horizon/doc/source/topics/settings.rst

Settings and Configuration

Introduction

Horizon's settings tend to fall into three categories:

• Horizon configuration options (contained in the HORIZON_CONFIG dict) which are not OpenStack-specific and pertain only to the core framework.
• OpenStack-related settings which pertain to other projects/services and are generally prefixed with OPENSTACK_ in the settings file.
• Django settings (including common plugins like django-compressor) which can be (and should be) read about in their respective documentation.

What follows is an overview of the Horizon and OpenStack-specific settings and a few notes on the Django-related settings.

Note

Prior to the Essex release of Horizon there were settings which controlled whether features such as Object Storage/Swift or Networking/Neutron would be enabled in the OpenStack Dashboard. This code has long since been removed and those pre-Essex settings have no impact now.

In Essex and later, the Service Catalog returned by the Identity Service after a user has successfully authenticated determines the dashboards and panels that will be available within the OpenStack Dashboard. If you are not seeing a particular service you expected make sure your Service Catalog is configured correctly.

Horizon Settings

The following options are available in order to configure/customize the behavior of your Horizon installation. All of them are contained in the HORIZON_CONFIG dictionary.

dashboards

Warning

In OpenStack Dashboard configuration, we suggest NOT to use this setting. Please specify the order of dashboard using the pluggable-settings-label.

Both the pluggable dashboard mechanism (OpenStack Dashboard default) and this setting dashboard configure the order of dashboards and the setting dashboard precedes the pluggable dashboard mechanism. Specifying the order in two places may cause confusion. Please use this parameter only when the pluggable config is not used.

2012.1(Essex)

Default: None

Horizon Dashboards are automatically discovered in the following way:

• By adding a configuration file to the openstack_dashboard/local/enabled directory (for more information see pluggable-settings-label). This is the default way in OpenStack Dashboard.
• By traversing Django's list of INSTALLED_APPS and importing any files that have the name "dashboard.py" and include code to register themselves as a Horizon dashboard.

By default, dashboards defined by openstack_dashboard/local/enabled are displayed first in the alphabetical order of the config files, and then the remaining dashboards discovered by traversing INSTALLED_APPS are displayed in the alphabetical order.

If a list of dashboard slugs is provided in this setting, the supplied ordering is applied to the list of discovered dashboards. If the list of dashboard slugs is shorter than the number of discovered dashboards, the remaining dashboards are appended in the default order described above.

The dashboards listed must be in a Python module which is included in the INSTALLED_APPS list and on the Python path.

default_dashboard

Warning

In OpenStack Dashboard configuration, we suggest NOT to use this setting. Please specify the order of dashboard using the pluggable-settings-label.

The default dashboard can be configured via both the pluggable dashboard mechanism (OpenStack Dashboard default) and this setting default_dashboard, and if both are specified, the setting by the pluggable dashboard mechanism will be used. Specifying the default dashboard in two places may cause confusion. Please use this parameter only when the pluggable config is not used.

2012.1(Essex)

Default: None

The slug of the dashboard which should act as the first-run/fallback dashboard whenever a user logs in or is otherwise redirected to an ambiguous location.

user_home

2012.1(Essex)

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.

ajax_queue_limit

2012.1(Essex)

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.

ajax_poll_interval

2012.1(Essex)

Default: 2500

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

auto_fade_alerts

2013.2(Havana)

Defaults: {'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

9.0.0(Mitaka)

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).

help_url

2012.2(Folsom)

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).

exceptions

2012.1(Essex)

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.

modal_backdrop

2014.2(Kilo)

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).

disable_password_reveal

2015.1(Kilo)

Default: False

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

password_validator

2012.1(Essex)

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.

password_autocomplete

2013.1(Grizzly)

Default: "off"

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

simple_ip_management

2013.1(Grizzly)

Default: True

Enable or disable simplified floating IP address management.

"Simple" floating IP address management means that the user does not ever have to select the specific IP addresses they wish to use, and the process of allocating an IP and assigning it to an instance is one-click.

The "advanced" floating IP management allows users to select the floating IP pool from which the IP should be allocated and to select a specific IP address when associating one with an instance.

Note

Currently "simple" floating IP address management is not compatible with Neutron. There are two reasons for this. First, Neutron does not support the default floating IP pool at the moment. Second, a Neutron floating IP can be associated with each VIF and we need to check whether there is only one VIF for an instance to enable simple association support.

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.

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

2015.1(Kilo)

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.

