Configuration Options¶
The functionality and features of CKAN can be modified using many different configuration options. These are generally set in the CKAN configuration file, but some of them can also be set via Environment variables or at runtime.
Environment variables¶
Some of the CKAN configuration options can be defined as Environment variables on the server operating system.
These are generally low-level critical settings needed when setting up the application, like the database connection, the Solr server URL, etc. Sometimes it can be useful to define them as environment variables to automate and orchestrate deployments without having to first modify the CKAN configuration file.
These options are only read at startup time to update the config
object used by CKAN,
but they won’t be accessed any more during the lifetime of the application.
CKAN environment variable names match the options in the configuration file, but they are always uppercase and prefixed with CKAN_ (this prefix is added even if the corresponding option in the ini file does not have it), and replacing dots with underscores.
This is the list of currently supported environment variables, please refer to the entries in the CKAN configuration file section below for more details about each one:
CONFIG_FROM_ENV_VARS = {
'sqlalchemy.url': 'CKAN_SQLALCHEMY_URL',
'ckan.datastore.write_url': 'CKAN_DATASTORE_WRITE_URL',
'ckan.datastore.read_url': 'CKAN_DATASTORE_READ_URL',
'ckan.redis.url': 'CKAN_REDIS_URL',
'solr_url': 'CKAN_SOLR_URL',
'solr_user': 'CKAN_SOLR_USER',
'solr_password': 'CKAN_SOLR_PASSWORD',
'ckan.site_id': 'CKAN_SITE_ID',
'ckan.site_url': 'CKAN_SITE_URL',
'ckan.storage_path': 'CKAN_STORAGE_PATH',
'ckan.datapusher.url': 'CKAN_DATAPUSHER_URL',
'smtp.server': 'CKAN_SMTP_SERVER',
'smtp.starttls': 'CKAN_SMTP_STARTTLS',
'smtp.user': 'CKAN_SMTP_USER',
'smtp.password': 'CKAN_SMTP_PASSWORD',
'smtp.mail_from': 'CKAN_SMTP_MAIL_FROM',
'ckan.max_resource_size': 'CKAN_MAX_UPLOAD_SIZE_MB'
}
Updating configuration options during runtime¶
CKAN configuration options are generally defined before starting the web application (either in the CKAN configuration file or via Environment variables).
A limited number of configuration options can also be edited during runtime. This can be done on the
administration interface or using the config_option_update()
API action. Only sysadmins can edit these runtime-editable configuration options. Changes made to these configuration options will be stored in the database and persisted when the server is restarted.
Extensions can add (or remove) configuration options to the ones that can be edited at runtime. For more details on how to do this check Making configuration options runtime-editable.
CKAN configuration file¶
From CKAN 2.9, by default, the configuration file is located at
/etc/ckan/default/ckan.ini
. Previous releases the configuration file(s)
were: /etc/ckan/default/development.ini
or
/etc/ckan/default/production.ini
. This section documents all of the config
file settings, for reference.
Note
After editing your config file, you need to restart your webserver for the changes to take effect.
Note
Unless otherwise noted, all configuration options should be set inside
the [app:main]
section of the config file (i.e. after the [app:main]
line):
[DEFAULT]
...
[server:main]
use = egg:Paste#http
host = 0.0.0.0
port = 5000
# This setting will not work, because it's outside of [app:main].
ckan.site_logo = /images/masaq.png
[app:main]
# This setting will work.
ckan.plugins = stats text_view recline_view
If the same option is set more than once in your config file, the last setting given in the file will override the others.
General Settings¶
debug¶
Example:
debug = False
Default value: False
This enables the Flask-DebugToolbar in the web interface, makes Webassets serve unminified JS and CSS files, and enables CKAN templates’ debugging features.
You will need to ensure the Flask-DebugToolbar
python package is installed,
by activating your ckan virtual environment and then running:
pip install -r /usr/lib/ckan/default/src/ckan/dev-requirements.txt
If you are running CKAN on Apache, you must change the WSGI
configuration to run a single process of CKAN. Otherwise
the execution will fail with: AssertionError: The EvalException
middleware is not usable in a multi-process environment
. Eg. change:
WSGIDaemonProcess ckan_default display-name=ckan_default processes=2 threads=15
to
WSGIDaemonProcess ckan_default display-name=ckan_default threads=15
Warning
This option should be set to False
for a public site.
With debug mode enabled, a visitor to your site could execute malicious
commands.
ckan.legacy_route_mappings¶
Example:
ckan.legacy_route_mappings = {"home": "home.index", "about": "home.about",
"search": "dataset.search"}
Default value: {"home": "home.index", "about": "home.about"}
This can be used when using an extension that is still using old (Pylons-based) route names to maintain compatibility.
Warning
This configuration will be removed when migration to Flask is completed. Please update the extension code to use the new Flask-based route names.
Development Settings¶
ckan.devserver.host¶
Example:
ckan.devserver.host = 0.0.0.0
Default value: localhost
Host name to use when running the development server.
ckan.devserver.port¶
Example:
ckan.devserver.port = 5005
Default value: 5000
Port to use when running the development server.
ckan.devserver.threaded¶
Example:
ckan.devserver.threaded = true
Default value: False
Controls whether the development server should handle each request in a separate thread.
ckan.devserver.multiprocess¶
Example:
ckan.devserver.multiprocess = 8
Default value: 1
If greater than 1 then the developmente server will handle each request in a new process, up to this maximum number of concurrent processes.
ckan.devserver.watch_patterns¶
Example:
ckan.devserver.watch_patterns = mytheme/**/*.yaml mytheme/**/*.json
Default value: None
A list of files the reloader should watch to restart the development server, in addition to the Python modules (for example configuration files)
ckan.devserver.ssl_cert¶
Example:
ckan.devserver.ssl_cert = path/to/host.cert
Default value: None (SSL disabled)
Path to a certificate file that will be used to enable SSL (ie to serve the local development server on https://localhost:5000). You can generate a self-signed certificate and key (see ckan.devserver.ssl_key) running the following commands:
openssl genrsa 2048 > host.key
chmod 400 host.key
openssl req -new -x509 -nodes -sha256 -days 3650 -key host.key > host.cert
Alternatively, setting this option to adhoc
will automatically generate a new
certificate file (on each server reload, which means that you’ll get a browser warning
about the certificate on each reload).
ckan.devserver.ssl_key¶
Example:
ckan.devserver.ssl_key = path/to/host.key
Default value: None (SSL disabled)
Path to a certificate file that will be used to enable SSL (ie to serve the
local development server on https://localhost:5000). See ckan.devserver.ssl_cert
for more details. This option also supports the adhoc
value, with the same caveat.
