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kube/ansible/update-ssh-config.yaml

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---
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- name: Collect servers SSH public keys to known_hosts
hosts: localhost
connection: local
vars:
targets: "{{ hostvars[groups['all']] }}"
tasks:
- name: Generate ssh_config
ansible.builtin.copy:
dest: ssh_config
content: |
# Use `ansible-playbook update-ssh-config.yml` to update this file
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# Use `ssh -F ssh_config ...` to connect to target machine or
# Add `Include ~/path/to/this/kube/ssh_config` in your ~/.ssh/config
{% for host in groups['all'] | sort %}
Host {{ [host, hostvars[host].get('ansible_host', host)] | unique | join(' ') }}
User root
Hostname {{ hostvars[host].get('ansible_host', host) }}
Port {{ hostvars[host].get('ansible_port', 22) }}
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GlobalKnownHostsFile known_hosts
UserKnownHostsFile /dev/null
ControlMaster auto
ControlPersist 8h
{% endfor %}
- name: Generate known_hosts
ansible.builtin.copy:
dest: known_hosts
content: |
# Use `ansible-playbook update-ssh-config.yml` to update this file
{% for host in groups['all'] | sort %}
{{ lookup('ansible.builtin.pipe', 'ssh-keyscan -p %d -t ecdsa %s' % (
hostvars[host].get('ansible_port', 22),
hostvars[host].get('ansible_host', host))) }} # {{ host }}
{% endfor %}
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- name: Pull authorized keys from Gitea
hosts: localhost
connection: local
vars:
targets: "{{ hostvars[groups['all']] }}"
tasks:
- name: Download https://git.k-space.ee/user.keys
loop:
- arti
- eaas
- lauri
- rasmus
ansible.builtin.get_url:
url: https://git.k-space.ee/{{ item }}.keys
dest: "./{{ item }}.keys"
- name: Push authorized keys to targets
hosts:
- misc
- kubernetes
- doors
tasks:
- name: Generate /root/.ssh/authorized_keys
ansible.builtin.copy:
dest: "/root/.ssh/authorized_keys"
owner: root
group: root
mode: '0644'
content: |
# Use `ansible-playbook update-ssh-config.yml` from https://git.k-space.ee/k-space/kube/ to update this file
{% for user in admins + extra_admins | unique | sort %}
{% for line in lookup("ansible.builtin.file", user + ".keys").split("\n") %}
{% if line.startswith("sk-") %}
{{ line }} # {{ user }}
{% endif %}
{% endfor %}
{% endfor %}