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community.crypto.openssl_privatekey – Generate OpenSSL private keys

Note

This plugin is part of the community.crypto collection (version 1.9.6).

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.

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

Synopsis
Requirements
Parameters
See Also
Examples
Return Values

Synopsis

Keys are generated in PEM format.
One can generate RSA, DSA, ECC or EdDSA private keys.
Please note that the module regenerates private keys if they don’t match the module’s options. In particular, if you provide another passphrase (or specify none), change the keysize, etc., the private key will be regenerated. If you are concerned that this could overwrite your private key, consider using the backup option.
The default mode for the private key file will be 0600 if mode is not explicitly set.
The module can use the cryptography Python library, or the pyOpenSSL Python library. By default, it tries to detect which one is available. This can be overridden with the select_crypto_backend option. Please note that the PyOpenSSL backend was deprecated in Ansible 2.9 and will be removed in community.crypto 2.0.0.
This module allows one to (re)generate OpenSSL private keys.

Requirements

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

Either cryptography >= 1.2.3 (older versions might work as well)
Or pyOpenSSL

Parameters

Parameter	Choices/Defaults	Comments
attributes string added in 2.3 of ansible.builtin		The attributes the resulting file or directory 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. aliases: attr
backup boolean	Choices: no ← yes	Create a backup file including a timestamp so you can get the original private key back if you overwrote it with a new one by accident.
cipher string		The cipher to encrypt the private key. (Valid values can be found by running `openssl list -cipher-algorithms` or `openssl list-cipher-algorithms`, depending on your OpenSSL version.) When using the `cryptography` backend, use `auto`.
curve string	Choices: secp224r1 secp256k1 secp256r1 secp384r1 secp521r1 secp192r1 brainpoolP256r1 brainpoolP384r1 brainpoolP512r1 sect163k1 sect163r2 sect233k1 sect233r1 sect283k1 sect283r1 sect409k1 sect409r1 sect571k1 sect571r1	Note that not all curves are supported by all versions of `cryptography`. For maximal interoperability, `secp384r1` or `secp256r1` should be used. We use the curve names as defined in the IANA registry for TLS. Please note that all curves except `secp224r1`, `secp256k1`, `secp256r1`, `secp384r1` and `secp521r1` are discouraged for new private keys.
force boolean	Choices: no ← yes	Should the key be regenerated even if it already exists.
format string added in 1.0.0 of community.crypto	Choices: pkcs1 pkcs8 raw auto auto_ignore ←	Determines which format the private key is written in. By default, PKCS1 (traditional OpenSSL format) is used for all keys which support it. Please note that not every key can be exported in any format. The value `auto` selects a fromat based on the key format. The value `auto_ignore` does the same, but for existing private key files, it will not force a regenerate when its format is not the automatically selected one for generation. Note that if the format for an existing private key mismatches, the key is regenerated by default. To change this behavior, use the format_mismatch option. The format option is only supported by the `cryptography` backend. The `pyopenssl` backend will fail if a value different from `auto_ignore` is used.
format_mismatch string added in 1.0.0 of community.crypto	Choices: regenerate ← convert	Determines behavior of the module if the format of a private key does not match the expected format, but all other parameters are as expected. If set to `regenerate` (default), generates a new private key. If set to `convert`, the key will be converted to the new format instead. Only supported by the `cryptography` backend.
group string		Name of the group that should own the file/directory, as would be fed to chown.
mode raw		The permissions the resulting file or directory should have. For those used to /usr/bin/chmod remember that modes are actually octal numbers. You must either add a leading zero so that Ansible's YAML parser knows it is an octal number (like `0644` or `01777`) or quote it (like `'644'` or `'1777'`) so Ansible receives a string and can do its own conversion from string into number. Giving Ansible a number without following one 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 file does not exist, the default `umask` on the system will be used when setting the mode for the newly created file. If `mode` is not specified and the destination file does exist, the mode of the existing file will be used. Specifying `mode` is the best way to ensure files are created with the correct permissions. See CVE-2020-1736 for further details.
owner string		Name of the user that should own the file/directory, as would be fed to chown.
passphrase string		The passphrase for the private key.
path path / required		Name of the file in which the generated TLS/SSL private key will be written. It will have `0600` mode if mode is not explicitly set.
regenerate string added in 1.0.0 of community.crypto	Choices: never fail partial_idempotence full_idempotence ← always	Allows to configure in which situations the module is allowed to regenerate private keys. The module will always generate a new key if the destination file does not exist. By default, the key will be regenerated when it doesn't match the module's options, except when the key cannot be read or the passphrase does not match. Please note that this changed for Ansible 2.10. For Ansible 2.9, the behavior was as if `full_idempotence` is specified. If set to `never`, the module will fail if the key cannot be read or the passphrase isn't matching, and will never regenerate an existing key. If set to `fail`, the module will fail if the key does not correspond to the module's options. If set to `partial_idempotence`, the key will be regenerated if it does not conform to the module's options. The key is not regenerated if it cannot be read (broken file), the key is protected by an unknown passphrase, or when they key is not protected by a passphrase, but a passphrase is specified. If set to `full_idempotence`, the key will be regenerated if it does not conform to the module's options. This is also the case if the key cannot be read (broken file), the key is protected by an unknown passphrase, or when they key is not protected by a passphrase, but a passphrase is specified. Make sure you have a backup when using this option! If set to `always`, the module will always regenerate the key. This is equivalent to setting force to `yes`. Note that if format_mismatch is set to `convert` and everything matches except the format, the key will always be converted, except if regenerate is set to `always`.
return_content boolean added in 1.0.0 of community.crypto	Choices: no ← yes	If set to `yes`, will return the (current or generated) private key's content as privatekey. Note that especially if the private key is not encrypted, you have to make sure that the returned value is treated appropriately and not accidentally written to logs etc.! Use with care! Use Ansible's no_log task option to avoid the output being shown. See also https://docs.ansible.com/ansible/latest/reference_appendices/faq.html#how-do-i-keep-secret-data-in-my-playbook.
select_crypto_backend string	Choices: auto ← cryptography pyopenssl	Determines which crypto backend to use. The default choice is `auto`, which tries to use `cryptography` if available, and falls back to `pyopenssl`. If set to `pyopenssl`, will try to use the pyOpenSSL library. If set to `cryptography`, will try to use the cryptography library. Please note that the `pyopenssl` backend has been deprecated in Ansible 2.9, and will be removed in community.crypto 2.0.0. From that point on, only the `cryptography` backend will be available.
selevel string		The level part of the SELinux file 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 file context. When set to `_default`, it will use the `role` portion of the policy if available.
setype string		The type part of the SELinux file context. When set to `_default`, it will use the `type` portion of the policy if available.
seuser string		The user part of the SELinux file 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.
size integer	Default: 4096	Size (in bits) of the TLS/SSL key to generate.
state string	Choices: absent present ←	Whether the private key should exist or not, taking action if the state is different from what is stated.
type string	Choices: DSA ECC Ed25519 Ed448 RSA ← X25519 X448	The algorithm used to generate the TLS/SSL private key. Note that `ECC`, `X25519`, `X448`, `Ed25519` and `Ed448` require the `cryptography` backend. `X25519` needs cryptography 2.5 or newer, while `X448`, `Ed25519` and `Ed448` require cryptography 2.6 or newer. For `ECC`, the minimal cryptography version required depends on the curve option.
unsafe_writes boolean added in 2.2 of ansible.builtin	Choices: no ← yes	Influence when to use atomic operation to prevent data corruption or inconsistent reads from the target file. By default this module uses atomic operations to prevent data corruption or inconsistent reads from the target files, but sometimes systems are configured or just broken in ways that prevent this. One example is docker mounted files, 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 files 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.

