今晚我已经阅读了很多关于同一件事的问题，但如果任何解决方案真的有效，我会被诅咒的。

简而言之，我需要将托管在 GitHub 上的私有(private) Git 存储库克隆到我的 docker 镜像中。

这是我目前在 Dockerfile 中的内容:

FROM debian:wheezy 
ENV DEBIAN_FRONTEND noninteractive 
 
# Update aptitude with new repo 
RUN apt-get update 
 
# Install software  
RUN apt-get install -y \  
    # All of my packages here... 
 
# Make ssh dir 
RUN mkdir /root/.ssh/ 
 
# Copy over private key, and set permissions 
ADD ssh/id_rsa /root/.ssh/id_rsa 
RUN chmod 700 /root/.ssh/id_rsa 
RUN touch /root/.ssh/known_hosts 
 
# Add GithHubs key 
RUN ssh-keyscan -T 60 github.com >> /root/.ssh/known_hosts 
 
# Create the Development directory and then move into the directory. 
RUN mkdir -p /var/www/dev 
WORKDIR /var/www/dev 
 
# Start-up Git and pull in the Dev branch. 
RUN ssh -v git@github.com 
#RUN git init 
#RUN git remote add origin git@github.com:<my_git_repo> 
#RUN git fetch 
#RUN git checkout -t origin/dev 
#RUN git clone git@github.com:<my_git_repo> 

OpenSSH_6.0p1 Debian-4+deb7u4, OpenSSL 1.0.1e 11 Feb 2013 
Pseudo-terminal will not be allocated because stdin is not a terminal. 
debug1: Reading configuration data /etc/ssh/ssh_config 
debug1: /etc/ssh/ssh_config line 19: Applying options for * 
debug1: Connecting to github.com [192.30.252.131] port 22. 
debug1: Connection established. 
debug1: permanently_set_uid: 0/0 
debug1: identity file /root/.ssh/id_rsa type -1 
debug1: identity file /root/.ssh/id_rsa-cert type -1 
debug1: identity file /root/.ssh/id_dsa type -1 
debug1: identity file /root/.ssh/id_dsa-cert type -1 
debug1: identity file /root/.ssh/id_ecdsa type -1 
debug1: identity file /root/.ssh/id_ecdsa-cert type -1 
debug1: Remote protocol version 2.0, remote software version libssh-0.7.0 
debug1: no match: libssh-0.7.0 
debug1: Enabling compatibility mode for protocol 2.0 
debug1: Local version string SSH-2.0-OpenSSH_6.0p1 Debian-4+deb7u4 
debug1: SSH2_MSG_KEXINIT sent 
debug1: SSH2_MSG_KEXINIT received 
debug1: kex: server->client aes128-ctr hmac-sha1 none 
debug1: kex: client->server aes128-ctr hmac-sha1 none 
debug1: sending SSH2_MSG_KEX_ECDH_INIT 
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY 
debug1: Server host key: RSA 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48 
debug1: Host 'github.com' is known and matches the RSA host key. 
debug1: Found key in /root/.ssh/known_hosts:1 
Warning: Permanently added the RSA host key for IP address '192.30.252.131' to the list of known hosts. 
debug1: ssh_rsa_verify: signature correct 
debug1: SSH2_MSG_NEWKEYS sent 
debug1: expecting SSH2_MSG_NEWKEYS 
debug1: SSH2_MSG_NEWKEYS received 
debug1: SSH2_MSG_SERVICE_REQUEST sent 
debug1: SSH2_MSG_SERVICE_ACCEPT received 
debug1: Authentications that can continue: publickey 
debug1: Next authentication method: publickey 
debug1: Trying private key: /root/.ssh/id_rsa 
debug1: key_parse_private_pem: PEM_read_PrivateKey failed 
debug1: read PEM private key done: type <unknown> 
debug1: read_passphrase: can't open /dev/tty: No such device or address 
debug1: Trying private key: /root/.ssh/id_dsa 
debug1: Trying private key: /root/.ssh/id_ecdsa 
debug1: No more authentication methods to try. 
Permission denied (publickey). 

请您参考如下方法:

使用 GitHub 个人访问 token 而不是 ssh key 可能会更好。

https://help.github.com/articles/creating-an-access-token-for-command-line-use/

这消除了您将 ssh key 烘焙到镜像中的需要，这样更安全，并且它允许通过 https 进行克隆，这应该会简化您的 dockerfile。如果您需要撤销 token ，可以从他们的网站上轻松完成，而且您无需到处更换您的个人 ssh key 。

如果您查看了此选项，但无法使用此选项，请告诉我，我可以帮助您找出 ssh key 问题。