Repoze.who Settings¶
who.timeout¶
Example:
who.timeout = 3600
Default value: None
This defines how long (in seconds) until a user is logged out after a period of inactivity. If the setting isn’t defined, the session doesn’t expire. Not active by default.
who.httponly¶
Default value: True
This determines whether the HttpOnly flag will be set on the repoze.who
authorization cookie. The default in the absence of the setting is True
.
For enhanced security it is recommended to use the HttpOnly flag and not set
this to False
, unless you have a good reason for doing so.
who.secure¶
Example:
who.secure = True
Default value: False
This determines whether the secure flag will be set for the repoze.who
authorization cookie. If True
, the cookie will be sent over HTTPS. The
default in the absence of the setting is False
.
who.samesite¶
Example:
who.samesite = Strict
Default value: Lax
This determines whether the SameSite flag will be set for the repoze.who
authorization cookie. Allowed values are Lax
(the default one), Strict
or None
.
If set to None
, who.secure
must be set to True
.
Database Settings¶
sqlalchemy.url¶
Example:
sqlalchemy.url = postgres://tester:pass@localhost/ckantest3
This defines the database that CKAN is to use. The format is:
sqlalchemy.url = postgres://USERNAME:PASSWORD@HOST/DBNAME
sqlalchemy.*¶
Example:
sqlalchemy.pool_pre_ping=True
sqlalchemy.pool_size=10
sqlalchemy.max_overflow=20
Custom sqlalchemy config parameters used to establish the main database connection.
To get the list of all the available properties check the SQLAlchemy documentation
ckan.datastore.write_url¶
Example:
ckan.datastore.write_url = postgresql://ckanuser:pass@localhost/datastore
The database connection to use for writing to the datastore (this can be ignored if you’re not using the DataStore extension). Note that the database used should not be the same as the normal CKAN database. The format is the same as in sqlalchemy.url.
ckan.datastore.read_url¶
Example:
ckan.datastore.read_url = postgresql://readonlyuser:pass@localhost/datastore
The database connection to use for reading from the datastore (this can be ignored if you’re not using the DataStore extension). The database used must be the same used in ckan.datastore.write_url, but the user should be one with read permissions only. The format is the same as in sqlalchemy.url.
ckan.datastore.sqlalchemy.*¶
Example:
ckan.datastore.sqlalchemy.pool_size=10
ckan.datastore.sqlalchemy.max_overflow=20
Custom sqlalchemy config parameters used to establish the DataStore database connection.
To get the list of all the available properties check the SQLAlchemy documentation
ckan.datastore.default_fts_lang¶
Example:
ckan.datastore.default_fts_lang = english
Default value: english
This can be ignored if you’re not using the DataStore extension.
The default language used when creating full-text search indexes and querying them. It can be overwritten by the user by passing the “lang” parameter to “datastore_search” and “datastore_create”.
ckan.datastore.default_fts_index_method¶
Example:
ckan.datastore.default_fts_index_method = gist
Default value: gist
This can be ignored if you’re not using the DataStore extension.
The default method used when creating full-text search indexes. Currently it can be “gin” or “gist”. Refer to PostgreSQL’s documentation to understand the characteristics of each one and pick the best for your instance.
ckan.datastore.sqlsearch.enabled¶
Example:
ckan.datastore.sqlsearch.enabled = False
Default value: True
This option allows you to disable the datastore_search_sql action function, and corresponding API endpoint if you do not wish it to be activated.
This action function has protections from abuse including:
- parsing of the query to prevent unsafe functions from being called, see ckan.datastore.sqlsearch.allowed_functions_file
- parsing of the query to prevent multiple statements
- prevention of data modification by using a read-only database role
- use of
explain
to resolve tables accessed in the query to check against user permissions - use of a statement timeout to prevent queries from running indefinitely
These protections offer some safety but are not designed to prevent all types of abuse. Depending on the sensitivity of private data in your datastore and the likelihood of abuse of your site you may choose to disable this action function or restrict its use with a IAuthFunctions
plugin.
ckan.datastore.search.rows_default¶
Example:
ckan.datastore.search.rows_default = 1000
Default value: 100
Default number of rows returned by datastore_search
, unless the client
specifies a different limit
(up to ckan.datastore.search.rows_max
).
NB this setting does not affect datastore_search_sql
.
ckan.datastore.search.rows_max¶
Example:
ckan.datastore.search.rows_max = 1000000
Default value: 32000
Maximum allowed value for the number of rows returned by the datastore.
Specifically this limits:
datastore_search
’slimit
parameter.datastore_search_sql
queries have this limit inserted.
ckan.datastore.sqlsearch.allowed_functions_file¶
Example:
ckan.datastore.sqlsearch.allowed_functions_file = /path/to/my_allowed_functions.txt
Default value: File included in the source code at ckanext/datastore/allowed_functions.txt
.
Allows to define the path to a text file listing the SQL functions that should be allowed to run
on queries sent to the datastore_search_sql()
function
(if enabled, see ckan.datastore.sqlsearch.enabled). Function names should be listed one on
each line, eg:
abbrev
abs
abstime
...
Site Settings¶
ckan.site_url¶
Example:
ckan.site_url = http://scotdata.ckan.net
Default value: (an explicit value is mandatory)
Set this to the URL of your CKAN site. Many CKAN features that need an absolute URL to your site use this setting.
This setting should only contain the protocol (e.g. http://
), host (e.g.
www.example.com
) and (optionally) the port (e.g. :8080
). In particular,
if you have mounted CKAN at a path other than /
then the mount point must
not be included in ckan.site_url
. Instead, you need to set
ckan.root_path.
