docker-compose图片，名为:"prefix_％s_1"而不是“％s" [英] docker-compose image named: "prefix_%s_1" instead of "%s"

问题描述

当我在带有链接的 docker-compose.yaml 文件中设置几个Docker容器时，这些容器的名称最终将以 prefix_％s_1 的格式显示而不是％s ，并且链接容器上的/etc/hosts 中的别名是相同的.

When I set up a couple of Docker containers in docker-compose.yaml file with links, the name of the containers ends up being of the format prefix_%s_1 instead of %s, and the alias in /etc/hosts on the linking container is the same.

为什么 redis 容器的别名 test_redis_1 而不是 redis ?

Why is the alias of the redis container test_redis_1 instead of redis?

以下是相关文件和输出:

Here are the relevant files and output:

# docker-compose.yaml
monkey:
    build: ../../monkey
    dockerfile: test.Dockerfile
    links:
      - redis:redis
    ports:
      - "9006:9006"

redis:
    build: ../storage/redis
    ports:
      - "6379:6379"

运行 docker-compose build&&之后docker-compose up :

$ docker-compose ps
Name           Command                        State  Ports
---------------------------------------------------------------------------
test_redis_1   redis-server /usr/local/et ...   Up   0.0.0.0:6379->6379/tcp
test_monkey_1  python -m SimpleHTTPServer ...   Up   0.0.0.0:9006->9006/tcp

test_monkey_1 容器的输出:

Step 14 : RUN cat /etc/hosts
 ---> Running in 1c104e3d9bf5
172.17.1.26     75a485df1325
127.0.0.1       localhost
::1     localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.17.1.26     thirsty_lumiere.bridge
172.17.0.220    test_redis_1
172.17.0.220    test_redis_1.bridge
172.17.1.26     thirsty_lumiere
 ---> 3a06bac9b3ca
Removing intermediate container 1c104e3d9bf5
Step 15 : RUN echo
 ---> Running in a1c5b5f8ae0f

 ---> 385c9ee44332
Removing intermediate container a1c5b5f8ae0f
Step 16 : RUN ifconfig eth0 | grep inet addr
 ---> Running in 17cd638c6473
          inet addr:172.17.1.28  Bcast:0.0.0.0  Mask:255.255.0.0
 ---> 21235e29abc1
Removing intermediate container 17cd638c6473
Step 17 : RUN echo
 ---> Running in 8c0b1db2a69b

 ---> e2dd190eb4d1
Removing intermediate container 8c0b1db2a69b
Step 18 : RUN env
 ---> Running in 50cd1b6bf9da
HOSTNAME=75a485df1325
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/data/web/tunnelbear.com/play/tPWD=/data/web/tunnelbear.com/root
_=/usr/bin/env

推荐答案

根据 docker撰写问题#745 :

默认情况下，Compose将项目名称基于从中运行目录撰写命令.项目名称可以是通过为每个传递-p/--project-name选项覆盖命令或设置COMPOSE_PROJECT_NAME环境变量.

By default, Compose bases the project name on basename of the directory compose commands are run from. The project name can be overridden either by passing a -p / --project-name option for each command or setting the COMPOSE_PROJECT_NAME environment variable.

您可以通过编写如下内容来为容器名称设置选择的前缀:

You can set the prefix of your choice to your container names by writing something like this:

$ docker-compose -p MY_PROJECT_NAME

相当于(更易读):

$ docker-compose --project-name MY_PROJECT_NAME

这篇关于docker-compose图片，名为:"prefix_％s_1"而不是“％s"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！