ansible_collection_users/roles/sshd

Ansible Role SSHD

Ansible role l3d.users.sshd to Manage SSHD Configuration of the system and which Accounts are allowed to login.

WORK IN PROGRESS

There are two variables to define users. The l3d_users__default_users is ment to put to your group_vars to define a default for your system. The l3d_users__local_users could be put in your host_vars to define host-specific user and admin roles.

Variables:

User Management

• The dictionary-variable for your group_vars to set your general users and admins is l3d_users__default_users.
• The dictionary-variable for your host_vars to set your host-specific users and admins is: l3d_users__local_users. The Option of these directory-variables are the following.

option	values	description
name	string	The user you want to create
state	present	Create or delete user
shell	/bin/bash	The Shell of the User
create_home	true	create a user home (needed to store ssh keys)
admin	false	enable it to give the user superpowers
admin_commands	string or list	Commands that are allows to be run as admin, eg. 'ALL' or specific script
admin_nopassword	false	Need no Password for sudo
pubkeys	string or lookup	see examples
exklusive_pubkeys	true	delete all undefined ssh keys
password	password hash	See official FAQ
remove	false	completly remove user if state is absent

There is a third directory-variable called l3d_users__ssh_login: [] which only support name and state for users, that sould be able to login on that system.

Other Variables

name	default value	description
submodules_versioncheck	false	Optionaly enable simple versionscheck of this role
l3d_users__limit_login	true	Only allow SSH login for specified users
l3d_users__sshd_port	22	Port for SSH
l3d_users__sshd_password_authentication	false	Allow login with Password
l3d_users__sshd_permitrootlogin	false	Allow login as root
l3d_users__create_ansible	true	Create Ansible User
l3d_users__ansible_user_state	present	Ansible User State
l3d_users__sshd_manage_server_key_types	true	Manage Server SSH Key types
l3d_users__sshd_server_key_types	['ed25519']	List of supported SSH Key Types
l3d_users__sshd_manage_key_algorithmus	true	Manage SSH Key Algorythmins
l3d_users__sshd_key_algorithmus	['ssh-ed25519-cert-v01@openssh.com', 'ssh-ed25519', 'ecdsa-sha2-nistp521-cert-v01@openssh.com', 'ecdsa-sha2-nistp384-cert-v01@openssh.com', 'ecdsa-sha2-nistp256-cert-v01@openssh.com']	Used SSH Key Algorithms
l3d_users__sshd_manage_kex_algorithmus	true	Manage SSH Kex Algorythms
l3d_users__sshd_kex_algorithmus	['curve25519-sha256@libssh.org', 'diffie-hellman-group-exchange-sha256', 'diffie-hellman-group-exchange-sha1']	Used Kex Algorythms
l3d_users__sshd_manage_ciphers	true	Manage SSH Ciphers
l3d_users__sshd_ciphers	['chacha20-poly1305@openssh.com', 'aes256-gcm@openssh.com', 'aes256-ctr']	Used SSH Ciphers
l3d_users__sshd_manage_macs	true	Manage Used MACs
l3d_users__sshd_macs	['hmac-sha2-512-etm@openssh.com', 'hmac-sha2-256-etm@openssh.com', 'hmac-sha2-512']	Used MACs
l3d_users__sshd_xforwarding	true	Enable X-Forwarding

run simple versionscheck

submodules_versioncheck: false

Example Playbook

- name: Create System with User and Passwords
  hosts: example.com
  roles:
    - {role: l3d.users.sshd, tags: 'sshd'}
  vars:
    l3d_users__local_users:
      - name: 'alice'
        state: 'present'
      - name: 'bob'
        state: 'present'
    l3d_users__ssh_login:
      - name: 'charlie'
        state: 'present'

    l3d_users__limit_login: true
    l3d_users__create_ansible: true
    submodules_versioncheck: true