Docker Deploy堆栈额外的主机被忽略 [英] Docker Deploy stack extra hosts ignored

问题描述

docker stack deploy不尊重我撰写文件中的extra_hosts参数。当我执行一个简单的docker-compose up时，该条目会在/ etc / hosts中创建，但是当我执行docker deploy –compose-file docker-compose.yml myapp时，它将忽略extra_hosts，有何见解？
以下是docker-compose.xml：

docker stack deploy isnt respecting the extra_hosts parameter in my compose file. when i do a simple docker-compose up the entry is created in the /etc/hosts however when i do docker deploy –compose-file docker-compose.yml myapp it ignores extra_hosts, any insights? Below is the docker-compose.xml:

version: '3'
services:
  web:
    image: user-service
    deploy:
      labels: 
       - the label
    build:
       context: ./
    environment:
      DATABASE_URL: jdbc:postgresql://dbhost:5432/postgres
    ports:
      - 9002:9002
    extra_hosts:
      - "dbhost: ${DB_HOST}"
    networks:
      - wellness_swarm
    env_file:
      - .env
networks:
  wellness_swarm:
    external:
      name: wellness_swarm

docker-compose配置还可以正确显示撰写文件。

the docker-compose config also displays the compose file properly.

推荐答案

这可能不是对问题的直接答案，因为它不使用env变量，但是我发现在compose文件中的extra_hosts块是如果以上述格式输入，在群模式下将被忽略。

This may not be a direct answer to the question as it doesn't use env variables but what I found was that the extra_hosts block in the compose file was ignored in swarm mode if entered in the format above.

ie这对我有用，并将条目放在容器的/ etc / hosts中：

i.e. this works for me and puts entries in /etc/hosts in the container:

    extra_hosts:
      retisdev: 10.48.161.44
      retistesting: 10.48.161.44

而以其他格式输入时，在以下情况下将被忽略部署为服务

whereas when entered in the other format it gets ignored when deploying as a service

    extra_hosts:
      - "retisdev=10.48.161.44"
      - "retistesting=10.48.161.44"

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