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无法让dep和dockerize在docker compose中一起工作(但它们单独工作)。为什么?

docker-compose go docker

Escher · 技术社区 · 7 年前

我有一个奇怪的情况,我的docker compose build在我使用 dockerize 等待数据库等准备就绪,并使用 dep 加载我的go依赖项。

下面是docker-compose.yml的摘录(除了下面显示的golang容器外,还有mosquito、postgres和python容器)

version '3.3'
services:

   foobar_container:
     image: foobar_image
     container_name: foobar
     build:
      context: ./build_foobar
      dockerfile: Dockerfile.foobar
     #command: dockerize -wait tcp://mosquitto:1883 -wait tcp://postgres:5432 -timeout 200s /go/src/foobar/main
     volumes:
       - ./foobar:/go
     stdin_open: true
     tty: true
     external_links:
       - mosquitto
       - postgres
     ports:
       - 1833
       - 8001
     depends_on:
       - mosquitto
       - postgres

这是我的dockerfile.foobar

FROM golang:latest
 WORKDIR /go
 RUN apt-get update && apt-get install -y wget mosquitto-clients net-tools
 ENV DOCKERIZE_VERSION v0.6.0
 RUN wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
   && tar -C /usr/local/bin -xzvf dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
   && rm dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz
 ADD foobar.sh /foobar.sh
 #RUN go build main.go
 RUN chmod +x /foobar.sh

这是我的构建脚本foobar.sh:

#!/bin/bash

mkdir -p /go/bin # required directory that may have been overwriten by docker-compose `volumes` param
echo "++++++++ Downloading Golang dependencies ... ++++++++"
cd /go/src/foobar
curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
echo "++++++++ Installing Golang dependencies ... ++++++++"
dep ensure
echo "++++++++ Testing MQTT message broker ... ++++++++"
until [[ $(mosquitto_sub -h "mosquitto" -t '$SYS/#' -C 1 | cut -c 1-9) = "mosquitto" ]]; do
    echo "++++++++ Message broker is not ready. Waiting one second... ++++++++"
    sleep 1
done
echo "++++++++ Building application... ++++++++" 
go build main.go

如果我取消注释 command 线 docker-compose.yml 我的 foobar.sh 不会跑过去的 curl 线。没有输出错误,只是停止执行。如果我的评论来自 卷曲 继续,取消注释 命令 行,我可以设置为完成(但是 foobar 容器需要手动启动)。我的python容器(取决于所有postgres、go和mosquitto容器)设置得很好。

怎么了?

1 回复 | 直到 7 年前

Carlos Frias 7 年前

我发现了两件事,首先是执行命令,你必须确保 foobar.sh 先执行。作为另一个建议,我不会忽略整个 /go 容器中的文件夹使用卷,而不是使用另一个子文件夹,例如 /go/github.com/my-project . 我使用此配置运行了一个应用程序,基于您的:

build_foobar/Dockerfile.foobar :

FROM golang:latest
WORKDIR /go
RUN apt-get update && apt-get install -y wget mosquitto-clients net-tools
ENV DOCKERIZE_VERSION v0.6.0
RUN wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
        && tar -C /usr/local/bin -xzvf dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
        && rm dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz
ADD foobar.sh /foobar.sh
# RUN go build main.go
RUN chmod +x /foobar.sh

build_foobar/foobar.sh :

#!/bin/bash

# mkdir -p /go/bin # required directory that may have been overwriten by docker-compose `volumes` param
echo "++++++++ Downloading Golang dependencies ... ++++++++"
cd /go/src/foobar
curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
echo "++++++++ Installing Golang dependencies ... ++++++++"
dep ensure
echo "++++++++ Testing MQTT message broker ... ++++++++"
until [[ $(mosquitto_sub -h "mosquitto" -t '$SYS/#' -C 1 | cut -c 1-9) = "mosquitto" ]]; do
    echo "++++++++ Message broker is not ready. Waiting one second... ++++++++"
    sleep 1
done
echo "++++++++ Building application... ++++++++" 
go build main.go

dockerize -wait tcp://mosquitto:1883 -wait tcp://postgres:5432 -timeout 200s /go/src/foobar/main

foobar/main.go :放置应用程序主文件

docker-compose.yml :

version: '3.3'
services:
  foobar_container:
    image: foobar_image
    container_name: foobar
    build:
      context: ./build_foobar
      dockerfile: Dockerfile.foobar
    # command: dockerize -wait tcp://mosquitto:1883 -wait tcp://postgres:5432 -timeout 200s /go/src/foobar/main
    # command: /bin/bash
    command: /foobar.sh
    volumes:
      - ./foobar:/go/src/foobar
    stdin_open: true
    tty: true
    external_links:
      - mosquitto
      - postgres
    depends_on:
      - mosquitto
      - postgres
    ports:
      - 1833
      - 8001
  mosquitto:
    image: eclipse-mosquitto
  postgres:
    image: postgres