Ansible role: openssh

Install and configure an OpenSSH server.

Highly inspired by:

https://github.com/robertdebock/ansible-role-openssh

Requirements

None

Role Variables

These variables are defined in defaults/main.yml:

openssh_use_dotconfig_when_feasible: false

openssh_configuration: {}

openssh_configuration_match_blocks: {}

Since OpenSSH v8.2 it is possible to use Include statement to load configuration from an explicit directory (by default from /etc/ssh/sshd_config.d). The openssh_add_dotconfig_when_feasible enforces this pattern, when enabled.

Dependencies

None

Example Playbook

- name: Converge
  hosts: all
  roles:
    - role: ansible-role-openssh
      vars:
        openssh_configuration:
          Include: /etc/ssh/sshd_config.d/*.conf
          ## Configuration
          Port: 22
          ListenAddress:
            - "0.0.0.0"
            - "::"
          AcceptEnv:
            - LANG
            - LANGUAGE
            - LC_*
          PrintMotd: no
          Subsystem: sftp  /usr/lib/openssh/sftp-server
          UsePAM: yes
          ## Ciphers
          Ciphers: aes128-ctr,aes192-ctr,aes256-ctr
          HostKeyAlgorithms: ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss
          KexAlgorithms: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha256
          MACs: hmac-sha2-256,hmac-sha2-512,hmac-sha1
          ## Security
          # Protocol: 2
          PasswordAuthentication: no
          PermitRootLogin: no
          PermitEmptyPasswords: no
          AllowTcpForwarding: no
          AllowStreamLocalForwarding: no
          GatewayPorts: no
          PermitTunnel: no
          ChallengeResponseAuthentication: no
          ClientAliveInterval: 180
          MaxAuthTries: 5
          X11Forwarding: no
        openssh_configuration_match_blocks:
          Address 192.168.1.*:
            PasswordAuthentication: "yes"
            PermitRootLogin: "yes"

License

MIT

Author Information

Tibor Csóka