Update api/settings.md

Fix spacing, typos, add missing settings, and remove deprecated ones.

1 files changed, 134 insertions, 102 deletions

diff --git a/doc/api/settings.md b/doc/api/settings.md
index b480d62e16a..83fa9b055d1 100644
--- a/doc/api/settings.md
+++ b/doc/api/settings.md
@@ -1,12 +1,14 @@
 # Application settings API
 
-These API calls allow you to read and modify GitLab instance application
-settings as appear in `/admin/application_settings`. You have to be an
+These API calls allow you to read and modify GitLab instance
+[application settings](#list-of-settings-that-can-be-accessed-via-api-calls)
+as appear in `/admin/application_settings`. You have to be an
 administrator in order to perform this action.
 
 ## Get current application settings
 
-List the current application settings of the GitLab instance.
+List the current [application settings](#list-of-settings-that-can-be-accessed-via-api-calls)
+of the GitLab instance.
 
 ```
 GET /application/settings
@@ -63,108 +65,13 @@ Example response:
 
 ## Change application settings
 
+Use an API call to modify GitLab instance
+[application settings](#list-of-settings-that-can-be-accessed-via-api-calls).
+
 ```
 PUT /application/settings
 ```
 
-| Attribute | Type | Required | Description |
-| --------- | ---- | :------: | ----------- |
-| `admin_notification_email`               | string           | no                                            | Abuse reports will be sent to this address if it is set. Abuse reports are always available in the admin area.                                                                                                                                                                                                                                                                                                                                            |
-| `after_sign_out_path`                    | string           | no                                            | Where to redirect users after logout                                                                                                                                                                                                                                                                                                                                                                                                                      |
-| `after_sign_up_text`                     | string           | no                                            | Text shown to the user after signing up                                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `akismet_api_key`                        | string           | no                                            | API key for akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                       |
-| `akismet_enabled`                        | boolean          | no                                            | Enable or disable akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                 |
-| `circuitbreaker_access_retries`          | integer          | no                                            | The number of attempts GitLab will make to access a storage.                                                                                                                                                                                                                                                                                                                                                                                              |
-| `circuitbreaker_check_interval`          | integer          | no                                            | Number of seconds in between storage checks.                                                                                                                                                                                                                                                                                                                                                                                                              |
-| `circuitbreaker_failure_count_threshold` | integer          | no                                            | The number of failures of after which GitLab will completely prevent access to the storage.                                                                                                                                                                                                                                                                                                                                                               |
-| `circuitbreaker_failure_reset_time`      | integer          | no                                            | Time in seconds GitLab will keep storage failure information. When no failures occur during this time, the failure information is reset.                                                                                                                                                                                                                                                                                                                  |
-| `circuitbreaker_storage_timeout`         | integer          | no                                            | Seconds to wait for a storage access attempt                                                                                                                                                                                                                                                                                                                                                                                                              |
-| `clientside_sentry_dsn`                  | string           | no                                            | Required if `clientside_sentry_dsn` is enabled                                                                                                                                                                                                                                                                                                                                                                                                            |
-| `clientside_sentry_enabled`              | boolean          | no                                            | Enable Sentry error reporting for the client side                                                                                                                                                                                                                                                                                                                                                                                                         |
-| `container_registry_token_expire_delay`  | integer          | no                                            | Container Registry token duration in minutes                                                                                                                                                                                                                                                                                                                                                                                                              |
-| `default_artifacts_expire_in`            | string           | no                                            | Set the default expiration time for each job's artifacts                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `default_branch_protection`              | integer          | no                                            | Determine if developers can push to master. Can take `0` _(not protected, both developers and maintainers can push new commits, force push, or delete the branch)_, `1` _(partially protected, developers and maintainers can push new commits, but cannot force push or delete the branch)_ or `2` _(fully protected, developers cannot push new commits, but maintainers can; no-one can force push or delete the branch)_ as a parameter. Default is `2`. |
-| `default_group_visibility`               | string           | no                                            | What visibility level new groups receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.                                                                                                                                                                                                                                                                                                                               |
-| `default_project_visibility`             | string           | no                                            | What visibility level new projects receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.                                                                                                                                                                                                                                                                                                                             |
-| `default_projects_limit`                 | integer          | no                                            | Project limit per user. Default is `100000`                                                                                                                                                                                                                                                                                                                                                                                                               |