Important
It is mandatory to complete this setting
Warning
This setting should not have a trailing / on the end.
apikey_header_name¶
Example:
apikey_header_name = API-KEY
Default value: X-CKAN-API-Key
& Authorization
This allows another http header to be used to provide the CKAN API key. This is useful if network infrastructure blocks the Authorization header and X-CKAN-API-Key
is not suitable.
ckan.cache_expires¶
Example:
ckan.cache_expires = 2592000
Default value: 0
This sets Cache-Control
header’s max-age value.
ckan.cache_enabled¶
Example:
ckan.cache_enabled = True
Default value: False
This enables cache control headers on all requests. If the user is not logged in and there is no session data a Cache-Control: public
header will be added. For all other requests the Cache-control: private
header will be added.
ckan.use_pylons_response_cleanup_middleware¶
Example:
ckan.use_pylons_response_cleanup_middleware = true
Default value: true
This enables middleware that clears the response string after it has been sent. This helps CKAN’s memory management if CKAN repeatedly serves very large requests.
ckan.mimetype_guess¶
Example:
ckan.mimetype_guess = file_ext
Default value: file_ext
There are three options for guessing the mimetype of uploaded or linked resources: file_ext, file_contents, None.
file_ext
will guess the mimetype by the url first, then the file extension.
file_contents
will guess the mimetype by the file itself, this tends to be inaccurate.
None
will not store the mimetype for the resource.
ckan.static_max_age¶
Example:
ckan.static_max_age = 2592000
Default value: 3600
Controls CKAN static files’ cache max age, if we’re serving and caching them.
ckan.tracking_enabled¶
Example:
ckan.tracking_enabled = True
Default value: False
This controls if CKAN will track the site usage. For more info, read Page View Tracking.
ckan.valid_url_schemes¶
Example:
ckan.valid_url_schemes = http https ftp sftp
Default value: http https ftp
Controls what uri schemes are rendered as links.
ckan.requests.timeout¶
Example:
ckan.requests.timeout = 3
Default value: 5
Default timeout for GET requests performed by the requests library.
ckan.resource_proxy.timeout¶
Example:
ckan.resource_proxy.timeout = 5
Default value: 10
Default timeout for GET requests performed in the resourceproxy plugin by the requests library.
Authorization Settings¶
More information about how authorization works in CKAN can be found the Organizations and authorization section.
ckan.auth.anon_create_dataset¶
Example:
ckan.auth.anon_create_dataset = False
Default value: False
Allow users to create datasets without registering and logging in.
ckan.auth.create_unowned_dataset¶
Example:
ckan.auth.create_unowned_dataset = False
Default value: True
Allow the creation of datasets not owned by any organization.
ckan.auth.create_dataset_if_not_in_organization¶
Example:
ckan.auth.create_dataset_if_not_in_organization = False
Default value: True
Allow users who are not members of any organization to create datasets,
default: true. create_unowned_dataset
must also be True, otherwise
setting create_dataset_if_not_in_organization
to True is meaningless.
ckan.auth.user_create_groups¶
Example:
ckan.auth.user_create_groups = True
Default value: False
Allow users to create groups.
ckan.auth.user_create_organizations¶
Example:
ckan.auth.user_create_organizations = False
Default value: True
Allow users to create organizations.
ckan.auth.user_delete_groups¶
Example:
ckan.auth.user_delete_groups = False
Default value: True
Allow users to delete groups.
ckan.auth.user_delete_organizations¶
Example:
ckan.auth.user_delete_organizations = False
Default value: True
Allow users to delete organizations.
ckan.auth.create_user_via_api¶
Example:
ckan.auth.create_user_via_api = False
Default value: False
Allow new user accounts to be created via the API by anyone. When False
only sysadmins are authorised.
ckan.auth.create_user_via_web¶
Example:
ckan.auth.create_user_via_web = True
Default value: True
Allow new user accounts to be created via the Web.
ckan.auth.roles_that_cascade_to_sub_groups¶
Example:
ckan.auth.roles_that_cascade_to_sub_groups = admin editor
Default value: admin
Makes role permissions apply to all the groups or organizations down the hierarchy from the groups or organizations that the role is applied to.
e.g. a particular user has the ‘admin’ role for group ‘Department of Health’. If you set the value of this option to ‘admin’ then the user will automatically have the same admin permissions for the child groups of ‘Department of Health’ such as ‘Cancer Research’ (and its children too and so on).
ckan.auth.public_user_details¶
Example:
ckan.auth.public_user_details = False
Default value: True
Restricts anonymous access to user information. If is set to False
accessing users details when not logged in will raise a Not Authorized
exception.
Note
This setting should be used when user registration is disabled (ckan.auth.create_user_via_web = False
), otherwise users
can just create an account to see other users details.
ckan.auth.public_activity_stream_detail¶
Example:
ckan.auth.public_activity_stream_detail = True
Default value: False
(however the default config file template sets it to True
)
Restricts access to ‘view this version’ and ‘changes’ in the Activity Stream pages. These links provide users with the full edit history of datasets etc - what they showed in the past and the diffs between versions. If this option is set to False
then only admins (e.g. whoever can edit the dataset) can see this detail. If set to True
, anyone can see this detail (assuming they have permission to view the dataset etc).
ckan.auth.allow_dataset_collaborators¶
Example:
ckan.auth.allow_dataset_collaborators = True
Default value: False
Enables or disable collaborators in individual datasets. If True
, in addition to the standard organization based permissions, users can be added as collaborators to individual datasets with different roles, regardless of the organization they belong to. For more information, check the documentation on Dataset collaborators.
Warning
If this setting is turned off in a site where there already were collaborators created, you must reindex all datasets to update the permission labels, in order to prevent access to private datasets to the previous collaborators.
ckan.auth.allow_admin_collaborators¶
Example:
ckan.auth.allow_admin_collaborators = True
Default value: False
Allows dataset collaborators to have the “Admin” role, allowing them to add more collaborators or remove existing ones. By default collaborators can only be managed by administrators of the organization the dataset belongs to. For more information, check the documentation on Dataset collaborators.
Warning
If this setting is turned off in a site where admin collaborators have been already created, existing collaborators with role “admin” will no longer be able to add or remove collaborators, but they will still be able to edit and access the datasets that they are assinged to.
ckan.auth.allow_collaborators_to_change_owner_org¶
Example:
ckan.auth.allow_collaborators_to_change_owner_org = True
Default value: False
Allows dataset collaborators to change the owner organization of the datasets they are collaborators on. Defaults to False, meaning that collaborators with role admin or editor can edit the dataset metadata but not the organization field.
ckan.auth.create_default_api_keys¶
Example:
ckan.auth.create_default_api_keys = True
Default value: False
Determines if a an API key should be automatically created for every user when creating a user account. If set to False (the default value), users can manually create an API token from their profile instead. See Authentication and API tokens: for more details.
