Aug 02, 2016 Generate SSH keys with Ansible. Devops ansible. If you need to generate SSH keys for your root user (or any other user) with Ansible, the following does the trick. How about using user-module and generatesshkey? Over 1 year ago Sponsored. #nativecompany# #nativedesc# #nativecta# Filed Under Tools. Creating User accounts. Now we have a list of usernames in a variable, we can use that to create user accounts. In it’s simplest form the Ansible User Module just needs to be given a name, and we can use the withitems to apply our list to the module in a loop. According to Ansible's docs on Lookups. Lookups occur on the local computer, not on the remote computer. So Ansible is attempting to find your users' keys on 'Ansible Server'. Personally I wouldn't use the generatesshkey parameter in your user task. Each user will have a different key for each server.
![]() Ansible Generate_ssh_key Module 3
Syntax a generative introduction 3rd edition answer key pdf online. Contents
We are going to use Ansible to create user accounts and add users to groups, setup them up with access via ssh using by adding their public keys to authorized_key files. For the minimum version of this task we are just going to do four things:
The guide has been tested using a new Digital Ocean Ubuntu 17.04 Droplet on the cheapest plan, and everything runs as root when connected to the server via ssh or console (Such as with Digital Ocean’s Console option on the control panel)
For this guide we are going to setup the playbook to run a server directly, using the “local” connection method so when run as root we don’t need to worry about additional authentication or setting up host inventories.
Install Ansible
To get Ansible installed you can just run
apt-get install ansible which will install version 2.2. Or check out the Ansible documentation if you want to get the latest version.
Create and run your first playbook
To check everything is working as it should, it’s best to run a barebones playbook with just a
ping task which will check your setup using the simplest version of a playbook possible.
Create a file called
users.yml with the following snippet, and run it with ansible-playbook users.yml
Don’t worry about the
[WARNING]: provided hosts list is empty, only localhost is available message, we are only working with localhost so this is to be expected.
users.ymlWatch it runAdding a list of users to the playbook vars
At the top of the playbook, we add a simple list of usernames.
varsFull users.yml
Now we have a list of usernames in a variable, we can use that to create user accounts.
In it’s simplest form the Ansible User Module just needs to be given a name , and we can use the with_items to apply our list to the module in a loop.
Exit_json Ansible
When using
with_items the value becomes available as item , in it’s simplest form you '{{ item }}' will use the item value for a module property.
So our users are more useful, we are also going to add the
groups admin and www-data to each user.
user taskFull fileWatch it run
The newly created user accounts on a server don’t have passwords set, so to be able to log in we need to add each users ssh key to their authorize_keys file. We can do this using Ansible’s Authorized Key Module
authorized_key that takes user and a file in key .
key takes a file, which can be loaded using the lookup('file','path to file') https://energysn.weebly.com/blog/world-of-warcraft-mists-of-pandaria-key-generator. function. In this code, we put the public SSH keys in files/username.key.pub . By having the file names match to the username we can use the same users var for the loop without needing to add additional parameters at this stage.
authorized_key taskDir contentsFull users.ymlWatch it run
Now your users can login with their ssh keys, but won’t be able to do any server admin with
sudo because without passwords set, they can’t enter their password when prompted when they use the command as per the default behaviour. To get around this limitation, we can update /etc/sudoers with Ansible’s lineinfile Module.
This simple implementation of the
lineinfile looks for a line starting with – represented in a regexp as ^ – with the string %admin and then ensures it matches the line %admin ALL=(ALL) NOPASSWD: ALL
Once in place, any users in the admin group will no longer be prompted for a password when using
sudo Ansible Add Ssh Keylineinfile taskFull users.ymlNext Steps: Creating a Viable Version
The next part of this guide steps up to the Viable version, by defining expanding the vars to have multiple properties per item using complex vars to add groups per user, using user state for a method to disable users accounts. The improved playbook also introduces handlers and notify to restart services when the configuration changes. Improve the user management playbook in the next guide.
Common return values are documented here, the following are the fields unique to this module:
Ansible Generate_ssh_key Module 4
Red Hat Support¶
More information about Red Hat’s support of this module is available from this Red Hat Knowledge Base article.
Authors¶
Ansible Push Ssh Public Key
Hint
Ansible Add Public Ssh Key
If you notice any issues in this documentation, you can edit this document to improve it. https://energysn.weebly.com/blog/easeus-data-recovery-wizard-118-license-key-generator.
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