Как раскатать SSH-ключи на 130 серверов через Ansible?

To distribute SSH keys across 130 servers using Ansible, you can use the authorized_key module, which adds a public key to the ~/.ssh/authorized_keys file of the specified user on the remote server.

Example of a simple playbook:

- hosts: all
  become: yes
  tasks:
    - name: Add public SSH key
      authorized_key:
        user: your_user
        state: present
        key: "{{ lookup('file', '/path/to/public_key.pub') }}"

Where:

• hosts: all — all 130 servers should be in the inventory.
• your_user — the user for whom the key is being added.
• The public key is stored locally and inserted via lookup('file', ...).

Run:

ansible-playbook -i inventory_file deploy_ssh_key.yml

This approach is secure, scalable, and does not require manual copying of keys to each server.