json - docker-compose json 日志记录驱动程序标签/环境

Question

我一直在尝试以以下格式获取日志:

{"log":"Using CATALINA_BASE:   /opt/apache-tomcat-
7.0.76\r\n","stream":"stdout","time":"2017-04-
19T04:28:33.608418994Z","attrs":
{"production_status":"testing","os":"ubuntu"}}

我正在使用 docker-compose.yml :

version: '2.1'
services:
  web:
    image: hello-world/web:latest
    container_name: api
    ports:
      - "80:8080"
logging:
  driver: "json-file"
  options:
    max-size: 10m
    max-file: "3"
    labels: testing
    env: ubuntu

但是我没有在日志中得到“attrs”键。我究竟做错了什么？

Answer 1

根据我的测试，有 2 个部分可以让标签/环境变量显示在日志中。

指定要在日志中显示的标签/环境变量

在容器上设置这些标签/环境变量

所以，为了得到你想要的，你需要将 docker-compose.yml 设置为:

version: '2.1'
services:
  web:
    image: hello-world/web:latest
    container_name: api
    ports:
      - "80:8080"
    logging:
      driver: "json-file"
      options:
        max-size: 10m
        max-file: "3"
        labels: "production_status"
        env: "os"
    labels:
      production_status: "testing"
    environment:
      - os=ubuntu