-| `default_snippet_visibility`             | string           | no                                            | What visibility level new snippets receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`.                                                                                                                                                                                                                                                                                                                             |
-| `disabled_oauth_sign_in_sources`         | Array of strings | no                                            | Disabled OAuth sign-in sources                                                                                                                                                                                                                                                                                                                                                                                                                            |
-| `domain_blacklist_enabled`               | boolean          | no                                            | Enable/disable the `domain_blacklist`                                                                                                                                                                                                                                                                                                                                                                                                                     |
-| `domain_blacklist`                       | array of strings | yes (if `domain_blacklist_enabled` is `true`) | People trying to sign-up with emails from this domain will not be allowed to do so.                                                                                                                                                                                                                                                                                                                                                                       |
-| `domain_whitelist`                       | array of strings | no                                            | Force people to use only corporate emails for sign-up. Default is null, meaning there is no restriction.                                                                                                                                                                                                                                                                                                                                                  |
-| `dsa_key_restriction`                    | integer          | no                                            | The minimum allowed bit length of an uploaded DSA key. Default is `0` (no restriction). `-1` disables DSA keys.                                                                                                                                                                                                                                                                                                                                           |
-| `ecdsa_key_restriction`                  | integer          | no                                            | The minimum allowed curve size (in bits) of an uploaded ECDSA key. Default is `0` (no restriction). `-1` disables ECDSA keys.                                                                                                                                                                                                                                                                                                                             |
-| `ed25519_key_restriction`                | integer          | no                                            | The minimum allowed curve size (in bits) of an uploaded ED25519 key. Default is `0` (no restriction). `-1` disables ED25519 keys.                                                                                                                                                                                                                                                                                                                         |
-| `email_author_in_body`                   | boolean          | no                                            | Some email servers do not support overriding the email sender name. Enable this option to include the name of the author of the issue, merge request or comment in the email body instead.                                                                                                                                                                                                                                                                |
-| `enabled_git_access_protocol`            | string           | no                                            | Enabled protocols for Git access. Allowed values are: `ssh`, `http`, and `nil` to allow both protocols.                                                                                                                                                                                                                                                                                                                                                   |
-| `gravatar_enabled`                       | boolean          | no                                            | Enable Gravatar                                                                                                                                                                                                                                                                                                                                                                                                                                           |
-| `help_page_hide_commercial_content`      | boolean          | no                                            | Hide marketing-related entries from help                                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `help_page_support_url`                  | string           | no                                            | Alternate support URL for help page                                                                                                                                                                                                                                                                                                                                                                                                                       |
-| `home_page_url`                          | string           | no                                            | Redirect to this URL when not logged in                                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `housekeeping_bitmaps_enabled`           | boolean          | no                                            | Enable Git pack file bitmap creation                                                                                                                                                                                                                                                                                                                                                                                                                      |
-| `housekeeping_enabled`                   | boolean          | no                                            | Enable or disable git housekeeping                                                                                                                                                                                                                                                                                                                                                                                                                        |
-| `housekeeping_full_repack_period`        | integer          | no                                            | Number of Git pushes after which an incremental 'git repack' is run.                                                                                                                                                                                                                                                                                                                                                                                      |
-| `housekeeping_gc_period`                 | integer          | no                                            | Number of Git pushes after which 'git gc' is run.                                                                                                                                                                                                                                                                                                                                                                                                         |
-| `housekeeping_incremental_repack_period` | integer          | no                                            | Number of Git pushes after which an incremental 'git repack' is run.                                                                                                                                                                                                                                                                                                                                                                                      |
