OpenStack-Ansible mistral role¶

# Installation method
mistral_install_method: "source"

# venv_download, even when true, will use the fallback method of building the
# venv from scratch if the venv download fails.
mistral_venv_download: "{{ not mistral_developer_mode | bool }}"
mistral_venv_download_url: http://127.0.0.1/venvs/untagged/ubuntu/mistral.tgz

# Operating system user & groups
mistral_system_user_name: mistral
mistral_system_group_name: mistral
mistral_system_shell: /sbin/nologin
mistral_system_comment: Mistral Daemons
mistral_system_user_home: /var/lib/mistral

# Distribution deployment
mistral_package_state: latest
mistral_pip_package_state: latest

# This variable is used by the repo_build process to determine
# which host group to check for members of before building the
# pip packages required by this role. The value is picked up
# by the py_pkgs lookup.
mistral_role_project_group: mistral_all

# Source package builds
mistral_developer_mode: false
mistral_git_repo: https://git.openstack.org/openstack/mistral
mistral_git_install_branch: master
mistral_developer_constraints:
  - "git+{{ mistral_git_repo }}@{{ mistral_git_install_branch }}#egg=mistral"
mistral_pip_packages:
  - mistral
  - PyMySQL
  - python-memcached
  - uwsgi
mistral_optional_oslomsg_amqp1_pip_packages:
  - oslo.messaging[amqp1]
mistral_venv_tag: "{{ venv_tag | default('untagged') }}"
mistral_bin: "{{ _mistral_bin }}"
# TODO(odyssey4me):
# This can be simplified once all the roles are using
# python_venv_build. We can then switch to using a
# set of constraints in pip.conf inside the venv,
# perhaps prepared by giving a giving a list of
# constraints to the role.
mistral_pip_install_args: >-
  {{ mistral_developer_mode | ternary(pip_install_developer_constraints | default('--constraint /opt/developer-pip-constraints.txt'), '') }}
  {{ (pip_install_upper_constraints is defined) | ternary('--constraint ' + pip_install_upper_constraints | default(''), '') }}
  {{ pip_install_options | default('') }}

# Services
mistral_services:
  mistral-notifier:
    group: mistral_notifier
    service_name: mistral-notifier
    init_config_overrides: "{{ mistral_notifier_init_overrides }}"
    start_order: 1
    execstarts: "{{ _mistral_bin }}/mistral-server --server notifier"
  mistral-executor:
    group: mistral_executor
    service_name: mistral-executor
    init_config_overrides: "{{ mistral_executor_init_overrides }}"
    start_order: 1
    execstarts: "{{ _mistral_bin }}/mistral-server --server executor"
  mistral-engine:
    group: mistral_engine
    service_name: mistral-engine
    init_config_overrides: "{{ mistral_engine_init_overrides }}"
    start_order: 1
    execstarts: "{{ _mistral_bin }}/mistral-server --server engine"
  mistral-api:
    group: mistral_api
    service_name: mistral-api
    init_config_overrides: "{{ mistral_api_init_overrides }}"
    start_order: 2
    wsgi_overrides: "{{ mistral_api_uwsgi_ini_overrides }}"
    wsgi_app: true
    wsgi_name: mistral-wsgi-api
    uwsgi_bind_address: "{{ mistral_bind_address }}"
    uwsgi_port: "{{ mistral_service_port }}"
    execstarts: "{{ mistral_uwsgi_bin }}/uwsgi --autoload --ini /etc/uwsgi/mistral-api.ini"
    execreloads: "{{ mistral_uwsgi_bin }}/uwsgi --reload /var/run/mistral-api/mistral-api.pid"

# UWSGI settings
mistral_wsgi_processes_max: 16
mistral_wsgi_processes: "{{ [[ansible_processor_vcpus|default(1), 1] | max * 2, mistral_wsgi_processes_max] | min }}"
mistral_wsgi_buffer_size: 65535
mistral_wsgi_threads: 1

