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Understanding the Openstack Dashboard

This article will help you to understand the functionality of the openstack dashboard. Dashboard will be used by administrators  and  tenant.  For tenant or user , it will act like a self service portal where they can launch the instance , allocate the storage and configure the network resource within the limits set by administrator.  Administrator can control the projects (tenant), user management, hypervisor management and images. Dashboard is a web-based graphical user interface to access, provision and automate cloud resources.  It supports the plugins where the third party products(Ex: Management tools, Billing , Monitoring ) and services can be integrated quickly.  Horizon service is responsible to provide the dashboard along with Apache.

At the time of installation , there will be two users created by default.

  1. demo   – Demo user is part of demo project . Its a sample user for tenant .
  2. admin  – Administrator user which is part of admin group.

 

We will login as admin user & explorer the available tabs and options.

1. Open the browser and enter the Openstack host URL .

Dashboard - Horizon
Dashboard – Horizon

 

2. Once you have logged in to the dashboard, you will get screen like below by default.

Openstack Dashboard
Openstack Dashboard

 

  • “Project”  tab  is exclusively for the users(tenant).  But still as a administrator , you will be able to use the project tab to launch the new instance.   (Next article show you the demonstration of instancing new instance)
  • Orchestration will help you to perform  automation.

 

3.  Let’s move forward to admin tab.  As administrator , you will be spending most of the time on this tab.  The below screenshot shows the usage summary for selected period.

Admin Overview
Admin Overview

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4. Click on hyper-visors to see the connected hypervisor on the system.

Openstack Hyper-visor Tab
Openstack Hyper-visor Tab

 

  • Hypervisor are used to create the virtual instance for users or tenant.  Openstack will support all the hypervisors in the world. (KVM,Xen , VMware ESXi , Hyper-V etc..)

 

5. Host aggregates is  a mechanism to further partition an availability zone. At this point , we didn’t create any host-aggregates .

Host Aggregates
Host Aggregates

 

6. As administrator , you will be able to see the all instances.  At this time ,we don’t have anything.

Openstack All instances
Openstack All instances

 

7.  Here you can get the list of volumes.

Openstack Volumes
Openstack Volumes

 

8. In the flavours, you can see the pre-configured instance types.

Openstack - Instance type
Openstack – Instance type

 

9. In Images tab, you see the pre-configured images . (which are used to start  the instances).

Openstack Images
Openstack Images

 

10. In Default tab ,you will find the default quota’s for each resources.

Openstack Quota
Openstack Quota

 

11. To know the openstack service’s current status , click on “System information” tab.

Openstack Service status
Openstack Service status

 

12. Identity tab holds projects and users.  Here is the preconfigured projects in openstack.

Openstack Projects
Openstack Projects

 

13. Openstack’s users are maintained in “Identity-> Users” tab.

Openstack User
Openstack Users

 

If you login as demo user, you will not be able to see the “admin” tab. Identity tab will just show the assigned projects in read only mode.

Openstack - Demo user
Openstack – Demo user

 

In this article ,we have seen the various  openstack’s tab and  the difference between admin user to demo user. (tenant). In the next article , we will launch the first openstack instance.

 

Hope this article is informative to you . Share it ! Support Openstack !! Be Sociable !!!

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