community.crypto.openssl_publickey module – Generate an OpenSSL public key from its private key

Note

This module is part of the community.crypto collection (version 2.26.5).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install community.crypto. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: community.crypto.openssl_publickey.

Synopsis 

This module allows one to (re)generate public keys from their private keys.
Public keys are generated in PEM or OpenSSH format. Private keys must be OpenSSL PEM keys. OpenSSH private keys are not supported, use the community.crypto.openssh_keypair module to manage these.
The module uses the cryptography Python library.

Requirements 

The below requirements are needed on the host that executes this module.

cryptography >= 1.2.3 (older versions might work as well)
Needs cryptography >= 1.4 if format is OpenSSH

Parameters 

Parameter	Comments
attributes aliases: attr string	The attributes the resulting filesystem object should have. To get supported flags look at the man page for `chattr` on the target system. This string should contain the attributes in the same order as the one displayed by `lsattr`. The `=` operator is assumed as default, otherwise `+` or `-` operators need to be included in the string.
backup boolean	Create a backup file including a timestamp so you can get the original public key back if you overwrote it with a different one by accident. Choices: `false` ← (default) `true`
force boolean	Should the key be regenerated even it it already exists. Choices: `false` ← (default) `true`
format string	The format of the public key. Choices: `"OpenSSH"` `"PEM"` ← (default)
group string	Name of the group that should own the filesystem object, as would be fed to `chown`. When left unspecified, it uses the current group of the current user unless you are root, in which case it can preserve the previous ownership.
mode any	The permissions the resulting filesystem object should have. For those used to `/usr/bin/chmod` remember that modes are actually octal numbers. You must give Ansible enough information to parse them correctly. For consistent results, quote octal numbers (for example, `'644'` or `'1777'`) so Ansible receives a string and can do its own conversion from string into number. Adding a leading zero (for example, `0755`) works sometimes, but can fail in loops and some other circumstances. Giving Ansible a number without following either of these rules will end up with a decimal number which will have unexpected results. As of Ansible 1.8, the mode may be specified as a symbolic mode (for example, `u+rwx` or `u=rw,g=r,o=r`). If `mode` is not specified and the destination filesystem object does not exist, the default `umask` on the system will be used when setting the mode for the newly created filesystem object. If `mode` is not specified and the destination filesystem object does exist, the mode of the existing filesystem object will be used. Specifying `mode` is the best way to ensure filesystem objects are created with the correct permissions. See CVE-2020-1736 for further details.
owner string	Name of the user that should own the filesystem object, as would be fed to `chown`. When left unspecified, it uses the current user unless you are root, in which case it can preserve the previous ownership. Specifying a numeric username will be assumed to be a user ID and not a username. Avoid numeric usernames to avoid this confusion.
path path / required	Name of the file in which the generated TLS/SSL public key will be written.
privatekey_content string added in community.crypto 1.0.0	The content of the TLS/SSL private key from which to generate the public key. Either `privatekey_path` or `privatekey_content` must be specified, but not both. If `state` is `present`, one of them is required.
privatekey_passphrase string	The passphrase for the private key.
privatekey_path path	Path to the TLS/SSL private key from which to generate the public key. Either `privatekey_path` or `privatekey_content` must be specified, but not both. If `state` is `present`, one of them is required.
return_content boolean added in community.crypto 1.0.0	If set to `true`, will return the (current or generated) public key’s content as `publickey`. Choices: `false` ← (default) `true`
select_crypto_backend string	Determines which crypto backend to use. The default choice is `auto`, which tries to use `cryptography` if available. If set to `cryptography`, will try to use the cryptography library. Choices: `"auto"` ← (default) `"cryptography"`
selevel string	The level part of the SELinux filesystem object context. This is the MLS/MCS attribute, sometimes known as the `range`. When set to `_default`, it will use the `level` portion of the policy if available.
serole string	The role part of the SELinux filesystem object context. When set to `_default`, it will use the `role` portion of the policy if available.
setype string	The type part of the SELinux filesystem object context. When set to `_default`, it will use the `type` portion of the policy if available.
seuser string	The user part of the SELinux filesystem object context. By default it uses the `system` policy, where applicable. When set to `_default`, it will use the `user` portion of the policy if available.
state string	Whether the public key should exist or not, taking action if the state is different from what is stated. Choices: `"absent"` `"present"` ← (default)
unsafe_writes boolean	Influence when to use atomic operation to prevent data corruption or inconsistent reads from the target filesystem object. By default this module uses atomic operations to prevent data corruption or inconsistent reads from the target filesystem objects, but sometimes systems are configured or just broken in ways that prevent this. One example is docker mounted filesystem objects, which cannot be updated atomically from inside the container and can only be written in an unsafe manner. This option allows Ansible to fall back to unsafe methods of updating filesystem objects when atomic operations fail (however, it doesn’t force Ansible to perform unsafe writes). IMPORTANT! Unsafe writes are subject to race conditions and can lead to data corruption. Choices: `false` ← (default) `true`

Attributes 

Attribute	Support	Description
check_mode	Support: full	Can run in `check_mode` and return changed status prediction without modifying target.
diff_mode	Support: full	Will return details on what has changed (or possibly needs changing in `check_mode`), when in diff mode.
idempotent	Support: partial The module is not idempotent if `force=true`.	When run twice in a row outside check mode, with the same arguments, the second invocation indicates no change. This assumes that the system controlled/queried by the module has not changed in a relevant way.
safe_file_operations	Support: full	Uses Ansible’s strict file operation functions to ensure proper permissions and avoid data corruption.

