imc_rest - Manage Cisco IMC hardware through its REST API¶

New in version 2.4.

Synopsis
- Requirements
Parameters
Notes
Examples
Return Values
Status
- Author

Synopsis ¶

Provides direct access to the Cisco IMC REST API.
Perform any configuration changes and actions that the Cisco IMC supports.
More information about the IMC REST API is available from http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/sw/api/3_0/b_Cisco_IMC_api_301.html

Requirements ¶

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

lxml
xmljson >= 0.1.8

Parameters ¶

Parameter	Choices/Defaults	Comments
content		When used instead of `path`, sets the content of the API requests directly. This may be convenient to template simple requests, for anything complex use the template module. You can collate multiple IMC XML fragments and they will be processed sequentially in a single stream, the Cisco IMC output is subsequently merged. Parameter `content` is mutual exclusive with parameter `path`.
hostname required		IP Address or hostname of Cisco IMC, resolvable by Ansible control host. aliases: host, ip
password	Default: password	The password to use for authentication.
path		Name of the absolute path of the filename that includes the body of the http request being sent to the Cisco IMC REST API. Parameter `path` is mutual exclusive with parameter `content`. aliases: src, config_file
protocol	Choices: http https ←	Connection protocol to use.
timeout	Default: 60	The socket level timeout in seconds. This is the time that every single connection (every fragment) can spend. If this `timeout` is reached, the module will fail with a `Connection failure` indicating that `The read operation timed out`.
username	Default: admin	Username used to login to the switch. aliases: user
validate_certs	Choices: no yes ←	If `no`, SSL certificates will not be validated. This should only set to `no` used on personally controlled sites using self-signed certificates.

Notes ¶

Note

The XML fragments don’t need an authentication cookie, this is injected by the module automatically.
The Cisco IMC XML output is being translated to JSON using the Cobra convention.
Any configConfMo change requested has a return status of ‘modified’, even if there was no actual change from the previous configuration. As a result, this module will always report a change on subsequent runs. In case this behaviour is fixed in a future update to Cisco IMC, this module will automatically adapt.
If you get a Connection failure related to The read operation timed out increase the timeout parameter. Some XML fragments can take longer than the default timeout.
More information about the IMC REST API is available from http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/sw/api/3_0/b_Cisco_IMC_api_301.html

Examples ¶

- name: Power down server
  imc_rest:
    hostname: '{{ imc_hostname }}'
    username: '{{ imc_username }}'
    password: '{{ imc_password }}'
    validate_certs: no
    content: |
      <configConfMo><inConfig>
        <computeRackUnit dn="sys/rack-unit-1" adminPower="down"/>
      </inConfig></configConfMo>
  delegate_to: localhost

- name: Configure IMC using multiple XML fragments
  imc_rest:
    hostname: '{{ imc_hostname }}'
    username: '{{ imc_username }}'
    password: '{{ imc_password }}'
    validate_certs: no
    timeout: 120
    content: |
      <!-- Configure Serial-on-LAN -->
      <configConfMo><inConfig>
        <solIf dn="sys/rack-unit-1/sol-if" adminState="enable" speed=="115200" comport="com0"/>
      </inConfig></configConfMo>

      <!-- Configure Console Redirection -->
      <configConfMo><inConfig>
        <biosVfConsoleRedirection dn="sys/rack-unit-1/bios/bios-settings/Console-redirection"
          vpBaudRate="115200"
          vpConsoleRedirection="com-0"
          vpFlowControl="none"
          vpTerminalType="vt100"
          vpPuttyKeyPad="LINUX"
          vpRedirectionAfterPOST="Always Enable"/>
      </inConfig></configConfMo>
  delegate_to: localhost

- name: Enable PXE boot and power-cycle server
  imc_rest:
    hostname: '{{ imc_hostname }}'
    username: '{{ imc_username }}'
    password: '{{ imc_password }}'
    validate_certs: no
    content: |
      <!-- Configure PXE boot -->
      <configConfMo><inConfig>
        <lsbootLan dn="sys/rack-unit-1/boot-policy/lan-read-only" access="read-only" order="1" prot="pxe" type="lan"/>
      </inConfig></configConfMo>

