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Reference

Table of Contents

Resource types

  • ssh_authorized_key: Manages SSH authorized keys. Currently only type 2 keys are supported.
  • sshkey: Installs and manages ssh host keys.

Resource types

ssh_authorized_key

In their native habitat, SSH keys usually appear as a single long line, in the format <TYPE> <KEY> <NAME/COMMENT>. This resource type requires you to split that line into several attributes.

To ensure that only the currently approved keys are present, you can purge unmanaged SSH keys on a per-user basis.

This will remove any keys in ~/.ssh/authorized_keys that aren't being managed with ssh_authorized_key resources. See the documentation of the user type for more details.

Autorequires: If Puppet is managing the user account in which this SSH key should be installed, the ssh_authorized_key resource will autorequire that user.

Examples

Thus, a key that appears in your ~/.ssh/id_rsa.pub file like this...
ssh-rsa AAAAB3Nza[...]qXfdaQ== nick@magpie.example.com
...would translate to the following resource:
ssh_authorized_key { 'nick@magpie.example.com':
  ensure => present,
  user   => 'nick',
  type   => 'ssh-rsa',
  key    => 'AAAAB3Nza[...]qXfdaQ==',
}
Do this with the user resource type's purge_ssh_keys attribute:
user { 'nick':
  ensure         => present,
  purge_ssh_keys => true,
}

Properties

The following properties are available in the ssh_authorized_key type.

ensure

Valid values: present, absent

The basic property that the resource should be in.

Default value: present

key

The public key itself; generally a long string of hex characters. The key attribute may not contain whitespace.

Make sure to omit the following in this attribute (and specify them in other attributes):

  • Key headers, such as 'ssh-rsa' --- put these in the type attribute.
  • Key identifiers / comments, such as 'joe@joescomputer.local' --- put these in the name attribute/resource title.
options

Key options; see sshd(8) for possible values. Multiple values should be specified as an array. For example, you could use the following to install a SSH CA that allows someone with the 'superuser' principal to log in as root

 ssh_authorized_key { 'Company SSH CA':
   ensure  => present,
   user    => 'root',
   type    => 'ssh-ed25519',
   key     => 'AAAAC3NzaC[...]CeA5kG',
   options => [ 'cert-authority', 'principals=\"superuser\"' ],
 }
target

The absolute filename in which to store the SSH key. This property is optional and should be used only in cases where keys are stored in a non-standard location, for instance when not in ~user/.ssh/authorized_keys. The parent directory must be present if the target is in a privileged path.

Default value: absent

type

Valid values: ssh-dss, ssh-rsa, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-ed25519, sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com, ssh-rsa-cert-v01@openssh.com, ssh-ed25519-cert-v01@openssh.com, ssh-dss-cert-v01@openssh.com, ecdsa-sha2-nistp256-cert-v01@openssh.com, ecdsa-sha2-nistp384-cert-v01@openssh.com, ecdsa-sha2-nistp521-cert-v01@openssh.com, dsa, ed25519, rsa, ecdsa-sk, ed25519-sk

Aliases: "dsa"=>"ssh-dss", "ed25519"=>"ssh-ed25519", "rsa"=>"ssh-rsa", "ecdsa-sk"=>"sk-ecdsa-sha2-nistp256@openssh.com", "ed25519-sk"=>"sk-ssh-ed25519@openssh.com"

The encryption type used.

user

The user account in which the SSH key should be installed. The resource will autorequire this user if it is being managed as a user resource.

Parameters

The following parameters are available in the ssh_authorized_key type.

drop_privileges

Valid values: true, false, yes, no

Whether to drop privileges when writing the key file. This is useful for creating files in paths not writable by the target user. Note the possible security implications of managing file ownership and permissions as a privileged user.

Default value: true

name

namevar

The SSH key comment. This can be anything, and doesn't need to match the original comment from the .pub file.

Due to internal limitations, this must be unique across all user accounts; if you want to specify one key for multiple users, you must use a different comment for each instance.

provider

The specific backend to use for this ssh_authorized_key resource. You will seldom need to specify this --- Puppet will usually discover the appropriate provider for your platform.

sshkey

By default, this type will install keys into /etc/ssh/ssh_known_hosts. To manage ssh keys in a different known_hosts file, such as a user's personal known_hosts, pass its path to the target parameter. See the ssh_authorized_key type to manage authorized keys.

Properties

The following properties are available in the sshkey type.

ensure

Valid values: present, absent

The basic property that the resource should be in.

Default value: present

host_aliases

Any aliases the host might have. Multiple values must be specified as an array.

key

The key itself; generally a long string of unencoded characters. The key attribute may not contain any whitespace, including embedded newlines.

Make sure to omit the following in this attribute (and specify them in other attributes):

  • Key headers, such as 'ssh-rsa' --- put these in the type attribute.
target

The file in which to store the ssh key. Only used by the parsed provider.

Parameters

The following parameters are available in the sshkey type.

name

namevar

The host name that the key is associated with.

provider

The specific backend to use for this sshkey resource. You will seldom need to specify this --- Puppet will usually discover the appropriate provider for your platform.

type

Valid values: ssh-dss, ssh-ed25519, ssh-rsa, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com, dsa, ed25519, rsa, ecdsa-sk, ed25519-sk

namevar

Aliases: "dsa"=>"ssh-dss", "ed25519"=>"ssh-ed25519", "rsa"=>"ssh-rsa", "ecdsa-sk"=>"sk-ecdsa-sha2-nistp256@openssh.com", "ed25519-sk"=>"sk-ssh-ed25519@openssh.com"

The encryption type used. Probably ssh-dss or ssh-rsa.