我如何登录到一个Gitlab CI容器?

我需要通过composer从Gitlab CI的公司命名空间安装一个私有包。

composer.json.

"repositories": [
{
"type": "git",
"url": "git@gitlab.com:namespace/package.git"
}
],
"require": {
"namespace/package": "dev-master",
}

在.gitlab.ci.yml

image: registry.gitlab.com/namespace/project:1.0.0
stages:
- deploy
.setup_ssh: &setup_ssh
- 'command -v ssh-agent >/dev/null || ( apt-get update -y && apt-get install openssh-client zip unzip -y )'
- eval $(ssh-agent -s)
- mkdir -p ~/.ssh
- chmod 700 ~/.ssh
- echo "$SSH_PUBLIC_KEY" > ~/.ssh/id_rsa.pub
- echo "$SSH_PRIVATE_KEY" | base64 -d > ~/.ssh/id_rsa
- ssh-keyscan gitlab.com >> ~/.ssh/known_hosts
- ssh-keyscan $DEV_HOST >> ~/.ssh/known_hosts
- chmod 600 ~/.ssh/id_rsa
- chmod 600 ~/.ssh/id_rsa.pub
- chmod 644 ~/.ssh/known_hosts
- ssh-add ~/.ssh/id_rsa
.setup_composer: &setup_composer
- composer i -n
deploy to dev:
stage: deploy
script:
- *setup_ssh
- *setup_composer

在私有包上安装composer i -n会崩溃。

克隆到裸存储库'/root/.composer/cache/vcs/git-gitlab.com-namespace-package.git'…远程:远程 : ========================================================================远程:remote:您正在寻找的项目找不到，或者您没有权限查看它。远程:远程 : ========================================================================远程:致命:无法从远程存储库读取。请确保您有正确的访问权限

我尝试在本地运行容器，并在容器内交互式地安装编写器依赖项。