# RPC
mistral_oslomsg_rpc_host_group: "{{ oslomsg_rpc_host_group | default('rabbitmq_all') }}"
mistral_oslomsg_rpc_setup_host: "{{ (mistral_oslomsg_rpc_host_group in groups) | ternary(groups[mistral_oslomsg_rpc_host_group][0], 'localhost') }}"
mistral_oslomsg_rpc_transport: "{{ oslomsg_rpc_transport | default('rabbit') }}"
mistral_oslomsg_rpc_servers: "{{ oslomsg_rpc_servers | default('127.0.0.1') }}"
mistral_oslomsg_rpc_port: "{{ oslomsg_rpc_port | default('5672') }}"
mistral_oslomsg_rpc_use_ssl: "{{ oslomsg_rpc_use_ssl | default(False) }}"
mistral_oslomsg_rpc_userid: mistral
mistral_oslomsg_rpc_vhost: /mistral

# Notify
mistral_oslomsg_notify_host_group: "{{ oslomsg_notify_host_group | default('rabbitmq_all') }}"
mistral_oslomsg_notify_setup_host: "{{ (mistral_oslomsg_notify_host_group in groups) | ternary(groups[mistral_oslomsg_notify_host_group][0], 'localhost') }}"
mistral_oslomsg_notify_transport: "{{ oslomsg_notify_transport | default('rabbit') }}"
mistral_oslomsg_notify_servers: "{{ oslomsg_notify_servers | default('127.0.0.1') }}"
mistral_oslomsg_notify_port: "{{ oslomsg_notify_port | default('5672') }}"
mistral_oslomsg_notify_use_ssl: "{{ oslomsg_notify_use_ssl | default(False) }}"
mistral_oslomsg_notify_userid: "{{ mistral_oslomsg_rpc_userid }}"
mistral_oslomsg_notify_password: "{{ mistral_oslomsg_rpc_password }}"
mistral_oslomsg_notify_vhost: "{{ mistral_oslomsg_rpc_vhost }}"

# (Qdrouterd) integration
mistral_oslomsg_amqp1_enabled: "{{ mistral_oslomsg_rpc_transport == 'amqp' }}"

# Database
mistral_db_setup_host: "{{ ('galera_all' in groups) | ternary(groups['galera_all'][0], 'localhost') }}"
mistral_galera_address: "{{ galera_address | default('127.0.0.1') }}"
mistral_galera_database: mistral
mistral_galera_user: mistral

# Configuration options
mistral_debug: "{{ debug | default(false) }}"
mistral_bind_address: 0.0.0.0
mistral_service_port: 8989

# Overrides
mistral_notifier_init_overrides: {}
mistral_executor_init_overrides: {}
mistral_engine_init_overrides: {}
mistral_api_init_overrides: {}
mistral_api_uwsgi_ini_overrides: {}
mistral_mistral_conf_overrides: {}
mistral_policy_overrides: {}

# Service setup
mistral_service_setup_host: "{{ openstack_service_setup_host | default('localhost') }}"
mistral_service_setup_host_python_interpreter: "{{ openstack_service_setup_host_python_interpreter | default((mistral_service_setup_host == 'localhost') | ternary(ansible_playbook_python, ansible_python['executable'])) }}"
mistral_service_name: mistral
mistral_service_type: workflowv2
mistral_service_description: OpenStack Workflow service
mistral_service_in_ldap: false
mistral_service_user_domain_id: default
mistral_service_user_name: mistral
mistral_service_project_domain_id: default
mistral_service_project_name: service
mistral_role_name: admin
mistral_service_region: RegionOne
mistral_service_proto: http
mistral_service_publicuri_proto: "{{ openstack_service_publicuri_proto | default(mistral_service_proto) }}"
mistral_service_publicurl: "{{ mistral_service_publicuri_proto }}://{{ external_lb_vip_address }}:{{ mistral_service_port }}/v2"
mistral_service_internaluri_proto: "{{ openstack_service_internaluri_proto | default(mistral_service_proto) }}"
mistral_service_internalurl: "{{ mistral_service_internaluri_proto }}://{{ internal_lb_vip_address }}:{{ mistral_service_port }}/v2"
mistral_service_adminuri_proto: "{{ openstack_service_adminuri_proto | default(mistral_service_proto) }}"
mistral_service_adminurl: "{{ mistral_service_adminuri_proto }}://{{ internal_lb_vip_address }}:{{ mistral_service_port }}/v2"