Add overcloud scale nodes
Typical workflow: 1. Scale node 2. Validate the overcloud 3. Reduce scale by deleting orignal node of scale type 4. Re-inventory the overcloud 5. Validate the overcloud Note: Related to change[1] adding role to CAT [1] - https://review.gerrithub.io/#/c/274987/ Change-Id: I0da9cce50a7a491f5370521fad3c5409c2c917b1
This commit is contained in:
Harry Rybacki
parent
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commit
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README.md
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README.md
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Role Name
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=========
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A brief description of the role goes here.
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An Ansible role for scaling and deleting nodes from an overcloud.
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Requirements
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------------
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Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
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This role assumes it will be executed against a host on which a Liberty or Mitaka under/overcloud have already been deployed.
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**Note:** The ansible-role-tripleo-overcloud-validate role must be accessible.
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Role Variables
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--------------
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A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as well.
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**Note:** Make sure to include all environment file and options from your [initial Overcloud creation](https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/7/html/Director_Installation_and_Usage/sect-Scaling_the_Overcloud.html#sect-Adding_Compute_or_Ceph_Storage_Nodes). This includes the same scale parameters for non-Compute nodes.
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- artosn_scale_nodes: <true> -- boolean value that will scale nodes if true
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- artosn_delete_original_node: <false> -- boolean value that will delete the original node of type that was scaled
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- artosn_working_dir: <'/home/stack'> -- working directory for the role. Assumes stackrc file is present at this location
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Dependencies
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------------
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A list of other roles hosted on Galaxy should go here, plus any details in regards to parameters that may need to be set for other roles, or variables that are used from other roles.
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1. [ansible-role-tripleo-overcloud-validate](https://github.com/redhat-openstack/ansible-role-tripleo-overcloud-validate)
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Example Playbook
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----------------
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Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
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1. Sample playbook to call the role
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- hosts: servers
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- name: Scale overcloud nodes
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hosts: undercloud
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roles:
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- { role: username.rolename, x: 42 }
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- ansible-role-tripleo-overcloud-scale-nodes
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2. Sample config file to scale from one compute node to two compute nodes on the overcloud
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control_memory: 6144
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compute_memory: 6144
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undercloud_memory: 8192
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undercloud_vcpu: 2
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overcloud_nodes:
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- name: control_0
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flavor: control
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- name: compute_0
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flavor: compute
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- name: compute_1
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flavor: compute
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- name: compute_2
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flavor: compute
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tempest: false
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pingtest: true
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deploy_timeout: 60
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# General deployment info
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libvirt_args: "--libvirt-type qemu"
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flavor_args: >-
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--control-flavor {{flavor_map.control
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if flavor_map is defined and 'control' in flavor_map else 'oooq_control'}}
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--compute-flavor {{flavor_map.compute
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if flavor_map is defined and 'compute' in flavor_map else 'oooq_compute'}}
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--ceph-storage-flavor {{flavor_map.ceph
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if flavor_map is defined and 'ceph' in flavor_map else 'oooq_ceph'}}
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timeout_args: "--timeout {{ deploy_timeout }}"
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# Pulled this out so we can hand these configs to the openstack overcloud node delete command
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scale_extra_configs: "-e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/net-single-nic-with-vlans.yaml -e ~/network-environment.yaml"
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scale_extra_args: "--{{ node_to_scale }}-scale {{ final_scale_value }} --neutron-network-type vxlan --neutron-tunnel-types vxlan {{ scale_extra_configs }} --ntp-server pool.ntp.org"
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# Scale deployment info
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node_to_scale: compute # Type of node to scale
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initial_scale_value: 1 # Initial number of nodes to deploy
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final_scale_value: 2 # Number of additional nodes to add during the scale
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# Scale deployment arguments
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scale_args: >-
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{{ libvirt_args }}
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{{ flavor_args }}
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{{ timeout_args }}
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{{ scale_extra_args }}
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License
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-------
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BSD
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Apache
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Author Information
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------------------
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An optional section for the role authors to include contact information, or a website (HTML is not allowed).
