cf81958f66
If an operator wants to deploy a single node (e.g. add an additional
compute), they may want to use the --limit feature of Ansible to avoid
waiting for every play across every node.
The problem with this is that --limit will gather facts for that node
only, causing template errors such as the infamous ('dict object' has no
attribute u'ansible_eth0'").
Ansible has catered to this problem to an extent with it's
"delegate_facts" mechanism. The only problem is that in the default 'all
nodes' case, we end up with a storm of SSHs as each node SSHs to every
other. I'm solving this with a separate task to only use this mechanism
when a subset of nodes has been specified (see ansible_play_batch).
Useful links on this subject:
- https://medium.com/@george.shuklin/perfecting-forced-fact-gathering-in-ansible-1611f9c8d0d5#.tr5zs3e7x
- http://docs.ansible.com/ansible/playbooks_delegation.html#delegated-facts
Change-Id: Ibb691eae15cacd9e5129ae9280fd296f5ba95940
Closes-Bug: 1642004
415 lines
8.7 KiB
YAML
415 lines
8.7 KiB
YAML
---
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# NOTE(awiddersheim): Gather facts for all hosts as a
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# first step since several plays below require them when
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# building their configurations. The below 'gather_facts'
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# set to 'false' is a bit confusing but this is to avoid
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# Ansible gathering facts twice.
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- name: Gather facts for all hosts
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hosts: all
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serial: '{{ serial|default("0") }}'
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gather_facts: false
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tasks:
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- setup:
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tags: always
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# NOTE(pbourke): This case covers deploying subsets of hosts using --limit. The
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# limit arg will cause the first play to gather facts only about that node,
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# meaning facts such as IP addresses for rabbitmq nodes etc. will be undefined
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# in the case of adding a single compute node.
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# We don't want to add the delegate parameters to the above play as it will
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# result in ((num_nodes-1)^2) number of SSHs when running for all nodes
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# which can be very inefficient.
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- name: Gather facts for all hosts (if using --limit)
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hosts: all
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serial: '{{ serial|default("0") }}'
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gather_facts: false
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tasks:
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- setup:
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delegate_facts: True
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delegate_to: "{{ item }}"
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with_items: "{{ groups['all'] }}"
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when:
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- (play_hosts | length) != (groups['all'] | length)
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- hosts:
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- all
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roles:
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- role: prechecks
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when: action == "precheck"
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- hosts:
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- ceph-mon
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- ceph-osd
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- ceph-rgw
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: ceph,
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tags: ceph,
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when: enable_ceph | bool }
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- hosts: collectd
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: collectd,
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tags: collectd,
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when: enable_collectd | bool }
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- hosts: elasticsearch
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: elasticsearch,
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tags: elasticsearch,
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when: enable_elasticsearch | bool }
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- hosts: influxdb
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: influxdb,
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tags: influxdb,
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when: enable_influxdb | bool }
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- hosts:
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- telegraf
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: telegraf,
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tags: telegraf,
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when: enable_telegraf | bool }
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- hosts:
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- haproxy
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roles:
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- { role: haproxy,
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tags: haproxy,
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when: enable_haproxy | bool }
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- hosts: kibana
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: kibana,
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tags: kibana,
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when: enable_kibana | bool }
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- hosts: memcached
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: memcached,
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tags: [memcache, memcached],
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when: enable_memcached | bool }
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- hosts: mariadb
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: mariadb,
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tags: mariadb,
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when: enable_mariadb | bool }
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- hosts:
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- iscsid
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- tgtd
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: iscsi,
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tags: iscsi,
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when: enable_iscsid | bool }
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- hosts:
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- multipathd
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: multipathd,
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tags: multipathd,
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when: enable_multipathd | bool }
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- hosts: rabbitmq
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roles:
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- { role: rabbitmq,
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tags: rabbitmq,
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when: enable_rabbitmq | bool }
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- hosts: etcd
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: etcd,
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tags: etcd,
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when: enable_etcd | bool }
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- hosts:
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- keystone
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: keystone,
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tags: keystone,
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when: enable_keystone | bool }
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- hosts:
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- swift-account-server
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- swift-container-server
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- swift-object-server
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- swift-proxy-server
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: swift,
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tags: swift,
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when: enable_swift | bool }
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- hosts:
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- ceph-mon
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- glance-api
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- glance-registry
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: glance,
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tags: glance,
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when: enable_glance | bool }
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- hosts:
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- ironic-api
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- ironic-conductor
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- ironic-inspector
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- ironic-pxe
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: ironic,
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tags: ironic,
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when: enable_ironic | bool }
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- hosts:
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- ceph-mon
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- compute
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- nova-api
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- nova-conductor
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- nova-consoleauth
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- nova-novncproxy
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- nova-scheduler
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: nova,
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tags: nova,