API Token Settings¶
api_token.nbytes¶
Example:
api_token.nbytes = 20
Default value: 32
Number of bytes used to generate unique id for API Token.
api_token.jwt.encode.secret¶
Example:
api_token.jwt.encode.secret = file:/path/to/private/key
Default value: same as beaker.session.secret
config option with string:
type.
A key suitable for the chosen algorithm(api_token.jwt.algorithm
):
- for asymmetric algorithms(RS256): path to private key with
file:
prefix. I.efile:/path/private/key
- for symmetric algorithms(HS256): plain string, sufficiently long for security with
string:
prefix. I.estring:123abc...
Note
For symmetric algorithms this value must be identical to api_token.jwt.decode.secret. The algorithm used is controlled by the api_token.jwt.algorithm option.
Value must have prefix, which defines its type. Supported prefixes are:
string:
- Plain string, will be used as is.file:
- Path to file. Content of the file will be used as key.
api_token.jwt.decode.secret¶
Example:
api_token.jwt.decode.secret = file:/path/to/public/key.pub
Default value: same as beaker.session.secret
config option with string:
type.
A key suitable for the chosen algorithm(api_token.jwt.algorithm
):
- for asymmetric algorithms(RS256): path to public key with
file:
prefix. I.efile:/path/public/key.pub
- for symmetric algorithms(HS256): plain string, sufficiently long for security with
string:
prefix. I.estring:123abc...
Note
For symmetric algorithms this value must be identical to api_token.jwt.encode.secret. The algorithm used is defined by the api_token.jwt.algorithm option.
Value must have prefix, which defines it’s type. Supported prefixes are:
string:
- Plain string, will be used as is.file:
- Path to file. Content of the file will be used as key.
api_token.jwt.algorithm¶
Example:
api_token.jwt.algorithm = RS256
Default value: HS256
Algorithm to sign the token with, e.g. “ES256”, “RS256”
Depending on the algorithm, additional restrictions may apply to api_token.jwt.decode.secret and api_token.jwt.encode.secret. For example, RS256 implies that api_token.jwt.encode.secret contains RSA private key and api_token.jwt.decode.secret contains public key. Whereas HS256(default value) requires both api_token.jwt.decode.secret and api_token.jwt.encode.secret to have exactly the same value.
Search Settings¶
ckan.site_id¶
Example:
ckan.site_id = my_ckan_instance
CKAN uses Solr to index and search packages. The search index is linked to the value of the ckan.site_id
, so if you have more than one
CKAN instance using the same solr_url, they will each have a separate search index as long as their ckan.site_id
values are different. If you are only running
a single CKAN instance then this can be ignored.
Note, if you change this value, you need to rebuild the search index.
solr_url¶
Example:
solr_url = http://solr.okfn.org:8983/solr/ckan-schema-2.0
Default value: http://127.0.0.1:8983/solr
This configures the Solr server used for search. The Solr schema found at that URL must be one of the ones in ckan/config/solr
(generally the most recent one). A check of the schema version number occurs when CKAN starts.
Optionally, solr_user
and solr_password
can also be configured to specify HTTP Basic authentication details for all Solr requests.
Note
If you change this value, you need to rebuild the search index.
ckan.search.automatic_indexing¶
Example:
ckan.search.automatic_indexing = true
Default value: true
Make all changes immediately available via the search after editing or creating a dataset. Default is true. If for some reason you need the indexing to occur asynchronously, set this option to false.
Note
This is equivalent to explicitly load the synchronous_search
plugin.
ckan.search.solr_commit¶
Example:
ckan.search.solr_commit = false
Default value: true
Make ckan commit changes solr after every dataset update change. Turn this to false if on solr 4.0 and you have automatic (soft)commits enabled to improve dataset update/create speed (however there may be a slight delay before dataset gets seen in results).
ckan.search.show_all_types¶
Example:
ckan.search.show_all_types = dataset
Default value: false
Controls whether a search page (e.g. /dataset
) should also show
custom dataset types. The default is false
meaning that no search
page for any type will show other types. true
will show other types
on the /dataset
search page. Any other value (e.g. dataset
or
document
will be treated as a dataset type and that type’s search
page will show datasets of all types.
ckan.search.default_include_private¶
Example:
ckan.search.default_include_private = false
Default value: true
Controls whether the default search page (/dataset
) should include
private datasets visible to the current user or only public datasets
visible to everyone.
ckan.search.default_package_sort¶
Example:
ckan.search.default_package_sort = name asc
Default value: score desc, metadata_modified desc
Controls whether the default search page (/dataset
) should different
sorting parameter by default when the request does not specify sort.
search.facets.limit¶
Example:
search.facets.limit = 100
Default value: 50
Sets the default number of searched facets returned in a query.
search.facets.default¶
Example:
search.facets.default = 10
Default number of facets shown in search results. Default 10.
ckan.extra_resource_fields¶
Example:
ckan.extra_resource_fields = alt_url
Default value: None
List of the extra resource fields that would be used when searching.
ckan.search.rows_max¶
Example:
ckan.search.rows_max = 1000
Default value: 1000
Maximum allowed value for rows returned. Specifically this limits:
package_search
’srows
parametergroup_show
andorganization_show
’s number of datasets returned when specifyinginclude_datasets=true
ckan.group_and_organization_list_max¶
Example:
ckan.group_and_organization_list_max = 1000
Default value: 1000
Maximum number of groups/organizations returned when listing them. Specifically this limits:
group_list
’slimit
whenall_fields=false
organization_list
’slimit
whenall_fields=false
ckan.group_and_organization_list_all_fields_max¶
Example:
ckan.group_and_organization_list_all_fields_max = 100
Default value: 25
Maximum number of groups/organizations returned when listing them in detail. Specifically this limits:
group_list
’slimit
whenall_fields=true
organization_list
’slimit
whenall_fields=true
Redis Settings¶
ckan.redis.url¶
Example:
ckan.redis.url = redis://localhost:7000/1
Default value: redis://localhost:6379/0
URL to your Redis instance, including the database to be used.
New in version 2.7.