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RDO-CI Team
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---
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control_memory: 6144
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compute_memory: 6144
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ceph_memory: 8192
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undercloud_memory: 8192
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undercloud_vcpu: 2
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overcloud_nodes:
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- name: control_0
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flavor: control
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- name: compute_0
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flavor: compute
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- name: ceph-storage_0
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flavor: ceph
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- name: ceph-storage_1
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flavor: ceph
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tempest: false
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pingtest: true
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deploy_timeout: 60
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# General deployment info
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libvirt_args: "--libvirt-type qemu"
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flavor_args: >-
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--control-flavor {{flavor_map.control
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if flavor_map is defined and 'control' in flavor_map else 'oooq_control'}}
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--compute-flavor {{flavor_map.compute
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if flavor_map is defined and 'compute' in flavor_map else 'oooq_compute'}}
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--ceph-storage-flavor {{flavor_map.ceph
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if flavor_map is defined and 'ceph' in flavor_map else 'oooq_ceph'}}
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timeout_args: "--timeout {{ deploy_timeout }}"
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extra_args: "--ceph-storage-scale 1 --neutron-network-type vxlan --neutron-tunnel-types vxlan -e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/net-single-nic-with-vlans.yaml -e ~/network-environment.yaml --ntp-server pool.ntp.org"
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# Pulled this out so we can hand these configs to the openstack overcloud node delete command
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scale_extra_configs: "-e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/net-single-nic-with-vlans.yaml -e ~/network-environment.yaml"
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scale_extra_args: "--{{ node_to_scale_deployment_arg }}-scale {{ final_scale_value }} --neutron-network-type vxlan --neutron-tunnel-types vxlan {{ scale_extra_configs }} --ntp-server pool.ntp.org"
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# Scale deployment info
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node_to_scale: ceph # Type of node to scale
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node_to_scale_deployment_arg: ceph-storage # argument needed to scale node
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initial_scale_value: 1 # Initial number of nodes to deploy
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final_scale_value: 2 # Number of additional nodes to add during the scale
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# Initial deployment arguments
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deploy_args: >-
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{{ libvirt_args }}
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{{ flavor_args }}
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{{ timeout_args }}
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{{ extra_args }}
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# Scale deployment arguments
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scale_args: >-
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{{ libvirt_args }}
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{{ flavor_args }}
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{{ timeout_args }}
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{{ scale_extra_args }}
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# Sample call
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# ./deploy.sh -v --playbook scale_nodes --config-file config/scale/scale_ceph.yml
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---
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control_memory: 6144
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compute_memory: 6144
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undercloud_memory: 8192
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undercloud_vcpu: 2
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overcloud_nodes:
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- name: control_0
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flavor: control
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- name: compute_0
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flavor: compute
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- name: compute_1
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flavor: compute
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- name: compute_2
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flavor: compute
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tempest: false
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pingtest: true
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deploy_timeout: 60
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# General deployment info
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libvirt_args: "--libvirt-type qemu"
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flavor_args: >-
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--control-flavor {{flavor_map.control
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if flavor_map is defined and 'control' in flavor_map else 'oooq_control'}}
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--compute-flavor {{flavor_map.compute
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if flavor_map is defined and 'compute' in flavor_map else 'oooq_compute'}}
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--ceph-storage-flavor {{flavor_map.ceph
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if flavor_map is defined and 'ceph' in flavor_map else 'oooq_ceph'}}
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timeout_args: "--timeout {{ deploy_timeout }}"
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extra_args: "--compute-scale 1 --neutron-network-type vxlan --neutron-tunnel-types vxlan -e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/net-single-nic-with-vlans.yaml -e ~/network-environment.yaml --ntp-server pool.ntp.org"
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# Pulled this out so we can hand these configs to the openstack overcloud node delete command
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scale_extra_configs: "-e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/net-single-nic-with-vlans.yaml -e ~/network-environment.yaml"
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scale_extra_args: "--{{ node_to_scale }}-scale {{ final_scale_value }} --neutron-network-type vxlan --neutron-tunnel-types vxlan {{ scale_extra_configs }} --ntp-server pool.ntp.org"
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# Scale deployment info
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node_to_scale: compute # Type of node to scale
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initial_scale_value: 1 # Initial number of nodes to deploy
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final_scale_value: 2 # Number of additional nodes to add during the scale
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# Initial deployment arguments
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deploy_args: >-
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{{ libvirt_args }}
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{{ flavor_args }}
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{{ timeout_args }}
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{{ extra_args }}
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# Scale deployment arguments
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scale_args: >-
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{{ libvirt_args }}
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{{ flavor_args }}
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{{ timeout_args }}
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{{ scale_extra_args }}
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# Sample call
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# ./deploy.sh -v --playbook scale_nodes --config-file config/scale/scale_compute.yml
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---
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# defaults file for ansible-role-tripleo-overcloud-scale-nodes
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artosn_scale_nodes: true
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artosn_delete_original_node: false
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artosn_working_dir: /home/stack
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---
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################
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# Deploy Nodes #
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################
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# This is the playbook used by the `quickstart.sh` script.
