8

The docker docs said:

To configure the Docker daemon to default to a specific logging driver, set the value of log-driver to the name of the logging driver in the daemon.json file, which is located in /etc/docker/ on Linux hosts or C:\ProgramData\docker\config\ on Windows server hosts. Note that you should create daemon.json file, if the file does not exist. The default logging driver is json-file. ...

enter image description here

BUT, WHY? Why on CentOS 7, it default use journald? I never specify log-driver in my docker-compose.yml

enter image description here

Improve this question

1 Answer 1

Reset to default
3

Have a look into /etc/sysconfig/docker.

You might find among the list of options, the --log-driver being set to journald:

OPTIONS='... --log-driver=journald ...'

Either delete the --log-driver=journald and it will default to json-file, or chose another logging driver that fits your needs.

Reload the daemon and check if the problem persists:

systemctl daemon-reload && systemctl restart docker
Improve this answer
Sign up to request clarification or add additional context in comments.

3 Comments

So, who changed the default behavior?
I do not have a CentOS installed, neither I know how the docker was exactly installed in your context, to reproduce and trace that, but the idea is that your SystemD service unit is loading the config from that file, and that file is setting the --log-driver=journald
I install docker & docker-compose by yum install docker docker-compose. And I make it auto start at boot by systemctl enable docker.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.