Andrew Bonney b5bd190e24 Improve image and network cleanup procedure
This adds periodic cleanup of the directory which zun uses to
temporarily cache images loaded from Glance to avoid it becoming
too large.

Docker image cleanup is adjusted to make it less aggressive as
the 'until' filtering has been seen to clear images which were
created more recently than one hour.

The network pruning is removed as this causes zun to become out
of sync with Docker which can prevent creation of new containers
on pruned networks.

Finally, the default is to leave cleanup disabled so that it can
be enabled purely based upon user preference.

As Systemd timers cannot be disabled, this is achieved via a file
presence check with can be overridden for manual execution.

Change-Id: I4532d9975a2e68a12a7755ca3798a59f4928593c
2021-02-19 09:37:32 +00:00

371 lines
15 KiB
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---
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Enable/Disable barbican configurations
zun_barbican_enabled: "{{ (groups['barbican_all'] is defined) and (groups['barbican_all'] | length > 0) }}"
# Enable/Disable designate configurations
zun_designate_enabled: "{{ (groups['designate_all'] is defined) and (groups['designate_all'] | length > 0) }}"
# Notification topics for designate.
zun_notifications_designate: notifications_designate
# Enable/Disable ceilometer configurations
zun_ceilometer_enabled: "{{ (groups['ceilometer_all'] is defined) and (groups['ceilometer_all'] | length > 0) }}"
## Verbosity Options
debug: False
#python venv executable
zun_venv_python_executable: "{{ openstack_venv_python_executable | default('python2') }}"
# Set the host which will execute the shade modules
# for the service setup. The host must already have
# clouds.yaml properly configured.
zun_service_setup_host: "{{ openstack_service_setup_host | default('localhost') }}"
zun_service_setup_host_python_interpreter: "{{ openstack_service_setup_host_python_interpreter | default((zun_service_setup_host == 'localhost') | ternary(ansible_playbook_python, ansible_python['executable'])) }}"
# Set the package install state for distribution packages
# Options are 'present' and 'latest'
zun_package_state: "{{ package_state | default('latest') }}"
zun_git_repo: https://opendev.org/openstack/zun
zun_git_install_branch: master
zun_kuryr_git_repo: https://opendev.org/openstack/kuryr-libnetwork
zun_kuryr_git_install_branch: master
# This is only required until kuryr-libnetwork depends upon a version of kuryr-lib
# which includes https://review.opendev.org/c/openstack/kuryr/+/764908
zun_kuryr_lib_git_repo: https://opendev.org/openstack/kuryr
zun_kuryr_lib_git_install_branch: master
zun_upper_constraints_url: "{{ requirements_git_url | default('https://releases.openstack.org/constraints/upper/' ~ requirements_git_install_branch | default('master')) }}"
zun_git_constraints:
- "--constraint {{ zun_upper_constraints_url }}"
zun_pip_install_args: "{{ pip_install_options | default('') }}"
# Name of the virtual env to deploy into
zun_venv_tag: "{{ venv_tag | default('untagged') }}"
zun_bin: "/openstack/venvs/zun-{{ zun_venv_tag }}/bin"
zun_fatal_deprecations: False
## Zun user information
zun_system_user_name: zun
zun_system_group_name: zun
zun_system_shell: /bin/false
zun_system_comment: zun system user
zun_system_home_folder: "/var/lib/{{ zun_system_user_name }}"
zun_log_dir: "/var/log/zun"
zun_lock_path: "/var/lock/zun"
## Kuryr user information
zun_kuryr_system_user_name: kuryr
zun_kuryr_system_group_name: kuryr
zun_kuryr_system_shell: /bin/false
zun_kuryr_system_comment: kuryr system user
zun_kuryr_system_home_folder: "/var/lib/{{ zun_kuryr_system_user_name }}"
zun_kuryr_log_dir: "/var/log/kuryr"
zun_kuryr_lock_path: "/var/lock/kuryr"
## Docker setup information
zun_docker_package_version: "{{ _zun_docker_package_version }}"
zun_containerd_package_version: "{{ _zun_containerd_package_version }}"
zun_kata_package_version: "{{ _zun_kata_package_version }}"
# Set a list of users that are permitted to execute the docker binary.
zun_docker_users:
- "{{ zun_system_user_name }}"
- "{{ zun_kuryr_system_user_name }}"
