembrano 
funzionare correttamente.
Allora dov'รจ la differenza?

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[docker] driver di logging: journald o syslog? Peter Wall <peter@oet.sold> - 2023-01-11 09:53 +0100
  Re: [docker] driver di logging: journald o syslog? Enrico Bianchi <enrico.bianchi@ymail.com> - 2023-01-11 17:43 +0000

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