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# The [provision.yml](provision.yml.html) playbook is responsible for
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# creating an inventory entry for our `virthost` and for creating an
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# unprivileged user on that host for use by our virtual environment.
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- include: provision.yml
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tags:
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- provision
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# The `environment/setup` role performs any tasks that require `root`
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# access on the target host.
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- name: Install libvirt packages and configure networks
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hosts: virthost
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tags:
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- environment
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roles:
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- environment/setup
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# The `libvirt/setup` role creates the undercloud and overcloud
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# virtual machines.
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- name: Setup undercloud and overcloud vms
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hosts: virthost
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gather_facts: yes
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roles:
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- libvirt/teardown
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- libvirt/setup
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# Add the undercloud node to the generated
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# inventory.
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- name: Rebuild inventory
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hosts: localhost
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vars:
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inventory: undercloud
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roles:
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- tripleo-inventory
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# DEPLOY ALL THE THINGS! Depending on the currently selected set of
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# tags, this will deploy the undercloud, deploy the overcloud, and
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# perform some validation tests on the overcloud.
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- name: Install undercloud and deploy overcloud
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hosts: undercloud
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gather_facts: no
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roles:
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- tripleo/undercloud
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- tripleo/overcloud
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# Add the overcloud node to the generated
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# inventory.
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- name: Rebuild inventory
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hosts: undercloud
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gather_facts: yes
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vars:
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inventory: all
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roles:
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- tripleo-inventory
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###############
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# Scale Nodes #
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###############
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# Scale nodes w/o delete
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- name: Scale overcloud nodes
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hosts: undercloud
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roles:
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- { role: tripleo-overcloud-scale, artosn_scale_nodes: true, artosn_delete_original_node: false }
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# Delete the original node of type that was scaled - ensure overcloud validates after reducing scale
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- name: Delete original node of type scaled
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hosts: undercloud
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roles:
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- { role: tripleo-overcloud-scale, artosn_scale_nodes: false, artosn_delete_original_node: true }
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# NOTE(hrybacki: inventory regeneration and overcloud validation must be completed in a second playbook. The
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# deleted node is removed from the hosts file. However, it still exists in memory and will cause the
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# 'ansible-role-tripleo-inventory: regenerate ssh config' task to fail when attempting to acces non-existant host vars
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---
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# NOTE(hrybacki: inventory regeneration and overcloud validation must be completed in a second playbook. The
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# deleted node is removed from the hosts file. However, it still exists in memory and will cause the
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# 'ansible-role-tripleo-inventory: regenerate ssh config' task to fail when attempting to acces non-existant host vars
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# Re-inventory the overcloud
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- name: Inventory the overcloud
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hosts: undercloud
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gather_facts: no