OpenStack Settings (Partial)

The following settings inform the OpenStack Dashboard of information about the other OpenStack projects which are part of this cloud and control the behavior of specific dashboards, panels, API calls, etc.

Most of the following settings are defined in

openstack_dashboard/local/local_settings.py, which should be copied from openstack_dashboard/local/local_settings.py.example.

Since Mitaka, there is also a way to drop file snippets into openstack_dashboard/local/local_settings.d/. These snippets must end with .py and must contain valid Python code. The snippets are loaded after local_settings.py is evaluated so you are able to override settings from local_settings.py without the need to change this file. Snippets are evaluated in alphabetical order by file name. It's good style to name the files in local_settings.d/ like _ZZ_another_setting.py where ZZ is a number. The file must start with an underscore (_) because Python can not load files starting with a number. So given that you have 3 files, local_settings.py, local_settings.d/_10_setting_one.py and local_settings.d/_20_settings_two.py, the settings from local_settings.py are evaluated first. Settings from local_settings.d/_10_settings_one.py override settings from local_settings.py and settings from local_settings.d/_20_settings_two.py override all other settings because that's the file which is evaluated last.

AUTHENTICATION_URLS

2015.1(Kilo)

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.

API_RESULT_LIMIT

2012.1(Essex)

Default: 1000

The maximum number of objects (e.g. Swift objects or Glance images) to display on a single page before providing a paging element (a "more" link) to paginate results.

API_RESULT_PAGE_SIZE

2012.2(Folsom)

Default: 20

Similar to API_RESULT_LIMIT. This setting controls the number of items to be shown per page if API pagination support for this exists.

AVAILABLE_REGIONS

2012.1(Essex)

Default: None

A list of tuples which define multiple regions. The tuple format is ('http://{{ keystone_host }}:5000/v2.0', '{{ 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.

If you do not have multiple regions you should use the OPENSTACK_HOST and OPENSTACK_KEYSTONE_URL settings instead.

CONSOLE_TYPE

2013.2(Havana)

Default: "AUTO"

This setting specifies the type of in-browser console used to access the VMs. Valid values are "AUTO"(default), "VNC", "SPICE", "RDP", "SERIAL", and None. None deactivates the in-browser console and is available in version 2014.2(Juno). "SERIAL" is available since 2015.1(Kilo).

SWIFT_FILE_TRANSFER_CHUNK_SIZE

2015.1(Kilo)

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).

INSTANCE_LOG_LENGTH

2015.1(Kilo)

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.

CREATE_INSTANCE_FLAVOR_SORT

2013.2(Havana)

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,
}

AVAILABLE_THEMES

9.0.0(Mitaka)

Default: AVAILABLE_THEMES = [ ('default', 'Default', 'themes/default'), ('material', 'Material', 'themes/material'), ]

This setting tells Horizon which themes to use.

A list of tuples which define multiple themes. The tuple format is ('{{ theme_name }}', '{{ theme_label }}', '{{ theme_path }}').

The theme_name is the name used to define the directory which the theme is collected into, under /{{ THEME_COLLECTION_DIR }}. It also specifies the key by which the selected theme is stored in the browser's cookie.

The theme_label is the user-facing label that is shown in the theme picker. The theme picker is only visible if more than one theme is configured, and shows under the topnav's user menu.

By default, the theme path is the directory that will serve as the static root of the theme and the entire contents of the directory is served up at /{{ THEME_COLLECTION_DIR }}/{{ theme_name }}. If you wish to include content other than static files in a theme directory, but do not wish that content to be served up, then you can create a sub directory named static. If the theme folder contains a sub-directory with the name static, then static/custom/static will be used as the root for the content served at /static/custom`.

The static root of the theme folder must always contain a _variables.scss file and a _styles.scss file. These must contain or import all the bootstrap and horizon specific variables and styles which are used to style the GUI. For example themes, see: /horizon/openstack_dashboard/themes/

Horizon ships with two themes configured. 'default' is the default theme, and 'material' is based on Google's Material Design.

DEFAULT_THEME

9.0.0(Mitaka)

Default: "default"

This setting tells Horizon which theme to use if the user has not yet selected a theme through the theme picker and therefore set the cookie value. This value represents the theme_name key that is used from AVAILABLE_THEMES. To use this setting, the theme must also be configured inside of AVAILABLE_THEMES.

