使用 Capistrano 通过 SSH 连接到 Bitbucket 时出错

Question

我是 Rails、Git 和 Capistrano 尝试部署我的第一个应用程序的初学者。

我已经设置了一个安装了Ubuntu、Nginx 和Unicorn 的VPS，现在希望使用Capistrano 进行部署。我的应用程序存储在 Bitbucket 存储库中。

为了检查我是否正确设置了Capistrano，我运行了以下命令。

$ cap production git:check 和 $ cap production deploy:check

然而，这些给了我以下错误：

INFO [c65cf8c7] Running /usr/bin/env mkdir -p /tmp/testapp/ as developer@[IP]
DEBUG [c65cf8c7] Command: /usr/bin/env mkdir -p /tmp/testapp/
Text will be echoed in the clear. Please install the HighLine or Termios libraries to suppress echoed text.
developer@[IP]'s password: [password]
INFO [c65cf8c7] Finished in 31.340 seconds with exit status 0 (successful).
DEBUG Uploading /tmp/testapp/git-ssh.sh 0.0%
INFO Uploading /tmp/testapp/git-ssh.sh 100.0%
INFO [2dbfc686] Running /usr/bin/env chmod +x /tmp/testapp/git-ssh.sh as developer@[IP]
DEBUG [2dbfc686] Command: /usr/bin/env chmod +x /tmp/testapp/git-ssh.sh
INFO [2dbfc686] Finished in 0.017 seconds with exit status 0 (successful).
INFO [b0c6add8] Running /usr/bin/env git ls-remote --heads git@bitbucket.org:[USER]/testapp.git as developer@[IP]
DEBUG [b0c6add8] Command: ( export GIT_ASKPASS="/bin/echo" GIT_SSH="/tmp/testapp/git-ssh.sh" ; /usr/bin/env git ls-remote --heads git@bitbucket.org:[USER]/testapp.git )
DEBUG [b0c6add8]        Warning: Permanently added 'bitbucket.org,104.192.143.3' (RSA) to the list of known hosts.
DEBUG [b0c6add8]        Error reading response length from authentication socket.
DEBUG [b0c6add8]        Permission denied (publickey).
DEBUG [b0c6add8]        fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
(Backtrace restricted to imported tasks)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as developer@[IP]: git exit status: 128
git stdout: Nothing written
git stderr: Warning: Permanently added 'bitbucket.org,104.192.143.3' (RSA) to the list of known hosts.
Error reading response length from authentication socket.
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

SSHKit::Command::Failed: git exit status: 128
git stdout: Nothing written
git stderr: Warning: Permanently added 'bitbucket.org,104.192.143.3' (RSA) to the list of known hosts.
Error reading response length from authentication socket.
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Tasks: TOP => git:check
(See full trace by running task with --trace)

我的 git 存储库中的 SSH 身份验证、标准 git 命令（如 push 或 pull）似乎出了点问题。

从我的本地机器$ ssh -T git@bitbucket.com 告诉我：

Warning: Permanently added the RSA host key for IP address '104.192.143.7' to the list of known hosts.
logged in as [USER].  
You can use git or hg to connect to Bitbucket. Shell access is disabled.

来自我的developer@vps 帐户：ssh -T git@bitbucket.com

Warning: Permanently added the RSA host key for IP address '104.192.143.7' to the list of known hosts.
Permission denied (publickey).

有什么想法吗？

Answer 1

Capistrano 尝试在 部署目标（即 VPS）签出 git 存储库。因此，您需要从 VPS 机器获得到 bitbucket 的 ssh 连接。

我猜你的 ssh 身份在本地主机和 VPS 上是不同的，并且你只在 bitbucket 中配置了本地机器 ssh 密钥。

您能否比较本地计算机上的~/.ssh/id_rsa.pub 和在您的VPS 上登录为developer 的情况？如果密钥不同，您需要将 VPS 中的公共 ssh 密钥（id_rsa.pub 文件）添加到 bitbucket 配置中，以便您可以使用 ssh 从您的 VPS 连接到 bitbucket。