-| `html_emails_enabled`                    | boolean          | no                                            | Enable HTML emails                                                                                                                                                                                                                                                                                                                                                                                                                                        |
-| `import_sources`                         | Array of strings | no                                            | Sources to allow project import from, possible values: "github bitbucket gitlab google_code fogbugz git gitlab_project manifest                                                                                                                                                                                                                                                                                                                           |
-| `koding_enabled`                         | boolean          | no                                            | Enable Koding integration. Default is `false`.                                                                                                                                                                                                                                                                                                                                                                                                            |
-| `koding_url`                             | string           | yes (if `koding_enabled` is `true`)           | The Koding instance URL for integration.                                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `max_artifacts_size`                     | integer          | no                                            | Maximum artifacts size in MB                                                                                                                                                                                                                                                                                                                                                                                                                              |
-| `max_attachment_size`                    | integer          | no                                            | Limit attachment size in MB                                                                                                                                                                                                                                                                                                                                                                                                                               |
-| `max_pages_size`                         | integer          | no                                            | Maximum size of pages repositories in MB                                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `metrics_enabled`                        | boolean          | no                                            | Enable influxDB metrics                                                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `metrics_host`                           | string           | yes (if `metrics_enabled` is `true`)          | InfluxDB host                                                                                                                                                                                                                                                                                                                                                                                                                                             |
-| `metrics_method_call_threshold`          | integer          | yes (if `metrics_enabled` is `true`)          | A method call is only tracked when it takes longer than the given amount of milliseconds                                                                                                                                                                                                                                                                                                                                                                  |
-| `metrics_packet_size`                    | integer          | yes (if `metrics_enabled` is `true`)          | The amount of datapoints to send in a single UDP packet.                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `metrics_pool_size`                      | integer          | yes (if `metrics_enabled` is `true`)          | The amount of InfluxDB connections to keep open                                                                                                                                                                                                                                                                                                                                                                                                           |
-| `metrics_port`                           | integer          | no                                            | The UDP port to use for connecting to InfluxDB                                                                                                                                                                                                                                                                                                                                                                                                            |
-| `metrics_sample_interval`                | integer          | yes (if `metrics_enabled` is `true`)          | The sampling interval in seconds.                                                                                                                                                                                                                                                                                                                                                                                                                         |
-| `metrics_timeout`                        | integer          | yes (if `metrics_enabled` is `true`)          | The amount of seconds after which InfluxDB will time out.                                                                                                                                                                                                                                                                                                                                                                                                 |
-| `password_authentication_enabled_for_web` | boolean         | no                                            | Enable authentication for the web interface via a GitLab account password. Default is `true`.                                                                                                                                                                                                                                                                                                                                                                                   |
-| `password_authentication_enabled_for_git` | boolean         | no                                            | Enable authentication for Git over HTTP(S) via a GitLab account password. Default is `true`.                                                                                                                                                                                                                                                                                                                                                                                   |
-| `performance_bar_allowed_group_path`      | string          | no                                            | Path of the group that is allowed to toggle the performance bar                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `performance_bar_allowed_group_id`       | string           | no                                            | Deprecated: Use `performance_bar_allowed_group_path` instead. Path of the group that is allowed to toggle the performance bar                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `performance_bar_enabled`                | boolean          | no                                            | Deprecated: Pass `performance_bar_allowed_group_path: nil` instead. Allow enabling the performance bar                                                                                                                                                                                                                                                                                                                                                                                                                        |
-| `plantuml_enabled`                       | boolean          | no                                            | Enable PlantUML integration. Default is `false`.                                                                                                                                                                                                                                                                                                                                                                                                          |
