Settings Reference¶

ajax_poll_interval¶

Default: 2500

How frequently resources in transition states should be polled for updates, expressed in milliseconds.

ajax_queue_limit¶

Default: 10

The maximum number of simultaneous AJAX connections the dashboard may try to make. This is particularly relevant when monitoring a large number of instances, volumes, etc. which are all actively trying to update/change state.

angular_modules¶

Default: []

A list of AngularJS modules to be loaded when Angular bootstraps. These modules are added as dependencies on the root Horizon application horizon.

auto_fade_alerts¶

Default:

{
    'delay': 3000,
    'fade_duration': 1500,
    'types': []
}

If provided, will auto-fade the alert types specified. Valid alert types include: [‘alert-default’, ‘alert-success’, ‘alert-info’, ‘alert-warning’, ‘alert-danger’] Can also define the delay before the alert fades and the fade out duration.

bug_url¶

Default: None

If provided, a “Report Bug” link will be displayed in the site header which links to the value of this setting (ideally a URL containing information on how to report issues).

disable_password_reveal¶

Default: False

Setting this to True will disable the reveal button for password fields, including on the login form.

exceptions¶

Default:

{
    'unauthorized': [],
    'not_found': [],
    'recoverable': []
}

A dictionary containing classes of exceptions which Horizon’s centralized exception handling should be aware of. Based on these exception categories, Horizon will handle the exception and display a message to the user.

help_url¶

Default: None

If provided, a “Help” link will be displayed in the site header which links to the value of this setting (ideally a URL containing help information).

js_files¶

Default: []

A list of javascript source files to be included in the compressed set of files that are loaded on every page. This is needed for AngularJS modules that are referenced in angular_modules and therefore need to be include in every page.

js_spec_files¶

Default: []

A list of javascript spec files to include for integration with the Jasmine spec runner. Jasmine is a behavior-driven development framework for testing JavaScript code.

modal_backdrop¶

Default: "static"

Controls how bootstrap backdrop element outside of modals looks and feels. Valid values are "true" (show backdrop element outside the modal, close the modal after clicking on backdrop), "false" (do not show backdrop element, do not close the modal after clicking outside of it) and "static" (show backdrop element outside the modal, do not close the modal after clicking on backdrop).

password_autocomplete¶

Default: "off"

Controls whether browser autocompletion should be enabled on the login form. Valid values are "on" and "off".

password_validator¶

Default:

{
    'regex': '.*',
    'help_text': _("Password is not accepted")
}

A dictionary containing a regular expression which will be used for password validation and help text which will be displayed if the password does not pass validation. The help text should describe the password requirements if there are any.

This setting allows you to set rules for passwords if your organization requires them.

user_home¶

Default: settings.LOGIN_REDIRECT_URL

This can be either a literal URL path (such as the default), or Python’s dotted string notation representing a function which will evaluate what URL a user should be redirected to based on the attributes of that user.

OPENSTACK_CINDER_FEATURES¶

Default: {'enable_backup': False}

A dictionary of settings which can be used to enable optional services provided by cinder. Currently only the backup service is available.

CREATE_IMAGE_DEFAULTS¶

Default:

{
    'image_visibility': "public",
}

A dictionary of default settings for create image modal.

The image_visibility setting specifies the default visibility option. Valid values are "public" and "private". By default, the visibility option is public on create image modal. If it’s set to "private", the default visibility option is private.

HORIZON_IMAGES_UPLOAD_MODE¶

Default: "legacy"

Valid values are "direct", "legacy" (default) and "off". "off" disables the ability to upload images via Horizon. legacy enables local file upload by piping the image file through the Horizon’s web-server. direct sends the image file directly from the web browser to Glance. This bypasses Horizon web-server which both reduces network hops and prevents filling up Horizon web-server’s filesystem. direct is the preferred mode, but due to the following requirements it is not the default. The direct setting requires a modern web browser, network access from the browser to the public Glance endpoint, and CORS support to be enabled on the Glance API service. Without CORS support, the browser will forbid the PUT request to a location different than the Horizon server. To enable CORS support for Glance API service, you will need to edit [cors] section of glance-api.conf file (see here how to do it). Set allowed_origin to the full hostname of Horizon web-server (e.g. http://<HOST_IP>/dashboard) and restart glance-api process.

