Domain that should be used for constructing the base DN of default user LDAP

  database. This should be a sub-domain dedicated to organisation. The base DN

  will be constructed by putting all elements of the sub-domain as ``dc``

  entries (as per standard Debian convention). E.g. ``example.com`` would get

  transformed into ``dc=example,dc=com``.

**ldap_server_organization** (string, optional, ``Private``)

  Organization that should be specified in the base DN entry.

**ldap_server_log_level** (string, optional, ``256``)

  Log level to use for the server. This should be compatible with OpenLDAP

  configuration option ``olcLogLevel``. See `OpenLDAP Administrator's Guide

  <http://www.openldap.org/doc/admin24/slapdconf2.html#cn=config>` for value

  description and syntax.

**ldap_server_tls_certificate** (string, mandatory)

  X.509 certificate used for TLS for LDAP service. The file will be stored in

  directory ``/etc/ssl/certs/`` under name ``{{ ansible_fqdn }}_ldap.pem``.

**ldap_server_tls_key** (string, mandatory)

  Private key used for TLS for LDAP service. The file will be stored in

  directory ``/etc/ssl/private/`` under name ``{{ ansible_fqdn }}_ldap.key``.

**ldap_server_ssf** (number, optional, ``128``)

  Minimum *Security Strength Factor* to require from all incoming

  connections. This applies for both remote and local connections.

**ldap_tls_ciphers** (string, optional ``NONE:+VERS-TLS1.2:+CTYPE-X509:+COMP-NULL:+SIGN-RSA-SHA256:+SIGN-RSA-SHA384:+SIGN-RSA-SHA512:+DHE-RSA:+ECDHE-RSA:+SHA256:+SHA384:+SHA512:+AEAD:+AES-128-GCM:+AES-256-GCM:+CHACHA20-POLY1305:+CURVE-ALL``)

  .. warning::

     Under Debian Stretch, the DHE ciphers are not usable due to a bug

     present in OpenLDAP 2.4.44. See

     https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/1656979

     for details.

  TLS ciphers to enable on the LDAP server. This should be a GnuTLS-compatible

  cipher specification that should also include what TLS protocol versions

  should be used. Value should be compatible with OpenLDAP server option

  ``olcTLSCipherSuite``. Default value allows only TLSv1.2 and strong PFS

  ciphers.

Distribution compatibility

~~~~~~~~~~~~~~~~~~~~~~~~~~

Role is compatible with the following distributions:

- Debian 9 (Stretch)

Examples

~~~~~~~~

Here is an example configuration for setting-up LDAP server:

.. code-block:: yaml

  ---

  ldap_server_domain: "example.com"

  ldap_server_organization: "Example Corporation"

  ldap_server_log_level: 256

  ldap_server_tls_certificate: "{{ lookup('file', '~/tls/ldap.example.com_ldap.pem') }}"

  ldap_server_tls_key: "{{ lookup('file', '~/tls/ldap.example.com_ldap.key') }}"

  ldap_server_ssf: 128

  ldap_permissions:

    - >

      to *

      by dn.exact=gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth manage

      by * break

    - >

      to attrs=userPassword,shadowLastChange

      by self write

      by anonymous auth

      by dn="cn=admin,dc=example,dc=com" write

      by * none

    - >

      to dn.base=""

      by * read

    - >

      to *

      by self write

      by dn="cn=admin,dc=example,dc=com" write

      by users read

      by * none

  ldap_entries:

    - dn: ou=people,dc=example,dc=com

      attributes:

        objectClass: organizationalUnit

        ou: people

    - dn: ou=groups,dc=example,dc=com

      attributes:

        objectClass: organizationalUnit

        ou: groups

---

dependencies:

  - common

  - ldap_client

  - role: backup

    when: enable_backup

    backup_patterns_filename: "ldap_server"

    backup_patterns:

      - "/srv/backup/slapd.bak"

galaxy_info:

  author: Branko Majic

  description: Sets-up an OpenLDAP server

  license: BSD

  min_ansible_version: 2.9

  platforms:

    - name: Debian

      versions:

        - 9

---

dependency: {}

driver:

  name: vagrant

  provider:

    name: virtualbox

lint:

  name: yamllint

  options:

    config-file: ../../.yamllint.yml

platforms:

  - name: client

    memory: 512

    cpus: 1

    interfaces:

