<\/p>\n
Sometimes you need to work with the command line interface in OVM Manager, for instance if you want to execute several commands in parallel, and it is very hard and boring if you need to put the password each time:<\/p>\n
[root@ovmmanager1 ~]# ssh -l admin localhost -p 10000\r\nadmin@localhost's password:\r\nOVM><\/pre>\n<\/p>\n
Well, here I explain how to configure the access without put the password:<\/p>\n
1) ssh<\/p>\n
[root@ovmmanager1 ~]# ssh-keygen -t rsa -f ~\/.ssh\/admin\r\nGenerating public\/private rsa key pair.\r\nCreated directory '\/root\/.ssh'.\r\nEnter passphrase (empty for no passphrase):\r\nEnter same passphrase again:\r\nYour identification has been saved in \/root\/.ssh\/admin.\r\nYour public key has been saved in \/root\/.ssh\/admin.pub.\r\nThe key fingerprint is:\r\nSHA256:MTxnKUOehUqMlXfTRpj3Jy7SLRoszH\/EmcIWgk5J\/jo root@ovmmanager1\r\nThe key's randomart image is:\r\n+---[RSA 2048]----+\r\n| +.....=. |\r\n| . =+oo=.+ |\r\n| + =X.++ . |\r\n| * .O. o .|\r\n| o +S+ + = o |\r\n| . = B O o |\r\n| . + * o |\r\n| E o . |\r\n| . . |\r\n+----[SHA256]-----+\r\n\r\n[root@ovmmanager1 ~]# cat \/root\/.ssh\/admin.pub > \/home\/oracle\/.ssh\/ovmcli_authorized_keys\r\n\r\n[root@ovmmanager1 ~]# eval `ssh-agent`\r\nAgent pid 865\r\n\r\n[root@ovmmanager1 ~]# ssh-add ~\/.ssh\/admin\r\nIdentity added: \/root\/.ssh\/admin (\/root\/.ssh\/admin)\r\n\r\n[root@ovmmanager1 ~]# ssh admin@ovmmanager1 -p 10000\r\nThe authenticity of host '[ovmmanager1]:10000 ([192.168.115.40]:10000)' can't be established.\r\nRSA key fingerprint is SHA256:3rw6ji5BCr3PeAcsKStsk8GrNU8mVaqGiC3dc\/rSxC0.\r\nRSA key fingerprint is MD5:f1:0b:f7:8f:39:e5:75:a4:e0:6e:a2:59:d8:fc:d5:32.\r\nAre you sure you want to continue connecting (yes\/no)? yes\r\nWarning: Permanently added '[ovmmanager1]:10000,[192.168.115.40]:10000' (RSA) to the list of known hosts.\r\nOVM>\r\n\r\n<\/pre>\n<\/p>\n
2) script<\/p>\n
[root@ovmmanager1 ~]# cat ovmcli.sh\r\n#!\/bin\/bash\r\neval `ssh-agent` >> \/dev\/null 2>&1\r\nssh-add ~\/.ssh\/admin >> \/dev\/null 2>&1\r\nexport ovmUser=admin\r\nexport adminServer=ovmmanager1\r\nOVMCLI=\"ssh -o ServerAliveInterval=40 $ovmUser@$adminServer -p 10000\"\r\n\r\n$OVMCLI $@\r\nssh-agent -k >> \/dev\/null 2>&1\r\n<\/pre>\n<\/p>\n
One of the most important parts in the script, is the last command (which remove the process ‘ssh-agent’ created at the beginning), without this command, the operating system would be slowed down accumulating the processes ‘ssh-agent’.<\/p>\n
<\/p>\n
3) permissions<\/p>\n
[root@ovmmanager1 ~]# chmod 700 ovmcli.sh<\/pre>\n<\/p>\n
4) alias<\/p>\n
alias ovmcli='\/root\/.\/ovmcli.sh'<\/pre>\n<\/p>\n
The alias you can add it to the end of the file .bashrc into the $HOME for the user.<\/p>\n
<\/p>\n
If you execute it, you gain access immediatly:<\/p>\n
[root@ovmmanager1 ~]# ovmcli\r\nOVM><\/pre>\n<\/p>\n
You can put commands directly in the OS prompt:<\/p>\n
[root@ovmmanager1 ~]# ovmcli list server\r\nOVM> list server\r\nCommand: list server\r\nStatus: Success\r\nTime: 2019-01-08 22:32:38,899 CET\r\nData:\r\nid:37:38:36:38:33:30:5a:43:32:38:33:38:30:31:32:33 name:ovmsrv02\r\nid:37:38:36:38:33:30:5a:43:32:38:33:38:30:31:32:32 name:ovmsrv01\r\nOVM> Connection closed.\r\n<\/pre>\n<\/p>\n
If you want configure the script for ‘oracle’ user, you can follow the same steps \ud83d\ude42<\/p>\n
<\/p>\n