IMAGE_CUSTOM_PROPERTY_TITLES¶

Default:

{
    "architecture": _("Architecture"),
    "kernel_id": _("Kernel ID"),
    "ramdisk_id": _("Ramdisk ID"),
    "image_state": _("Euca2ools state"),
    "project_id": _("Project ID"),
    "image_type": _("Image Type")
}

Used to customize the titles for image custom property attributes that appear on image detail pages.

IMAGE_RESERVED_CUSTOM_PROPERTIES¶

Default: []

A list of image custom property keys that should not be displayed in the Update Metadata tree.

This setting can be used in the case where a separate panel is used for managing a custom property or if a certain custom property should never be edited.

IMAGES_ALLOW_LOCATION¶

Default: False

If set to True, this setting allows users to specify an image location (URL) as the image source when creating or updating images. Depending on the Glance version, the ability to set an image location is controlled by policies and/or the Glance configuration. Therefore IMAGES_ALLOW_LOCATION should only be set to True if Glance is configured to allow specifying a location. This setting has no effect when the Keystone catalog doesn’t contain a Glance v2 endpoint.

IMAGES_LIST_FILTER_TENANTS¶

Default: None

A list of dictionaries to add optional categories to the image fixed filters in the Images panel, based on project ownership.

Each dictionary should contain a tenant attribute with the project id, and optionally a text attribute specifying the category name, and an icon attribute that displays an icon in the filter button. The icon names are based on the default icon theme provided by Bootstrap.

Example:

[{'text': 'Official',
  'tenant': '27d0058849da47c896d205e2fc25a5e8',
  'icon': 'fa-check'}]

OPENSTACK_IMAGE_BACKEND¶

Default:

{
    'image_formats': [
        ('', _('Select format')),
        ('aki', _('AKI - Amazon Kernel Image')),
        ('ami', _('AMI - Amazon Machine Image')),
        ('ari', _('ARI - Amazon Ramdisk Image')),
        ('docker', _('Docker')),
        ('iso', _('ISO - Optical Disk Image')),
        ('qcow2', _('QCOW2 - QEMU Emulator')),
        ('raw', _('Raw')),
        ('vdi', _('VDI')),
        ('vhd', _('VHD')),
        ('vmdk', _('VMDK'))
    ]
}

Used to customize features related to the image service, such as the list of supported image formats.

AUTHENTICATION_PLUGINS¶

Default:

[
    'openstack_auth.plugin.password.PasswordPlugin',
    'openstack_auth.plugin.token.TokenPlugin'
]

A list of authentication plugins to be used. In most cases, there is no need to configure this.

AUTHENTICATION_URLS¶

Default: ['openstack_auth.urls']

A list of modules from which to collate authentication URLs from. The default option adds URLs from the django-openstack-auth module however others will be required for additional authentication mechanisms.

AVAILABLE_REGIONS¶

Default: None

A list of tuples which define multiple regions. The tuple format is ('http://{{ keystone_host }}:5000/v3', '{{ region_name }}'). If any regions are specified the login form will have a dropdown selector for authenticating to the appropriate region, and there will be a region switcher dropdown in the site header when logged in.

You should also define OPENSTACK_KEYSTONE_URL to indicate which of the regions is the default one.

DEFAULT_SERVICE_REGIONS¶

Default: {}

The default service region is set on a per-endpoint basis, meaning that once the user logs into some Keystone endpoint, if a default service region is defined for it in this setting and exists within Keystone catalog, it will be set as the initial service region in this endpoint. By default it is an empty dictionary because upstream can neither predict service region names in a specific deployment, nor tell whether this behavior is desired. The key of the dictionary is a full url of a Keystone endpoint with version suffix, the value is a region name.

