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Merge pull request #1182 from rackerlabs/PUC-1095-20250820
feat: Adds post-deploy OpenStack Octavia playbook
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‎ansible/playbooks/openstack_network.yaml‎

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# License for the specific language governing permissions and limitations
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# under the License.
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- name: Openstack Network
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- name: OpenStack Network
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hosts: neutron
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connection: local
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‎ansible/playbooks/openstack_octavia.yaml‎

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---
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# Copyright (c) 2025 Rackspace Technology, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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- name: OpenStack Octavia Post Deployment
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hosts: neutron
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connection: local
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pre_tasks:
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- name: Fail if ENV variables are not set
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ansible.builtin.fail:
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msg: "Environment variable {{ item }} is not set. Exiting playbook."
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when: lookup('env', item) == ''
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loop:
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- OS_CLOUD
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roles:
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- role: openstack_octavia

‎ansible/roles/openstack_octavia/defaults/main.yml‎

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---
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openstack_octavia_load_balancer_network_name: "lb-mgmt-net"
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openstack_octavia_load_balancer_subnet_name: "lb-mgmt-subnet"
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openstack_octavia_load_balancer_subnet: "172.31.0.0/24"
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openstack_octavia_load_balancer_subnet_start: "172.31.0.2"
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openstack_octavia_load_balancer_subnet_end: "172.31.0.200"
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openstack_octavia_provider_network_type: "ovn"

‎ansible/roles/openstack_octavia/tasks/main.yml‎

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---
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- name: Get network info
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openstack.cloud.networks_info:
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name: "{{ openstack_octavia_load_balancer_network_name }}"
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register: existing_networks
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run_once: true
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- name: Create network if not exists
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openstack.cloud.network:
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name: "{{ openstack_octavia_load_balancer_network_name }}"
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provider_network_type: "{{ openstack_octavia_provider_network_type }}"
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state: present
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when: existing_networks | length == 0
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run_once: true
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- name: Get network info again with the ID this time
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openstack.cloud.networks_info:
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name: "{{ openstack_octavia_load_balancer_network_name }}"
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register: existing_networks_again
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run_once: true
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- name: Create a new subnet in neutron
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openstack.cloud.subnet:
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network_name: "{{ openstack_octavia_load_balancer_network_name }}"
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name: "{{ openstack_octavia_load_balancer_subnet_name }}"
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cidr: "{{ openstack_octavia_load_balancer_subnet }}"
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allocation_pool_start: "{{ openstack_octavia_load_balancer_subnet_start }}"
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allocation_pool_end: "{{ openstack_octavia_load_balancer_subnet_end }}"
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state: present
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run_once: true
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- name: Create a security group
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openstack.cloud.security_group:
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name: lb-mgmt-sec-grp
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state: present
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description: security group for octavia load balancers
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run_once: true
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- name: Create a security group rule
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openstack.cloud.security_group_rule:
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security_group: lb-mgmt-sec-grp
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protocol: icmp
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remote_ip_prefix: 0.0.0.0/0
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run_once: true
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- name: Create a security group rule
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openstack.cloud.security_group_rule:
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security_group: lb-mgmt-sec-grp
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protocol: tcp
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port_range_min: 22
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port_range_max: 22
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remote_ip_prefix: 0.0.0.0/0
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run_once: true
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- name: Create a security group rule
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openstack.cloud.security_group_rule:
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security_group: lb-mgmt-sec-grp
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protocol: tcp
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port_range_min: 9443
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port_range_max: 9443
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remote_ip_prefix: 0.0.0.0/0
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run_once: true
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- name: Create a security group for octavia health manager
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openstack.cloud.security_group:
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name: lb-health-mgr-sec-grp
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state: present
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description: security group for octavia health manager
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run_once: true
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register: security_group
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- name: Create health manager group security rules
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openstack.cloud.security_group_rule:
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security_group: lb-health-mgr-sec-grp
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protocol: udp
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port_range_min: 5555
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port_range_max: 5555
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remote_ip_prefix: 0.0.0.0/0
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run_once: true
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- name: Create ports debug
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ansible.builtin.debug:
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msg: "item {{ item }}"
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with_items: "{{ groups['all']
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| map('extract', hostvars)
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| selectattr('ovs_enabled', 'defined')
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| selectattr('ovs_enabled', 'equalto', true)
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| map(attribute='inventory_hostname')
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| list }}"
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- name: Build octavia_port_names (override or hostname)
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ansible.builtin.set_fact:
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octavia_port_names: "{{ octavia_port_names | default([]) + [ (hostvars[item].octavia_host_override | default(item)) ] }}"
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loop: "{{ groups['all'] }}"
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when:
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- hostvars[item].ovs_enabled is defined
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- hostvars[item].ovs_enabled | bool
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run_once: true
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delegate_to: localhost
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loop_control:
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label: "{{ item }}"
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- name: Create ports debug
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ansible.builtin.debug:
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msg: "item {{ item }}"
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with_items: "{{ octavia_port_names }}"
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run_once: true
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# ansible's openstack.cloud.port module doesn't permit you to specify
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# the binding:host_id, so we have to do it the hard way using
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# openstack.cloud.resource.
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- name: Create Octavia health manager port (set binding host_id)
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openstack.cloud.resource:
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state: present
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service: network
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type: port
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attributes:
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name: "octavia-health-manager-port-{{ item }}"
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network_id: "{{ existing_networks_again.networks[0].id }}"
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device_owner: "Octavia:health-mgr"
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binding_host_id: "{{ item }}"
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security_groups:
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- "{{ security_group.security_group.id }}"
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register: create_octavia_port
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with_items: "{{ octavia_port_names }}"
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run_once: true

