undercloud_ram

Role Documentation

Welcome to the “undercloud_ram” role documentation.

Role Defaults

This section highlights all of the defaults and variables set within the “undercloud_ram” role.

min_undercloud_ram_gb: 24

Role Variables: main.yaml

metadata:
  description: 'Verify that the undercloud has enough RAM.

    https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/14/html/director_installation_and_usage/planning-your-undercloud#determining-environment-scale

    '
  groups:
  - prep
  - pre-introspection
  - pre-upgrade
  name: Verify the undercloud fits the RAM requirements

Molecule Scenarios

Molecule is being used to test the “undercloud_ram” role. The following section highlights the drivers in service and provides an example playbook showing how the role is leveraged.

Scenario: default

Example default configuration
driver:
  name: docker
log: true
platforms:
- easy_install:
  - pip
  environment:
    http_proxy: '{{ lookup(''env'', ''http_proxy'') }}'
    https_proxy: '{{ lookup(''env'', ''https_proxy'') }}'
  hostname: centos7
  image: centos:7
  name: centos7
  pkg_extras: python-setuptools
  volumes:
  - /etc/ci/mirror_info.sh:/etc/ci/mirror_info.sh:ro
- environment:
    http_proxy: '{{ lookup(''env'', ''http_proxy'') }}'
    https_proxy: '{{ lookup(''env'', ''https_proxy'') }}'
  hostname: centos8
  image: centos:8
  name: centos8
  pkg_extras: python*-setuptools
  volumes:
  - /etc/ci/mirror_info.sh:/etc/ci/mirror_info.sh:ro
provisioner:
  env:
    ANSIBLE_STDOUT_CALLBACK: yaml
  log: true
  name: ansible
scenario:
  test_sequence:
  - destroy
  - create
  - prepare
  - converge
  - verify
  - destroy
verifier:
  name: testinfra
Example default playbook
- hosts: all
  name: Converge
  tasks:
  - block:
    - include_role:
        name: undercloud_ram
    rescue:
    - meta: clear_host_errors
      name: Clear host errors
    - debug:
        msg: The validation works! End the playbook run
    - meta: end_play
      name: End play
  - fail:
      msg: 'The undercloud_ram role should have detected that there is not

        enough RAM

        '
    name: Fail the test
  vars:
    min_undercloud_ram_gb: 1000000