openstack/openstack-ansible
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openstack-ansible/doc/source/install-guide/install-infrastructure.rst
Karin Levenstein 838d172f4d Consolidating infrastructure playbook doc 
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Home OpenStack-Ansible Installation Guide

Chapter 6. Infrastructure playbooks

Figure 6.1. Installation workflow

image

The main Ansible infrastructure playbook installs infrastructure services and performs the following operations:

  • Install Memcached
  • Install the repository server
  • Install Galera
  • Install RabbitMQ
  • Install Rsyslog
  • Configure Rsyslog

Running the infrastructure playbook

Before continuing, the configuration files may be validated using the guidance in "Checking the integrity of your configuration files".

  1. Change to the /opt/openstack-ansible/playbooks directory.

  2. Run the infrastructure setup playbook, which runs a series of sub-playbooks:

    # openstack-ansible setup-infrastructure.yml

    Confirm satisfactory completion with zero items unreachable or failed:

    PLAY RECAP ********************************************************************
...
deployment_host                : ok=27   changed=0    unreachable=0    failed=0

Verify the database cluster

  1. Change to the /opt/openstack-ansible/playbooks directory.

  2. Execute the following to show the current cluster state:

    # ansible galera_container -m shell -a "mysql \
-h localhost -e 'show status like \"%wsrep_cluster_%\";'"

    The results should look something like:

    node3_galera_container-3ea2cbd3 | success | rc=0 >>
Variable_name             Value
wsrep_cluster_conf_id     17
wsrep_cluster_size        3
wsrep_cluster_state_uuid  338b06b0-2948-11e4-9d06-bef42f6c52f1
wsrep_cluster_status      Primary

node2_galera_container-49a47d25 | success | rc=0 >>
Variable_name             Value
wsrep_cluster_conf_id     17
wsrep_cluster_size        3
wsrep_cluster_state_uuid  338b06b0-2948-11e4-9d06-bef42f6c52f1
wsrep_cluster_status      Primary

node4_galera_container-76275635 | success | rc=0 >>
Variable_name             Value
wsrep_cluster_conf_id     17
wsrep_cluster_size        3
wsrep_cluster_state_uuid  338b06b0-2948-11e4-9d06-bef42f6c52f1
wsrep_cluster_status      Primary

    The wsrep_cluster_size field should indicate the number of nodes in the cluster and the wsrep_cluster_status field should indicate primary.