CORS Settings¶
Cross-Origin Resource Sharing (CORS) can be enabled and controlled with the following settings:
ckan.cors.origin_allow_all¶
Example:
ckan.cors.origin_allow_all = True
This setting must be present to enable CORS. If True, all origins will be allowed (the response header Access-Control-Allow-Origin is set to ‘*’). If False, only origins from the ckan.cors.origin_whitelist
setting will be allowed.
ckan.cors.origin_whitelist¶
Example:
ckan.cors.origin_whitelist = http://www.myremotedomain1.com http://myremotedomain1.com
A space separated list of allowable origins. This setting is used when ckan.cors.origin_allow_all = False
.
Plugins Settings¶
ckan.plugins¶
Example:
ckan.plugins = disqus datapreview googleanalytics follower
Default value: stats text_view recline_view
Specify which CKAN plugins are to be enabled.
Warning
If you specify a plugin but have not installed the code, CKAN will not start.
Format as a space-separated list of the plugin names. The plugin name is the key in the [ckan.plugins]
section of the extension’s setup.py
. For more information on plugins and extensions, see Extending guide.
Note
The order of the plugin names in the configuration file influences the order that CKAN will load the plugins in. As long as each plugin class is implemented in a separate Python module (i.e. in a separate Python source code file), the plugins will be loaded in the order given in the configuration file.
When multiple plugins are implemented in the same Python module, CKAN will process the plugins in the order that they’re given in the config file, but as soon as it reaches one plugin from a given Python module, CKAN will load all plugins from that Python module, in the order that the plugin classes are defined in the module.
For simplicity, we recommend implementing each plugin class in its own Python module.
Plugin loading order can be important, for example for plugins that add custom template files: templates found in template directories added earlier will override templates in template directories added later.
Todo
Fix CKAN’s plugin loading order to simply load all plugins in the order they’re given in the config file, regardless of which Python modules they’re implemented in.
ckanext.stats.cache_enabled¶
Example:
ckanext.stats.cache_enabled = True
Default value: True
This controls if we’ll use the 1 day cache for stats.
ckan.resource_proxy.max_file_size¶
Example:
ckan.resource_proxy.max_file_size = 1048576
Default value: 1048576
(1 MB)
This sets the upper file size limit for in-line previews. Increasing the value allows CKAN to preview larger files (e.g. PDFs) in-line; however, a higher value might cause time-outs, or unresponsive browsers for CKAN users with lower bandwidth. If left commented out, CKAN will default to 1 MB.
ckan.resource_proxy.chunk_size¶
Example:
ckan.resource_proxy.chunk_size = 8192
Default value: 4096
This sets size of the chunk to read and write when proxying. Raising this value might save some CPU cycles. It makes no sense to lower it below the page size, which is default.
Front-End Settings¶
ckan.site_title¶
Example:
ckan.site_title = Open Data Scotland
Default value: CKAN
This sets the name of the site, as displayed in the CKAN web interface.
ckan.site_description¶
Example:
ckan.site_description = The easy way to get, use and share data
Default value: (none)
This is for a description, or tag line for the site, as displayed in the header of the CKAN web interface.
ckan.site_intro_text¶
Example:
ckan.site_intro_text = Nice introductory paragraph about CKAN or the site in general.
Default value: (none)
This is for an introductory text used in the default template’s index page.
ckan.site_logo¶
Example:
ckan.site_logo = /images/ckan_logo_fullname_long.png
Default value: (none)
This sets the logo used in the title bar.
ckan.site_about¶
Example:
ckan.site_about = A _community-driven_ catalogue of _open data_ for the Greenfield area.
Default value:
<p>CKAN is the world’s leading open-source data portal platform.</p>
<p>CKAN is a complete out-of-the-box software solution that makes data
accessible and usable – by providing tools to streamline publishing, sharing,
finding and using data (including storage of data and provision of robust data
APIs). CKAN is aimed at data publishers (national and regional governments,
companies and organizations) wanting to make their data open and available.</p>
<p>CKAN is used by governments and user groups worldwide and powers a variety
of official and community data portals including portals for local, national
and international government, such as the UK’s <a href="http://data.gov.uk">data.gov.uk</a>
and the European Union’s <a href="http://publicdata.eu/">publicdata.eu</a>,
the Brazilian <a href="http://dados.gov.br/">dados.gov.br</a>, Dutch and
Netherland government portals, as well as city and municipal sites in the US,
UK, Argentina, Finland and elsewhere.</p>
<p>CKAN: <a href="http://ckan.org/">http://ckan.org/</a><br />
CKAN Tour: <a href="http://ckan.org/tour/">http://ckan.org/tour/</a><br />
Features overview: <a href="http://ckan.org/features/">http://ckan.org/features/</a></p>
Format tips:
- multiline strings can be used by indenting following lines
- the format is Markdown
Note
Whilst the default text is translated into many languages (switchable in the page footer), the text in this configuration option will not be translatable.
For this reason, it’s better to overload the snippet in home/snippets/about_text.html
. For more information, see Theming guide.
ckan.theme¶
Example:
ckan.theme = my_extension/my_custom_theme
Default value: css/main
With this option, instead of using the default css/main
asset with your theme, you can use your own.
ckan.favicon¶
Example:
ckan.favicon = http://okfn.org/wp-content/themes/okfn-master-wordpress-theme/images/favicon.ico
Default value: /images/icons/ckan.ico
This sets the site’s favicon. This icon is usually displayed by the browser in the tab heading and bookmark.
ckan.legacy_templates¶
Example:
ckan.legacy_templates = True
Default value: False
This controls if the legacy genshi templates are used.
Note
This is option is deprecated and has no effect any more.
ckan.datasets_per_page¶
Example:
ckan.datasets_per_page = 10
Default value: 20
This controls the pagination of the dataset search results page. This is the maximum number of datasets viewed per page of results.
package_hide_extras¶
Example:
package_hide_extras = my_private_field other_field
Default value: (empty)
This sets a space-separated list of extra field key values which will not be shown on the dataset read page.
