학교 랩실에서 단일노드 Openstack 구축하기 - Nova(6)

나루·2022년 4월 21일
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단일노드 Openstack

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Nova는 컴퓨팅 인스턴스 (virtual machine)을 제공하는 Openstack의 서비스이다.

1. Controller 노드

1-1. DB 구축

# mysql
MariaDB [(none)]> CREATE DATABASE nova_api;
MariaDB [(none)]> CREATE DATABASE nova;
MariaDB [(none)]> CREATE DATABASE nova_cell0;

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'NOVA_DB_비밀번호';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
  IDENTIFIED BY 'NOVA_DB_비밀번호';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'NOVA_DB_비밀번호';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
  IDENTIFIED BY 'NOVA_DB_비밀번호';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'NOVA_DB_비밀번호';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
  IDENTIFIED BY 'NOVA_DB_비밀번호';

1-2. 서비스 자격 증명 생성

admin용 명령어를 사용하기 위해 keystone 구축할 때 만든 자격 증명을 실행한다.

# . admin-openrc

그리고 나서 도메인, 프로젝트, 사용자 및 역할 생성을 한다.

# openstack user create --domain default --password-prompt nova

User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 8a7dbf5279404537b1c7b86c033620fe |
| name                | nova                             |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# openstack role add --project service --user nova admin

# openstack service create --name nova \
  --description "OpenStack Compute" compute

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute                |
| enabled     | True                             |
| id          | 060d59eac51b4594815603d75a00aba2 |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+

그리고 엔드포인트를 생성해준다.

$ openstack endpoint create --region RegionOne \
  compute public http://노드_IP_주소:8774/v2.1

+--------------+-------------------------------------------+
| Field        | Value                                     |
+--------------+-------------------------------------------+
| enabled      | True                                      |
| id           | 3c1caa473bfe4390a11e7177894bcc7b          |
| interface    | public                                    |
| region       | RegionOne                                 |
| region_id    | RegionOne                                 |
| service_id   | 060d59eac51b4594815603d75a00aba2          |
| service_name | nova                                      |
| service_type | compute                                   |
| url          | http://노드_IP_주소:8774/v2.1               |
+--------------+-------------------------------------------+

$ openstack endpoint create --region RegionOne \
  compute internal http://노드_IP_주소:8774/v2.1

+--------------+-------------------------------------------+
| Field        | Value                                     |
+--------------+-------------------------------------------+
| enabled      | True                                      |
| id           | e3c918de680746a586eac1f2d9bc10ab          |
| interface    | internal                                  |
| region       | RegionOne                                 |
| region_id    | RegionOne                                 |
| service_id   | 060d59eac51b4594815603d75a00aba2          |
| service_name | nova                                      |
| service_type | compute                                   |
| url          | http://노드_IP_주소:8774/v2.1               |
+--------------+-------------------------------------------+

$ openstack endpoint create --region RegionOne \
  compute admin http://노드_IP_주소:8774/v2.1

+--------------+-------------------------------------------+
| Field        | Value                                     |
+--------------+-------------------------------------------+
| enabled      | True                                      |
| id           | 38f7af91666a47cfb97b4dc790b94424          |
| interface    | admin                                     |
| region       | RegionOne                                 |
| region_id    | RegionOne                                 |
| service_id   | 060d59eac51b4594815603d75a00aba2          |
| service_name | nova                                      |
| service_type | compute                                   |
| url          | http://노드_IP_주소:8774/v2.1               |
+--------------+-------------------------------------------+

1-3. Nova 설치와 구성

# apt install nova-api nova-conductor nova-novncproxy nova-scheduler
# vim /etc/nova/nova.conf
[api_database]
# ...
connection = mysql+pymysql://NOVA_DB_비밀번호@localhost/nova_api

[database]
# ...
connection = mysql+pymysql://NOVA_DB_비밀번호@localhost/nova

[DEFAULT]
# ...
transport_url = rabbit://openstack:RABBITMQ_비밀번호@localhost:5672/
my_ip = 노드_IP_주소

[api]
# ...
auth_strategy = keystone

[keystone_authtoken]
# ...
www_authenticate_uri = http://localhost:5000/
auth_url = http://localhost:5000/
memcached_servers = localhost:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = NOVA_비밀번호

[vnc]
enabled = true
# ...
server_listen = $my_ip
server_proxyclient_address = $my_ip

[glance]
# ...
api_servers = http://localhost:9292

[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp

[placement]
# ...
region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://localhost:5000/v3
username = placement
password = PLACEMENT_비밀번호

설정 파일 수정 후 DB 연동을 한다.