Example:

DEFAULT_SERVICE_REGIONS = {
    OPENSTACK_KEYSTONE_URL: 'RegionOne'
}

As of Rocky you can optionally you can set '*' as the key, and if no matching endpoint is found this will be treated as a global default.

Example:

DEFAULT_SERVICE_REGIONS = {
    '*': 'RegionOne',
    OPENSTACK_KEYSTONE_URL: 'RegionTwo'
}

ENABLE_CLIENT_TOKEN¶

Default: True

This setting will Enable/Disable access to the Keystone Token to the browser.

ENFORCE_PASSWORD_CHECK¶

Default: False

This setting will display an ‘Admin Password’ field on the Change Password form to verify that it is indeed the admin logged-in who wants to change the password.

KEYSTONE_PROVIDER_IDP_ID¶

Default: "localkeystone"

This ID is only used for comparison with the service provider IDs. This ID should not match any service provider IDs.

KEYSTONE_PROVIDER_IDP_NAME¶

Default: "Local Keystone"

The Keystone Provider drop down uses Keystone to Keystone federation to switch between Keystone service providers. This sets the display name for the Identity Provider (dropdown display name).

OPENSTACK_KEYSTONE_ADMIN_ROLES¶

Default: ["admin"]

The list of roles that have administrator privileges in this OpenStack installation. This check is very basic and essentially only works with keystone v2.0 and v3 with the default policy file. The setting assumes there is a common admin like role(s) across services. Example uses of this setting are:

• to rename the admin role to cloud-admin
• allowing multiple roles to have administrative privileges, like ["admin", "cloud-admin", "net-op"]

OPENSTACK_KEYSTONE_BACKEND¶

Default:

{
    'name': 'native',
    'can_edit_user': True,
    'can_edit_group': True,
    'can_edit_project': True,
    'can_edit_domain': True,
    'can_edit_role': True,
}

A dictionary containing settings which can be used to identify the capabilities of the auth backend for Keystone.

If Keystone has been configured to use LDAP as the auth backend then set can_edit_user and can_edit_project to False and name to "ldap".

OPENSTACK_KEYSTONE_DEFAULT_DOMAIN¶

Default: "Default"

Overrides the default domain used when running on single-domain model with Keystone V3. All entities will be created in the default domain.

OPENSTACK_KEYSTONE_DEFAULT_ROLE¶

Default: "_member_"

The name of the role which will be assigned to a user when added to a project. This value must correspond to an existing role name in Keystone. In general, the value should match the member_role_name defined in keystone.conf.

OPENSTACK_KEYSTONE_DOMAIN_CHOICES¶

Default:

(
    ('Default', 'Default'),
)

If OPENSTACK_KEYSTONE_DOMAIN_DROPDOWN is enabled, this option can be used to set the available domains to choose from. This is a list of pairs whose first value is the domain name and the second is the display name.

OPENSTACK_KEYSTONE_DOMAIN_DROPDOWN¶

Default: False

Set this to True if you want available domains displayed as a dropdown menu on the login screen. It is strongly advised NOT to enable this for public clouds, as advertising enabled domains to unauthenticated customers irresponsibly exposes private information. This should only be used for private clouds where the dashboard sits behind a corporate firewall.

OPENSTACK_KEYSTONE_FEDERATION_MANAGEMENT¶

Default: False

Set this to True to enable panels that provide the ability for users to manage Identity Providers (IdPs) and establish a set of rules to map federation protocol attributes to Identity API attributes. This extension requires v3.0+ of the Identity API.

OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT¶

Default: False

Set this to True if running on multi-domain model. When this is enabled, it will require user to enter the Domain name in addition to username for login.

OPENSTACK_KEYSTONE_URL¶

Default: "http://%s:5000/v3" % OPENSTACK_HOST

The full URL for the Keystone endpoint used for authentication. Unless you are using HTTPS, running your Keystone server on a nonstandard port, or using a nonstandard URL scheme you shouldn’t need to touch this setting.

