Support for sending OS command to LPAR/partition

[andy-maier]

Add support for sending an OS command to the OS running in an LPAR or partition, using the existing zhmcclient Lpar.send_os_command() and Partition.send_os_command() methods.

That support will not be idempotent.

This had been requested earlier in issue #565.

Here is a way to do that today, using the Ansible uri module to issue the HMC operation directly, and a session ID from the ibm_zhmc.zhmc_session module.

- name: Create an HMC session
  zhmc_session:
    hmc_host: "{{ my_hmc_host }}"
    hmc_auth:
      userid: "{{ my_hmc_userid }}"
      password: "{{ my_hmc_password }}"
      verify: false
    action: create
  register: session
  no_log: true

- name: "Send OS command {{ my_cmd }}"
  ansible.builtin.uri:
    url: "{{ session.hmc_host }}:6794{{ lpar_uri }}/operations/send-os-cmd"
    method: POST
    body:
      is-priority: false
      operating-system-command-text: "{{ my_cmd }}"
    headers:
      x-api-session: "{{ session.hmc_auth.session_id }}"
    validate_certs: no
    status_code: 204

- name: Delete the HMC session
  zhmc_session:
    hmc_host: "{{ session.hmc_host }}"  
    hmc_auth: "{{ session.hmc_auth }}"
    action: delete

[andy-maier]

ScYang1991: PR #1033 is adding support for executing OS consosle commands in LPARs and partitions. The new modules return the command output, so you do not have to get and compare the messages in the playbook.