undercloud_process_count

Role Documentation

Welcome to the “undercloud_process_count” role documentation.

Role Defaults

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

max_process_count: 8

Role Variables: main.yaml

metadata:
  description: 'The default settings for OpenStack is to run one process (heat-engine,
    keystone, etc.) per CPU core. On a machine with a lot of cores this is both unnecessary
    and can consume a significant amount of RAM, leading to crashes due to OOMKiller.

    '
  groups:
  - pre-deployment
  name: Check the number of OpenStack processes on undercloud

Molecule Scenarios

Molecule is being used to test the “undercloud_process_count” 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: podman
log: true
platforms:
- dockerfile: ../../../../.config/molecule/Dockerfile
  environment:
    http_proxy: '{{ lookup(''env'', ''http_proxy'') }}'
    https_proxy: '{{ lookup(''env'', ''https_proxy'') }}'
  hostname: centos
  image: centos/centos:stream8
  name: centos
  pkg_extras: python*-setuptools python*-pyyaml
  privileged: true
  registry:
    url: quay.io
  ulimits:
  - host
  volumes:
  - /etc/ci/mirror_info.sh:/etc/ci/mirror_info.sh:ro
provisioner:
  env:
    ANSIBLE_LIBRARY: ${ANSIBLE_LIBRARY:-/usr/share/ansible/plugins/modules}
    ANSIBLE_ROLES_PATH: ${ANSIBLE_ROLES_PATH}:${HOME}/zuul-jobs/roles
    ANSIBLE_STDOUT_CALLBACK: yaml
  inventory:
    hosts:
      all:
        hosts:
          centos:
            ansible_python_interpreter: /usr/bin/python3
  log: true
  name: ansible
  options:
    vvv: true
scenario:
  test_sequence:
  - destroy
  - create
  - prepare
  - converge
  - verify
  - destroy
verifier:
  name: ansible
Molecule Inventory
hosts:
  all:
    hosts:
      centos:
        ansible_python_interpreter: /usr/bin/python3
Example default playbook
- gather_facts: false
  hosts: all
  name: Converge
  tasks:
  - fail:
      msg: This role needs molecule tests!
    name: Warn developers about the lack of molecule testing