-| `plantuml_url`                           | string           | yes (if `plantuml_enabled` is `true`)         | The PlantUML instance URL for integration.                                                                                                                                                                                                                                                                                                                                                                                                                |
-| `polling_interval_multiplier`            | decimal          | no                                            | Interval multiplier used by endpoints that perform polling. Set to 0 to disable polling.                                                                                                                                                                                                                                                                                                                                                                  |
-| `project_export_enabled`                 | boolean          | no                                            | Enable project export                                                                                                                                                                                                                                                                                                                                                                                                                                     |
-| `prometheus_metrics_enabled`             | boolean          | no                                            | Enable prometheus metrics                                                                                                                                                                                                                                                                                                                                                                                                                                 |
-| `recaptcha_enabled`                      | boolean          | no                                            | Enable recaptcha                                                                                                                                                                                                                                                                                                                                                                                                                                          |
-| `recaptcha_private_key`                  | string           | yes (if `recaptcha_enabled` is true)          | Private key for recaptcha                                                                                                                                                                                                                                                                                                                                                                                                                                 |
-| `recaptcha_site_key`                     | string           | yes (if `recaptcha_enabled` is true)          | Site key for recaptcha                                                                                                                                                                                                                                                                                                                                                                                                                                    |
-| `repository_checks_enabled`              | boolean          | no                                            | GitLab will periodically run 'git fsck' in all project and wiki repositories to look for silent disk corruption issues.                                                                                                                                                                                                                                                                                                                                   |
-| `repository_storages`                    | array of strings | no                                            | A list of names of enabled storage paths, taken from `gitlab.yml`. New projects will be created in one of these stores, chosen at random.                                                                                                                                                                                                                                                                                                                 |
-| `require_two_factor_authentication`      | boolean          | no                                            | Require all users to setup Two-factor authentication                                                                                                                                                                                                                                                                                                                                                                                                      |
-| `restricted_visibility_levels`           | array of strings | no                                            | Selected levels cannot be used by non-admin users for groups, projects or snippets. Can take `private`, `internal` and `public` as a parameter. Default is null which means there is no restriction.                                                                                                                                                                                                                                                              |
-| `rsa_key_restriction`                    | integer          | no                                            | The minimum allowed bit length of an uploaded RSA key. Default is `0` (no restriction). `-1` disables RSA keys.                                                                                                                                                                                                                                                                                                                                           |
-| `send_user_confirmation_email`           | boolean          | no                                            | Send confirmation email on sign-up                                                                                                                                                                                                                                                                                                                                                                                                                        |
-| `sentry_dsn`                             | string           | yes (if `sentry_enabled` is true)             | Sentry Data Source Name                                                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `sentry_enabled`                         | boolean          | no                                            | Sentry is an error reporting and logging tool which is currently not shipped with GitLab, get it here: https://getsentry.com                                                                                                                                                                                                                                                                                                                              |
-| `session_expire_delay`                   | integer          | no                                            | Session duration in minutes. GitLab restart is required to apply changes                                                                                                                                                                                                                                                                                                                                                                                  |
-| `shared_runners_enabled`                 | true             | no                                            | Enable shared runners for new projects                                                                                                                                                                                                                                                                                                                                                                                                                    |
-| `shared_runners_text`                    | string           | no                                            | Shared runners text                                                                                                                                                                                                                                                                                                                                                                                                                                       |
