docker - gitlab-ci.yml & docker-in-docker (dind) & curl 在共享运行器上返回连接被拒绝

Question

我正在尝试创建一个简单的 GitLab CI，在其中使用 docker-compose up 启动一个容器，然后尝试使用 curl 访问它，最后使用 docker-compose down 将其拆除。 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 curl 时，我得到“连接被拒绝”。

这是我的 gitlab-ci.yml

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

这是运行者的日志

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 组合:

version: '3.4'

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

Docker 撰写覆盖:

version: '3.4'

services:
  testwebapp:
    environment:
      - ASPNETCORE_ENVIRONMENT=Development
      - ASPNETCORE_URLS=http://0.0.0.0:5000
    ports:
      - "5000:5000"

Answer 1

更新您的 gitlab-ci.yml文件:

套装sleep 15运行前 curl . 15 是您的服务应该准确启动的任意时间段(以秒为单位)。

接下来，有两个选项:

选项 1 :
替换 localhost在 curl http://localhost:5000/api/values与 docker像这样 curl http://docker:5000/api/values
选项 2 :

services:
  - name: docker:dind
    alias: localhost