Yong Tang 38c49d9987 Remove docker/ prefix from log messages tag. ... This fix tries to address the issue raised in #22358 where syslog's message tag always starts with `docker/` and can not be removed by changing the log tag templates. The issue is that syslog driver hardcodes `path.Base(os.Args[0])` as the prefix, which is the binary file name of the daemon (`dockerd`). This could be an issue for certain situations (e.g., #22358) where user may prefer not to have a dedicated prefix in syslog messages. There is no way to override this behavior in the current verison of the docker. This fix tries to address this issue without making changes in the default behavior of the syslog driver. An additional `{{.DaemonName}}` has been introduced in the syslog tag. This is assigned as the `docker` when daemon starts. The default log tag template has also been changed from `path.Base(os.Args[0]) + "/{{.ID}}"` to `{{.DaemonName}}/{{.ID}}`. Therefore, there is no behavior changes when log-tag is not provided. In order to be consistent, the default log tag for fluentd has been changed from `docker.{{.ID}}` to `{{DaemonName}}.{{.ID}}` as well. The documentation for log-tag has been updated to reflect this change. Additional test cases have been added to cover changes in this fix. This fix fixes #22358. Signed-off-by: Yong Tang <yong.tang.github@outlook.com>		2016-05-12 22:29:30 -07:00
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fluentd.go	Remove docker/ prefix from log messages tag.	2016-05-12 22:29:30 -07:00