![]() root_password will be the password which will be used to login to the nodes for copying the ssh public key.įull playbook can be found in this git repo ansible-password-less-ssh. ![]() You can add the -oStrictHostKe圜heckingno option as arg for the ssh-copy-id command to make this work. ssh-copy-id joe144.38.196.16 will copy my current key. if you get silent fail it is probably checking for known hosts - if you just try and ssh to the host you might tsee the prompt to accept unknown host and add to known hosts. Here as you see, we can add multiple servers under nodes. Ansible works by connecting to your nodes and pushing out small programs. vars_files: - config.ymlīelow are the contents of config.yml. And we will call a config.yml file where we have declared our variables. Alternatively, if you already have your public key on remote systems but want to copy a bunch of other keys then just run ansible-playbook without the -e parameter. ansible-playbook -i hosts install/sshkeys.yml -e 'ansiblesshpassPASSWORD'. So this task copies the key to multiple nodes in a loop. Run playbook, pass -e 'ansiblesshpassPASSWORD' for the default root password. Managed nodes can also use SFTP or SCP for communication, and this can be modified in the Ansible configuration file (ansible.cfg). Here you can see, we have used with_items to loop. By default, Ansible uses SSH to communicate with managed nodes. If its there playbook will use the same key file else create a new key pair. Now we’ll see a way to automate that too using a playbook.Ĭheck for id_rsa file and create if not existīelow task can be used to check if the id_rsa file already present in the control machine. I want to do this with Ansible on serverA automatically. ![]() This can be done manually by calling ssh-copy-id userserverB on serverA. Note that ssh-copy-id command uses the public key of the current user running the command which has the private key beside it. There we did generate a SSH key pair and copied the public key to nodes. I want serverA to be able to access serverB by copying the sshpubkey of serverA to serverB. No, You only need his public key stored in /.ssh/idrsa.pub. In the blog Enable SSH Communication we saw how to establish SSH communication between ansible control machine and the nodes. ![]()
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