-| `sidekiq_throttling_enabled`             | boolean          | no                                            | Enable Sidekiq Job Throttling                                                                                                                                                                                                                                                                                                                                                                                                                             |
-| `sidekiq_throttling_factor`              | decimal          | yes (if `sidekiq_throttling_enabled` is true) | The factor by which the queues should be throttled. A value between 0.0 and 1.0, exclusive.                                                                                                                                                                                                                                                                                                                                                               |
-| `sidekiq_throttling_queues`              | array of strings | yes (if `sidekiq_throttling_enabled` is true) | Choose which queues you wish to throttle                                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `sign_in_text`                           | string           | no                                            | Text on login page                                                                                                                                                                                                                                                                                                                                                                                                                                        |
-| `signup_enabled`                         | boolean          | no                                            | Enable registration. Default is `true`.                                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `terminal_max_session_time`              | integer          | no                                            | Maximum time for web terminal websocket connection (in seconds). Set to 0 for unlimited time.                                                                                                                                                                                                                                                                                                                                                             |
-| `two_factor_grace_period`                | integer          | no                                            | Amount of time (in hours) that users are allowed to skip forced configuration of two-factor authentication                                                                                                                                                                                                                                                                                                                                                |
-| `unique_ips_limit_enabled`               | boolean          | no                                            | Limit sign in from multiple ips                                                                                                                                                                                                                                                                                                                                                                                                                           |
-| `unique_ips_limit_per_user`              | integer          | yes (if `unique_ips_limit_enabled` is true)   | Maximum number of ips per user                                                                                                                                                                                                                                                                                                                                                                                                                            |
-| `unique_ips_limit_time_window`           | integer          | yes (if `unique_ips_limit_enabled` is true)   | How many seconds an IP will be counted towards the limit                                                                                                                                                                                                                                                                                                                                                                                                  |
-| `usage_ping_enabled`                     | boolean          | no                                            | Every week GitLab will report license usage back to GitLab, Inc.                                                                                                                                                                                                                                                                                                                                                                                          |
-| `user_default_external`                  | boolean          | no                                            | Newly registered users will by default be external                                                                                                                                                                                                                                                                                                                                                                                                        |
-| `user_oauth_applications`                | boolean          | no                                            | Allow users to register any application to use GitLab as an OAuth provider                                                                                                                                                                                                                                                                                                                                                                                |
-| `version_check_enabled`                  | boolean          | no                                            | Let GitLab inform you when an update is available.                                                                                                                                                                                                                                                                                                                                                                                                        |
-| `enforce_terms`                          | boolean          | no                                            | Enforce application ToS to all users                                                                                                                                                                                                                                                                                                                                                                                                         |
-| `terms`                                  | text             | yes (if `enforce_terms` is true)              | Markdown content for the ToS                                                                                                                                                                                                                                                                                                                                                                                                                 |
-| `instance_statistics_visibility_private` | boolean          | no                                            | When set to `true` Instance statistics will only be available to admins                                                                                                                                                                                                                                                                                                                                                                      |
-| `user_show_add_ssh_key_message`          | boolean          | no                                            | When set to `false` disable the "You won't be able to pull or push
-+project code via SSH" warning shown to users with no uploaded SSH key                                                                                                                                                                                                                                                                   |
-
 ```bash
 curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/application/settings?signup_enabled=false&default_project_visibility=internal
 ```
@@ -175,7 +82,7 @@ Example response:
 {
   "id": 1,
   "default_projects_limit": 100000,
-  "signup_enabled": true,
+  "signup_enabled": false,
   "password_authentication_enabled_for_web": true,
   "gravatar_enabled": true,
   "sign_in_text": "",
@@ -213,3 +120,128 @@ Example response:
   "user_show_add_ssh_key_message": true
 }
 ```
+
+## List of settings that can be accessed via API calls
+
+In general, all settings are optional. Certain settings though, if enabled, will
+require other settings to be set in order to function properly. These requirements
+are listed in the descriptions of the relevant settings.
