cryptw/ganeti_webmgr
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================================================================================ Ganeti Web Manager ================================================================================ Ganeti Web Manager is a Django based web application that allows administrators and clients access to their ganeti clusters. Ganeti compatibility: >=2.2.x - supported 2.1.x - mostly supported 2.0.x - unsupported but may work 1.x - unsupported Browser compatibility: * Mozilla Firefox * Chrome / Chromium The VNC console requires the Java browser plugin to be installed and working. Project page: http://code.osuosl.org/projects/ganeti-webmgr Mailing List: http://groups.google.com/group/ganeti-webmgr IRC: #ganeti-webmgr on freenode.net ================================================================================ Installation ================================================================================ 1. Install Dependencies * Django >= 1.2 * django-registration * object_permissions (packaged with releases) * sqlite3, mysql, or postgresql 2. Deploy this code somewhere (i.e. /var/lib/django/ganeti_webmgr) 3. Copy settings.py.dist to settings.py 4. Create a database and configure your settings: DATABASE_ENGINE = '' <-- Change This to 'mysql', 'postgresql', 'postgresql_psycopg2' or 'sqlite3' DATABASE_NAME = '' <-- Change this to a database name, or a file for SQLite DATABASE_USER = '' <-- Change this (not needed for SQLite) DATABASE_PASSWORD = '' <-- Change this (not needed for SQLite) DATABASE_HOST = '' <-- Change this (not needed if database is localhost) DATABASE_PORT = '' <-- Change this (not needed if database is localhost) 5. If you are using the Django sites module, you will can set the id, name and domain of your site in settings.py and the site will automatically be created when syncdb is run. # Unique site id used by many modules to distinguish site from others. SITE_ID = 1 # Site name and domain referenced by some modules to provide links back to the # site. SITE_NAME = 'Ganeti Web Manager' SITE_DOMAIN = 'localhost:8000' 6. Initialize the databse ./manage.py syncdb 7. run the server Development: ./manage.py runserver Production: 1. Change your SECRET_KEY and WEB_MGR_API_KEY to unique (and hopefully unguessable) strings in your settings.py. 2. Follow the django guide to deploy [1] with apache. Here is an example mod_wsgi file: import os import sys path = '/var/lib/django/ganeti_webmgr' if path not in sys.path: sys.path.append(path) os.environ['DJANGO_SETTINGS_MODULE'] = 'settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler() 3. Configure cron job for periodic cache updater [2]. [1] http://docs.djangoproject.com/en/1.2/howto/deployment/ [2] http://code.osuosl.org/projects/ganeti-webmgr/wiki/Cache_System#Updating-with-cron Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/Install ================================================================================ Ganeti RAPI users and passwords ================================================================================ Before you can start using Ganeti Web Manager you will need to create a user and password on the Ganeti cluster. Here is an example with a user jack and password abc123: echo -n 'jack:Ganeti Remote API:abc123' | openssl md5 Add the hash to /var/lib/ganeti/rapi_users on all the nodes in the cluster and restart ganeti-rapi. Here's an example using above: # Hashed password for jack jack {HA1}54c12257ee9be413f2f3182435514aae write Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/Managing_Clusters#Ganeti-RAPI-users-and-passwords ================================================================================ Importing a Cluster ================================================================================ 1. Use the admin user created during syncdb to log in. 2. Import a cluster: Clusters -> Add Cluster 3. Fill out properties and click save When the cluster is created it will automatically synchronize the list of Virtual Machines with information from the ganeti cluster. Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/Importing_a_Cluster ================================================================================ Users, Groups, and Permissions ================================================================================ Permissions may be granted to both clusters and virtual machines. The permissions system is intended to allow users to manage themselves. Any object that can have its permissions edited will have a Users tab. Adding users to objects: 1. Navigate to Group, Cluster, or VirtualMachine detail page 2. Click Add New User 3. Select user or group 4. Select permissions 5. Save Updating permissions: 1. Navigate to Group, Cluster, or VirtualMachine detail page 2. Click Users tab 3. Click permissions column 4. Select permissions and save Deleting permissions: 1. Navigate to Group, Cluster, or VirtualMachine detail page 2. Click Users tab 3. Click the delete icon Deleting a user will remove all permissions, and other properties associated with the user such as cluster quotas. Users may belong to any number of user groups. User groups can be assigned permissions and quotas just like users. Users inherit permissions from groups and may act on their behalf to create virtual machines. Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/Permissions ================================================================================ Assigning Quotas ================================================================================ Quotas restrict the usage of cluster resources by users and groups. Default quotas can be set by editing clusters, if no quota is set unlimited access is allowed. This will affect all users and groups. The default quota can be overridden on the cluster users page: 1. Clusters -> Cluster -> Users 2. Click on the quota 3. Edit values Leaving a value empty specifies unlimited access for that resource. Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/Permissions#Quotas ================================================================================ Orphaned VirtualMachines ================================================================================ You can find VirtualMachines with no permissions via Admin -> Orphaned VMs. This will force a synchronization of all clusters and display VirtualMachines that do not have any permissions assigned. You only need to grant permissions directly on virtual machines if you are granting access to non-admin users. Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/Managing_Clusters#Orphaned-Virtual-Machines ================================================================================ Cache System ================================================================================ Ganeti Web Manager uses a cache system that stores information about ganeti clusters in the database. This allows the following: --- Ganeti --- / \ / \ Cluster -> -> Bulk Model <- cache <- Updater * Permissions are stored in the database and are associated to the cached objects * The cached data can be searched and or filtered * Limits the amount of traffic between the webserver and ganeti cluster. The cache system is transparent and will load cached data automatically when the object is initialized. Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/Cache_System ================================================================================ SSH Keys ================================================================================ Ganeti Web Manager allows users to store SSH Keys. Each virtual machine has a view that will return SSH keys for users with access. This can be used as a Ganeti post-install hook to deploy user's keys on the VMs. Also see: http://code.osuosl.org/projects/ganeti-webmgr/wiki/PermissionsSSHKeys
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