THEME_COLLECTION_DIR

9.0.0(Mitaka)

Default: "themes"

This setting tells Horizon which static directory to collect the available themes into, and therefore which URL points to the theme colleciton root. For example, the default theme would be accessible via /{{ STATIC_URL }}/themes/default.

THEME_COOKIE_NAME

9.0.0(Mitaka)

Default: "theme"

This setting tells Horizon in which cookie key to store the currently set theme. The cookie expiration is currently set to a year.

CUSTOM_THEME_PATH

2015.1(Kilo)

(Deprecated)

Default: "themes/default"

This setting tells Horizon to use a directory as a custom theme.

By default, this directory will serve as the static root of the theme and the entire contents of the directory will be served up at /static/custom. If you wish to include content other than static files in a theme directory, but do not wish that content to be served up, then you can create a sub directory named static. If the theme folder contains a sub-directory with the name static, then static/custom/static will be used as the root for the content served at /static/custom`.

The static root of the theme folder must always contain a _variables.scss file and a _styles.scss file. These must contain or import all the bootstrap and horizon specific variables and styles which are used to style the GUI. For example themes, see: /horizon/openstack_dashboard/themes/

Horizon ships with one alternate theme based on Google's Material Design. To use the alternate theme, set your CUSTOM_THEME_PATH to themes/material.

This option is now marked as "deprecated" and will be removed in Newton or a later release. Themes are now controlled by AVAILABLE_THEMES. We suggest changing your custom theme settings to use this option instead.

DEFAULT_THEME_PATH

8.0.0(Liberty)

(Deprecated)

Default: "themes/default"

This setting allows Horizon to collect an additional theme during static collection and be served up via /static/themes/default. This is useful if CUSTOM_THEME_PATH inherits from another theme (like 'default').

If DEFAULT_THEME_PATH is the same as CUSTOM_THEME_PATH, then collection is skipped and /static/themes will not exist.

This option is now marked as "deprecated" and will be removed in Newton or a later release. Themes are now controlled by AVAILABLE_THEMES.

DROPDOWN_MAX_ITEMS

2015.1(Kilo)

Default: 30

This setting sets the maximum number of items displayed in a dropdown. Dropdowns that limit based on this value need to support a way to observe the entire list.

ENFORCE_PASSWORD_CHECK

2015.1(Kilo)

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.

IMAGES_LIST_FILTER_TENANTS

2013.1(Grizzly)

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': 'icon-ok'}]

Note

Since the Kilo release, the Bootstrap icon library (e.g. 'icon-ok') has been replaced with Font Awesome (e.g. 'fa-check').

IMAGE_RESERVED_CUSTOM_PROPERTIES

2014.2(Juno)

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.

LAUNCH_INSTANCE_DEFAULTS

9.0.0(Mitaka)

Default:

{
    "config_drive": False
}

A dictionary of settings which can be used to provide the default values for properties found in the Launch Instance modal.

The config_drive setting specifies the default value for the Configuration Drive property.

LAUNCH_INSTANCE_NG_ENABLED

8.0.0(Liberty)

Default: True

This setting enables the AngularJS Launch Instance workflow.

Note

The default value for this has been changed to True in 9.0.0 (Mitaka)

Note

It is possible to run both the AngularJS and Python workflows simultaneously, so the other may be need to be toggled with LAUNCH_INSTANCE_LEGACY_ENABLED

LAUNCH_INSTANCE_LEGACY_ENABLED

8.0.0(Liberty)

Default: False

This setting enables the Python Launch Instance workflow.

Note

The default value for this has been changed to False in 9.0.0 (Mitaka)

Note

It is possible to run both the AngularJS and Python workflows simultaneously, so the other may be need to be toggled with LAUNCH_INSTANCE_NG_ENABLED

MESSAGES_PATH

9.0.0(Mitaka)

Default: None

The absolute path to the directory where message files are collected.

When the user logins to horizon, the message files collected are processed and displayed to the user. Each message file should contain a JSON formatted data and must have a .json file extension. For example:

{
    "level": "info",
    "message": "message of the day here"
}

Possible values for level are: success, info, warning and error.

OPENSTACK_API_VERSIONS

2013.2(Havana)

Default:

{
    "data-processing": 1.1,
    "identity": 2.0,
    "volume": 2,
    "compute": 2
}

Overrides for OpenStack API versions. Use this setting to force the OpenStack dashboard to use a specific API version for a given service API.

