CP-13124: Use SSH private key for docker guest VM authentication.
CP-13124: Use SSH private key for docker guest VM authentication.

1. Specify the key file location and name.
2. Update of the file name of docker command.

Signed-off-by: Hui Zhang <1290dea41121f0a9caa715ba0808e38da438ab06@citrix.com>

cheng--zhang/xenadmin,jijiang/xenadmin,letsboogey/xenadmin,xenserver/xenadmin,huizh/xenadmin,geosharath/xenadmin,cheng-z/xenadmin,stephen-turner/xenadmin,GaborApatiNagy/xenadmin,letsboogey/xenadmin,stephen-turner/xenadmin,Frezzle/xenadmin,GaborApatiNagy/xenadmin,jijiang/xenadmin,minli1/xenadmin,GaborApatiNagy/xenadmin,stephen-turner/xenadmin,letsboogey/xenadmin,stephen-turner/xenadmin,xenserver/xenadmin,minli1/xenadmin,MihaelaStoica/xenadmin,ushamandya/xenadmin,stephen-turner/xenadmin,Frezzle/xenadmin,kc284/xenadmin,cheng--zhang/xenadmin,kc284/xenadmin,kc284/xenadmin,huizh/xenadmin,huizh/xenadmin,cheng-z/xenadmin,cheng-z/xenadmin,ushamandya/xenadmin,cheng-z/xenadmin,MihaelaStoica/xenadmin,letsboogey/xenadmin,Frezzle/xenadmin,cheng--zhang/xenadmin,GaborApatiNagy/xenadmin,robhoes/xenadmin,xenserver/xenadmin,MihaelaStoica/xenadmin,geosharath/xenadmin,stephen-turner/xenadmin,GaborApatiNagy/xenadmin,minli1/xenadmin,robhoes/xenadmin,Frezzle/xenadmin,geosharath/xenadmin,minli1/xenadmin,cheng-z/xenadmin,ushamandya/xenadmin,ushamandya/xenadmin,GaborApatiNagy/xenadmin,kc284/xenadmin,robhoes/xenadmin,jijiang/xenadmin,robhoes/xenadmin,geosharath/xenadmin,ushamandya/xenadmin,geosharath/xenadmin,letsboogey/xenadmin,MihaelaStoica/xenadmin,cheng--zhang/xenadmin,robhoes/xenadmin,minli1/xenadmin,MihaelaStoica/xenadmin,jijiang/xenadmin,geosharath/xenadmin,huizh/xenadmin,cheng--zhang/xenadmin,Frezzle/xenadmin,jijiang/xenadmin,robhoes/xenadmin,huizh/xenadmin,cheng--zhang/xenadmin,Frezzle/xenadmin,cheng-z/xenadmin,ushamandya/xenadmin,letsboogey/xenadmin,minli1/xenadmin,MihaelaStoica/xenadmin,jijiang/xenadmin,kc284/xenadmin,huizh/xenadmin