Add a OpenShift on OpenStack HW validation
This validation checks if the requirements for an OpenShift installation on top of an OpenStack overcloud are met. Change-Id: I3af047aca3ccc5e173dc0de48ba07f28536933c5
This commit is contained in:
Florian Fuchs
parent
1069c380c3
commit
06dbce9fa6
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---
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features:
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- |
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Adds a hardware requirements validation that checks flavors and compute
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resources for minimum values needed for either a test or production
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environment and looks for the existence of the required images.
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173
validations/openshift-hw-requirements.yaml
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173
validations/openshift-hw-requirements.yaml
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---
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- hosts: undercloud
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vars:
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metadata:
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name: Check resources for an OpenShift on OpenStack deployment
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description: |
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Check if there are enough resources for an OpenShift deployment on top
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of Openstack
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deployment:
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- Is there a flavor that meets the minimum requirements for a test
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environment?
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(4GB RAM, 40GB disk)
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- Is there a flavor that meets the minimum requirements for a
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production environment?
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(16GB RAM, 40GB disk, 4 VCPUs)
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- Are images named centos or rhel available?
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- Are there sufficient compute resources available for a default setup?
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(1 Master node, 1 Infra node, 2 App nodes)
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groups:
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- openshift-on-openstack
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min_total_ram_testing: 16384 # 4 per node
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min_total_vcpus_testing: 4 # 1 per node
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min_total_disk_testing: 93 # Master: 40, others: 17 per node
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min_total_ram_prod: 40960 # Master: 16, others: 8 per node
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min_total_vcpus_prod: 7 # Master: 4, others 1 per node
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min_total_disk_prod: 93 # Master: 42, others: 17 per node
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min_node_ram_testing: 4096 # Minimum ram per node for testing
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min_node_disk_testing: 40 # Minimum disk per node for testing
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min_node_ram_prod: 16384 # Minimum ram per node for production
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min_node_disk_prod: 42 # Minimum disk per node for production
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resource_reqs_testing: False
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resource_reqs_prod: False
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tasks:
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# Get auth token and service catalog from Keystone and extract service urls.
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- name: Get token and catalog from Keystone
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uri:
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url: "{{ overcloud_keystone_url
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| urlsplit('scheme') }}://{{ overcloud_keystone_url
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| urlsplit('netloc')}}/v3/auth/tokens"
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method: POST
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body_format: json
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body:
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auth:
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scope:
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project:
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name: admin
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domain:
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id: default
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identity:
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methods:
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- password
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password:
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user:
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name: admin
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domain:
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id: default
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password: "{{ overcloud_admin_password }}"
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return_content: yes
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status_code: 201
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register: keystone_result
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when: overcloud_keystone_url|default('')
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- name: Set auth token
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set_fact: auth_token="{{ keystone_result.x_subject_token }}"
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- name: Get Nova URL from catalog
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set_fact: nova_url="{{ keystone_result.json.token
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| json_query("catalog[?name=='nova'].endpoints")
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| first
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| selectattr('interface', 'equalto', 'public')
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| map(attribute='url') | first }}"
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- name: Get Glance URL from catalog
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set_fact: glance_url="{{ keystone_result.json.token
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| json_query("catalog[?name=='glance'].endpoints")
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| first
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| selectattr('interface', 'equalto', 'public')
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| map(attribute='url') | first }}"
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- name: Get flavors with required values for testing
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uri:
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url: "{{ nova_url }}/flavors/detail?minRam={{ min_node_ram_testing }}&minDisk={{ min_node_disk_testing }}"
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method: GET
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headers:
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X-Auth-Token: "{{ auth_token }}"
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Accept: application/vnd.openstack.compute.v2.1+json
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return_content: yes
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follow_redirects: all
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register: flavors_result_testing
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- name: Get flavors with required values for production
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uri:
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url: "{{ nova_url }}/flavors/detail?minRam={{ min_node_ram_prod }}&minDisk={{ min_node_disk_prod }}"
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method: GET
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headers:
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X-Auth-Token: "{{ auth_token }}"
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Accept: application/vnd.openstack.compute.v2.1+json
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return_content: yes
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follow_redirects: all
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register: flavors_result_prod
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- name: Set matching_flavors_testing variable
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set_fact:
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matching_flavors_testing: "{{ flavors_result_testing.json.flavors
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| list | length > 0 }}"
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- name: Set matching_flavors_prod variable
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set_fact:
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matching_flavors_prod: "{{ flavors_result_prod.json.flavors
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| selectattr('vcpus', 'ge', 4)
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| list
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| length > 0 }}"
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# Get hypervisor stats from nova and check if there are sufficient
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# available resources.
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- name: Get hypervisor details from nova
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uri:
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url: "{{ nova_url }}/os-hypervisors/statistics"
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method: GET
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headers:
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X-Auth-Token: "{{ auth_token }}"
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Accept: application/vnd.openstack.compute.v2.1+json
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return_content: yes
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follow_redirects: all
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register: hypervisors_result
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- name: Set hypervisor stats
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set_fact: hv_stats="{{ hypervisors_result.json.hypervisor_statistics }}"
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- name: Set flag whether min resources for testing are available
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set_fact: resource_reqs_testing=True
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when: hv_stats.disk_available_least >= min_total_disk_testing
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and hv_stats.free_ram_mb >= min_total_ram_testing
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and hv_stats.vcpus - hv_stats.vcpus_used >= min_total_vcpus_testing
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- name: Set flag whether min resources for production are available
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set_fact: resource_reqs_prod=True
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when: hv_stats.disk_available_least >= min_total_disk_prod
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and hv_stats.free_ram_mb >= min_total_ram_prod
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and hv_stats.vcpus - hv_stats.vcpus_used >= min_total_vcpus_prod
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# Get overcloud images from Glance and check if there is one named either
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# rhel or centos.
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- name: Get images from glance
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uri:
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url: "{{ glance_url }}/v2/images"
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method: GET
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headers:
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X-Auth-Token: "{{ auth_token }}"
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return_content: yes
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follow_redirects: all
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register: images
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- name: Find matching images
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set_fact:
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matching_image: "{{ images.json.images
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| map(attribute='name')
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| map('lower')
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| select('search', '(centos|rhel)')
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| list | length | int > 0 }}"
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- name: Create warning message
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set_fact:
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warning_msg: |
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{{ lookup('template', './templates/openshift-hw-requirements-warnings.j2') }}
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- name: Fail if minimum requirements aren't met
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fail: msg="{{ warning_msg }}"
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when: not matching_flavors_testing
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or not matching_image
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or not resource_reqs_testing
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- name: Warn if production requirements aren't met
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warn: msg="{{ warning_msg }}"
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when: not matching_flavors_prod
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or not matching_image
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or not resource_reqs_prod
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17
validations/templates/openshift-hw-requirements-warnings.j2
Normal file
17
validations/templates/openshift-hw-requirements-warnings.j2
Normal file
@ -0,0 +1,17 @@
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While checking the hardware requirements for an OpenShift deployment, the following problems were detected:
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{% if not matching_image %}
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- No image with name "centos" or "rhel" could be found.
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{% endif %}
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{% if not matching_flavors_testing %}
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- There is no flavor available that meets the hardware requirements for a test setup.
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{% endif %}
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{% if not matching_flavors_prod %}
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- There is no flavor available that meets the hardware requirements for a production setup.
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{% endif %}
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{% if not resource_reqs_testing %}
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- The resources necessary for a default test setup are not available on the hypervisors.
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{% endif %}
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{% if not resource_reqs_prod %}
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- The resources necessary for a default production setup are not available on the hypervisors.
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{% endif %}
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