9694ae8c23
Right now we ensure that services are enabled/disabled while running playbooks only for core services. At the same time some services still do not have this mechanism, that might result in unexpected outages. So we ensure that all service playbooks will behave in the same way and disable backends in advance before playbook will do any modifications. With that, setting variable `haproxy_drain: true` will ensure that moving backend to the MAINT state will be graceful and all current connections will close normally unless a timeout is reached, which is 2 min by default. Closes-Bug: #2047017 Change-Id: I8554defec4df54d14be72ae9a1560907ff1aaddf
86 lines
2.8 KiB
YAML
86 lines
2.8 KiB
YAML
---
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# Copyright 2016 Internet Solutions (Pty) Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# (c) 2016 Donovan Francesco <donovan.francesco@is.co.za>
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# (c) 2016 Paul Stevens <paul.stevens@is.co.za>
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- name: Gather magnum facts
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hosts: magnum_all
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gather_facts: "{{ osa_gather_facts | default(True) }}"
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tasks:
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- name: Gather additional facts
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include_tasks: "common-tasks/gather-hardware-facts.yml"
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when: osa_gather_facts | default(True)
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tags:
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- always
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- name: Configure haproxy services
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import_playbook: openstack.osa.haproxy_service_config
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vars:
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service_group: magnum_all
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service_variable: "magnum_haproxy_services"
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when: groups[service_group] | length > 0
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tags:
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- haproxy-service-config
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- name: Install magnum server
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hosts: magnum_all
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user: root
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gather_facts: false
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serial: "{{ magnum_serial | default(['1','100%']) }}"
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environment: "{{ deployment_environment_variables | default({}) }}"
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vars_files:
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- "defaults/{{ install_method }}_install.yml"
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tags:
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- magnum
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pre_tasks:
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# In order to ensure that any container, software or
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# config file changes which causes a container/service
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# restart do not cause an unexpected outage, we drain
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# the load balancer back end for this container.
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- name: Disabling haproxy backends
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include_tasks: common-tasks/haproxy-endpoint-manage.yml
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vars:
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haproxy_backend: magnum-back
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haproxy_state: disabled
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when:
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- "'magnum_all' in group_names"
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- "groups['magnum_all'] | length > 1"
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- name: Including container-setup tasks
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include_tasks: "common-tasks/os-{{ container_tech | default('lxc') }}-container-setup.yml"
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when: not is_metal
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- name: Including unbound-clients tasks
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include_tasks: common-tasks/unbound-clients.yml
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when:
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- hostvars['localhost']['resolvconf_enabled'] | bool
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roles:
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- role: "os_magnum"
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post_tasks:
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# Now that container changes are done, we can set
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# the load balancer back end for this container
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# to available again.
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- name: Enabling haproxy backends
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include_tasks: common-tasks/haproxy-endpoint-manage.yml
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vars:
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haproxy_backend: magnum-back
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haproxy_state: enabled
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when:
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- "'magnum_all' in group_names"
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- "groups['magnum_all'] | length > 1"
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