# bigip_monitor_dns – Manage DNS monitors on a BIG-IP

New in version 2.7.

- Synopsis

- Parameters

- Notes

- Examples

- Return Values

- Status

## Synopsis

- Manages DNS monitors on a BIG-IP.

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---

accept_rcode
string

Choices:
- no-error
- anything

Specifies the RCODE required in the response for an up status.
When creating a new monitor, if this parameter is not specified, the default value is `no-error`.
When `no-error`, specifies that the status of the node will be marked up if the received DNS message has no error.
When `anything`, specifies that the status of the node will be marked up irrespective of the RCODE in the DNS message received.
If this parameter is set to `anything`, it will disregard the `receive` string, and nullify it if the monitor is being updated.

adaptive
boolean

Choices:
- no
- yes

Specifies whether adaptive response time monitoring is enabled for this monitor.
When `yes`, the monitor determines the state of a service based on how divergent from the mean latency a monitor probe for that service is allowed to be. Also, values for the `allowed_divergence`, `adaptive_limit`, and and `sampling_timespan` will be enforced.
When `disabled`, the monitor determines the state of a service based on the `interval`, `up_interval`, `time_until_up`, and `timeout` monitor settings.

adaptive_limit
integer

Specifies the absolute number of milliseconds that may not be exceeded by a monitor probe, regardless of `allowed_divergence` setting, for a probe to be considered successful.
This value applies regardless of the value of the `allowed_divergence` setting.
While this value can be configured when `adaptive` is `no`, it will not take effect on the system until `adaptive` is `yes`.

allowed_divergence_type
string

Choices:
- relative
- absolute

When specifying a new monitor, if `adaptive` is `yes`, the default is `relative`
When `absolute`, the number of milliseconds the latency of a monitor probe can exceed the mean latency of a monitor probe for the service being probed. In typical cases, if the monitor detects three probes in a row that miss the latency value you set, the pool member or node is marked down.
When `relative`, the percentage of deviation the latency of a monitor probe can exceed the mean latency of a monitor probe for the service being probed.

allowed_divergence_value integer |  | When specifying a new monitor, if `adaptive` is `yes`, and `type` is `relative`, the default is `25` percent.

answer_section_contains
string

Choices:
- any-type
- anything
- query-type

Specifies the type of DNS query that the monitor sends.
When creating a new monitor, if this value is not specified, the default value is `query-type`.
When `query-type`, specifies that the response should contain at least one answer of which the resource record type matches the query type.
When `any-type`, specifies that the DNS message should contain at least one answer.
When `anything`, specifies that an empty answer is enough to mark the status of the node up.

description string |  | The description of the monitor.
interval integer |  | The interval specifying how frequently the monitor instance of this template will run. This value must be less than the `timeout` value. When creating a new monitor, if this parameter is not provided, the default `5` will be used.
ip string |  | IP address part of the IP/port definition. If this parameter is not provided when creating a new monitor, then the default value will be `*`.

manual_resume
boolean

Choices:
- no
- yes

Specifies whether the system automatically changes the status of a resource to enabled at the next successful monitor check.
If you set this option to `yes`, you must manually re-enable the resource before the system can use it for load balancing connections.
When creating a new monitor, if this parameter is not specified, the default value is `no`.
When `yes`, specifies that you must manually re-enable the resource after an unsuccessful monitor check.
When `no`, specifies that the system automatically changes the status of a resource to enabled at the next successful monitor check.

name string / required |  | Specifies the name of the monitor.
parent string | Default: "/Common/dns" | The parent template of this monitor template. Once this value has been set, it cannot be changed. By default, this value is the `dns` parent on the `Common` partition.
partition string | Default: "Common" | Device partition to manage resources on.
port string |  | Port address part of the IP/port definition. If this parameter is not provided when creating a new monitor, then the default value will be `*`. Note that if specifying an IP address, a value between 1 and 65535 must be specified.
provider dictionary added in 2.5 |  | A dict object containing connection details.
| auth_provider string |  | Configures the auth provider for to obtain authentication tokens from the remote device. This option is really used when working with BIG-IQ devices.
| password string / required |  | The password for the user account used to connect to the BIG-IP. You may omit this option by setting the environment variable `F5_PASSWORD`. aliases: pass, pwd
| server string / required |  | The BIG-IP host. You may omit this option by setting the environment variable `F5_SERVER`.
| server_port integer | Default: 443 | The BIG-IP server port. You may omit this option by setting the environment variable `F5_SERVER_PORT`.
| ssh_keyfile path |  | Specifies the SSH keyfile to use to authenticate the connection to the remote device. This argument is only used for cli transports. You may omit this option by setting the environment variable `ANSIBLE_NET_SSH_KEYFILE`.
| timeout integer |  | Specifies the timeout in seconds for communicating with the network device for either connecting or sending commands. If the timeout is exceeded before the operation is completed, the module will error.

transport
string

Choices:
- cli
- rest ←

Configures the transport connection to use when connecting to the remote device.

| user string / required |  | The username to connect to the BIG-IP with. This user must have administrative privileges on the device. You may omit this option by setting the environment variable `F5_USER`.

validate_certs
boolean

Choices:
- no
- yes ←

If `no`, SSL certificates are not validated. Use this only on personally controlled sites using self-signed certificates.
You may omit this option by setting the environment variable `F5_VALIDATE_CERTS`.

query_name string |  | Specifies a query name for the monitor to use in a DNS query.

