Puppet Class: ssh::server

Defined in:
modules/ssh/manifests/server.pp

Overview

Parameters:

  • listen_port (Stdlib::Port) (defaults to: 22) —

    the port to listen on

  • listen_addresses (Array[Stdlib::IP::Address]) (defaults to: []) —

    an array of addresses to listen on

  • permit_root (Ssh::Config::PermitRootLogin) (defaults to: true) —

    if true allow root logins

  • authorized_keys_file (Array[Stdlib::Unixpath]) (defaults to: ['/etc/ssh/userkeys/%u', '/etc/ssh/userkeys/%u.d/cumin']) —

    space seperated list of authorized keys files

  • authorized_keys_command (Stdlib::Unixpath) (defaults to: '/usr/sbin/ssh-key-ldap-lookup') —

    command to run for authorized keys

  • disable_nist_kex (Boolean) (defaults to: true) —

    Allow uses to temporarily opt out of nist kex disabling

  • explicit_macs (Boolean) (defaults to: true) —

    Allow users to opt out of more secure MACs

  • enable_hba (Boolean) (defaults to: false) —

    enable host based authentication

  • enable_kerberos (Boolean) (defaults to: false) —

    enable kerberos

  • disable_agent_forwarding (Boolean) (defaults to: true) —

    disable agent forwarding

  • challenge_response_auth (Boolean) (defaults to: true) —

    Disable all password auth

  • max_sessions (Optional[Integer]) (defaults to: undef) —

    allow users to override the maximum number ops sessions

  • max_startups (Optional[String[1]]) (defaults to: undef) —

    allow users to override the maximum number ops startups

  • gateway_ports (Boolean) (defaults to: false) —

    if true set sshd_config GatewayPorts to yes



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# File 'modules/ssh/manifests/server.pp', line 16

class ssh::server (
    Stdlib::Port                 $listen_port              = 22,
    Array[Stdlib::IP::Address]   $listen_addresses         = [],
    Ssh::Config::PermitRootLogin $permit_root              = true,
    Array[Stdlib::Unixpath]      $authorized_keys_file     = ['/etc/ssh/userkeys/%u', '/etc/ssh/userkeys/%u.d/cumin'],
    Stdlib::Unixpath             $authorized_keys_command  = '/usr/sbin/ssh-key-ldap-lookup',
    Boolean                      $disable_nist_kex         = true,
    Boolean                      $explicit_macs            = true,
    Boolean                      $enable_hba               = false,
    Boolean                      $enable_kerberos          = false,
    Boolean                      $disable_agent_forwarding = true,
    Boolean                      $challenge_response_auth  = true,
    Optional[Integer]            $max_sessions             = undef,
    Optional[String[1]]          $max_startups             = undef,
    Boolean                      $gateway_ports            = false
) {
    $_permit_root = $permit_root ? {
        String  => $permit_root,
        false   => 'no',
        default => 'yes',
    }
    package { 'openssh-server':
        ensure => present,
    }

    service { 'ssh':
        ensure    => running,
        subscribe => File['/etc/ssh/sshd_config'],
    }

    profile::auto_restarts::service { 'ssh': }

    file { '/etc/ssh/userkeys':
        ensure  => directory,
        owner   => 'root',
        group   => 'root',
        mode    => '0444',
        recurse => true,
        purge   => true,
    }

    file { '/etc/ssh/sshd_config':
        ensure  => present,
        owner   => 'root',
        group   => 'root',
        mode    => '0444',
        content => template('ssh/sshd_config.erb'),
        require => Package['openssh-server'],
    }

    # we use the legacy facts here specificaly because we override them in
    # modules/base/lib/facter/interface_primary.rb
    # Although the networking.ip fact now points to a sensible fact
    # networking.ip6 still points to IMO the wrong address.
    # related: https://tickets.puppetlabs.com/browse/FACT-2907
    # related: https://tickets.puppetlabs.com/browse/FACT-2843
    $aliases = [
        $facts['networking']['hostname'],
        $facts['ipaddress'],
        $facts['ipaddress6'],
    ].filter |$x| { $x =~ NotUndef }

    @@sshkey { $facts['networking']['fqdn']:
        ensure       => present,
        type         => 'ecdsa-sha2-nistp256',
        key          => $facts['ssh']['ecdsa']['key'],
        host_aliases => $aliases,
    }
}