# su -s /bin/sh -c "nova-manage api_db sync" nova
# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
# su -s /bin/sh -c "nova-manage db sync" nova
# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+
|  Name |                 UUID                 |                   Transport URL                    |                     Database Connection                      | Disabled |
+-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 |                       none:/                       | mysql+pymysql://nova:****@controller/nova_cell0?charset=utf8 |  False   |
| cell1 | f690f4fd-2bc5-4f15-8145-db561a7b9d3d | rabbit://openstack:****@controller:5672/nova_cell1 | mysql+pymysql://nova:****@controller/nova_cell1?charset=utf8 |  False   |
+-------+--------------------------------------+----------------------------------------------------+--------------------------------------------------------------+----------+

1-4. 설치 완료

# service nova-api restart
# service nova-scheduler restart
# service nova-conductor restart
# service nova-novncproxy restart

2. Compute 노드

원래는 두 노드를 사용해서 따로 설정을 해줘야 하지만 단일 노드를 사용하기 때문에 같은 노드에 설정을 해주면 된다. 이미 설정이 되어있다면 확인하고 넘어가면 된다.

2-1. Nova 설치와 구성

# apt install nova-compute
# vim /etc/nova/nova.conf
[DEFAULT]
# ...
transport_url = rabbit://openstack:RABBITMQ_비밀번호@localhost
my_ip = 노드_IP_주소

[api]
# ...
auth_strategy = keystone

[keystone_authtoken]
# ...
www_authenticate_uri = http://localhost:5000/
auth_url = http://localhost:5000/
memcached_servers = localhost:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = NOVA_비밀번호

[vnc]
# ...
enabled = true
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://localhost:6080/vnc_auto.html

[glance]
# ...
api_servers = http://localhost:9292

[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp

[placement]
# ...
region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://localhost:5000/v3
username = placement
password = PLACEMENT_비밀번호

2-2. 설치 완료

# egrep -c '(vmx|svm)' /proc/cpuinfo
# vim /etc/nova/nova-compute.conf
[libvirt]
# ...
virt_type = qemu

# service nova-compute restart

2-3. 컴퓨트 노드 추가

# . admin-openrc

# openstack compute service list --service nova-compute
+----+-------+--------------+------+-------+---------+----------------------------+
| ID | Host  | Binary       | Zone | State | Status  | Updated At                 |
+----+-------+--------------+------+-------+---------+----------------------------+
| 1  | node1 | nova-compute | nova | up    | enabled | 2017-04-14T15:30:44.000000 |
+----+-------+--------------+------+-------+---------+----------------------------+
# su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova

Found 2 cell mappings.
Skipping cell0 since it does not contain hosts.
Getting compute nodes from cell 'cell1': ad5a5985-a719-4567-98d8-8d148aaae4bc
Found 1 computes in cell: ad5a5985-a719-4567-98d8-8d148aaae4bc
Checking host mapping for compute host 'compute': fe58ddc1-1d65-4f87-9456-bc040dc106b3
Creating host mapping for compute host 'compute': fe58ddc1-1d65-4f87-9456-bc040dc106b3

3. 작동 확인

# . admin-openrc
# openstack compute service list

+----+--------------------+------------+----------+---------+-------+----------------------------+
| Id | Binary             | Host       | Zone     | Status  | State | Updated At                 |
+----+--------------------+------------+----------+---------+-------+----------------------------+
|  1 | nova-scheduler     | controller | internal | enabled | up    | 2016-02-09T23:11:15.000000 |
|  2 | nova-conductor     | controller | internal | enabled | up    | 2016-02-09T23:11:16.000000 |
|  3 | nova-compute       | compute1   | nova     | enabled | up    | 2016-02-09T23:11:20.000000 |
+----+--------------------+------------+----------+---------+-------+----------------------------+

# openstack compute service list

+----+--------------------+------------+----------+---------+-------+----------------------------+
| Id | Binary             | Host       | Zone     | Status  | State | Updated At                 |
+----+--------------------+------------+----------+---------+-------+----------------------------+
|  1 | nova-scheduler     | controller | internal | enabled | up    | 2016-02-09T23:11:15.000000 |
|  2 | nova-conductor     | controller | internal | enabled | up    | 2016-02-09T23:11:16.000000 |
|  3 | nova-compute       | compute1   | nova     | enabled | up    | 2016-02-09T23:11:20.000000 |
+----+--------------------+------------+----------+---------+-------+----------------------------+

# openstack compute service list

+----+--------------------+------------+----------+---------+-------+----------------------------+
| Id | Binary             | Host       | Zone     | Status  | State | Updated At                 |
+----+--------------------+------------+----------+---------+-------+----------------------------+
|  1 | nova-scheduler     | controller | internal | enabled | up    | 2016-02-09T23:11:15.000000 |
|  2 | nova-conductor     | controller | internal | enabled | up    | 2016-02-09T23:11:16.000000 |
|  3 | nova-compute       | compute1   | nova     | enabled | up    | 2016-02-09T23:11:20.000000 |
+----+--------------------+------------+----------+---------+-------+----------------------------+

# nova-status upgrade check

+--------------------------------------------------------------------+
| Upgrade Check Results                                              |
+--------------------------------------------------------------------+
| Check: Cells v2                                                    |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Placement API                                               |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Cinder API                                                  |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Policy Scope-based Defaults                                 |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Policy File JSON to YAML Migration                          |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Older than N-1 computes                                     |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
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나루
이전 포스트

학교 랩실에서 단일노드 Openstack 구축하기 - Placement(5)

다음 포스트

학교 랩실에서 단일노드 Openstack 구축하기 - Neutron(7)

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