在gitlab ci中使用ssh将docker编写到远程主机失败

Question

我无法从gitlab CI/CD管道运行程序使用SSH在远程主机上成功docker compose。

docker compose失败，出现以下错误：

http.client.RemoteDisconnected: Remote end closed connection without response
urllib3.exceptions.ProtocolError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))
requests.exceptions.ConnectionError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))

我不能在Gitlab之外重现这个问题。意思是，我尝试在我的本地机器上运行相同的docker映像我的gitlab部署步骤使用，在我的脚本中手动执行完全相同的命令，它像一个魅力...

我甚至通过连接到主机并打印docker version来尝试脚本中的ssh配置，并且成功。

#!/bin/bash

apk update
apk add openssh-client
apk add --update bash

eval $(ssh-agent -s)
mkdir -p ~/.ssh
chmod 600 ~/.ssh
# copy the server private key
echo "$SSH_PRIVATE_KEY"
echo "$SSH_PRIVATE_KEY" | ssh-add -
# copy server host key .pub file from /etc/ssh/ and paste it into this variable
echo "$SSH_SERVER_HOSTKEYS"
ssh-keyscan -p 12345 11.222.3.444
ssh-keyscan -p 12345 11.222.3.444 >> ~/.ssh/known_hosts

ssh root@11.222.3.444 -p 12345 "docker version; exit"

# Docker-compose app and db
docker-compose --verbose -H "ssh://root@11.222.3.444:12345" -f docker-compose.staging.yml up -d --build

exit

image: alpine:latest

services:
  - docker:dind

stages:
  - build
  - package
  - deploy

[...]

deploy:
  image: docker/compose:alpine-1.28.2
  stage: deploy
  environment:
    name: staging
  only:
    - master
  script:
    - sh deploy_to_staging.sh

多谢你的帮忙

Answer 1

我遇到了这个确切的问题，这取决于您的配置，它可能工作或不工作。基本上，我在我的服务器上创建了一个用户deployer，我正试图通过ssh连接到该服务器。

因为我忘了将这个新用户（deployer）添加到docker用户组，所以他没有docker权限。所以基本上我所做的就是

[root@myserver ~]# groupadd docker
groupadd: group 'docker' already exists
[root@myserver ~]# usermod -aG docker deployer