Note

The version should be formatted as it appears in the URL for the service API. For example, the identity service APIs have inconsistent use of the decimal point, so valid options would be "2.0" or "3". For example:

OPENSTACK_API_VERSIONS = {
    "data-processing": 1.1,
    "identity": 3,
    "volume": 2,
    "compute": 2
}

OPENSTACK_ENABLE_PASSWORD_RETRIEVE

2014.1(Icehouse)

Default: "False"

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

OPENSTACK_ENDPOINT_TYPE

2012.1(Essex)

Default: "publicURL"

A string which specifies the endpoint type to use for the endpoints in the Keystone service catalog. The default value for all services except for identity is "publicURL" . The default value for the identity service is "internalURL".

OPENSTACK_HOST

2012.1(Essex)

Default: "127.0.0.1"

The hostname of the Keystone server used for authentication if you only have one region. This is often the only setting that needs to be set for a basic deployment.

OPENSTACK_HYPERVISOR_FEATURES

2012.2(Folsom)

Default:

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

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.

OPENSTACK_IMAGE_BACKEND

2013.2(Havana)

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.

IMAGE_CUSTOM_PROPERTY_TITLES

2014.1(Icehouse)

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.

HORIZON_IMAGES_ALLOW_UPLOAD

2013.1(Grizzly)

Default: True

If set to False, this setting disables local uploads to prevent filling up the disk on the dashboard server since uploads to the Glance image store service tend to be particularly large - in the order of hundreds of megabytes to multiple gigabytes.

Note

This will not disable image creation altogether, as this setting does not affect images created by specifying an image location (URL) as the image source.

OPENSTACK_KEYSTONE_BACKEND

2012.1(Essex)

Default: {'name': 'native', 'can_edit_user': True, 'can_edit_project': 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

2013.2(Havana)

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

2011.3(Diablo)

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_ADMIN_ROLES

2015.1(Kilo)

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_MULTIDOMAIN_SUPPORT

2013.2(Havana)

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

2011.3(Diablo)

Default: "http://%s:5000/v2.0" % 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.

OPENSTACK_KEYSTONE_FEDERATION_MANAGEMENT

9.0.0(Mitaka)

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.

WEBSSO_ENABLED

2015.1(Kilo)

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_INITIAL_CHOICE

2015.1(Kilo)

Default: "credentials"

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

WEBSSO_CHOICES

2015.1(Kilo)

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_IDP_MAPPING

8.0.0(Liberty)

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")
}

Note

The value is expected to be a tuple formatted as: (<idp_id>, <protocol_id>).

OPENSTACK_CINDER_FEATURES

2014.2(Juno)

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.

OPENSTACK_HEAT_STACK

9.0.0(Mitaka)

Default: {'enable_user_pass': True}

A dictionary of settings to use with heat stacks. Currently, the only setting available is "enable_user_pass", which can be used to disable the password field while launching the stack. Currently HEAT API needs user password to perform all the heat operations because in HEAT API trusts is not enabled by default. So, this setting can be set as "False" in-case HEAT uses trusts by default otherwise it needs to be set as "True".

OPENSTACK_NEUTRON_NETWORK

2013.1(Grizzly)

Default:

{
    'enable_router': True,
    'enable_distributed_router': False,
    'enable_ha_router': False,
    'enable_lb': True,
    'enable_quotas': False,
    'enable_firewall': True,
    'enable_vpn': True,
    'profile_support': None,
    'supported_provider_types': ["*"],
    'supported_vnic_types': ["*"],
    'segmentation_id_range': {},
    'enable_fip_topology_check': True,
}

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.

enable_router

2014.2(Juno)

Default: True

Enable (True) or disable (False) the panels and menus related to router and Floating IP features. This option only affects when Neutron is enabled. If your Neutron deployment has no support for Layer-3 features, or you do not wish to provide the Layer-3 features through the Dashboard, this should be set to False.

enable_distributed_router

2014.2(Juno)

Default: False

Enable or disable Neutron distributed virtual router (DVR) feature in the Router panel. For the DVR feature to be enabled, this option needs to be set to True and your Neutron deployment must support DVR. Even when your Neutron plugin (like ML2 plugin) supports DVR feature, DVR feature depends on l3-agent configuration, so deployers should set this option appropriately depending on your deployment.

enable_ha_router

2014.2(Juno)

Default: False

Enable or disable HA (High Availability) mode in Neutron virtual router in the Router panel. For the HA router mode to be enabled, this option needs to be set to True and your Neutron deployment must support HA router mode. Even when your Neutron plugin (like ML2 plugin) supports HA router mode, the feature depends on l3-agent configuration, so deployers should set this option appropriately depending on your deployment.

enable_lb

2013.1(Grizzly)

(Deprecated)

Default: True

Enables the load balancer panel. The load balancer panel will be enabled when this option is True and your Neutron deployment supports LBaaS. If you want to disable load balancer panel even when your Neutron supports LBaaS, set it to False.