‎components/octavia/kustomization.yaml‎

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resources:
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- octavia-rabbitmq-queue.yaml
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- octavia-mariadb-db.yaml
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- octavia-post-deployment-job.yaml

‎components/octavia/octavia-post-deployment-job.yaml‎

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---
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apiVersion: batch/v1
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kind: Job
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metadata:
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name: octavia-post-deployment-job
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generateName: octavia-post-deployment-job-
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annotations:
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argocd.argoproj.io/hook: PostSync
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argocd.argoproj.io/hook-delete-policy: BeforeHookCreation
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spec:
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template:
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spec:
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containers:
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- name: octavia-post-deploy
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image: ghcr.io/rackerlabs/understack/ansible:latest
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imagePullPolicy: Always
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command: ["ansible-runner", "run", "/runner", "-vvv", "--playbook", "openstack_octavia.yaml"]
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env:
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- name: OS_CLOUD
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value: understack
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volumeMounts:
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- name: ansible-inventory
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mountPath: /runner/inventory/hosts.yaml
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subPath: hosts.yaml
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- name: ansible-kubernetes-inventory
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mountPath: /runner/inventory/inventory.yaml
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subPath: inventory.yaml
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- name: ansible-group-vars
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mountPath: /runner/inventory/group_vars/
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- name: openstack-svc-acct
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mountPath: /etc/openstack
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readOnly: true
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volumes:
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- name: runner-data
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emptyDir: {}
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- name: ansible-inventory
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configMap:
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name: ansible-inventory
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- name: ansible-kubernetes-inventory
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configMap:
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name: ansible-kubernetes-inventory
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- name: ansible-group-vars
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configMap:
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name: ansible-group-vars
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- name: openstack-svc-acct
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secret:
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secretName: openstack-svc-acct
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restartPolicy: OnFailure

‎docs/deploy-guide/load-balancers.md‎

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# Load Balancer Configuration
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If you decide to use Octavia Load Balancers there is a post-install ansible
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playbook which sets up networks, security groups, and ports for octavia's
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use.
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The ansible playbook is `understack/ansible/playbooks/openstack_octavia.yaml`
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and it gets triggered after ArgoCD successfully syncs the octavia component
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from an ArgoCD post sync hook:
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``` yaml
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metadata:
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annotations:
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argocd.argoproj.io/hook: PostSync
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argocd.argoproj.io/hook-delete-policy: BeforeHookCreation
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```
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The post-sync job is `components/octavia/octavia-post-deployment-job.yaml`.

‎docs/deploy-guide/testing-verification.md‎

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# Testing and Verification
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After deploying a new Understack, we have a few tools available to help us test our new deployment
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and ensure everything is working.
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## OpenStack Tempest
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We'll use [OpenStack Tempest](https://docs.openstack.org/tempest/latest/index.html)
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to quickly perform API tests against Understack.
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Here's a small example using tempest to run keypair tests against an Understack instance:
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``` text
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$ tempest run --concurrency 1 --serial --include-list include-keypair.txt
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{0} tempest.api.compute.keypairs.test_keypairs.KeyPairsV2TestJSON.test_get_keypair_detail [1.563604s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs.KeyPairsV2TestJSON.test_keypair_create_delete [0.884011s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs.KeyPairsV2TestJSON.test_keypair_create_with_pub_key [0.893123s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs.KeyPairsV2TestJSON.test_keypairs_create_list_delete [3.178549s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_create_keypair_invalid_name [0.589208s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_create_keypair_when_public_key_bits_exceeds_maximum [0.432699s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_create_keypair_with_duplicate_name [1.471715s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_create_keypair_with_empty_name_string [0.540209s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_create_keypair_with_empty_public_key [0.440568s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_create_keypair_with_long_keynames [0.435756s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_keypair_create_with_invalid_pub_key [0.479691s] ... ok
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{0} tempest.api.compute.keypairs.test_keypairs_negative.KeyPairsNegativeTestJSON.test_keypair_delete_nonexistent_key [0.509478s] ... ok
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======
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Totals
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======
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Ran: 12 tests in 12.3828 sec.
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- Passed: 12
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- Skipped: 0
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- Expected Fail: 0
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- Unexpected Success: 0
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- Failed: 0
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Sum of execute time for each test: 11.4186 sec.
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==============
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Worker Balance
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==============
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- Worker 0 (12 tests) => 0:00:12.382768
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```
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## OpenStack Rally
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We'll also use [OpenStack Rally](https://docs.openstack.org/rally/latest/) to run integration and scenario tests.
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See the [understack-tests](https://github.com/rackerlabs/understack/tree/main/python/understack-tests) in the understack repo
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for docs on running our rally scenarios.

‎docs/deploy-guide/troubleshooting.md‎

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# Deployment Troubleshooting
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We have documentation for individual components in the [Operator Guide](../operator-guide/index.md).
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## ArgoCD Stuck Syncing
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We have seen ArgoCD can sometimes become "stuck" while processing deployments. Sometimes
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this can be due to the app component running a kubernetes job which gets stuck indefinitely.
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For example, some openstack-helm components have init jobs which depends on other steps being
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completed or may have a misconfiguration, where the init will loop forever. In argo you can
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see what jobs are stuck, then check the kubernetes job pod logs for further details. Note that
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a lot of OpenStack pods may have multiple containers, so interesting logs may not be in the
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default container output.
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In argo, we've also seen it can be helpful to terminate an old sync and issue a new sync.

‎mkdocs.yml‎

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- deploy-guide/config-argo-workflows.md
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- Starting the Deployment:
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- deploy-guide/management-cluster.md
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- Post Deployment:
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- deploy-guide/load-balancers.md
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- deploy-guide/testing-verification.md
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- deploy-guide/troubleshooting.md
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- Further Actions:
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- deploy-guide/extra-sites.md
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- deploy-guide/add-remove-app.md

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