      <!-- Power cycle server -->
      <configConfMo><inConfig>
        <computeRackUnit dn="sys/rack-unit-1" adminPower="cycle-immediate"/>
      </inConfig></configConfMo>
  delegate_to: localhost

- name: Reconfigure IMC to boot from storage
  imc_rest:
    hostname: '{{ imc_host }}'
    username: '{{ imc_username }}'
    password: '{{ imc_password }}'
    validate_certs: no
    content: |
      <configConfMo><inConfig>
        <lsbootStorage dn="sys/rack-unit-1/boot-policy/storage-read-write" access="read-write" order="1" type="storage"/>
      </inConfig></configConfMo>
  delegate_to: localhost

- name: Add customer description to server
  imc_rest:
    hostname: '{{ imc_host }}'
    username: '{{ imc_username }}'
    password: '{{ imc_password }}'
    validate_certs: no
    content: |
        <configConfMo><inConfig>
          <computeRackUnit dn="sys/rack-unit-1" usrLbl="Customer Lab - POD{{ pod_id }} - {{ inventory_hostname_short }}"/>
        </inConfig></configConfMo>
    delegate_to: localhost

- name: Disable HTTP and increase session timeout to max value 10800 secs
  imc_rest:
    hostname: '{{ imc_host }}'
    username: '{{ imc_username }}'
    password: '{{ imc_password }}'
    validate_certs: no
    timeout: 120
    content: |
        <configConfMo><inConfig>
          <commHttp dn="sys/svc-ext/http-svc" adminState="disabled"/>
        </inConfig></configConfMo>

        <configConfMo><inConfig>
          <commHttps dn="sys/svc-ext/https-svc" adminState="enabled" sessionTimeout="10800"/>
        </inConfig></configConfMo>
    delegate_to: localhost

Return Values ¶

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

Key	Returned	Description
aaLogin dict	success	Cisco IMC XML output for the login, translated to JSON using Cobra convention Sample: "attributes": { "cookie": "", "outCookie": "1498902428/9de6dc36-417c-157c-106c-139efe2dc02a", "outPriv": "admin", "outRefreshPeriod": "600", "outSessionId": "114", "outVersion": "2.0(13e)", "response": "yes" }
configConfMo dict	success	Cisco IMC XML output for any configConfMo XML fragments, translated to JSON using Cobra convention
elapsed int	always	Elapsed time in seconds Sample: 31
error dict	failed	Cisco IMC XML error output for last request, translated to JSON using Cobra convention Sample: "attributes": { "cookie": "", "errorCode": "ERR-xml-parse-error", "errorDescr": "XML PARSING ERROR: Element 'computeRackUnit', attribute 'admin_Power': The attribute 'admin_Power' is not allowed. ", "invocationResult": "594", "response": "yes" }
error_code string	failed	Cisco IMC error code Sample: ERR-xml-parse-error
error_text string	failed	Cisco IMC error message Sample: XML PARSING ERROR: Element 'computeRackUnit', attribute 'admin_Power': The attribute 'admin_Power' is not allowed.
input string	failed	RAW XML input sent to the Cisco IMC, causing the error Sample: <configConfMo><inConfig><computeRackUnit dn="sys/rack-unit-1" admin_Power="down"/></inConfig></configConfMo>
output string	failed	RAW XML output eceived from the Cisco IMC, with error details Sample: <error cookie="" response="yes" errorCode="ERR-xml-parse-error" invocationResult="594" errorDescr="XML PARSING ERROR: Element 'computeRackUnit', attribute 'admin_Power': The attribute 'admin_Power' is not allowed.\n"/>
response string	always	HTTP response message, including content length Sample: OK (729 bytes)
status dict	always	The HTTP response status code Sample: 200

Status ¶

This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface.

Author ¶

Dag Wieers (@dagwieers)

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