This option is now marked as "deprecated" and will be removed in Kilo or later release. The load balancer panel is now enabled only when LBaaS feature is available in Neutron and this option is no longer needed. We suggest not to use this option to disable the load balancer panel from now on.

enable_quotas

Default: False

Enable support for Neutron quotas feature. To make this feature work appropriately, you need to use Neutron plugins with quotas extension support and quota_driver should be DbQuotaDriver (default config).

enable_firewall

(Deprecated)

Default: True

Enables the firewall panel. firewall panel will be enabled when this option is True and your Neutron deployment supports FWaaS. If you want to disable firewall panel even when your Neutron supports FWaaS, set it to False.

This option is now marked as "deprecated" and will be removed in Kilo or later release. The firewall panel is now enabled only when FWaaS feature is available in Neutron and this option is no longer needed. We suggest not to use this option to disable the firewall panel from now on.

enable_vpn

(Deprecated)

Default: True

Enables the VPN panel. VPN panel will be enabled when this option is True and your Neutron deployment supports VPNaaS. If you want to disable VPN panel even when your Neutron supports VPNaaS, set it to False.

This option is now marked as "deprecated" and will be removed in Kilo or later release. The VPN panel is now enabled only when VPNaaS feature is available in Neutron and this option is no longer needed. We suggest not to use this option to disable the VPN panel from now on.

profile_support

Default: None

This option specifies a type of network port profile support. Currently the available value is either None or "cisco". None means to disable port profile support. cisco can be used with Neutron Cisco plugins.

supported_provider_types

2014.2(Juno)

Default: ["*"]

For use with the provider network extension. Use this to explicitly set which provider network types are supported. Only the network types in this list will be available to choose from when creating a network. Network types include local, flat, vlan, gre, and vxlan. By default all provider network types will be available to choose from.

Example: ['local', 'flat', 'gre']

supported_vnic_types

2015.1(Kilo)

Default ['*']

For use with the port binding extension. Use this to explicitly set which VNIC types are supported; only those listed will be shown when creating or editing a port. VNIC types include normal, direct and macvtap. By default all VNIC types will be available to choose from.

Example ['normal', 'direct']

To disable VNIC type selection, set an empty list or None.

segmentation_id_range

2014.2(Juno)

Default: {}

For use with the provider network extension. This is a dictionary where each key is a provider network type and each value is a list containing two numbers. The first number is the minimum segmentation ID that is valid. The second number is the maximum segmentation ID. Pertains only to the vlan, gre, and vxlan network types. By default this option is not provided and each minimum and maximum value will be the default for the provider network type.

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

enable_fip_topology_check

Default: True

The Default Neutron implementation needs a router with a gateway to associate a FIP. So by default a topology check will be performed by horizon to list only VM ports attached to a network which is itself attached to a router with an external gateway. This is to prevent from setting a FIP to a port which will fail with an error. Some Neutron vendors do not require it. Some can even attach a FIP to any port (e.g.: OpenContrail) owned by a tenant. Set to False if you want to be able to associate a FIP to an instance on a subnet with no router if your Neutron backend allows it.

8.0.0(Liberty)

default_ipv4_subnet_pool_label

8.0.0(Liberty)

Default: None (Disabled)

Neutron can be configured with a default Subnet Pool to be used for IPv4 subnet-allocation. Specify the label you wish to display in the Address pool selector on the create subnet step if you want to use this feature.

This option is now marked as "deprecated" and will be removed in Newton or a later release. If there exists a default Subnet Pool it will be automatically detected through the Neutron API and the label will be set to the name of the default Subnet Pool.

default_ipv6_subnet_pool_label

8.0.0(Liberty)

Default: None (Disabled)

Neutron can be configured with a default Subnet Pool to be used for IPv6 subnet-allocation. Specify the label you wish to display in the Address pool selector on the create subnet step if you want to use this feature.

When using Liberty Neutron you must set this to enable IPv6 Prefix Delegation in a PD-capable environment.

This option is now marked as "deprecated" and will be removed in Newton or a later release. If there exists a default Subnet Pool it will be automatically detected through the Neutron API and the label will be set to the name of the default Subnet Pool.