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roles:
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- tripleo-inventory
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# Validate the overcloud
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- name: Validate the overcloud post-delete-node
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hosts: undercloud
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gather_facts: no
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roles:
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- tripleo-overcloud-validate
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16
setup.cfg
16
setup.cfg
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@ -20,13 +20,15 @@ setup-hooks =
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[files]
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data_files =
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usr/local/share/ansible-role-tripleo-overcloud-scale-nodes/defaults = ../ansible-role-tripleo-overcloud-scale-nodes/defaults/*
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usr/local/share/ansible-role-tripleo-overcloud-scale-nodes/handlers = ../ansible-role-tripleo-overcloud-scale-nodes/handlers/*
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usr/local/share/ansible-role-tripleo-overcloud-scale-nodes/meta = ../ansible-role-tripleo-overcloud-scale-nodes/meta/*
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usr/local/share/ansible-role-tripleo-overcloud-scale-nodes/tasks = ../ansible-role-tripleo-overcloud-scale-nodes/tasks/*
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usr/local/share/ansible-role-tripleo-overcloud-scale-nodes/templates = ../ansible-role-tripleo-overcloud-scale-nodes/templates/*
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usr/local/share/ansible-role-tripleo-overcloud-scale-nodes/tests = ../ansible-role-tripleo-overcloud-scale-nodes/tests/*
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usr/local/share/ansible-role-tripleo-overcloud-scale-nodes/vars = ../ansible-role-tripleo-overcloud-scale-nodes/vars/*
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usr/local/share/ansible/roles/tripleo-overcloud-scale/defaults = defaults/*
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usr/local/share/ansible/roles/tripleo-overcloud-scale/handlers = handlers/*
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usr/local/share/ansible/roles/tripleo-overcloud-scale/meta = meta/*
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usr/local/share/ansible/roles/tripleo-overcloud-scale/tasks = tasks/*
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usr/local/share/ansible/roles/tripleo-overcloud-scale/templates = templates/*
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usr/local/share/ansible/roles/tripleo-overcloud-scale/tests = tests/*
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usr/local/share/ansible/roles/tripleo-overcloud-scale/vars = vars/*
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playbooks = playbooks/*
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config/general_config/ = configs/*
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[wheel]
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universal = 1
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---
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# Delete the scaled node
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- name: Check the overcloud heat stack-list state
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shell: >
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source "{{ artosn_working_dir }}"/stackrc;
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heat stack-list
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register: heat_stack_list_result
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- name: Verify the overcloud is in a complete state
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fail: msg='Overcloud heat stack is not in a complete state'
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when: heat_stack_list_result.stdout.find('COMPLETE') == -1
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- name: Get id for the overcloud stack
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shell: >
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source "{{ artosn_working_dir }}"/stackrc;
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heat stack-list | grep overcloud | sed -e 's/|//g' | awk '{print $1}'
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register: overcloud_id
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- name: Register uuid of original "{{ node_to_scale}}" node
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shell: >
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source "{{ artosn_working_dir }}"/stackrc;
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nova list | grep -m 1 "{{ node_to_scale }}" | sed -e 's/|//g' | awk '{print $1}'
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register: node_id_to_delete
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- name: Register the Name of the original "{{ node_to_scale }}" node
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shell: >
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source "{{ artosn_working_dir }}"/stackrc;
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nova list | grep -m 1 "{{ node_to_scale }}" | sed -e 's/|//g' | awk '{print $2}'
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register: node_name_to_delete
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- name: Display node name to be deleted
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debug: msg={{ node_name_to_delete.stdout }}
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- name: Copy delete node script to undercloud
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template:
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src: delete-node.j2
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dest: "{{ artosn_working_dir }}/delete-node.sh"
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mode: 0755
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- name: Delete node by id
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shell: >
