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README-cert.md

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Cert module

Description

The cert module makes it possible to request, revoke and retrieve SSL certificates for hosts, services and users.

Features

  • Certificate request
  • Certificate hold/release
  • Certificate revocation
  • Certificate retrieval

Supported FreeIPA Versions

FreeIPA versions 4.4.0 and up are supported by the ipacert module.

Requirements

Controller

  • Ansible version: 2.13+
  • Some tool to generate a certificate signing request (CSR) might be needed, like openssl.

Node

  • Supported FreeIPA version (see above)

Usage

Example inventory file

[ipaserver]
ipaserver.test.local

Example playbook to request a new certificate for a service:

---
- name: Certificate request
  hosts: ipaserver

  tasks:
  - name: Request a certificate for a web server
    ipacert:
      ipaadmin_password: SomeADMINpassword
      state: requested
      csr: |
        -----BEGIN CERTIFICATE REQUEST-----
        MIGYMEwCAQAwGTEXMBUGA1UEAwwOZnJlZWlwYSBydWxlcyEwKjAFBgMrZXADIQBs
        HlqIr4b/XNK+K8QLJKIzfvuNK0buBhLz3LAzY7QDEqAAMAUGAytlcANBAF4oSCbA
        5aIPukCidnZJdr491G4LBE+URecYXsPknwYb+V+ONnf5ycZHyaFv+jkUBFGFeDgU
        SYaXm/gF8cDYjQI=
        -----END CERTIFICATE REQUEST-----
      principal: HTTP/www.example.com
    register: cert

Example playbook to revoke an existing certificate:

---
- name: Revoke certificate
  hosts: ipaserver

  tasks:
  - name Revoke a certificate
    ipacert:
      ipaadmin_password: SomeADMINpassword
      serial_number: 123456789
      reason: 5
      state: revoked

When revoking a certificate a mnemonic can also be used to set the revocation reason:

---
- name: Revoke certificate
  hosts: ipaserver

  tasks:
  - name Revoke a certificate
    ipacert:
      ipaadmin_password: SomeADMINpassword
      serial_number: 123456789
      reason: cessationOfOperation
      state: revoked

Example to hold a certificate (alias for revoking a certificate with reason certificateHold (6)):

---
- name: Hold a certificate
  hosts: ipaserver

  tasks:
  - name: Hold certificate
    ipacert:
      ipaadmin_password: SomeADMINpassword
      serial_number: 0xAB1234
      state: held

Example playbook to release hold of certificate (may be used with any revoked certificates, despite of the rovoke reason):

---
- name: Release hold
  hosts: ipaserver

  tasks:
  - name: Take a revoked certificate off hold
    ipacert:
      ipaadmin_password: SomeADMINpassword
      serial_number: 0xAB1234
      state: released

Example playbook to retrieve a certificate and save it to a file in the target node:

---
- name: Retriev certificate
  hosts: ipaserver

  tasks:
  - name: Retrieve a certificate and save it to file 'cert.pem'
    ipacert:
      ipaadmin_password: SomeADMINpassword
      certificate_out: cert.pem
      state: retrieved

ipacert

Variable Description Required
ipaadmin_principal The admin principal is a string and defaults to admin no
ipaadmin_password The admin password is a string and is required if there is no admin ticket available on the node no
ipaapi_context The context in which the module will execute. Executing in a server context is preferred. If not provided context will be determined by the execution environment. Valid values are server and client. no
ipaapi_ldap_cache Use LDAP cache for IPA connection. The bool setting defaults to yes. (bool) no
csr X509 certificate signing request, in PEM format. yes, if state: requested
principal Host/service/user principal for the certificate. yes, if state: requested
add | add_principal Automatically add the principal if it doesn't exist (service principals only). (bool) no
profile_id | profile Certificate Profile to use no
ca Name of the issuing certificate authority. no
chain Include certificate chain in output. (bool) no
serial_number Certificate serial number. (int) yes, if state is retrieved, held, released or revoked.
revocation_reason | reason Reason for revoking the certificate. Use one of the reason strings, or the corresponding value: "unspecified" (0), "keyCompromise" (1), "cACompromise" (2), "affiliationChanged" (3), "superseded" (4), "cessationOfOperation" (5), "certificateHold" (6), "removeFromCRL" (8), "privilegeWithdrawn" (9), "aACompromise" (10) yes, if state: revoked
certificate_out Write certificate (chain if chain is set) to this file, on the target node. no
state The state to ensure. It can be one of requested, held, released, revoked, or retrieved. held is the same as revoke with reason "certificateHold" (6). released is the same as cert-revoke-hold on IPA CLI, releasing the hold status of a certificate. yes

Return Values

Values are returned only if state is requested or retrieved and if certificate_out is not defined.

Variable Description Returned When
certificate Certificate fields and data. (dict)
Options:		 if state is requested or retrieved and if certificate_out is not defined
  certificate - Issued X509 certificate in PEM encoding. Will include certificate chain if chain: true. (list) always
  san_dnsname - X509 Subject Alternative Name. When DNSNames are present in the Subject Alternative Name extension of the issued certificate.
  issuer - X509 distinguished name of issuer. always
  subject - X509 distinguished name of certificate subject. always
  serial_number - Serial number of the issued certificate. (int) always
  revoked - Revoked status of the certificate. (bool) if certificate was revoked
  owner_user - The username that owns the certificate. if state: retrieved and certificate is owned by a user
  owner_host - The host that owns the certificate. if state: retrieved and certificate is owned by a host
  owner_service - The service that owns the certificate. if state: retrieved and certificate is owned by a service
  valid_not_before - Time when issued certificate becomes valid, in GeneralizedTime format (YYYYMMDDHHMMSSZ) always
  valid_not_after - Time when issued certificate ceases to be valid, in GeneralizedTime format (YYYYMMDDHHMMSSZ) always

Authors

Sam Morris Rafael Jeffman