Github 使用 Deploy Key 存取 repo

打算將私有 repo 提供唯獨權限給特定對象, 但 Github 的 personal access token 並不提供這樣針對特定 repo 的唯獨權限設定, 後來發現似乎可以使用 repo 內的 Deploy Key 來達成.

• Exp. [email protected] / 不需要密碼

  ssh-keygen -t rsa -b 4096 -C "[email protected]"

• 觀看執行結果

  /home/mytest$ ssh-keygen -t rsa -b 4096 -C "[email protected]"
  Generating public/private rsa key pair.
  Enter file in which to save the key (/home/mytest/.ssh/id_rsa):
  Created directory '/home/mytest/.ssh'.
  Enter passphrase (empty for no passphrase):
  Enter same passphrase again:
  Your identification has been saved in /home/mytest/.ssh/id_rsa
  Your public key has been saved in /home/mytest/.ssh/id_rsa.pub
  The key fingerprint is:
  SHA256:kLtdpnYOPVmTfTxxxxxxxxxxxxxxxxxx/jEYf7eCRzU [email protected]
  The key's randomart image is:
  +---[RSA 4096]----+
  |          ...= EX|
  |       .   .o @+X|
  |      o      =+X*|
  |       o    ooo+O|
  |      . S o.+o.oo|
  |       o = o.... |
  |      . = =      |
  |       . + .     |
  |          .      |
  +----[SHA256]-----+

• 將剛剛產生的 pub 貼上 GitHub Deploy Key 內

  cat .ssh/id_rsa.pub

• 

• 確認剛剛產生的 key 是否在預設路徑 Exp. /home/mytest/.ssh/id_rsa

• ssh -T [email protected]

  • 看檢查訊息

    /home/mytest$ ssh -T [email protected]
    The authenticity of host 'github.com (52.69.186.44)' can't be established.
    RSA key fingerprint is SHA256:nThbg6kxxxxxxxxxxxxxxxxxxxxdCARLviKw6E5SY8.
    Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
    Warning: Permanently added 'github.com,52.69.186.44' (RSA) to the list of known hosts.
    Hi iii-org/devops-ui! You've successfully authenticated, but GitHub does not provide shell access.

• zhujunsan/Using Github Deploy Key.md