Warning
While this is useful to e.g. create internal notes, it is not a security measure. The keys will still be available via the API and in revision diffs.
ckan.dumps_url¶
If there is a page which allows you to download a dump of the entire catalogue then specify the URL here, so that it can be advertised in the web interface. For example:
ckan.dumps_url = http://ckan.net/dump/
For more information on using dumpfiles, see Exporting Datasets to JSON Lines.
ckan.dumps_format¶
If there is a page which allows you to download a dump of the entire catalogue
then specify the format here, so that it can be advertised in the
web interface. dumps_format
is just a string for display. Example:
ckan.dumps_format = CSV/JSON
ckan.recaptcha.publickey¶
The public key for your reCAPTCHA account, for example:
ckan.recaptcha.publickey = 6Lc...-KLc
To get a reCAPTCHA account, sign up at: http://www.google.com/recaptcha
ckan.recaptcha.privatekey¶
The private key for your reCAPTCHA account, for example:
ckan.recaptcha.privatekey = 6Lc...-jP
Setting both ckan.recaptcha.publickey and ckan.recaptcha.privatekey adds captcha to the user registration form. This has been effective at preventing bots registering users and creating spam packages.
ckan.featured_groups¶
Example:
ckan.featured_groups = group_one
Default Value: (empty)
Defines a list of group names or group ids. This setting is used to display a group and datasets on the home page in the default templates (1 group and 2 datasets are displayed).
ckan.featured_orgs¶
Example:
ckan.featured_orgs = org_one
Default Value: (empty)
Defines a list of organization names or ids. This setting is used to display an organization and datasets on the home page in the default templates (1 group and 2 datasets are displayed).
ckan.default_group_sort¶
Example:
ckan.default_group_sort = name
Default Value: ‘title’
Defines if some other sorting is used in group_list and organization_list by default when the request does not specify sort.
ckan.gravatar_default¶
Example:
ckan.gravatar_default = disabled
Default value: identicon
This controls the default gravatar style. Gravatar is used by default when a user has not set a custom profile picture,
but it can be turn completely off by setting this option to “disabled”. In that case, a placeholder image will be shown
instead, which can be customized overriding the templates/user/snippets/placeholder.html
template.
ckan.debug_supress_header¶
Example:
ckan.debug_supress_header = False
Default value: False
This configs if the debug information showing the controller and action receiving the request being is shown in the header.
Note
This info only shows if debug is set to True.
Resource Views Settings¶
ckan.views.default_views¶
Example:
ckan.views.default_views = image_view webpage_view recline_grid_view
Default value: image_view recline_view
Defines the resource views that should be created by default when creating or updating a dataset. From this list only the views that are relevant to a particular resource format will be created. This is determined by each individual view.
If not present (or commented), the default value is used. If left empty, no default views are created.
Note
You must have the relevant view plugins loaded on the ckan.plugins
setting to be able to create the default views, eg:
ckan.plugins = image_view webpage_view recline_grid_view ...
ckan.views.default_views = image_view webpage_view recline_grid_view
ckan.preview.json_formats¶
Example:
ckan.preview.json_formats = json
Default value: json
Space-delimited list of JSON based resource formats that will be rendered by the Text view plugin (text_view
)
ckan.preview.xml_formats¶
Example:
ckan.preview.xml_formats = xml rdf rss
Default value: xml rdf rdf+xml owl+xml atom rss
Space-delimited list of XML based resource formats that will be rendered by the Text view plugin (text_view
)
ckan.preview.text_formats¶
Example:
ckan.preview.text_formats = text plain
Default value: text plain text/plain
Space-delimited list of plain text based resource formats that will be rendered by the Text view plugin (text_view
)
ckan.preview.image_formats¶
Example:
ckan.preview.image_formats = png jpeg jpg gif
Default value: png jpeg jpg gif
Space-delimited list of image-based resource formats that will be rendered by the Image view plugin (image_view
)
ckan.recline.dataproxy_url¶
Example:
ckan.recline.dataproxy_url = https://mydataproxy.example.com
Default value: //jsonpdataproxy.appspot.com
Custom URL to a self-hosted DataProxy instance. The DataProxy is an external service currently used to stream data in JSON format to the Recline-based views when data is not on the DataStore. The main instance is deprecated and will be eventually shut down, so users that require it can host an instance themselves and use this configuration option to point Recline to it.
Theming Settings¶
ckan.template_head_end¶
HTML content to be inserted just before </head>
tag (e.g. extra stylesheet)
Example:
ckan.template_head_end = <link rel="stylesheet" href="http://mysite.org/css/custom.css" type="text/css">
You can also have multiline strings. Just indent following lines. e.g.:
ckan.template_head_end =
<link rel="stylesheet" href="/css/extra1.css" type="text/css">
<link rel="stylesheet" href="/css/extra2.css" type="text/css">
Note
This is only for legacy code, and shouldn’t be used anymore.
ckan.template_title_delimiter¶
Example:
ckan.template_title_delimiter = |
Default value: -
This sets the delimiter between the site’s subtitle (if there’s one) and its title, in HTML’s <title>
.
extra_template_paths¶
Example:
extra_template_paths = /home/okfn/brazil_ckan_config/templates
Use this option to specify where CKAN should look for additional templates, before reverting to the ckan/templates
folder. You can supply more than one folder, separating the paths with a comma (,).
For more information on theming, see Theming guide.
extra_public_paths¶
Example:
extra_public_paths = /home/okfn/brazil_ckan_config/public
To customise the display of CKAN you can supply replacements for static files such as HTML, CSS, script and PNG files. Use this option to specify where CKAN should look for additional files, before reverting to the ckan/public
folder. You can supply more than one folder, separating the paths with a comma (,).
For more information on theming, see Theming guide.
ckan.base_public_folder¶
Example:
ckan.base_public_folder = public
Default value: public
This config option is used to configure the base folder for static files used
by CKAN core. It is currently unused and it only accepts one value: public
(Bootstrap 3, the default value from CKAN 2.8 onwards).
ckan.base_templates_folder¶
Example:
ckan.base_templates_folder = templates
Default value: templates
This config option is used to configure the base folder for templates used
by CKAN core. It is currently unused and it only accepts one vaue: templates
(Bootstrap 3, the default value from CKAN 2.8 onwards).
Storage Settings¶
ckan.storage_path¶
- Example::
- ckan.storage_path = /var/lib/ckan
Default value: None
This defines the location of where CKAN will store all uploaded data.
ckan.max_resource_size¶
- Example::
- ckan.max_resource_size = 100
Default value: 10
The maximum in megabytes a resources upload can be.
ckan.max_image_size¶
- Example::
- ckan.max_image_size = 10
Default value: 2
The maximum in megabytes an image upload can be.