OPENSTACK_SSL_CACERT

2013.2(Havana)

Default: None

When unset or set to None the default CA certificate on the system is used for SSL verification.

When set with the path to a custom CA certificate file, this overrides use of the default system CA certificate. This custom certificate is used to verify all connections to openstack services when making API calls.

OPENSTACK_SSL_NO_VERIFY

2012.2(Folsom)

Default: False

Disable SSL certificate checks in the OpenStack clients (useful for self-signed certificates).

OPENSTACK_TOKEN_HASH_ALGORITHM

2014.2(Juno)

Default: "md5"

The hash algorithm to use for authentication tokens. This must match the hash algorithm that the identity (Keystone) server and the auth_token middleware are using. Allowed values are the algorithms supported by Python's hashlib library.

OPENSTACK_TOKEN_HASH_ENABLED

8.0.0(Liberty)

Default: True

Hashing tokens from Keystone keeps the Horizon session data smaller, but it doesn't work in some cases when using PKI tokens. Uncomment this value and set it to False if using PKI tokens and there are 401 errors due to token hashing.

POLICY_FILES

2013.2(Havana)

Default: {'identity': 'keystone_policy.json', 'compute': 'nova_policy.json'}

This should essentially be the mapping of the contents of POLICY_FILES_PATH to service types. When policy.json files are added to POLICY_FILES_PATH, they should be included here too.

POLICY_FILES_PATH

2013.2(Havana)

Default: os.path.join(ROOT_PATH, "conf")

Specifies where service based policy files are located. These are used to define the policy rules actions are verified against.

SESSION_TIMEOUT

2013.2(Havana)

Default: "3600"

This SESSION_TIMEOUT is a method to supercede the token timeout with a shorter horizon session timeout (in seconds). So if your token expires in 60 minutes, a value of 1800 will log users out after 30 minutes.

SAHARA_AUTO_IP_ALLOCATION_ENABLED

Default: False

This setting notifies the Data Processing (Sahara) system whether or not automatic IP allocation is enabled. You would want to set this to True if you were running Nova Networking with auto_assign_floating_ip = True.

TROVE_ADD_USER_PERMS and TROVE_ADD_DATABASE_PERMS

2013.2(Havana)

Default: []

Trove user and database extension support. By default, support for creating users and databases on database instances is turned on. To disable these extensions set the permission to something unusable such as [!].

WEBROOT

2015.1(Kilo)

Default: "/"

Specifies the location where the access to the dashboard is configured in the web server.

For example, if you're accessing the Dashboard via https://<your server>/dashboard, you would set this to "/dashboard/".

Note

Additional settings may be required in the config files of your webserver of choice. For example to make "/dashboard/" the web root in Apache, the "sites-available/horizon.conf" requires a couple of additional aliases set:

Alias /dashboard/static %HORIZON_DIR%/static

Alias /dashboard/media %HORIZON_DIR%/openstack_dashboard/static

Apache also requires changing your WSGIScriptAlias to reflect the desired path. For example, you'd replace / with /dashboard for the alias.

STATIC_ROOT

8.0.0(Liberty)

Default: <path_to_horizon>/static

The absolute path to the directory where static files are collected when collectstatic is run.

For more information see: https://docs.djangoproject.com/en/1.7/ref/settings/#static-root

STATIC_URL

8.0.0(Liberty)

Default: /static/

URL that refers to files in STATIC_ROOT.

By default this value is WEBROOT/static/.

This value can be changed from the default. When changed, the alias in your webserver configuration should be updated to match.

Note

The value for STATIC_URL must end in '/'.

This value is also available in the scss namespace with the variable name $static_url. Make sure you run python manage.py collectstatic and python manage.py compress after any changes to this value in settings.py.

For more information see: https://docs.djangoproject.com/en/1.7/ref/settings/#static-url

DISALLOW_IFRAME_EMBED

8.0.0(Liberty)

Default: True

This setting can be used to defend against Clickjacking and prevent Horizon from being embedded within an iframe. Legacy browsers are still vulnerable to a Cross-Frame Scripting (XFS) vulnerability, so this option allows extra security hardening where iframes are not used in deployment. When set to true, a "frame-buster" script is inserted into the template header that prevents the web page from being framed and therefore defends against clickjacking.

For more information see: http://tinyurl.com/anticlickjack

Note

If your deployment requires the use of iframes, you can set this setting to False to exclude the frame-busting code and allow iframe embedding.