Examples

- name: Generate an OpenSSL private key with the default values (4096 bits, RSA)
  community.crypto.openssl_privatekey:
    path: /etc/ssl/private/ansible.com.pem

- name: Generate an OpenSSL private key with the default values (4096 bits, RSA) and a passphrase
  community.crypto.openssl_privatekey:
    path: /etc/ssl/private/ansible.com.pem
    passphrase: ansible
    cipher: aes256

- name: Generate an OpenSSL private key with a different size (2048 bits)
  community.crypto.openssl_privatekey:
    path: /etc/ssl/private/ansible.com.pem
    size: 2048

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

- name: Generate an OpenSSL private key with a different algorithm (DSA)
  community.crypto.openssl_privatekey:
    path: /etc/ssl/private/ansible.com.pem
    type: DSA

Return Values

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

Key	Returned	Description
backup_file string	changed and if backup is `yes`	Name of backup file created. Sample: /path/to/privatekey.pem.2019-03-09@11:22~
curve string	changed or success, and type is `ECC`	Elliptic curve used to generate the TLS/SSL private key. Sample: secp256r1
filename string	changed or success	Path to the generated TLS/SSL private key file. Sample: /etc/ssl/private/ansible.com.pem
fingerprint dictionary	changed or success	The fingerprint of the public key. Fingerprint will be generated for each `hashlib.algorithms` available. The PyOpenSSL backend requires PyOpenSSL >= 16.0 for meaningful output. 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'}
privatekey string added in 1.0.0 of community.crypto	if state is `present` and return_content is `yes`	The (current or generated) private key's content. Will be Base64-encoded if the key is in raw format.
size integer	changed or success	Size (in bits) of the TLS/SSL private key. Sample: 4096
type string	changed or success	Algorithm used to generate the TLS/SSL private key. Sample: RSA

Authors

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

© 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/latest/collections/community/crypto/openssl_privatekey_module.html