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when: enable_nova | bool }
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- hosts:
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- compute
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roles:
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- { role: kuryr,
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tags: kuryr,
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when: enable_kuryr | bool }
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# (gmmaha): Please do not change the order listed here. The current order is a
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# workaround to fix the bug https://bugs.launchpad.net/kolla/+bug/1546789
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- hosts:
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- neutron-server
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- neutron-dhcp-agent
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- neutron-l3-agent
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- neutron-lbaas-agent
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- neutron-metadata-agent
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- neutron-vpnaas-agent
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- compute
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- manila-share
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: neutron,
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tags: neutron,
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when: enable_neutron | bool }
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- hosts:
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- ceph-mon
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- cinder-api
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- cinder-backup
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- cinder-scheduler
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- cinder-volume
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: cinder,
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tags: cinder,
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when: enable_cinder | bool }
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- hosts:
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- heat-api
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- heat-api-cfn
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- heat-engine
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: heat,
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tags: heat,
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when: enable_heat | bool }
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- hosts:
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- horizon
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: horizon,
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tags: horizon,
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when: enable_horizon | bool }
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- hosts:
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- murano-api
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- murano-engine
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: murano,
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tags: murano,
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when: enable_murano | bool }
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- hosts:
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- magnum-api
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- magnum-conductor
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: magnum,
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tags: magnum,
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when: enable_magnum | bool }
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- hosts:
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- mistral-api
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- mistral-engine
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- mistral-executor
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: mistral,
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tags: mistral,
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when: enable_mistral | bool }
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- hosts:
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- sahara-api
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- sahara-engine
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: sahara,
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tags: sahara,
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when: enable_sahara | bool }
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- hosts:
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- mongodb
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: mongodb,
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tags: mongodb,
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when: enable_mongodb | bool }
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- hosts:
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- manila-api
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- manila-data
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- manila-share
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- manila-scheduler
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: manila,
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tags: manila,
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when: enable_manila | bool }
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- hosts:
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- gnocchi-api
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- gnocchi-metricd
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- gnocchi-statsd
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: gnocchi,
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tags: gnocchi,
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when: enable_gnocchi | bool }
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- hosts:
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- ceilometer
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- compute
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: ceilometer,
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tags: ceilometer,
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when: enable_ceilometer | bool }
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- hosts:
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- aodh
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: aodh,
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tags: aodh,
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when: enable_aodh | bool }
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- hosts:
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- barbican-api
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- barbican-keystone-listener
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- barbican-worker
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: barbican,
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tags: barbican,
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when: enable_barbican | bool }
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- hosts:
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- congress-api
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- congress-policy-engine
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- congress-datasource
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: congress,
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tags: congress,
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when: enable_congress | bool }
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- hosts:
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- tempest
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: tempest,
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tags: tempest,
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when: enable_tempest | bool }
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- hosts: rally
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: rally,
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tags: rally,
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when: enable_rally | bool }
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- hosts:
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- vmtp
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: vmtp,
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tags: vmtp,
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when: enable_vmtp | bool }
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- hosts:
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- watcher-api
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- watcher-engine
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- watcher-applier
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: watcher,
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tags: watcher,
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when: enable_watcher | bool }
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- hosts:
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- grafana
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: grafana,
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tags: grafana,
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when: enable_grafana | bool }
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- hosts:
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- cloudkitty-api
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- cloudkitty-processor
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: cloudkitty,
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tags: cloudkitty,
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when: enable_cloudkitty | bool }
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- hosts:
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- senlin-api
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- senlin-engine
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: senlin,
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tags: senlin,
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when: enable_senlin | bool }
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- hosts:
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- searchlight-api
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- searchlight-listener
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serial: '{{ serial|default("0") }}'
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roles:
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- { role: searchlight,
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tags: searchlight,
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when: enable_searchlight | bool }
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