Uploader Settings¶
ckan.upload.user.types¶
Example:
ckan.upload.user.types = image text
Default value: <empty>
File types allowed to upload as user’s avatar. No restrictions applied when empty
ckan.upload.user.mimetypes¶
Example:
ckan.upload.user.mimetypes = image/png text/svg
Default value: <empty>
File MIMETypes allowed to upload as user’s avatar. No restrictions applied when empty
ckan.upload.group.types¶
Example:
ckan.upload.group.types = image text
Default value: <empty>
File types allowed to upload as group image. No restrictions applied when empty
ckan.upload.group.mimetypes¶
Example:
ckan.upload.group.mimetypes = image/png text/svg
Default value: <empty>
File MIMETypes allowed to upload as group image. No restrictions applied when empty
Webassets Settings¶
ckan.webassets.path¶
Example:
ckan.webassets.path = /var/lib/ckan/webassets
Default value: webassets
folder under the path specified by the
ckan.storage_path option.
In order to increase performance, static assets (CSS and JS files) included via an asset
tag inside templates are compiled only once,
when the asset is used for the first time. All subsequent requests to the
asset will use the existing file. CKAN stores the compiled webassets in the file system, in the path specified by this config option.
ckan.webassets.use_x_sendfile¶
Example:
ckan.webassets.use_x_sendfile = true
Default value: false
When serving static files, if this setting is True
, the applicatin will set the X-Sendfile
header instead of
serving the files directly with Flask. This will increase performance when serving the assets, but it
requires that the web server (eg Nginx) supports the X-Sendfile
header. See X-Sendfile for more information.
DataPusher Settings¶
ckan.datapusher.formats¶
Example:
ckan.datapusher.formats = csv xls
Default value: csv xls xlsx tsv application/csv application/vnd.ms-excel application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
File formats that will be pushed to the DataStore by the DataPusher. When adding or editing a resource which links to a file in one of these formats, the DataPusher will automatically try to import its contents to the DataStore.
ckan.datapusher.url¶
Example:
ckan.datapusher.url = http://127.0.0.1:8800/
DataPusher endpoint to use when enabling the datapusher
extension. If you
installed CKAN via Installing CKAN from package, the DataPusher was installed for you
running on port 8800. If you want to manually install the DataPusher, follow
the installation instructions.
ckan.datapusher.callback_url_base¶
Example:
ckan.datapusher.callback_url_base = http://ckan:5000/
Default value: Value of ckan.site_url
Alternative callback URL for DataPusher when performing a request to CKAN. This is useful on scenarios where the host where DataPusher is running can not access the public CKAN site URL.
ckan.datapusher.assume_task_stale_after¶
Example:
ckan.datapusher.assume_task_stale_after = 86400
Default value: 3600
(one hour)
In case a DataPusher task gets stuck and fails to recover, this is the minimum amount of time (in seconds) after a resource is submitted to DataPusher that the resource can be submitted again.
User Settings¶
ckan.user_list_limit¶
Example:
ckan.user_list_limit = 50
Default value: 20
This controls the number of users to show in the Users list. By default, it shows 20 users.
Activity Streams Settings¶
ckan.activity_streams_enabled¶
Example:
ckan.activity_streams_enabled = False
Default value: True
Turns on and off the activity streams used to track changes on datasets, groups, users, etc
ckan.activity_streams_email_notifications¶
Example:
ckan.activity_streams_email_notifications = False
Default value: False
Turns on and off the activity streams’ email notifications. You’d also need to setup a cron job to send the emails. For more information, visit Email notifications.
ckan.activity_list_limit¶
Example:
ckan.activity_list_limit = 31
Default value: 31
This controls the number of activities to show in the Activity Stream.
ckan.activity_list_limit_max¶
Example:
ckan.activity_list_limit_max = 100
Default value: 100
Maximum allowed value for Activity Stream limit
parameter.
ckan.email_notifications_since¶
Example:
ckan.email_notifications_since = 2 days
Default value: infinite
Email notifications for events older than this time delta will not be sent. Accepted formats: ‘2 days’, ‘14 days’, ‘4:35:00’ (hours, minutes, seconds), ‘7 days, 3:23:34’, etc.
ckan.hide_activity_from_users¶
Example:
ckan.hide_activity_from_users = sysadmin
Hides activity from the specified users from activity stream. If unspecified, it’ll use ckan.site_id to hide activity by the site user. The site user is a sysadmin user on every ckan user with a username that’s equal to ckan.site_id. This user is used by ckan for performing actions from the command-line.
Feeds Settings¶
ckan.feeds.author_name¶
Example:
ckan.feeds.author_name = Michael Jackson
Default value: (none)
This controls the feed author’s name. If unspecified, it’ll use ckan.site_id.
ckan.feeds.author_link¶
Example:
ckan.feeds.author_link = http://okfn.org
Default value: (none)
This controls the feed author’s link. If unspecified, it’ll use ckan.site_url.
ckan.feeds.authority_name¶
Example:
ckan.feeds.authority_name = http://okfn.org
Default value: (none)
The domain name or email address of the default publisher of the feeds and elements. If unspecified, it’ll use ckan.site_url.
ckan.feeds.date¶
Example:
ckan.feeds.date = 2012-03-22
Default value: (none)
A string representing the default date on which the authority_name is owned by the publisher of the feed.
