OpenStack Upgrade 測試

這篇超級古文，沒什麼參考價值，現在都使用 kolla 佈署跟升級 OpenStack，只是發現以前有記錄過程，所以搬上來

本文紀錄時間為2018/01/22，看看就好，不要太認真，之前被公司要求如何升版，所以才做這測試

測試從Mitaka手動升級到Newton

環境

OS: Ubuntu 14.04

OpenStack version: Mitaka

Node:

1台 controller
1台 compute
1台 storage

All node

所有節點更新OS至ubuntu 16.04，安裝都選第一個選項跟Y
備份所有節點的config檔
備份資料庫(controller)

# mysqldump -u root -p –opt –add-drop-database –all-databases > mitaka-db-backup.sql

Enable the OpenStack repository

# add-apt-repository cloud-archive:newton

Upgrade the packages on your host
```
# apt update
```

Upgrade the OpenStack client

# apt install --only-upgrade python-openstackclient

Controller node

keystone

Stop Keystone service
```
# service keystone stop
```

Upgrade Keystone service

# apt install --only-upgrade keystone -y

按照官網改config

Restart the Apache service

# systemctl daemon-reload 
# service keystone start

Create keystone database

$ mysql -u root -p

# DROP databases keystone;
# CREATE databases keystone;

Populate the Identity service database:

# su -s /bin/sh -c "keystone-manage db_sync" keystone

Import keystone db

# mysql -u root -p keystone < mitaka-db-backup.sql

Create the service project:

# openstack project create --domain default --description "Service Project" service

Initialize Fernet key repositories

# keystone-manage credential_setup --keystone-user keystone --keystone-group keystone

Mysql restart
```
# service mysql restart
```

Backup wsgi-keystone.conf

# mv /etc/apache2/sites-available/wsgi-keystone.conf /etc/apache2/sites-available/wsgi-keystone.bak

Remove site-enable
```
# rm /etc/apache2/sites-enabled
```
Apache2 restart
```
# service apache2 reload 
```

glance

Stop all glance service

# for i in /etc/init.d/glance-*;do $i stop; done

Upgrade glance service
```
# apt install --only-upgrade glance -y
```
按照官網改config

Create glance database

# mysql -u root -p

# DROP databases glance ;
# CREATE databases glance ;

Populate the Image service database:

# su -s /bin/sh -c "glance-manage db_sync" glance

Import glance database

# mysql -u root -p glance  < mitaka-db-backup.sql

Start glance all service

# for i in /etc/init.d/glance-*;do $i start; done

Confirm upload of the image and validate attributes:
```
# glance image-list 
```

有可能出現錯誤:(錯誤:500 Internal Server Error: The server has either erred or is incapable of performing the requested operation.) CantStartEngineError: No sql_connection parameter is established 或(An unexpected error prevented the server from fulfilling your request. (HTTP 500)

nova

Stop nova all service

# for i in /etc/init.d/nova-*;do $i stop; done

Upgrade nova all service

# apt install --only-upgrade nova-api nova-conductor nova-consoleauth nova-novncproxy nova-scheduler -y

按照官網改config

Create nova database

# mysql -u root -p
# DROP DATABASE nova_api;
# DROP DATABASE nova;
# CREATE DATABASE nova_api;
# CREATE DATABASE nova;

Populate the Compute databases:

# su -s /bin/sh -c "nova-manage api_db sync" nova
# su -s /bin/sh -c "nova-manage db sync" nova

Import nova database

# mysql -u root -p nova  < mitaka-db-backup.sql
# mysql -u root -p nova_api  < mitaka-db-backup.sql

Start nova all service

# for i in /etc/init.d/nova-*;do $i start; done

neutron

Stop nova all service

# for i in /etc/init.d/neutron-* ;do $i stop; done

Upgrade neutron all service

# apt install --only-upgrade neutron-server neutron-plugin-ml2 \
  neutron-linuxbridge-agent neutron-l3-agent neutron-dhcp-agent \
  neutron-metadata-agent -y

按照官網改config

Create neutron database

# mysql -u root -p
# DROP DATABASE neutron;
# CREATE DATABASE neutron;

Populate the Neutron databases

su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf \
  --config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron

Import neutron database

# mysql -u root -p neutron  < mitaka-db-backup.sql

Start neutron all service

# for i in /etc/init.d/neutron-*; do $i start; done
# service nova-api restart

cinder

Stop cinder all service

for i in /etc/init.d/cinder-* ;do $i stop; done

Upgrade cinder all service

apt install --only-upgrade cinder-api cinder-scheduler

按照官網改config

Create cinder database

# mysql -u root -p
# DROP DATABASE cinder;
# CREATE DATABASE cinder;

Populate the cinder databases

su -s /bin/sh -c "cinder-manage db sync" cinder

Import cinder database

mysql -u root -p cinder  < mitaka-db-backup.sql

Start cinder all service

# for i in /etc/init.d/cinder-*; do $i start; done
# service nova-api restart

horizon

Upgrade horizon service

# apt install --only-upgrade openstack-dashboard -y

按照官網改config
Restart apache2 service
```
service apache2 reload
```

Compute node

nova

Stop nova-compute stop
```
# service nova-compute stop
```

Upgrade nova-compute

# apt install --only-upgrade nova-compute -y

按照官網改config
Start nova-compute service
```
# service nova-compute start
```

neutron

Stop neutron-linuxbridge-agent stop

# service neutron-linuxbridge-agent stop

Upgrade neutron-linuxbridge-agent

# apt install --only-upgrade neutron-linuxbridge-agent -y

按照官網改config

Start nova-compute and neutron-linuxbridge-agent service

# service nova-compute start
# service neutron-linuxbridge-agent start

Volume node

Stop cinder-volume stop
```
# service cinder-volume stop
```

Upgrade cinder-volume

# apt install --only-upgrade cinder-volume -y

按照官網改config

Start cinder-volume tgt service

# service tgt restart
# service cinder-volume restart

備註

以下列出遇到的問題

nova list噴錯:

ClientException: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
[Wed May 24 13:59:15.475574 2017] [wsgi:error] [pid 8013:tid 140130413639424] <class 'oslo_db.exception.DBError'> (HTTP 500) (Request-ID: req-d786ae6a-f413-4654-b8d8-0297a0c5f52b)

LOG如果出現:DBError: (pymysql.err.InternalError) (1054, u“Unknown column 'XXXXXXXXXXX 'field list'”) 請重新sync db
```
# su -s /bin/sh -c "xxxxx-manage db_sync" xxxxx
```

建立VM噴錯因為compute上的nova-compute有問題，只要建立VM，nova-compute就會死掉:

Failed to perform requested operation on instance "test", the instance has an error status: Please try again later [Error: No valid host was found. There are not enough hosts available.].

無法進入dashboard，查看apache2 error.log

ImportError: cannot import name securitygrouprules 然後在controller輸入 openstack flavor list，出現下錯誤

Unable to establish connection to http://controller:8774/v2.1/3fa5fc21995f4bf2b2da8d3073d9b819/flavors/detail: HTTPConnectionPool(host='controller', port=8774): Max retries exceeded with url: /v2.1/3fa5fc21995f4bf2b2da8d3073d9b819/flavors/detail (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7f613c181a90>: Failed to establish a new connection: [Errno 111] Connection refused',))

之後查看nova所有服務，發現狀態為dead，重啟後為active，但是再下一次openstack flavorlist或重整網頁，nova所有服務又死了

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