无法访问docker内创建的docker compose容器

docker-compose.yml 8800

version: '2'

services:
    echo-server:
        image: luisbebop/echo-server
        container_name: echo-server
        ports:
        - "8800:8800"

超级简单的东西。如果我跑步 docker-compose up

echo "Hello World" | nc 127.0.0.1 8800

然后我看到回声。 然而: 如果我在docker容器中通过GitLab runner运行相同的撰写场景,它就会失败。

https://gitlab.com/gitlab-org/gitlab-ce/issues/26566

.gitlab-ci.yml 文件看起来像:

---

stages:
  - docker_test

services:
  - docker:dind

docker_test:
  stage: docker_test
  image: docker:latest
  script:
  - docker version
  - apk update
  - apk add py-pip
  - pip install docker-compose
  - docker-compose up -d
  - sleep 10
  - netstat -tulpn
  - docker-compose port echo-server 8800
  - echo "Hello world" | nc 127.0.0.1 8800

以及 gitlab-ci-multi-runner exec docker --docker-privileged docker_test 是:

$ netstat -tulpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name

$ docker-compose port echo-server 8800
0.0.0.0:8800

$ echo "Hello world" | nc 127.0.0.1 8800
ERROR: Build failed: exit code 1

因此,这些端口似乎在docker容器中不可用,docker容器负责docker compose服务。我做错什么了吗?

不要 ,可用于该容器。

Host (My Mac) -> GitLab CI Container -> Docker Compose Container exposing 8800

  ^ Not here        ^ I want port 8800 accessible here 

此外,如果我将shell连接到正在运行的CI容器,我会看到:

/ # docker ps
CONTAINER ID        IMAGE                   COMMAND                  CREATED             STATUS              PORTS                    NAMES
ab192edf5872        luisbebop/echo-server   "/opt/echo-server/..."   2 minutes ago       Up About a minute   0.0.0.0:8800->8800/tcp   echo-server
/ # netstat -nltup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name