Ansible Role linuxfabrik.lfops.icinga2_master¶

This role installs and configures Icinga2 as a monitoring master.

Available since LFOps 2.0.0.

Dependent Roles¶

Any LFOps playbook that installs this role runs these for you. Optional ones can be disabled via the playbook's skip variables.

InfluxDB must be installed with a database and a user for said database (role: linuxfabrik.lfops.influxdb).
MariaDB must be installed with a database and a user for said database (role: linuxfabrik.lfops.mariadb_server).
On RHEL-compatible systems, the icinga2_can_connect_all, icinga2_run_sudo and nagios_run_sudo SELinux booleans must be enabled (role: linuxfabrik.lfops.selinux).

Tags¶

icinga2_master

Installs and configures Icinga2 as a master.
Triggers: icinga2.service restart.

icinga2_master:api_users

Manages the Icinga2 API users.
Triggers: icinga2.service restart.

icinga2_master:logrotate

Deploys the Icinga2 logrotate config. Serves as a hotfix for the following issue: RLIMIT permission warnings.
Triggers: none.

icinga2_master:state

Manages the state of the Icinga2 service.
Triggers: none.

Mandatory Role Variables¶

icinga2_master__enrolment_api_user

The API account for generating tickets. This can be used to enrol new hosts.
Type: Dictionary.

icinga2_master__influxdb_login

The user account for accessing the Icinga2 InfluxDB database.
Type: Dictionary.

Example:

# mandatory
icinga2_master__enrolment_api_user:
  username: 'enrolment-user'
  password: 'linuxfabrik'
icinga2_master__influxdb_login:
  username: 'icinga2'
  password: 'linuxfabrik'

Optional Role Variables¶

icinga2_master__api_users__host_var / icinga2_master__api_users__group_var

A list of dictionaries for the Icinga2 API users.
Type: List of dictionaries.
Default: []
Subkeys:
- password:
  - Mandatory. The password of the API user.
  - Type: String.
- permissions:
  - Mandatory. The permissions for the API user. Have a look at the example and https://icinga.com/docs/icinga-2/latest/doc/12-icinga2-api/#icinga2-api-permissions.
  - Type: List or String.
- state:
  - Optional. Either present or absent.
  - Type: String.
- username:
  - Mandatory. The username of the API user.
  - Type: String.

icinga2_master__bind_host

The bind host. This allows restricting on which IP addresses Icinga2 is listening.
Type: String.
Default: unset

icinga2_master__cn

The common name of the Icinga2 master. Tries to default to the FQDN of the server.
Type: String.
Default: '{{ ansible_facts["nodename"] }}'

icinga2_master__influxdb_database_name

The name of the InfluxDB database.
Type: String.
Default: 'icinga2'

icinga2_master__influxdb_host

The host on which the InfluxDB database is reachable.
Type: String.
Default: 'localhost'

icinga2_master__influxdb_retention

Determines how long InfluxDB should keep the Icinga2 data. If specified, it should be INF or at least one hour.
Type: String.
Default: '216d'

icinga2_master__service_enabled

Enables or disables the Icinga2 service, analogous to systemctl enable/disable --now.
Type: Bool.
Default: true

Example:

# optional
icinga2_master__api_users__group_var: []
icinga2_master__api_users__host_var:
  - username: 'dashboard' # for example for grafinga
    password: "{{ lookup('linuxfabrik.lfops.bitwarden_item',
        {
          'hostname': inventory_hostname,
          'purpose': 'Icinga2 API',
          'username': 'dashboard',
          'collection_id': lfops__bitwarden_collection_id,
          'organization_id': lfops__bitwarden_organization_id,
        },
      )['password'] }}"
    permissions:
      - 'objects/query/*'
      - 'status/query'
  - username: 'downtime-user'
    password: 'linuxfabrik'
    permissions:
      - 'actions/schedule-downtime'
      - 'actions/remove-downtime'
      - 'actions/reschedule-check'
    state: 'present'
  - username: 'ticket-user'
    password: 'linuxfabrik'
    permissions:
      - 'actions/generate-ticket'
    state: 'present'
  - username: 'check-logfile-windows-api-user'
    password: 'linuxfabrik'
    permissions: |-
      [
      {% raw %}
        {
          permission = "objects/query/Service"
          filter = {{ regex("^check-logfile-windows-api-user", service.vars.logfile_windows_icinga_username ) }}
        }
      {% endraw %}
      ]
    state: 'present'
icinga2_master__bind_host: '192.0.2.12'
icinga2_master__cn: '{{ ansible_facts["nodename"] }}'
icinga2_master__influxdb_database_name: 'icinga2'
icinga2_master__influxdb_host: 'localhost'
icinga2_master__influxdb_retention: '216d'
icinga2_master__service_enabled: true

Optional Role Variables - Primary-Secondary Setup¶

Adjust the following variables for the secondary Icinga2 master.

icinga2_master__additional_master_endpoints

A list of endpoints which should be in the Icinga2 master zone. For example, the primary Icinga2 master endpoint on the secondary, and vice versa.
Type: List of dictionaries.
Default: []
Subkeys:
- cn:
  - Mandatory. The common name of the additional Icinga2 master. This should be equal to icinga2_master__cn on the additional master.
  - Type: String.
- host:
  - Mandatory. The hostname or IP of the additional Icinga2 master.
  - Type: String.
- port:
  - Optional. Icinga2 Port.
  - Type: Number.
  - Default: 5665

icinga2_master__api_ticket_login

The Icinga2 API user which should be used to create a ticket for CSR (certificate signing request) auto-signing. The user needs to have the actions/generate-ticket permission.
Type: Dictionary.
Default: '{{ icinga2_master__enrolment_api_user }}'

icinga2_master__influxdb_enable_ha

If high availability should be enabled for the InfluxDB database or not. Have a look at https://icinga.com/docs/icinga-2/latest/doc/14-features/#influxdb-in-cluster-ha-zones.
Type: Bool.
Default: false

icinga2_master__influxdb_ssl_enable

If SSL should be enabled for the InfluxDB database connection. Have a look at https://icinga.com/docs/icinga-2/latest/doc/09-object-types/#objecttype-influxdbwriter.
Type: Bool.
Default: false

icinga2_master__node_role

The role of this Icinga2 node. Possible options: primary, secondary.
Type: String.
Default: 'primary'

icinga2_master__primary_host

The host on which the Icinga2 master is running. Needs to be reachable from the secondary node.
Type: String.
Default: unset

icinga2_master__primary_port

The port on which the Icinga2 master is running. Needs to be reachable from the secondary node.
Type: Number.
Default: 5665

Example:

# primary-secondary
icinga2_master__additional_master_endpoints:
  - cn: 'master1.example.com'
    host: 'master1.example.com'
    port: 5666
icinga2_master__api_ticket_login:
  username: 'ticket-user'
  password: 'linuxfabrik'
icinga2_master__influxdb_enable_ha: false
icinga2_master__influxdb_ssl_enable: false
icinga2_master__node_role: 'primary'
icinga2_master__primary_host: 'master1.example.com'
icinga2_master__primary_port: 5666

License¶

The Unlicense

Author Information¶

Linuxfabrik GmbH, Zurich