Examples 

---
- name: Generate an OpenSSL public key in PEM format
  community.crypto.openssl_publickey:
    path: /etc/ssl/public/ansible.com.pem
    privatekey_path: /etc/ssl/private/ansible.com.pem

- name: Generate an OpenSSL public key in PEM format from an inline key
  community.crypto.openssl_publickey:
    path: /etc/ssl/public/ansible.com.pem
    privatekey_content: "{{ private_key_content }}"

- name: Generate an OpenSSL public key in OpenSSH v2 format
  community.crypto.openssl_publickey:
    path: /etc/ssl/public/ansible.com.pem
    privatekey_path: /etc/ssl/private/ansible.com.pem
    format: OpenSSH

- name: Generate an OpenSSL public key with a passphrase protected private key
  community.crypto.openssl_publickey:
    path: /etc/ssl/public/ansible.com.pem
    privatekey_path: /etc/ssl/private/ansible.com.pem
    privatekey_passphrase: ansible

- name: Force regenerate an OpenSSL public key if it already exists
  community.crypto.openssl_publickey:
    path: /etc/ssl/public/ansible.com.pem
    privatekey_path: /etc/ssl/private/ansible.com.pem
    force: true

- name: Remove an OpenSSL public key
  community.crypto.openssl_publickey:
    path: /etc/ssl/public/ansible.com.pem
    state: absent

Return Values 

Common return values are documented here, the following are the fields unique to this module:

Key	Description
backup_file string	Name of backup file created. Returned: changed and if `backup` is `true` Sample: `"/path/to/publickey.pem.2019-03-09@11:22~"`
filename string	Path to the generated TLS/SSL public key file. Returned: changed or success Sample: `"/etc/ssl/public/ansible.com.pem"`
fingerprint dictionary	The fingerprint of the public key. Fingerprint will be generated for each hashlib.algorithms available. Returned: changed or success Sample: {"md5": "84:75:71:72:8d:04:b5:6c:4d:37:6d:66:83:f5:4c:29", "sha1": "51:cc:7c:68:5d:eb:41:43:88:7e:1a:ae:c7:f8:24:72:ee:71:f6:10", "sha224": "b1:19:a6:6c:14:ac:33:1d:ed:18:50:d3:06:5c:b2:32:91:f1:f1:52:8c:cb:d5:75:e9:f5:9b:46", "sha256": "41:ab:c7:cb:d5:5f:30:60:46:99:ac:d4:00:70:cf:a1:76:4f:24:5d:10:24:57:5d:51:6e:09:97:df:2f:de:c7", "sha384": "85:39:50:4e:de:d9:19:33:40:70:ae:10:ab:59:24:19:51:c3:a2:e4:0b:1c:b1:6e:dd:b3:0c:d9:9e:6a:46:af:da:18:f8:ef:ae:2e:c0:9a:75:2c:9b:b3:0f:3a:5f:3d", "sha512": "fd:ed:5e:39:48:5f:9f:fe:7f:25:06:3f:79:08:cd:ee:a5:e7:b3:3d:13:82:87:1f:84:e1:f5:c7:28:77:53:94:86:56:38:69:f0:d9:35:22:01:1e:a6:60:...:0f:9b"}
format string	The format of the public key (PEM, OpenSSH, …). Returned: changed or success Sample: `"PEM"`
privatekey string	Path to the TLS/SSL private key the public key was generated from. Will be `none` if the private key has been provided in `privatekey_content`. Returned: changed or success Sample: `"/etc/ssl/private/ansible.com.pem"`
publickey string added in community.crypto 1.0.0	The (current or generated) public key’s content. Returned: if `state` is `present` and `return_content` is `true`

Authors

Yanis Guenane (@Spredzy)
Felix Fontein (@felixfontein)

community.crypto.openssl_publickey module – Generate an OpenSSL public key from its private key

Synopsis 

Requirements 

Parameters 

Attributes 

See Also 

Examples 

Return Values 

Authors

Collection links

community.crypto.openssl_publickey module – Generate an OpenSSL public key from its private key

Synopsis

Requirements

Parameters

Attributes

See Also

Examples

Return Values

Authors

Collection links

Synopsis 

Requirements 

Parameters 

Attributes 

See Also 

Examples 

Return Values 