自定义 Docker 守护程序选项（/etc/docker/daemon.json）

运行时目录和存储驱动程序

{
    "data-root": "/mnt/docker-data",
    "storage-driver": "overlay"
}

指定DNS服务器

{
    "dns": ["8.8.8.8", "8.8.4.4"]
}

配置日志驱动程序

json-file的日志格式为JSON，Docker的默认日志记录驱动程序。

{
    "registry-mirrors": [
        "https://<id>.mirror.aliyuncs.com"
    ],
    "insecure-registries": [
        "0.0.0.0/0"
    ],
    "log-driver": "json-file",
    "log-opts": {
        "max-size": "10m",
        "max-file": "3",
        "labels": "production_status",
        "env": "os,customer"
    }
}

Fluentd日志驱动程序：

{
  "log-driver": "fluentd",
  "log-opts": {
    "fluentd-address": "fluentdhost:24224"
  }
}