# Set the docker api version. The default is false, which will result in no
# option being set in config for api servers. On compute hosts the docker api
# version will be used as determined by the client version information.
zun_docker_api_version: false
# Set the address for Docker to bind to. Used by the wsproxy console forwarder
zun_docker_bind_host: "{{ openstack_service_bind_address | default('0.0.0.0') }}"
zun_docker_bind_port: 2375
# Should Docker image cache data be periodically cleaned up?
zun_docker_prune_images: False
# Time period for which to clean up old Docker data. The options are hour, day,
# month, or year. (string value)
zun_docker_prune_frequency: hour
## Manually specified zun UID/GID
# Deployers can specify a UID for the zun user as well as the GID for the
# zun group if needed. This is commonly used in environments where shared
# storage is used, such as NFS or GlusterFS, and zun UID/GID values must be
# in sync between multiple servers.
#
# WARNING: Changing these values on an existing deployment can lead to
# failures, errors, and instability.
#
# zun_system_user_uid = <UID>
# zun_system_group_gid = <GID>
## Database info
zun_db_setup_host: "{{ openstack_db_setup_host | default('localhost') }}"
zun_db_setup_python_interpreter: "{{ openstack_db_setup_python_interpreter | default((zun_db_setup_host == 'localhost') | ternary(ansible_playbook_python, ansible_python['executable'])) }}"
zun_galera_address: "{{ galera_address | default('127.0.0.1') }}"
zun_galera_user: zun
zun_galera_database: zun
zun_db_max_overflow: 10
zun_db_max_pool_size: 120
zun_db_pool_timeout: 30
# Toggle whether zun connects via an encrypted connection
zun_galera_use_ssl: "{{ galera_use_ssl | default(False) }}"
# The path where to store the database server CA certificate
zun_galera_ssl_ca_cert: "{{ galera_ssl_ca_cert | default('/etc/ssl/certs/galera-ca.pem') }}"
zun_galera_port: "{{ galera_port | default('3306') }}"
## RabbitMQ info
## Configuration for RPC communications
zun_rpc_thread_pool_size: 64
zun_rpc_conn_pool_size: 30
zun_rpc_response_timeout: 60
## Oslo Messaging info
# RPC
zun_oslomsg_rpc_host_group: "{{ oslomsg_rpc_host_group | default('rabbitmq_all') }}"
zun_oslomsg_rpc_setup_host: "{{ (zun_oslomsg_rpc_host_group in groups) | ternary(groups[zun_oslomsg_rpc_host_group][0], 'localhost') }}"
zun_oslomsg_rpc_transport: "{{ oslomsg_rpc_transport | default('rabbit') }}"
zun_oslomsg_rpc_servers: "{{ oslomsg_rpc_servers | default('127.0.0.1') }}"
zun_oslomsg_rpc_port: "{{ oslomsg_rpc_port | default('5672') }}"
zun_oslomsg_rpc_use_ssl: "{{ oslomsg_rpc_use_ssl | default(False) }}"
zun_oslomsg_rpc_userid: zun
zun_oslomsg_rpc_vhost: /zun
# Notify
zun_oslomsg_notify_host_group: "{{ oslomsg_notify_host_group | default('rabbitmq_all') }}"
zun_oslomsg_notify_setup_host: "{{ (zun_oslomsg_notify_host_group in groups) | ternary(groups[zun_oslomsg_notify_host_group][0], 'localhost') }}"
zun_oslomsg_notify_transport: "{{ oslomsg_notify_transport | default('rabbit') }}"
zun_oslomsg_notify_servers: "{{ oslomsg_notify_servers | default('127.0.0.1') }}"
zun_oslomsg_notify_port: "{{ oslomsg_notify_port | default('5672') }}"
zun_oslomsg_notify_use_ssl: "{{ oslomsg_notify_use_ssl | default(False) }}"
zun_oslomsg_notify_userid: "{{ zun_oslomsg_rpc_userid }}"
zun_oslomsg_notify_password: "{{ zun_oslomsg_rpc_password }}"
zun_oslomsg_notify_vhost: "{{ zun_oslomsg_rpc_vhost }}"
