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Minor changes to improve the wording in a few bulleted lists. Clean up some spacing and a couple links. Change-Id: I74831a07188106270362ceaf5bb2b9ecbb3f6af2
2.7 KiB
2.7 KiB
Home OpenStack-Ansible Installation Guide
Chapter 6. Infrastructure playbooks
Figure 6.1. Installation workflow
The main Ansible infrastructure playbook installs infrastructure services and performs the following operations:
- Installs Memcached
- Installs the repository server
- Installs Galera
- Installs RabbitMQ
- Installs Rsyslog
- Configures Rsyslog
Running the infrastructure playbook
Note
Before continuing, validate the configuration files using the guidance in Checking the integrity of your configuration files.
Change to the
/opt/openstack-ansible/playbooks
directory.Run the infrastructure setup playbook:
# 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
Change to the
/opt/openstack-ansible/playbooks
directory.Execute the following command to show the current cluster state:
# ansible galera_container -m shell -a "mysql \ -h localhost -e 'show status like \"%wsrep_cluster_%\";'"
Example output:
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 indicates the number of nodes in the cluster and thewsrep_cluster_status
field indicates primary.