install cluster on one vm

[#1]

I am following

https://docs.hortonworks.com/HDPDocuments/Ambari-2.4.1.0/bk_ambari-installation/content/install_opti...

to setup a cluster on a vm. I am using localhost.localdomain but don't know how to setup the ssh credential. Since it is one vm setup, ambari server should not access the ambari agent host using ssh since they are on the same machine. What's the workaround here? Thanks for any help!

[#2 · Accepted solution]

@Lian Jiang

Password less ssh is not mandatory for agent installation. You can also install the ambari agent without setting up the password less ssh.

https://docs.hortonworks.com/HDPDocuments/Ambari-2.4.1.0/bk_ambari-reference/content/ch_amb_ref_inst...

.

If you want to setup password less ssh for local host then it is also possible too.

# ssh-keygen 
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): (I  kept it EMPTY)
Enter same passphrase again: (I  kept it EMPTY)
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.

 # ssh-copy-id -i ~/.ssh/id_rsa.pub localhost

 #  ssh root@localhost

.