# If this is not set, then the playbook will try to guess it.
#zun_virt_type: kvm
## Zun Auth
zun_service_region: "{{ service_region | default('RegionOne') }}"
zun_service_project_name: "service"
zun_service_project_domain_id: default
zun_service_user_domain_id: default
zun_service_user_name: "zun"
zun_service_role_name: "admin"
## Zun Auth for kuryr
zun_kuryr_service_username: kuryr
## Keystone authentication middleware
zun_keystone_auth_plugin: password
## Zun WebSocket Proxy
zun_wsproxy_proto: "{{ (openstack_service_publicuri_proto | default('http') == 'https') | ternary('wss', 'ws') }}"
zun_wsproxy_port: 6784
zun_wsproxy_host: "{{ openstack_service_bind_address | default('0.0.0.0') }}"
zun_wsproxy_base_uri: "{{ zun_wsproxy_proto }}://{{ external_lb_vip_address }}:{{ zun_wsproxy_port }}"
## Zun v1
zun_service_name: zun
zun_service_type: container
zun_service_proto: http
zun_service_publicuri_proto: "{{ openstack_service_publicuri_proto | default(zun_service_proto) }}"
zun_service_adminuri_proto: "{{ openstack_service_adminuri_proto | default(zun_service_proto) }}"
zun_service_internaluri_proto: "{{ openstack_service_internaluri_proto | default(zun_service_proto) }}"
zun_service_address: "{{ openstack_service_bind_address | default('0.0.0.0') }}"
zun_service_port: 9517
zun_kuryr_service_address: 127.0.0.1
zun_kuryr_service_port: 23750
zun_service_description: "Zun Compute Service"
zun_service_publicuri: "{{ zun_service_publicuri_proto }}://{{ external_lb_vip_address }}:{{ zun_service_port }}"
zun_service_publicurl: "{{ zun_service_publicuri }}"
zun_service_adminuri: "{{ zun_service_adminuri_proto }}://{{ internal_lb_vip_address }}:{{ zun_service_port }}"
zun_service_adminurl: "{{ zun_service_adminuri }}"
zun_service_internaluri: "{{ zun_service_internaluri_proto }}://{{ internal_lb_vip_address }}:{{ zun_service_port }}"
zun_service_internalurl: "{{ zun_service_internaluri }}"
zun_service_endpoint_type: internalURL
# If you want to regenerate the zun users SSH keys, on each run, set this var to True
# Otherwise keys will be generated on the first run and not regenerated each run.
zun_recreate_keys: False
## General Zun configuration
# Select between the 'runc' or 'kata' runtime
zun_container_runtime: runc
# If ``zun_osapi_compute_workers`` is unset the system will use half the number of available VCPUS to
# compute the number of api workers to use.
# zun_osapi_compute_workers: 16
# If ``zun_conductor_workers`` is unset the system will use half the number of available VCPUS to
# compute the number of api workers to use.
# zun_conductor_workers: 16
# If ``zun_metadata_workers`` is unset the system will use half the number of available VCPUS to
# compute the number of api workers to use.
# zun_metadata_workers: 16
## Cap the maximun number of threads / workers when a user value is unspecified.
zun_api_threads_max: 16
zun_api_threads: "{{ [[(ansible_processor_vcpus//ansible_processor_threads_per_core)|default(1), 1] | max * 2, zun_api_threads_max] | min }}"
zun_service_in_ldap: "{{ service_ldap_backend_enabled | default(False) }}"
zun_scheduler_default_filters: >-
AvailabilityZoneFilter,
CPUFilter,
ComputeFilter
zun_scheduler_available_filters: zun.scheduler.filters.all_filters
zun_scheduler_driver: filter_scheduler
## uWSGI setup
zun_wsgi_threads: 1
zun_wsgi_processes_max: 16
zun_wsgi_processes: "{{ [[ansible_processor_vcpus|default(1), 1] | max * 2, zun_wsgi_processes_max] | min }}"
## Service Name-Group Mapping
zun_services:
kuryr-libnetwork:
group: zun_compute
service_name: kuryr-libnetwork
condition: "{{ inventory_hostname in groups['zun_compute'] }}"
init_config_overrides: "{{ zun_kuryr_init_defaults | combine(zun_kuryr_init_overrides) }}"
start_order: 3
wsgi_app: True
