在Docker容器中提取私有git回购

我试图将一个私有git回购拉入docker容器，我将下面的SSHKey和脚本添加到Dockerfile中，但不幸的是没有成功

ENV SSH_KEY #SSHKey-Here#

# Configure git user
RUN git config --global user.email "developer@domain.com" && \
    git config --global user.name "Docker Image"

# Authorize SSH Host
RUN mkdir -p /root/.ssh && \
    chmod 0700 /root/.ssh && \
    ssh-keyscan gitlabdomain.com > /root/.ssh/known_hosts &&\
    chmod 644 /root/.ssh/known_hosts

# Add the keys and set permissions
RUN eval `ssh-agent -s` && \
    echo "$SSH_KEY" > /root/.ssh/id_rsa && \
    chmod 600 /root/.ssh/id_rsa

作为测试，我运行以下命令：

docker exec php-container ssh -vT git@gitlabdomain.com

我得到以下错误：

OpenSSH_6.7p1 Debian-5+deb8u4, OpenSSL 1.0.1t  3 May 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to cgitlabdomain.com [xxx.xxx.x.xxx] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.7p1 Debian-5+deb8u4
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.10
debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.10 pat OpenSSH_6.6.1* compat 0x04000000
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr umac-64-etm@openssh.com none
debug1: kex: client->server aes128-ctr umac-64-etm@openssh.com none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA 28:3d:da:79:af:1d:28:44:d9:dc:01:55:7e:09:4b:3d
debug1: Host 'gitlabdomain.com' is known and matches the ECDSA host key.
debug1: Found key in /root/.ssh/known_hosts:2
Warning: Permanently added the ECDSA host key for IP address '188.166.30.98' to the list of known hosts.
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,password
debug1: Next authentication method: publickey
debug1: Trying private key: /root/.ssh/id_rsa
debug1: key_load_private_type: incorrect passphrase supplied to decrypt private key
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: Trying private key: /root/.ssh/id_ed25519
debug1: Next authentication method: password
debug1: read_passphrase: can't open /dev/tty: No such device or address
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
debug1: read_passphrase: can't open /dev/tty: No such device or address
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
debug1: read_passphrase: can't open /dev/tty: No such device or address
debug1: Authentications that can continue: publickey,password
debug1: No more authentication methods to try.
Permission denied (publickey,password).

我在谷歌上搜索了一下，尝试了一些建议，但似乎无法回避这些错误，我确信id_rsa文件确实存在，我的SSHKey也在其中，所以我不明白为什么会输出这些错误

任何帮助、建议和/或建议将不胜感激

亲切问候,

---

Lennart

从您的SSH输出来看，您似乎用密码短语保护了私钥：

debug1: Trying private key: /root/.ssh/id_rsa
debug1: key_load_private_type: incorrect passphrase supplied to decrypt private key

并且未提供此密码，因此无法使用私钥。您需要在容器中运行一个

ssh add

，并提供认证成功的密码

我建议作出以下改善：

• 即使docker映像只供内部使用，但在任何由多个用户共享的系统上的映像中存储ssh密钥也是一个坏主意。见和。 您可以改为使用Dockerfile创建图像，该文件将传入敏感参数：

  FROM library/centos
  
  RUN yum install -y git
  
  ARG HOME_DIR
  ARG USER_ID
  
  RUN echo "Setting up user $USER_ID with home directory: $HOME_DIR" \
    && useradd \
      --home-dir $HOME_DIR \
      --uid 1000 \
      $USER_DIR $USER_ID \
    && touch ${HOME_DIR}/entrypoint.sh \
    && mkdir -p ${HOME_DIR}/.ssh/ \
    && chown -R ${USER_ID}:${USER_ID} ${HOME_DIR} \
    && chmod -R 700 ${HOME_DIR}/.ssh \
    && touch ${HOME_DIR}/.ssh/id_rsa \
    && chmod 400 ${HOME_DIR}/.ssh/id_rsa \
    && chmod 777 ${HOME_DIR}/entrypoint.sh
  
