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# configures sshd, mosh, authorized keys and known hosts
class site_sshd {
$ssh = hiera_hash('ssh')
$ssh_config = $ssh['config']
$hosts = hiera('hosts', '')
##
## SETUP AUTHORIZED KEYS
##
$authorized_keys = $ssh['authorized_keys']
class { 'site_sshd::deploy_authorized_keys':
keys => $authorized_keys
}
##
## SETUP KNOWN HOSTS and SSH_CONFIG
##
file {
'/etc/ssh/ssh_known_hosts':
owner => root,
group => root,
mode => '0644',
content => template('site_sshd/ssh_known_hosts.erb');
'/etc/ssh/ssh_config':
owner => root,
group => root,
mode => '0644',
content => template('site_sshd/ssh_config.erb');
}
##
## OPTIONAL MOSH SUPPORT
##
$mosh = $ssh['mosh']
if $mosh['enabled'] {
class { 'site_sshd::mosh':
ensure => present,
ports => $mosh['ports']
}
}
else {
class { 'site_sshd::mosh':
ensure => absent
}
}
# we cannot use the 'hardened' parameter because leap_cli uses an
# old net-ssh gem that is incompatible with the included
# "KexAlgorithms curve25519-sha256@libssh.org",
# see https://leap.se/code/issues/7591
# therefore we don't use it here, but include all other options
# that would be applied by the 'hardened' parameter
# not all options are available on wheezy
if ( $::lsbdistcodename == 'wheezy' ) {
$tail_additional_options = 'Ciphers aes256-ctr
MACs hmac-sha2-512,hmac-sha2-256,hmac-ripemd160'
} else {
$tail_additional_options = 'Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
MACs hmac-sha2-512,hmac-sha2-256,hmac-ripemd160'
}
##
## SSHD SERVER CONFIGURATION
##
class { '::sshd':
manage_nagios => false,
ports => [ $ssh['port'] ],
use_pam => 'yes',
print_motd => 'no',
tcp_forwarding => $ssh_config['AllowTcpForwarding'],
manage_client => false,
use_storedconfigs => false,
tail_additional_options => $tail_additional_options,
hostkey_type => [ 'rsa', 'dsa', 'ecdsa' ]
}
}
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