      - auto_config: true

        ip: 10.31.127.10

        network_name: private_network

        type: static

  - name: parameters-mandatory-stretch64

    groups:

      - parameters-mandatory

    box: debian/contrib-stretch64

    memory: 256

    cpus: 1

    interfaces:

      - auto_config: true

        ip: 10.31.127.22

        network_name: private_network

        type: static

  - name: parameters-optional-stretch64

    groups:

      - parameters-optional

      - backup-server

    box: debian/contrib-stretch64

    memory: 256

    cpus: 1

    interfaces:

      - auto_config: true

        ip: 10.31.127.23

        network_name: private_network

        type: static

provisioner:

  name: ansible

  playbooks:

    cleanup: cleanup.yml

  config_options:

    defaults:

      force_valid_group_names: "ignore"

      interpreter_python: "/usr/bin/python3"

    ssh_connection:

      pipelining: "True"

  lint:

    name: ansible-lint

scenario:

  name: default

verifier:

  name: testinfra

  lint:

    name: flake8

---

- name: Set-up fixtures

  hosts: localhost

  connection: local

  gather_facts: false

  tasks:

    - name: Initialise CA hierarchy

      command: "gimmecert init"

      args:

        creates: ".gimmecert/ca/level1.cert.pem"

        chdir: "tests/data/"

    - name: Generate server private keys and certificates

      command:

      args:

        chdir: "tests/data/"

        creates: ".gimmecert/server/{{ item.name }}.cert.pem"

        argv:

          - "gimmecert"

          - "server"

          - "{{ item.name }}"

          - "{{ item.fqdn }}"

      with_items:

        - name: parameters-mandatory-stretch64_ldap

          fqdn: parameters-mandatory

        - name: parameters-optional-stretch64_ldap

          fqdn: parameters-optional

    - name: Set-up link to generated X.509 material

      file:

        src: ".gimmecert"

        dest: "tests/data/x509"

        state: link

- name: Prepare

  hosts: all

  gather_facts: false

  tasks:

    - name: Install python for Ansible

      raw: test -e /usr/bin/python3 || (apt -y update && apt install -y python3-minimal)

      become: true

      changed_when: false

- hosts: all

  become: true

  tasks:

    - name: Update all caches to avoid errors due to missing remote archives

      apt:

        update_cache: true

      changed_when: false

    - name: Deploy CA certificate

      copy:

        src: tests/data/x509/ca/level1.cert.pem

        dest: /etc/ssl/certs/testca.cert.pem

        owner: root

        group: root

        mode: 0644

- hosts: client

  become: true

  tasks:

    - name: Install tool for teting TCP connectivity

      apt:

        name: hping3

        state: present

    - name: Set-up /etc/hosts with entries for all servers

      lineinfile:

        path: /etc/hosts

        regexp: "^{{ item.key }}"

        line: "{{ item.key }} {{ item.value }}"

        owner: root

        group: root

        mode: 0644

        state: present

      with_dict:

        10.31.127.22: parameters-mandatory-stretch64

        10.31.127.23: parameters-optional-stretch64

- hosts: parameters-optional

  become: true

  tasks:

    - name: Set-up the hosts file

      lineinfile:

        path: /etc/hosts

        regexp: "^{{ item.key }}"

        line: "{{ item.key }} {{ item.value }}"

        owner: root

        group: root

        mode: 0644

        state: present

      with_dict:

        127.0.2.1: parameters-optional

- hosts: parameters-mandatory

  become: true

  tasks:

    - name: Set-up the hosts file

      lineinfile:

        path: /etc/hosts

        regexp: "^{{ item.key }}"

        line: "{{ item.key }} {{ item.value }}"

        owner: root

        group: root

        mode: 0644

        state: present

      with_dict:

        127.0.2.1: parameters-mandatory

- hosts: backup-server

  become: true

  roles:

    - role: backup_server

      backup_host_ssh_private_keys:

        rsa: "{{ lookup('file', 'tests/data/ssh/server_rsa') }}"

        ed25519: "{{ lookup('file', 'tests/data/ssh/server_ed25519') }}"

        ecdsa: "{{ lookup('file', 'tests/data/ssh/server_ecdsa') }}"

      backup_clients:

        - server: localhost

          ip: 127.0.0.1

          public_key: "{{ lookup('file', 'tests/data/ssh/parameters-optional.pub') }}"

- hosts: parameters-mandatory,parameters-optional

  become: true