PASSWORD_EXPIRES_WARNING_THRESHOLD_DAYS¶

Default: -1

Password will have an expiration date when using keystone v3 and enabling the feature. This setting allows you to set the number of days that the user will be alerted prior to the password expiration. Once the password expires keystone will deny the access and users must contact an admin to change their password. Setting this value to N days means the user will be alerted when the password expires in less than N+1 days. -1 disables the feature.

PROJECT_TABLE_EXTRA_INFO¶

Default: {}

Adds additional information for projects as extra attributes. Projects can have extra attributes as defined by Keystone v3. This setting allows those attributes to be shown in Horizon.

For example:

PROJECT_TABLE_EXTRA_INFO = {
    'phone_num': _('Phone Number'),
}

SECURE_PROXY_ADDR_HEADER¶

Default: False

If horizon is behind a proxy server and the proxy is configured, the IP address from request is passed using header variables inside the request. The header name depends on a proxy or a load-balancer. This setting specifies the name of the header with remote IP address. The main use is for authentication log (success or fail) displaing the IP address of the user. The commom value for this setting is HTTP_X_REAL_IP or HTTP_X_FORWARDED_FOR. If not present, then REMOTE_ADDR header is used. (REMOTE_ADDR is the field of Django HttpRequest object which contains IP address of the client.)

TOKEN_DELETION_DISABLED¶

Default: False

This setting allows deployers to control whether a token is deleted on log out. This can be helpful when there are often long running processes being run in the Horizon environment.

TOKEN_TIMEOUT_MARGIN¶

Default: 0

A time margin in seconds to subtract from the real token’s validity. An example use case is that the token can be valid once the middleware passed, and invalid (timed-out) during a view rendering and this generates authorization errors during the view rendering. By setting this value to a few seconds, you can avoid token expiration during a view rendering.

USER_TABLE_EXTRA_INFO¶

Default: {}

Adds additional information for users as extra attributes. Users can have extra attributes as defined by Keystone v3. This setting allows those attributes to be shown in Horizon.

For example:

USER_TABLE_EXTRA_INFO = {
    'phone_num': _('Phone Number'),
}

WEBSSO_CHOICES¶

Default:

(
    ("credentials", _("Keystone Credentials")),
    ("oidc", _("OpenID Connect")),
    ("saml2", _("Security Assertion Markup Language"))
)

This is the list of authentication mechanisms available to the user. It includes Keystone federation protocols such as OpenID Connect and SAML, and also keys that map to specific identity provider and federation protocol combinations (as defined in WEBSSO_IDP_MAPPING). The list of choices is completely configurable, so as long as the id remains intact. Do not remove the credentials mechanism unless you are sure. Once removed, even admins will have no way to log into the system via the dashboard.

WEBSSO_ENABLED¶

Default: False

Enables keystone web single-sign-on if set to True. For this feature to work, make sure that you are using Keystone V3 and Django OpenStack Auth V1.2.0 or later.

WEBSSO_IDP_MAPPING¶

Default: {}

A dictionary of specific identity provider and federation protocol combinations. From the selected authentication mechanism, the value will be looked up as keys in the dictionary. If a match is found, it will redirect the user to a identity provider and federation protocol specific WebSSO endpoint in keystone, otherwise it will use the value as the protocol_id when redirecting to the WebSSO by protocol endpoint.

Example:

WEBSSO_CHOICES =  (
    ("credentials", _("Keystone Credentials")),
    ("oidc", _("OpenID Connect")),
    ("saml2", _("Security Assertion Markup Language")),
    ("acme_oidc", "ACME - OpenID Connect"),
    ("acme_saml2", "ACME - SAML2")
)

WEBSSO_IDP_MAPPING = {
    "acme_oidc": ("acme", "oidc"),
    "acme_saml2": ("acme", "saml2")
}

WEBSSO_INITIAL_CHOICE¶

Default: "credentials"

Specifies the default authentication mechanism. When user lands on the login page, this is the first choice they will see.