  ENTRYPOINT ${HOME_DIR}/entrypoint.sh
  

• 创建在运行映像时传入的entrypoint.sh脚本。这将处理所有git初始化：

  # Setup Git Config
  echo "Setting Git Config Values"
  git config --global user.email "developer@domain.com" && \
      git config --global user.name "Docker Image"
  
  # Setup Git Folders
  echo "Adding Host Key for Github"
  cd /home/my_user/ \
    && ssh-keyscan gitlabdomain.com > /home/my_user/.ssh/known_hosts
  
  # Add ssh-key to SSH Agent
  echo "Adding SSH Key to ssh-agent" \
    && eval `ssh-agent -s` && ssh-add /home/my_user/.ssh/id_rsa
  
  # Cloning from remote repository
  git clone git@gitlabdomain.com
  # Prevent container from exiting
  tail -f /dev/null
  

• 然后，以交互式分离模式运行容器-这将允许您连接到容器并输入ssh密钥的密码短语
  还可以将所有敏感文件装载为只读卷，并以用户身份运行容器。这将确保文件只能由您访问：

  my_user$ docker run \
    -itd \
    -e "HOME_DIR=/home/my_user" \
    -e "USER_ID=my_user" \
    -v /home/my_user/.ssh/id_rsa:/home/my_user/.ssh/id_rsa:ro \
    -v /home/my_user/entrypoint.sh:/home/my_user/entrypoint.sh \
    --user my_user \
    myimage
  e4985a08a0d20f39414da801e9665abb364885052047f45e2f9943e7622c696b
  

• 最后，连接到容器以提供ssh密钥密码短语，并使用

  Ctrl-p

  ，

  Ctrl-Q

  分离：

  myuser$ docker attach e4985a08a0d20f39414da801e9665abb364885052047f45e2f9943e7622c696b
  <enter passphrase here>
  Identity added: /home/my_user/.ssh/id_rsa 
  (/home/my_user/.ssh/id_rsa)
  Cloning into 'my_repo'...
  Warning: Permanently added the RSA host key for IP address 'xx.xxx.xxx.xxx' to the list of known hosts.
  remote: Counting objects: 1014, done.
  remote: Total 1014 (delta 0), reused 0 (delta 0), pack-reused 1014
  Receiving objects: 100% (1014/1014), 3.48 MiB | 1.16 MiB/s, done.
  Resolving deltas: 100% (512/512), done.
  read escape sequence
  

  myuser$docker附件E4985A08A0D20F39414DA801E9665ABB36488505204747F45E2F9943E7622C696B
  添加的标识：/home/my\u user/.ssh/id\u rsa
  （/home/my_user/.ssh/id_rsa）
  克隆到“我的报告”。。。
  警告：已将IP地址“xx.xxx.xxx.xxx”的RSA主机密钥永久添加到已知主机列表中。
  远程：计数对象：1014，完成。
  远程：总计1014（增量0），重复使用0（增量0），包重复使用1014
  接收对象：100%（1014/1014），3.48 MiB | 1.16 MiB/s，完成。
  解析增量：100%（512/512），完成。
  读转义序列
  

---

或者，如果不想附加/分离，可以尝试从文件中传入密码短语。参见

你的实际目标是什么？您可能希望将

Dockerfile

和/或

docker compose.yml

放在现有存储库的根目录中。您不想尝试从您的

Dockerfile

中运行git操作，并且您肯定不想将ssh私钥添加到Docker映像（它将提供给获得Docker映像的任何人使用）。@DavidMaze我的实际目标是更新当前容器中的所有高级Wordpress插件，这些高级插件存在于私人回购协议中。Docker映像将仅用于内部使用，不会被推送/发布，因此我在实际dockerfile中添加了SSHKey。