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Tambahkan host infrastruktur baru

Sementara tiga host infrastruktur direkomendasikan, jika host lebih lanjut diperlukan dalam suatu lingkungan, adalah mungkin untuk membuat node tambahan.

Peringatan

Pastikan Anda mencadangkan lingkungan OpenStack Anda saat ini sebelum menambahkan node baru apa pun. Lihat Backup and restore your cloud untuk informasi lebih lanjut.

1. Add the node to the infra_hosts stanza of the /etc/openstack_deploy/openstack_user_config.yml:

   infra_hosts:
   [...]
     infra<node-ID>:
       ip: 10.17.136.32
   

2. Change to playbook folder on the deployment host:

   # cd /opt/openstack-ansible
   

3. To prepare new hosts and deploy containers on them run setup-hosts.yml: playbook with the limit argument.

   # openstack-ansible openstack.osa.setup_hosts --limit localhost,infra<node-ID>,infra<node-ID>-host_containers
   

4. In case you're relying on /etc/hosts content, you should also update it for all hosts:

   # openstack-ansible openstack.osa.openstack_hosts_setup -e openstack_hosts_group=all --tags openstack_hosts-file
   

5. Next we need to expand Galera/RabbitMQ clusters, which is done during setup-infrastructure.yml. So we will run this playbook without limits:

   Peringatan

   Make sure that containers from new infra host does not appear in inventory as first one for groups galera_all, rabbitmq_all and repo_all. You can verify that with ad-hoc commands:

   # ansible -m debug -a "var=groups['galera_all'][0]" localhost
   # ansible -m debug -a "var=groups['rabbitmq_all'][0]" localhost
   # ansible -m debug -a "var=groups['repo_all'][0]" localhost
   

   # openstack-ansible openstack.osa.setup_infrastructure -e galera_force_bootstrap=true
   

6. Once infrastructure playboks are done, it's turn of OpenStack services to be deployed. Most of the services are fine to be ran with limits, but some, like keystone, are not. So we run keystone playbook separately from all others:

   # openstack-ansible openstack.osa.keystone
   # openstack-ansible openstack.osa.setup_openstack --limit '!keystone_all',localhost,infra<node-ID>,infra<node-ID>-host_containers
   

Uji infra node baru

Setelah membuat infra node baru, uji bahwa node berjalan dengan benar dengan meluncurkan instance baru. Pastikan bahwa node baru dapat menanggapi tes koneksi jaringan melalui perintah ping. Masuk ke sistem pemantauan Anda, dan verifikasi bahwa monitor mengembalikan sinyal hijau untuk node baru.