March 7, 2021.

• Maybe docker have some change: Now we should use -tt instead of -it to the command

                      ssh -i .ssh/ubuntu_sinnud.pem sinnud@192.168.1.213 sudo docker exec -tt greenplum su - gpadmin /code/scripts/gpinit2.bash
                      
                  

• 将docker命令写入无密码sudo中：sudo visudo在编辑器中加入一行 (Run sudo visudo to add the line below such that user sinnud can run sudo docker without password)

                  sinnud ALL=(ALL) NOPASSWD:/bin/docker
                  
              

• 命令：(The following command)

                      ssh -i .ssh/ubuntu_sinnud.pem sinnud@192.168.1.213 sudo docker exec -it greenplum su - gpadmin /code/scripts/gpinit2.bash
                      
                  

  会出错：(will error out:)

                      the input device is not a TTY
                      
                  

  需要改成：(Need to be changed from -it to -tty)

                      ssh -i .ssh/ubuntu_sinnud.pem sinnud@192.168.1.213 sudo docker exec -tty greenplum su - gpadmin /code/scripts/gpinit2.bash