gitlab-ci.yml和docker-in-docker（dind）＆curl返回共享运行器上的连接被拒绝

Question

我正在尝试创建一个简单的GitLab CI，在其中我使用docker-compose up旋转一个容器，然后尝试使用curl对其进行访问，最后使用docker-compose down将其拆解。 docker-compose up旋转得非常好，我可以使用docker ps -a看到容器，但是当我卷曲时，我会收到“连接被拒绝”的信息。

这是我的gitlab-ci.yml

rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb, Rakefile.rb)
/home/travis/.rvm/gems/ruby-2.4.1@global/gems/rake- 12.3.0/exe/rake:27:in `<top (required)>'
(See full trace by running task with --trace)
The command "rake" exited with 1.
Done. Your build exited with 1.

这是跑步者的日志

image: docker

services:
 - docker:dind

before_script:
 - apk add --update python py-pip python-dev && pip install docker-compose
 - apk add --update curl && rm -rf /var/cache/apk/*

stages:
 - test

test:
 stage: test
 script:
  - docker-compose up -d
  - docker ps -a
  - curl http://localhost:5000/api/values
  - docker-compose down

Docker Compose：

Image for service testwebapp was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
Creating test-container ... 

Creating test-container ... done
$ docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                  PORTS                    NAMES
3423adfb1f3b        mytestwebapp        "dotnet TestWebApp.d…"   1 second ago        Up Less than a second   0.0.0.0:5000->5000/tcp   test-container
$ curl http://localhost:5000/api/values
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (7) Failed to connect to localhost port 5000: Connection refused
ERROR: Job failed: exit code 7

Docker撰写替代：

version: '3.4'

services:
  testwebapp:
    image: mytestwebapp
    build:
      context: .
      dockerfile: TestWebApp/Dockerfile
    container_name: test-container

Answer 1

更新您的gitlab-ci.yml文件：

在运行sleep 15之前

1. 设置curl。 15是您可以正确启动服务的任意时间（以秒为单位）。

2. 接下来，有2个选项：

选项1 ： 将localhost中的curl http://localhost:5000/api/values替换为docker curl http://docker:5000/api/values

选项2 ：

services:
  - name: docker:dind
    alias: localhost