Internationalisation Settings¶
ckan.locale_default¶
Example:
ckan.locale_default = de
Default value: en
(English)
Use this to specify the locale (language of the text) displayed in the CKAN Web UI. This requires a suitable mo file installed for the locale in the ckan/i18n. For more information on internationalization, see Translating CKAN. If you don’t specify a default locale, then it will default to the first locale offered, which is by default English (alter that with ckan.locales_offered and ckan.locales_filtered_out.
ckan.locales_offered¶
Example:
ckan.locales_offered = en de fr
Default value: (none)
By default, all locales found in the ckan/i18n
directory will be offered to the user. To only offer a subset of these, list them under this option. The ordering of the locales is preserved when offered to the user.
ckan.locales_filtered_out¶
Example:
ckan.locales_filtered_out = pl ru
Default value: (none)
If you want to not offer particular locales to the user, then list them here to have them removed from the options.
ckan.locale_order¶
Example:
ckan.locale_order = fr de
Default value: (none)
If you want to specify the ordering of all or some of the locales as they are offered to the user, then specify them here in the required order. Any locales that are available but not specified in this option, will still be offered at the end of the list.
ckan.i18n_directory¶
Example:
ckan.i18n_directory = /opt/locales/i18n/
Default value: (none)
By default, the locales are searched for in the ckan/i18n
directory. Use this option if you want to use another folder.
ckan.i18n.extra_directory¶
Example:
ckan.i18n.extra_directory = /opt/ckan/extra_translations/
Default value: (none)
If you wish to add extra translation strings and have them merged with the default ckan translations at runtime you can specify the location of the extra translations using this option.
ckan.i18n.extra_gettext_domain¶
Example:
ckan.i18n.extra_gettext_domain = mydomain
Default value: (none)
You can specify the name of the gettext domain of the extra translations. For
example if your translations are stored as
i18n/<locale>/LC_MESSAGES/somedomain.mo
you would want to set this option
to somedomain
ckan.i18n.extra_locales¶
Example:
ckan.i18n.extra_locales = fr es de
Default value: (none)
If you have set an extra i18n directory using ckan.i18n.extra_directory
, you
should specify the locales that have been translated in that directory in this
option.
ckan.i18n.rtl_languages¶
Example:
ckan.i18n.rtl_languages = he ar fa_IR
Default value: he ar fa_IR
Allows to modify the right-to-left languages
ckan.i18n.rtl_theme¶
Example:
ckan.i18n.rtl_theme = my_extension/my-custom-rtl-theme
Default value: css/main-rtl
Allows to override the default RTL asset used for the languages defined
in ckan.i18n.rtl_languages
.
ckan.display_timezone¶
Example:
ckan.display_timezone = Europe/Zurich
Default value: UTC
By default, all datetimes are considered to be in the UTC timezone. Use this option to change the displayed dates on the frontend. Internally, the dates are always saved as UTC. This option only changes the way the dates are displayed.
The valid values for this options [can be found at pytz](http://pytz.sourceforge.net/#helpers) (pytz.all_timezones
). You can specify the special value server to use the timezone settings of the server, that is running CKAN.
ckan.root_path¶
Example:
ckan.root_path = /my/custom/path/{{LANG}}/foo
Default value: (none)
This setting is used to construct URLs inside CKAN. It specifies two things:
- At which path CKAN is mounted: By default it is assumed that CKAN is mounted
at
/
, i.e. at the root of your web server. If you have configured your web server to serve CKAN from a different mount point then you need to duplicate that setting here. - Where the locale is added to an URL: By default, URLs are formatted as
/some/url
when using the default locale, or/de/some/url
when using thede
locale, for example. Whenckan.root_path
is set it must include the string{{LANG}}
, which will be replaced by the locale.
Important
The setting must contain {{LANG}}
exactly as written here. Do not add
spaces between the brackets.
See also
The host of your CKAN installation can be set via ckan.site_url.
The CKAN repoze config file who.ini
file will also need to be edited
by adding the path prefix to the options in the [plugin:friendlyform]
section: login_form_url
, post_login_url
and post_logout_url
.
Do not change the login/logout_handler_path options.
ckan.resource_formats¶
- Example::
- ckan.resource_formats = /path/to/resource_formats
Default value: ckan/config/resource_formats.json
The purpose of this file is to supply a thorough list of resource formats and to make sure the formats are normalized when saved to the database and presented.
The format of the file is a JSON object with following format:
["Format", "Description", "Mimetype", ["List of alternative representations"]]
Please look in ckan/config/resource_formats.json for full details and and as an example.
Form Settings¶
ckan.dataset.create_on_ui_requires_resources¶
- Example::
- ckan.dataset.create_on_ui_requires_resources = False
Default value: True
If False, there is no need to add any resources when creating a new dataset.
package_new_return_url¶
The URL to redirect the user to after they’ve submitted a new package form, example:
package_new_return_url = http://datadotgc.ca/new_dataset_complete?name=<NAME>
This is useful for integrating CKAN’s new dataset form into a third-party interface, see Form Integration.
The <NAME>
string is replaced with the name of the dataset created.
package_edit_return_url¶
The URL to redirect the user to after they’ve submitted an edit package form, example:
package_edit_return_url = http://datadotgc.ca/dataset/<NAME>
This is useful for integrating CKAN’s edit dataset form into a third-party interface, see Form Integration.
The <NAME>
string is replaced with the name of the dataset that was edited.
licenses_group_url¶
A url pointing to a JSON file containing a list of license objects. This list determines the licenses offered by the system to users, for example when creating or editing a dataset.
This is entirely optional - by default, the system will use an internal cached version of the CKAN list of licenses available from the http://licenses.opendefinition.org/licenses/groups/ckan.json.
More details about the license objects - including the license format and some example license lists - can be found at the Open Licenses Service.
Examples:
licenses_group_url = file:///path/to/my/local/json-list-of-licenses.json
licenses_group_url = http://licenses.opendefinition.org/licenses/groups/od.json
Email Settings¶
smtp.server¶
Example:
smtp.server = smtp.example.com:587
Default value: None
The SMTP server to connect to when sending emails with optional port.
smtp.starttls¶
Example:
smtp.starttls = True
Default value: None
Whether or not to use STARTTLS when connecting to the SMTP server.
smtp.user¶
Example:
smtp.user = username@example.com
Default value: None
The username used to authenticate with the SMTP server.
smtp.password¶
Example:
smtp.password = yourpass
Default value: None
The password used to authenticate with the SMTP server.
smtp.mail_from¶
Example:
smtp.mail_from = ckan@example.com
Default value: None
The email address that emails sent by CKAN will come from. Note that, if left blank, the SMTP server may insert its own.
smtp.reply_to¶
Example:
smtp.mail_from = noreply.example.com
Default value: None
The email address that will be used if someone attempts to reply to a system email.
If left blank, no Reply-to
will be added to the email and the value of
smtp.mail_from
will be used.
email_to¶
Example:
email_to = errors@example.com
Default value: None
This controls where the error messages will be sent to.
error_email_from¶
Example:
error_email_from = ckan-errors@example.com
Default value: None
This controls from which email the error messages will come from.