WEBSSO_DEFAULT_REDIRECT¶

Default: False

Allows to redirect on login to the IdP provider defined on PROTOCOL and REGION In cases you have a single IdP providing websso, in order to improve user experience, you can redirect on the login page to the IdP directly by specifying WEBSSO_DEFAULT_REDIRECT_PROTOCOL and WEBSSO_DEFAULT_REDIRECT_REGION variables.

WEBSSO_DEFAULT_REDIRECT_PROTOCOL¶

Default: None

Allows to specify the protocol for the IdP to contact if the WEBSSO_DEFAULT_REDIRECT is set to True

WEBSSO_DEFAULT_REDIRECT_REGION¶

Default: OPENSTACK_KEYSTONE_URL

Allows to specify thee region of the IdP to contact if the WEBSSO_DEFAULT_REDIRECT is set to True

WEBSSO_DEFAULT_REDIRECT_LOGOUT¶

Default: None

Allows to specify a callback to the IdP to cleanup the SSO resources. Once the user logs out it will redirect to the IdP log out method.

WEBSSO_KEYSTONE_URL¶

Default: None

The full auth URL for the Keystone endpoint used for web single-sign-on authentication. Use this when OPENSTACK_KEYSTONE_URL is set to an internal Keystone endpoint and is not reachable from the external network where the identity provider lives. This URL will take precedence over OPENSTACK_KEYSTONE_URL if the login choice is an external identity provider (IdP).

ALLOWED_PRIVATE_SUBNET_CIDR¶

Default:

{
    'ipv4': [],
    'ipv6': []
}

A dictionary used to restrict user private subnet CIDR range. An empty list means that user input will not be restricted for a corresponding IP version. By default, there is no restriction for both IPv4 and IPv6.

Example:

{
    'ipv4': [
        '192.168.0.0/16',
        '10.0.0.0/8'
    ],
    'ipv6': [
        'fc00::/7',
    ]
}

OPENSTACK_NEUTRON_NETWORK¶

Default:

{
    'default_dns_nameservers': [],
    'enable_auto_allocated_network': False,
    'enable_distributed_router': False,
    'enable_fip_topology_check': True,
    'enable_ha_router': False,
    'enable_ipv6': True,
    'enable_quotas': False,
    'enable_rbac_policy': True,
    'enable_router': True,
    'extra_provider_types': {},
    'physical_networks': [],
    'segmentation_id_range': {},
    'supported_provider_types': ["*"],
    'supported_vnic_types': ["*"],
}

A dictionary of settings which can be used to enable optional services provided by Neutron and configure Neutron specific features. The following options are available.

{
    'awesome': {
        'display_name': 'Awesome',
        'require_physical_network': False,
        'require_segmentation_id': True,
    },
}

{
    'vlan': [1024, 2048],
    'gre': [4094, 65536]
}

CREATE_INSTANCE_FLAVOR_SORT¶

Default:

{
    'key': 'ram'
}

When launching a new instance the default flavor is sorted by RAM usage in ascending order. You can customize the sort order by: id, name, ram, disk and vcpus. Additionally, you can insert any custom callback function. You can also provide a flag for reverse sort. See the description in local_settings.py.example for more information.

This example sorts flavors by vcpus in descending order:

CREATE_INSTANCE_FLAVOR_SORT = {
     'key':'vcpus',
     'reverse': True,
}

CONSOLE_TYPE¶

Default: "AUTO"

This setting specifies the type of in-browser console used to access the VMs. Valid values are "AUTO", "VNC", "SPICE", "RDP", "SERIAL", "MKS", and None.

ENABLE_FLAVOR_EDIT¶

Default: False

This setting enables the ability to edit flavors.

INSTANCE_LOG_LENGTH¶

Default: 35

This setting enables you to change the default number of lines displayed for the log of an instance. Valid value must be a positive integer.