OPENSTACK_NOVA_EXTENSIONS_BLACKLIST

8.0.0(Liberty)

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.

Django Settings (Partial)

Warning

This is not meant to be anywhere near a complete list of settings for Django. You should always consult the upstream documentation, especially with regards to deployment considerations and security best-practices.

There are a few key settings you should be aware of for development and the most basic of deployments. Further recommendations can be found in the Deploying Horizon section of this documentation.

ALLOWED_HOSTS

2013.2(Havana)

Default: ['localhost']

This list should contain names (or IP addresses) of the host running the dashboard; if it's being accessed via name, the DNS name (and probably short-name) should be added, if it's accessed via IP address, that should be added. The setting may contain more than one entry.

Note

ALLOWED_HOSTS is required. If Horizon is running in production (DEBUG is False), set this with the list of host/domain names that the application can serve. For more information see: https://docs.djangoproject.com/en/dev/ref/settings/#allowed-hosts

DEBUG and TEMPLATE_DEBUG

2011.2(Cactus)

Default: True

Controls whether unhandled exceptions should generate a generic 500 response or present the user with a pretty-formatted debug information page.

This setting should always be set to False for production deployments as the debug page can display sensitive information to users and attackers alike.

SECRET_KEY

2012.1(Essex)

This should absolutely be set to a unique (and secret) value for your deployment. Unless you are running a load-balancer with multiple Horizon installations behind it, each Horizon instance should have a unique secret key.

Note

Setting a custom secret key: You can either set it to a specific value or you can let Horizon generate a default secret key that is unique on this machine, regardless of the amount of Python WSGI workers (if used behind Apache+mod_wsgi). However, there may be situations where you would want to set this explicitly, e.g. when multiple dashboard instances are distributed on different machines (usually behind a load-balancer). Either you have to make sure that a session gets all requests routed to the same dashboard instance or you set the same SECRET_KEY for all of them.

From horizon.utils import secret_key:

SECRET_KEY = secret_key.generate_or_read_from_file(
os.path.join(LOCAL_PATH, '.secret_key_store'))

The local_settings.py.example file includes a quick-and-easy way to generate a secret key for a single installation.

SECURE_PROXY_SSL_HEADER, CSRF_COOKIE_SECURE and SESSION_COOKIE_SECURE

2013.1(Grizzly)

These three settings should be configured if you are deploying Horizon with SSL. The values indicated in the default local_settings.py.example file are generally safe to use.

When CSRF_COOKIE_SECURE or SESSION_COOKIE_SECURE are set to True, these attributes help protect the session cookies from cross-site scripting.

ADD_INSTALLED_APPS

2015.1(Kilo)

A list of Django applications to be prepended to the INSTALLED_APPS setting. Allows extending the list of installed applications without having to override it completely.

Pluggable Settings

Horizon allows dashboards, panels and panel groups to be added without modifying the default settings. Pluggable settings are a mechanism to allow settings to be stored in separate files. Those files are read at startup and used to modify the default settings.

The default location for the dashboard configuration files is openstack_dashboard/enabled, with another directory, openstack_dashboard/local/enabled for local overrides. Both sets of files will be loaded, but the settings in openstack_dashboard/local/enabled will overwrite the default ones. The settings are applied in alphabetical order of the filenames. If the same dashboard has configuration files in enabled and local/enabled, the local name will be used. Note, that since names of python modules can't start with a digit, the files are usually named with a leading underscore and a number, so that you can control their order easily.

Before we describe the specific use cases, the following keys can be used in any pluggable settings file:

ADD_EXCEPTIONS

2014.1(Icehouse)

A dictionary of exception classes to be added to HORIZON['exceptions'].

ADD_INSTALLED_APPS

2014.1(Icehouse)

A list of applications to be prepended to INSTALLED_APPS. This is needed to expose static files from a plugin.

ADD_ANGULAR_MODULES

2014.2(Juno)

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

ADD_JS_FILES

2014.2(Juno)

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 ADD_ANGULAR_MODULES and therefore need to be included in every page.

ADD_JS_SPEC_FILES

2015.1(Kilo)

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.

ADD_SCSS_FILES

8.0.0(Liberty)

A list of scss files to be included in the compressed set of files that are loaded on every page. We recommend one scss file per dashboard, use @import if you need to include additional scss files for panels.

AUTO_DISCOVER_STATIC_FILES

8.0.0(Liberty)

If set to True, JavaScript files and static angular html template files will be automatically discovered from the static folder in each apps listed in ADD_INSTALLED_APPS.