query_type
string

Choices:
- a
- aaaa

Specifies the type of DNS query that the monitor sends.
When creating a new monitor, if this parameter is not specified, the default value is `a`.
When `a`, specifies that the monitor will send a DNS query of type A.
When `aaaa`, specifies that the monitor will send a DNS query of type AAAA.

receive string |  | Specifies the IP address that the monitor uses from the resource record sections of the DNS response. The IP address should be specified in the dotted-decimal notation or IPv6 notation.

reverse
boolean

Choices:
- no
- yes

Specifies whether the monitor operates in reverse mode.
When the monitor is in reverse mode, a successful receive string match marks the monitored object down instead of up. You can use the this mode only if you configure the `receive` option.
This parameter is not compatible with the `time_until_up` parameter. If `time_until_up` is specified, it must be `0`. Or, if it already exists, it must be `0`.

sampling_timespan integer |  | Specifies the length, in seconds, of the probe history window that the system uses to calculate the mean latency and standard deviation of a monitor probe. While this value can be configured when `adaptive` is `no`, it will not take effect on the system until `adaptive` is `yes`.

state
string

Choices:
- present ←
- absent

When `present`, ensures that the monitor exists.
When `absent`, ensures the monitor is removed.

time_until_up integer |  | Specifies the amount of time in seconds after the first successful response before a node will be marked up. A value of 0 will cause a node to be marked up immediately after a valid response is received from the node. If this parameter is not provided when creating a new monitor, then the default value will be `0`.

timeout
integer

The number of seconds in which the node or service must respond to the monitor request.
If the target responds within the set time period, it is considered up.
If the target does not respond within the set time period, it is considered down.
You can change this number to any number you want, however, it should be 3 times the interval number of seconds plus 1 second.
If this parameter is not provided when creating a new monitor, then the default value will be `16`.

transparent
boolean

Choices:
- no
- yes

Specifies whether the monitor operates in transparent mode.
Monitors in transparent mode can monitor pool members through firewalls.
When creating a new monitor, if this parameter is not provided, then the default value will be `no`.

up_interval
integer

Specifies the interval for the system to use to perform the health check when a resource is up.
When `0`, specifies that the system uses the interval specified in `interval` to check the health of the resource.
When any other number, enables specification of a different interval to use when checking the health of a resource that is up.
When creating a new monitor, if this parameter is not provided, the default `0` will be used.

## Notes

Note

- For more information on using Ansible to manage F5 Networks devices see https://www.ansible.com/integrations/networks/f5.

- Requires BIG-IP software version >= 12.

- The F5 modules only manipulate the running configuration of the F5 product. To ensure that BIG-IP specific configuration persists to disk, be sure to include at least one task that uses the bigip_config module to save the running configuration. Refer to the module’s documentation for the correct usage of the module to save your running configuration.

## Examples

    - name: Create a DNS monitor
      bigip_monitor_dns:
        name: DNS-UDP-V6
        interval: 2
        query_name: localhost
        query_type: aaaa
        up_interval: 5
        adaptive: no
        state: present
        provider:
          user: admin
          password: secret
          server: lb.mydomain.com
      delegate_to: localhost

## Return Values

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

Key | Returned | Description
--- | --- | ---
accept_rcode string | changed | RCODE required in the response for an up status. Sample: no-error
adaptive boolean | changed | Whether adaptive is enabled or not. Sample: True
adaptive_limit integer | changed | Absolute number of milliseconds that may not be exceeded by a monitor probe. Sample: 200
allowed_divergence_type string | changed | Type of divergence used for adaptive response time monitoring. Sample: absolute
allowed_divergence_value integer | changed | Value of the type of divergence used for adaptive response time monitoring. May be `percent` or `ms` depending on whether `relative` or `absolute`. Sample: 25
answer_section_contains string | changed | Type of DNS query that the monitor sends. Sample: query-type
description string | changed | The description of the monitor. Sample: Important Monitor
interval integer | changed | The new interval in which to run the monitor check. Sample: 2
ip string | changed | The new IP of IP/port definition. Sample: 10.12.13.14
manual_resume string | changed | Whether the system automatically changes the status of a resource to enabled at the next successful monitor check. Sample: query-type
parent string | changed | New parent template of the monitor. Sample: http
port string | changed | Alias port or service for the monitor to check, on behalf of the pools or pool members with which the monitor is associated. Sample: 80
query_name string | changed | Query name for the monitor to use in a DNS query. Sample: foo
query_type string | changed | Type of DNS query that the monitor sends. Either `a` or `aaaa`. Sample: aaaa
receive string | changed | IP address that the monitor uses from the resource record sections of the DNS response. Sample: 2.3.2.4
reverse boolean | changed | Whether the monitor operates in reverse mode. Sample: True
sampling_timespan integer | changed | Absolute number of milliseconds that may not be exceeded by a monitor probe. Sample: 200
time_until_up integer | changed | The new time in which to mark a system as up after first successful response. Sample: 2
timeout integer | changed | The new timeout in which the remote system must respond to the monitor. Sample: 10
transparent boolean | changed | Whether the monitor operates in transparent mode.
up_interval integer | changed | Interval for the system to use to perform the health check when a resource is up.

## Status

- This module is not guaranteed to have a backwards compatible interface. [preview]

- This module is maintained by an Ansible Partner. [certified]

### Authors

- Tim Rupp (@caphrim007)

- Wojciech Wypior (@wojtek0806)

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