- Ansible Playbook Generate Ssh Key Github
- Ansible Playbook Generate Ssh Key Generator
- Copy Ssh Key Ansible
- Ansible Ssh Keygen
- Generate Ssh Key Putty
Purpose
Aug 02, 2018 The procedure to run playbook is to provide IP of hosts machines on which we want to run our tasks in ansible hosts file which is located at /etc/ansible/hosts and we are also required to generate ssh key and copy it over to host machine in which we want to run our playbook.
This Ansible Playbook will assist on establishing passwordless SSH logins with the remote hosts you wish to manage. Passwordless logins is a great convenience when connecting to multiple servers, via Ansible or not!
- Can I bypass host key checking in Ansible? Ask Question Asked 3 years ago. Active 2 years, 8 months ago. Is there an appropriate way to set that inside the playbook? I've tried ansiblesshcommonargs and ansiblesshextraargs and it doesn't override what I've got in the ansible.cfg. I've got an ansible.cfg that I use for everything else.
- The ansible configuration tool will need SSH access to each managed node. By its nature, this user will need to have root privileges, and in our case, that will be achieved via sudo. The ansible user will login via ssh-key, and the pass phrase for this user will need to be protected and trusted to a few individuals.
Download the tool
Clone the repository to your ansible-enabled host:
Alternatively, you can download the ansible_setup_passwordless_ssh.yml and hosts from this repository.
Prerequisites
Ansible Playbook Generate Ssh Key Github
Make sure your Ansible host is equipped with the utilities, and that they are available to the PATH of the user you will be running the playbook as.
- ssh-keygen
- ssh-copy-id
- sshpass
If you dont have them, before continuing you will have to install them using the recommended ways for your Linux distribution.
Preparations before you run
Edit the hosts file and define your environment's information. Fill in using the below matrix:
| Name | Description |
|---|---|
| local_host -> ansible_user | user of your localhost |
| local_host -> ansible_password | the password of your localhost's account |
| local_host -> ansible_port | if your local_host has the SSH daemon running not on the default port (22) |
| local_host -> ansible_host | if you want to define the IP of your local_host |
| ssh_key_filename | the filename of the new SSH key to be generated and stored under your .ssh folder of your localhost. |
| remote_machine_username | the username of the remote machines. If you are applying the procedure to multiple hosts. |
| remote_machine_password | the password of the 'remote_machine_username' remote machines. |
| [ansible_setup_passwordless_setup_group] | fill in the list of hosts that you want to establish the passwordless login with. the ansible_user is used only when executing the ansible_setup_passwordless_ssh_rollback playbook and it should match the remote_machine_username. The ansible_host can be ommitted if local_host can resolve the hostname you defined in first column. the ansible_port variable should be present even if it has the default value of 22, else you will have to modify the relevant task in the playbook. |
If you are planning to run the script towards multiple hosts, make sure the username/password you defined is the same to all of them!
Example
How to run it
run:
Last task in the playbook is to connect to each of those hosts and run some commands ('hostname' and 'id'), check the output to verify the success of the tool!
How to avoid the confirmation question.
by design, the 2 playbooks ask for the user's confirmation before proceeding to the tasks. This is a common safety practice, giving the user one last chance to think if he is ready to proceed with this execution.Nevertheless, if this is an unwanted behavior that you want to bypass, you can:
- skip this pre_task, by appending in the command the
-e confirmation=YESargument. For example:
Ansible Playbook Generate Ssh Key Generator
- use the playbooks that are stored in the
non_interactivefolder. They are just missing this 'safety' check.
Copy Ssh Key Ansible
What happens in the background to your machines when you run the playbook
By running this playbook, these things happen to your hosts:
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Localhost:
- An SSH key is generated and placed under .ssh folder. Its file name is configurable, default is ansible_rsa.
- This SSH key is added to the ~/.ssh/config file for SSH client to utilize it when connecting to remote hosts.
Remote hosts:
- The generated SSH key is propagated to the list of remote hosts you configured in hosts inventory file, and added to their ~/.ssh/authorized_keys file. This is done using the
ssh-copy-idlinux utility that is meant for this job.sshpasslinux utility is used to assist running the script without the need to prompt for user password.
Ansible Ssh Keygen
How to rollback
Generate Ssh Key Putty
run: