OpenStack Ussuri : Configure Horizon2020/06/08

Configure OpenStack Dashboard Service (Horizon).
It's possible to control OpenStack on Web GUI to set Dashboard.

This example is based on the environment like follows.

        eth0|10.0.0.30 
+-----------+-----------+
|    [ Control Node ]   |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  httpd     |
|  Keystone   Glance    |
|  Nova API   Horizon   |
+-----------------------+

[1]	Install Horizon.

# install from Ussuri, EPEL, powertools

[root@dlp ~(keystone)]#

dnf --enablerepo=centos-openstack-ussuri,powertools,epel -y install openstack-dashboard

[2]	Configure Horizon.

[root@dlp ~(keystone)]#

vi /etc/openstack-dashboard/local_settings

# line 39: set Hosts you allow to access

# to specify wildcard ['*'], allow all

ALLOWED_HOSTS = ['

', ]

# line 94-99: uncomment and specify Memcache server Host

CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
        'LOCATION': '10.0.0.30:11211',
    },
}

# line 105: add

SESSION_ENGINE = "django.contrib.sessions.backends.cache"

# line 118: set Openstack Host

# line 119: comment out and add a line to specify URL of Keystone Host

OPENSTACK_HOST = "

10.0.0.30

OPENSTACK_KEYSTONE_URL = "http://%s:5000/v3" % OPENSTACK_HOST

OPENSTACK_KEYSTONE_URL = "http://10.0.0.30:5000/v3"

# line 123: set your timezone

TIME_ZONE = "

Asia/Tokyo

# add to the end

WEBROOT = '/dashboard/'
LOGIN_URL = '/dashboard/auth/login/'
LOGOUT_URL = '/dashboard/auth/logout/'
LOGIN_REDIRECT_URL = '/dashboard/'
OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT = True
OPENSTACK_KEYSTONE_DEFAULT_DOMAIN = 'Default'
OPENSTACK_API_VERSIONS = {
    "identity": 3,
    "volume": 3,
    "compute": 2,
}

[root@dlp ~(keystone)]#

vi /etc/httpd/conf.d/openstack-dashboard.conf

# line 4: add

WSGIDaemonProcess dashboard
WSGIProcessGroup dashboard
WSGISocketPrefix run/wsgi

WSGIApplicationGroup %{GLOBAL}

[root@dlp ~(keystone)]#

systemctl restart httpd

[3]	If SELinux is enabled, change policy.

[root@dlp ~(keystone)]#

setsebool -P httpd_can_network_connect on

[4]	If Firewalld is running, allow services.

[root@dlp ~(keystone)]#

firewall-cmd --add-service={http,https} --permanent

success
[root@dlp ~(keystone)]#

firewall-cmd --reload

success

[5]

Access to the URL below with any web browser.
⇒ http://(server's hostname)/dashboard/

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.

[6]	After login successfully, following screen is displayed (with common user). You can control Openstack on this Dashboard.

[7]	To access an instance, Click [Instances] on the left menu. Then, instances' list is shown on the right, next Click the name of instance you'd like to access.

[8]	The description of instance is shown, next, Click [Console] tab.

[9]	The console of instance is shown. You can operate instances on here.

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