JavaScript source files will be ordered based on naming convention: files with extension .module.js listed first, followed by other JavaScript source files.

JavaScript files for testing will also be ordered based on naming convention: files with extension .mock.js listed first, followed by files with extension .spec.js.

If ADD_JS_FILES and/or ADD_JS_SPEC_FILES are also specified, files manually listed there will be appended to the auto-discovered files.

DISABLED

2014.1(Icehouse)

If set to True, this settings file will not be added to the settings.

UPDATE_HORIZON_CONFIG

2014.2(Juno)

A dictionary of values that will replace the values in HORIZON_CONFIG.

Pluggable Settings for Dashboards

2014.1(Icehouse)

The following keys are specific to registering a dashboard:

DASHBOARD

2014.1(Icehouse)

The slug of the dashboard to be added to HORIZON['dashboards']. Required.

DEFAULT

2014.1(Icehouse)

If set to True, this dashboard will be set as the default dashboard.

Examples

To disable a dashboard locally, create a file openstack_dashboard/local/enabled/_40_dashboard-name.py with the following content:

DASHBOARD = '<dashboard-name>'
DISABLED = True

To add a Tuskar-UI (Infrastructure) dashboard, you have to install it, and then create a file openstack_dashboard/local/enabled/_50_tuskar.py with:

from tuskar_ui import exceptions

DASHBOARD = 'infrastructure'
ADD_INSTALLED_APPS = [
    'tuskar_ui.infrastructure',
]
ADD_EXCEPTIONS = {
    'recoverable': exceptions.RECOVERABLE,
    'not_found': exceptions.NOT_FOUND,
    'unauthorized': exceptions.UNAUTHORIZED,
}

Pluggable Settings for Panels

2014.1(Icehouse)

The following keys are specific to registering or removing a panel:

PANEL

2014.1(Icehouse)

The slug of the panel to be added to HORIZON_CONFIG. Required.

PANEL_DASHBOARD

2014.1(Icehouse)

The slug of the dashboard the PANEL associated with. Required.

PANEL_GROUP

2014.1(Icehouse)

The slug of the panel group the PANEL is associated with. If you want the panel to show up without a panel group, use the panel group "default".

DEFAULT_PANEL

2014.1(Icehouse)

If set, it will update the default panel of the PANEL_DASHBOARD.

ADD_PANEL

2014.1(Icehouse)

Python panel class of the PANEL to be added.

REMOVE_PANEL

2014.1(Icehouse)

If set to True, the PANEL will be removed from PANEL_DASHBOARD/PANEL_GROUP.

Examples

To add a new panel to the Admin panel group in Admin dashboard, create a file openstack_dashboard/local/enabled/_60_admin_add_panel.py with the following content:

PANEL = 'plugin_panel'
PANEL_DASHBOARD = 'admin'
PANEL_GROUP = 'admin'
ADD_PANEL = 'test_panels.plugin_panel.panel.PluginPanel'

To remove Info panel from Admin panel group in Admin dashboard locally, create a file openstack_dashboard/local/enabled/_70_admin_remove_panel.py with the following content:

PANEL = 'info'
PANEL_DASHBOARD = 'admin'
PANEL_GROUP = 'admin'
REMOVE_PANEL = True

To change the default panel of Admin dashboard to Instances panel, create a file openstack_dashboard/local/enabled/_80_admin_default_panel.py with the following content:

PANEL = 'instances'
PANEL_DASHBOARD = 'admin'
PANEL_GROUP = 'admin'
DEFAULT_PANEL = 'instances'

Pluggable Settings for Panel Groups

2014.1(Icehouse)

The following keys are specific to registering a panel group:

PANEL_GROUP

2014.1(Icehouse)

The slug of the panel group to be added to HORIZON_CONFIG. Required.

PANEL_GROUP_NAME

2014.1(Icehouse)

The display name of the PANEL_GROUP. Required.

PANEL_GROUP_DASHBOARD

2014.1(Icehouse)

The slug of the dashboard the PANEL_GROUP associated with. Required.

Examples

To add a new panel group to the Admin dashboard, create a file openstack_dashboard/local/enabled/_90_admin_add_panel_group.py with the following content:

PANEL_GROUP = 'plugin_panel_group'
PANEL_GROUP_NAME = 'Plugin Panel Group'
PANEL_GROUP_DASHBOARD = 'admin'