wsgi: kuryr_libnetwork.server:app
uwsgi_bind_address: "{{ zun_kuryr_service_address }}"
uwsgi_port: "{{ zun_kuryr_service_port }}"
uwsgi_overrides: "{{ zun_kuryr_uwsgi_conf_overrides }}"
uwsgi_uid: "{{ zun_kuryr_system_user_name }}"
uwsgi_guid: "{{ zun_kuryr_system_group_name }}"
zun-api:
group: zun_api
service_name: zun-api
init_config_overrides: "{{ zun_api_init_overrides }}"
start_order: 1
wsgi_app: True
wsgi_path: "{{ zun_bin }}/zun-api-wsgi"
uwsgi_bind_address: "{{ zun_service_address }}"
uwsgi_port: "{{ zun_service_port }}"
uwsgi_overrides: "{{ zun_uwsgi_conf_overrides }}"
uwsgi_uid: "{{ zun_system_user_name }}"
uwsgi_guid: "{{ zun_system_group_name }}"
zun-compute:
group: zun_compute
service_name: zun-compute
init_config_overrides: "{{ zun_compute_init_overrides }}"
start_order: 5
execstarts: "{{ zun_bin }}/zun-compute --config-dir /etc/zun"
zun-wsproxy:
group: zun_api
service_name: zun-wsproxy
init_config_overrides: "{{ zun_wsproxy_init_overrides }}"
start_order: 2
execstarts: "{{ zun_bin }}/zun-wsproxy --config-dir /etc/zun"
zun-docker-cleanup:
group: zun_compute
service_name: zun-docker-cleanup
init_config_overrides: "{{ zun_docker_cleanup_init_overrides }}"
start_order: 6
execstarts: "{{ zun_bin }}/zun-docker-cleanup"
timer:
state: started
options:
OnBootSec: 30min
OnCalendar: "{{ (zun_docker_prune_frequency == 'day') | ternary('daily', zun_docker_prune_frequency+'ly') }}"
Persistent: true
docker:
group: zun_compute
service_name: docker
init_config_overrides: {}
start_order: 4
systemd_overrides_only: True
systemd_overrides: "{{ zun_docker_init_defaults | combine(zun_docker_init_overrides) }}"
# Common pip packages
zun_pip_packages:
- "git+{{ zun_git_repo }}@{{ zun_git_install_branch }}#egg=zun"
- "git+{{ zun_kuryr_lib_git_repo }}@{{ zun_kuryr_lib_git_install_branch }}#egg=kuryr-lib"
- "git+{{ zun_kuryr_git_repo }}@{{ zun_kuryr_git_install_branch }}#egg=kuryr-libnetwork"
- oslo_rootwrap
- osprofiler
- python-memcached
- pymemcache
- python-zunclient
- pymysql
- systemd-python
## (Qdrouterd) integration
# TODO(ansmith): Change structure when more backends will be supported
zun_oslomsg_amqp1_enabled: "{{ zun_oslomsg_rpc_transport == 'amqp' }}"
zun_memcached_servers: "{{ memcached_servers }}"
zun_optional_oslomsg_amqp1_pip_packages:
- oslo.messaging[amqp1]
## Default service options used within all systemd unit files.
zun_service_defaults: {}
## Tunable overrides for services
zun_zun_conf_overrides: {}
zun_rootwrap_conf_overrides: {}
zun_kuryr_conf_overrides: {}
zun_docker_config_overrides: {}
zun_kuryr_config_overrides: {}
zun_uwsgi_conf_overrides: {}
zun_kuryr_uwsgi_conf_overrides:
uwsgi:
pyargv: --config-file /etc/kuryr/kuryr.conf
## Default zun+kuryr options used within the systemd unit file.
zun_kuryr_init_defaults:
Unit:
Before: docker.service
After: network-online.target
Wants: network-online.target
Service:
CapabilityBoundingSet: CAP_NET_ADMIN
AmbientCapabilities: CAP_NET_ADMIN
Group: "{{ zun_kuryr_system_group_name }}"
User: "{{ zun_kuryr_system_user_name }}"
## Default zun+docker options used within the systemd unit file.
zun_docker_init_defaults:
Service:
ExecStart:
- ""
- "/usr/bin/dockerd --group {{ zun_system_group_name }} -H tcp://{{ zun_docker_bind_host }}:{{ zun_docker_bind_port }} -H unix:///var/run/docker.sock --cluster-store etcd://{% for item in groups['zun_api'] %}{{ hostvars[item]['ansible_host'] }}:2379{% if not loop.last %},{% endif %}{% endfor %} --add-runtime kata=/usr/bin/kata-runtime"
## Tunable overrides for service unit files.
zun_api_paste_ini_overrides: {}
zun_api_init_overrides: {}
zun_wsproxy_init_overrides: {}
zun_compute_init_overrides: {}
zun_kuryr_init_overrides: {}
zun_docker_init_overrides: {}
zun_docker_cleanup_init_overrides: {}