Ubuntu 20.04
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OpenStack Yoga : Configure Horizon2022/04/04

Configure OpenStack Dashboard Service (Horizon).
It's possible to control OpenStack on Web GUI to set Dashboard.
[1] Install Horizon.
root@dlp ~(keystone)#
apt -y install openstack-dashboard
[2] Configure Horizon.
root@dlp ~(keystone)#
vi /etc/openstack-dashboard/local_settings.py
# line 99 : change Memcache server

    'default': {
        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
        'LOCATION': '',

# line 113 : add

SESSION_ENGINE = "django.contrib.sessions.backends.cache"
# line 126 : set Openstack Host

# line 127 : comment out and add a line to specify URL of Keystone Host

# line 131 : set your timezone

# add to the end


root@dlp ~(keystone)#
chgrp nova /etc/nova/policy.json

root@dlp ~(keystone)#
chmod 640 /etc/nova/policy.json

root@dlp ~(keystone)#
systemctl restart apache2 nova-api
Access to the URL below with any web browser.
⇒ http://(Dashboard server's hostname or IP address)/horizon/
After accessing, following screen is displayed, then you can login with a user in Keystone.
It's possible to use all features if you login with [admin] user when you set it on keystone bootstrap.
If you login with a common user, it's possible to use or manage own instances.
[4] After login successfully, following screen is displayed (with common user). You can control Openstack on this Dashboard.
[5] To confirm own instances, Click [Instances] on the left pane, then they are diplayed on the right.
It's possible to confirm details of instance to click an instance name.
[6] The details of instance is displayed. To Click [Console] tab, it's possible to access to instance console.
[7] On instance console, it's possible to operate instance on Dashboard web.
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