LAUNCH_INSTANCE_DEFAULTS¶

Default:

{
    "config_drive": False,
    "create_volume": True,
    "hide_create_volume": False,
    "disable_image": False,
    "disable_instance_snapshot": False,
    "disable_volume": False,
    "disable_volume_snapshot": False,
    "enable_scheduler_hints": True,
}

A dictionary of settings which can be used to provide the default values for properties found in the Launch Instance modal. An explanation of each setting is provided below.

LAUNCH_INSTANCE_LEGACY_ENABLED¶

Default: False

This setting enables the Python Launch Instance workflow.

LAUNCH_INSTANCE_NG_ENABLED¶

Default: True

This setting enables the AngularJS Launch Instance workflow.

OPENSTACK_ENABLE_PASSWORD_RETRIEVE¶

Default: "False"

When set, enables the instance action “Retrieve password” allowing password retrieval from metadata service.

OPENSTACK_HYPERVISOR_FEATURES¶

Default:

{
    'can_set_mount_point': False,
    'can_set_password': False,
    'requires_keypair': False,
    'enable_quotas': True
}

A dictionary containing settings which can be used to identify the capabilities of the hypervisor for Nova.

The Xen Hypervisor has the ability to set the mount point for volumes attached to instances (other Hypervisors currently do not). Setting can_set_mount_point to True will add the option to set the mount point from the UI.

Setting can_set_password to True will enable the option to set an administrator password when launching or rebuilding an instance.

Setting requires_keypair to True will require users to select a key pair when launching an instance.

Setting enable_quotas to False will make Horizon treat all Nova quotas as disabled, thus it won’t try to modify them. By default, quotas are enabled.

OPENSTACK_INSTANCE_RETRIEVE_IP_ADDRESSES¶

Default: True

This settings controls whether IP addresses of servers are retrieved from neutron in the project instance table. Setting this to False may mitigate a performance issue in the project instance table in large deployments.

If your deployment has no support of floating IP like provider network scenario, you can set this to False in most cases. If your deployment supports floating IP, read the detail below and understand the under-the-hood before setting this to False.

Nova has a mechanism to cache network info but it is not fast enough in some cases. For example, when a user associates a floating IP or updates an IP address of an server port, it is not reflected to the nova network info cache immediately. This means an action which a user makes from the horizon instance table is not reflected into the table content just after the action. To avoid this, horizon retrieves IP address info from neutron when retrieving a list of servers from nova.

On the other hand, this operation requires a full list of neutron ports and can potentially lead to a performance issue in large deployments (bug 1722417). This issue can be avoided by skipping querying IP addresses to neutron and setting this to False achieves this. Note that when disabling the query to neutron it takes some time until associated floating IPs are visible in the project instance table and users may reload the table to check them.

OPENSTACK_NOVA_EXTENSIONS_BLACKLIST¶

Default: []

Ignore all listed Nova extensions, and behave as if they were unsupported. Can be used to selectively disable certain costly extensions for performance reasons.

SWIFT_FILE_TRANSFER_CHUNK_SIZE¶

Default: 512 * 1024

This setting specifies the size of the chunk (in bytes) for downloading objects from Swift. Do not make it very large (higher than several dozens of Megabytes, exact number depends on your connection speed), otherwise you may encounter socket timeout. The default value is 524288 bytes (or 512 Kilobytes).

ADD_TEMPLATE_LOADERS¶

Template loaders defined here will be loaded at the end of TEMPLATE_LOADERS, after the CACHED_TEMPLATE_LOADERS and will never have a cached output.

CACHED_TEMPLATE_LOADERS¶

Template loaders defined here will have their output cached if DEBUG is set to False.

TEMPLATE_LOADERS¶

These template loaders will be the first loaders and get loaded before the CACHED_TEMPLATE_LOADERS. Use ADD_TEMPLATE_LOADERS if you want to add loaders at the end and not cache loaded templates. After the whole settings process has gone through, TEMPLATE_LOADERS will be:

TEMPLATE_LOADERS += (
    ('django.template.loaders.cached.Loader', CACHED_TEMPLATE_LOADERS),
) + tuple(ADD_TEMPLATE_LOADERS)