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cat "{{ artosn_working_dir }}"/delete-node.sh;
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"{{ artosn_working_dir }}"/delete-node.sh &> delete_node_scale_console.log;
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# Verify the delete was successful
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- name: Poll heat stack-list to determine when node delete is complete
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shell: >
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source "{{ artosn_working_dir }}"/stackrc;
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heat stack-list
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register: heat_stack_list_result
|
||||
until: heat_stack_list_result.stdout.find("COMPLETE") != -1
|
||||
retries: 20
|
||||
delay: 90
|
||||
|
||||
- name: Determine the post scale node count
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}/stackrc";
|
||||
nova list | grep "{{ node_to_scale }}" | cut -f2- -d':' | wc -l
|
||||
register: post_scale_node_count
|
||||
|
||||
- name: Remove deleted hosts from the host file
|
||||
shell: >
|
||||
sed -i '/{{ node_name_to_delete.stdout }}/d' {{ local_working_dir }}/hosts
|
||||
delegate_to: localhost
|
||||
|
||||
- name: Check that post delete node count is correct
|
||||
fail: msg="Overcloud nova list does not show expected number of {{ node_to_scale }} services"
|
||||
when: post_scale_node_count.stdout != "{{ initial_scale_value }}"
|
||||
|
|
@ -1,2 +1,18 @@
|
|||
---
|
||||
# tasks file for ansible-role-tripleo-overcloud-scale-nodes
|
||||
|
||||
- include: pre-scale.yml
|
||||
when: artosn_scale_nodes
|
||||
tags:
|
||||
- pre-overcloud-scale-nodes
|
||||
|
||||
- include: scale-nodes.yml
|
||||
when: artosn_scale_nodes
|
||||
tags:
|
||||
- overcloud-scale-nodes
|
||||
|
||||
# Optionally delete the original node of type scaled
|
||||
- include: delete-original-node.yml
|
||||
when: artosn_delete_original_node
|
||||
tags:
|
||||
- post-overcloud-scale-nodes-delete
|
||||
|
|
|
|||
|
|
@ -0,0 +1,36 @@
|
|||
---
|
||||
|
||||
# Prep for scale
|
||||
- name: Determine initial number of node(s) that will be scaled
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}/stackrc";
|
||||
nova list | grep "{{ node_to_scale }}" | cut -f2- -d':' | wc -l
|
||||
register: initial_node_count
|
||||
|
||||
- name: Register uuid of original "{{ node_to_scale}}" node
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}"/stackrc;
|
||||
nova list | grep -m 1 "{{ node_to_scale }}" | sed -e 's/|//g' | awk '{print $1}'
|
||||
register: node_id_to_delete
|
||||
|
||||
- name: Register the Name of the original "{{ node_to_scale }}" node
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}"/stackrc;
|
||||
nova list | grep -m 1 "{{ node_to_scale }}" | sed -e 's/|//g' | awk '{print $2}'
|
||||
register: node_name_to_delete
|
||||
|
||||
- name: Register pre-scale nova list
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}/stackrc";
|
||||
nova list
|
||||
register: pre_scale_nova_list
|
||||
|
||||
- name: Display pre-scale nova list
|
||||
debug: msg={{ pre_scale_nova_list.stdout_lines }}
|
||||
when: pre_scale_nova_list is defined
|
||||
|
||||
- name: Copy scale deployment template to undercloud
|
||||
template:
|
||||
src: scale-deployment.j2
|
||||
dest: "{{ artosn_working_dir }}/scale-deployment.sh"
|
||||
mode: 0755
|
||||
|
|
@ -0,0 +1,37 @@
|
|||
---
|
||||
|
||||
# Do the scale
|
||||
- name: Call scale deployment script
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}/stackrc";
|
||||
"{{ artosn_working_dir }}"/scale-deployment.sh &> overcloud_deployment_scale_console.log;
|
||||
|
||||
- name: Poll heat stack-list to determine when node scale is complete
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}"/stackrc;
|
||||
heat stack-list
|
||||
register: heat_stack_list_result
|
||||
until: heat_stack_list_result.stdout.find("COMPLETE") != -1
|
||||
retries: 20
|
||||
delay: 90
|
||||
|
||||
- name: Register post-scale nova list
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}/stackrc";
|
||||
nova list
|
||||
register: post_scale_nova_list
|
||||
|
||||
- name: Display post-scale nova list
|
||||
debug: msg={{ post_scale_nova_list.stdout_lines }}
|
||||
when: post_scale_nova_list is defined
|
||||
|
||||
# Verify the scale
|
||||
- name: Determine the post scale node count
|
||||
shell: >
|
||||
source "{{ artosn_working_dir }}/stackrc";
|
||||
nova list | grep "{{ node_to_scale }}" | cut -f2- -d':' | wc -l
|
||||
register: post_scale_node_count
|
||||
|
||||
- name: Check that post scale node count is correct
|
||||
fail: msg="Overcloud nova list does not show expected number of {{ node_to_scale }} services"
|
||||
when: post_scale_node_count.stdout != "{{ final_scale_value }}"
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
#! /bin/bash
|
||||
|
||||
source ./stackrc
|
||||
openstack overcloud node delete --debug --stack {{ overcloud_id.stdout }} --templates {{ scale_extra_configs }} {{ node_id_to_delete.stdout }}
|
||||
|
|
@ -0,0 +1,39 @@
|
|||
---
|
||||
# tasks file for ansible-role-tripleo-overcloud-scale-nodes
|
||||
|
||||
#!/bin/bash
|
||||
|
||||
# Simple overcloud scale script
|
||||
|
||||
set -eux
|
||||
|
||||
# Source in undercloud credentials.
|
||||
source {{ artosn_working_dir }}/stackrc
|
||||
|
||||
# Wait until there are hypervisors available.
|
||||
while true; do
|
||||
count=$(openstack hypervisor stats show -c count -f value)
|
||||
if [ $count -gt 0 ]; then
|
||||
break
|
||||
fi
|
||||
done
|
||||
|
||||
deploy_status=0
|
||||
|
||||
# Scale the overcloud!
|
||||
openstack overcloud deploy --templates {{ scale_args }} \
|
||||
${DEPLOY_ENV_YAML:+-e $DEPLOY_ENV_YAML} || deploy_status=1
|
||||
|
||||
# We don't always get a useful error code from the openstack deploy command,
|
||||
# so check `heat stack-list` for a CREATE_FAILED status.
|
||||
if heat stack-list | grep -q 'CREATE_FAILED'; then
|
||||
deploy_status=1
|
||||
|
||||
for failed in $(heat resource-list \
|
||||
--nested-depth 5 overcloud | grep FAILED |
|
||||
grep 'StructuredDeployment ' | cut -d '|' -f3)
|
||||
do heat deployment-show $failed > failed_deployment_$failed.log
|
||||
done
|
||||
fi
|
||||
|
||||
exit $deploy_status
|
||||
Loading…
Reference in New Issue