关於Docker的Logging Driver

by Devin Yang

建立于: 6年前 ( 更新: 6年前 )

Docker内建相当多的日志机制，帮我们取得在container内运行的服务信息。
这些机制(mechanisms)我们通常称为logging drivers.

如果要变更默认的日志日志驱动进程(logging drivers)，可在daemon.json文档设置login-driver进程的名称。这个文件通常放在linux系统的/etc/docker目录下，或在Windows则是C:\ProgramData\docker\config\
Docker默认的logging driver是json-file，把他变更为syslog。

在MacOS的系统，可以由Docker喜好设置进行设更:
daemon.json

重启后会发觉日志日志变到了syslog了。

关於更多的Docker Deamon组态设置，可以参考官方连结:
https://docs.docker.com/engine/reference/commandline/dockerd/#daemon-configuration-file

用命令来查询默认的Logging Driver.
docker info |grep Logging

下方为支持的Loggin drivers列表:

Driver	Description
`none`	No logs will be available for the container and `docker logs` will not return any output.
`json-file`	The logs are formatted as JSON. The default logging driver for Docker.
`syslog`	Writes logging messages to the `syslog` facility. The `syslog` daemon must be running on the host machine.
`journald`	Writes log messages to `journald` . The `journald` daemon must be running on the host machine.
`gelf`	Writes log messages to a Graylog Extended Log Format (GELF) endpoint such as Graylog or Logstash.
`fluentd`	Writes log messages to `fluentd` (forward input). The `fluentd` daemon must be running on the host machine.
`awslogs`	Writes log messages to Amazon CloudWatch Logs.
`splunk`	Writes log messages to `splunk` using the HTTP Event Collector.
`etwlogs`	Writes log messages as Event Tracing for Windows (ETW) events. Only available on Windows platforms.
`gcplogs`	Writes log messages to Google Cloud Platform (GCP) Logging.
`logentries`	Writes log messages to Rapid7 Logentries.