php deployer:ssh2_auth_pubkey_file()

最近安裝deployer這套工具，遇到了以下問題：
ssh2_auth_pubkey_file(): Authentication failed for xxxx using public key: Username/PublicKey combination invalid

解法：

cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys2 

參考：ssh2_auth_pubkey_file