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | :------: | ----------- |
+| `admin_notification_email`               | string           | no                                   | Abuse reports will be sent to this address if it is set. Abuse reports are always available in the admin area. |
+| `after_sign_out_path`                    | string           | no                                   | Where to redirect users after logout. |
+| `after_sign_up_text`                     | string           | no                                   | Text shown to the user after signing up |
+| `akismet_api_key`                        | string           | required by: `akismet_enabled`       | API key for akismet spam protection. |
+| `akismet_enabled`                        | boolean          | no                                   | (**If enabled, requires:** `akismet_api_key`) Enable or disable akismet spam protection. |
+| `allow_local_requests_from_hooks_and_services` | boolean    | no                                   | Allow requests to the local network from hooks and services. |
+| `authorized_keys_enabled`                | boolean          | no                                   | By default, we write to the `authorized_keys` file to support Git over SSH without additional configuration. GitLab can be optimized to authenticate SSH keys via the database file. Only disable this if you have configured your OpenSSH server to use the AuthorizedKeysCommand. |
+| `auto_devops_domain`                     | string           | no                                   | Specify a domain to use by default for every project's Auto Review Apps and Auto Deploy stages. |
+| `auto_devops_enabled`                    | boolean          | no                                   | Enable Auto DevOps for projects by default. It will automatically build, test, and deploy applications based on a predefined CI/CD configuration. |
+| `circuitbreaker_access_retries`          | integer          | no                                   | The number of attempts GitLab will make to access a storage. |
+| `circuitbreaker_check_interval`          | integer          | no                                   | Number of seconds in between storage checks. |
+| `circuitbreaker_failure_count_threshold` | integer          | no                                   | The number of failures after which GitLab will completely prevent access to the storage.  |
+| `circuitbreaker_failure_reset_time`      | integer          | no                                   | Time in seconds GitLab will keep storage failure information. When no failures occur during this time, the failure information is reset. |
+| `circuitbreaker_storage_timeout`         | integer          | no                                   | Seconds to wait for a storage access attempt. |
+| `clientside_sentry_dsn`                  | string           | required by: `clientside_sentry_enabled` | Clientside Sentry Data Source Name. |
+| `clientside_sentry_enabled`              | boolean          | no                                   | (**If enabled, requires:** `clientside_sentry_dsn`) Enable Sentry error reporting for the client side. |
+| `container_registry_token_expire_delay`  | integer          | no                                   | Container Registry token duration in minutes. |
+| `default_artifacts_expire_in`            | string           | no                                   | Set the default expiration time for each job's artifacts. |
+| `default_branch_protection`              | integer          | no                                   | Determine if developers can push to master. Can take: `0` _(not protected, both developers and maintainers can push new commits, force push, or delete the branch)_, `1` _(partially protected, developers and maintainers can push new commits, but cannot force push or delete the branch)_ or `2` _(fully protected, developers cannot push new commits, but maintainers can; no-one can force push or delete the branch)_ as a parameter. Default is `2`. |
+| `default_group_visibility`               | string           | no                                   | What visibility level new groups receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`. |
+| `default_project_visibility`             | string           | no                                   | What visibility level new projects receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`. |
+| `default_projects_limit`                 | integer          | no                                   | Project limit per user. Default is `100000`. |
+| `default_snippet_visibility`             | string           | no                                   | What visibility level new snippets receive. Can take `private`, `internal` and `public` as a parameter. Default is `private`. |
+| `disabled_oauth_sign_in_sources`         | array of strings | no                                   | Disabled OAuth sign-in sources. |
+| `domain_blacklist`                       | array of strings | required by: `domain_blacklist_enabled` | Users with e-mail addresses that match these domain(s) will NOT be able to sign-up. Wildcards allowed. Use separate lines for multiple entries. Ex: `domain.com`, `*.domain.com`. |
+| `domain_blacklist_enabled`               | boolean          | no                                   | (**If enabled, requires:** `domain_blacklist`) Allows blocking sign-ups from emails from specific domains. |
+| `domain_whitelist`                       | array of strings | no                                   | Force people to use only corporate emails for sign-up. Default is `null`, meaning there is no restriction. |
+| `dsa_key_restriction`                    | integer          | no                                   | The minimum allowed bit length of an uploaded DSA key. Default is `0` (no restriction). `-1` disables DSA keys. |
+| `ecdsa_key_restriction`                  | integer          | no                                   | The minimum allowed curve size (in bits) of an uploaded ECDSA key. Default is `0` (no restriction). `-1` disables ECDSA keys. |
+| `ed25519_key_restriction`                | integer          | no                                   | The minimum allowed curve size (in bits) of an uploaded ED25519 key. Default is `0` (no restriction). `-1` disables ED25519 keys. |
+| `email_author_in_body`                   | boolean          | no                                   | Some email servers do not support overriding the email sender name. Enable this option to include the name of the author of the issue, merge request or comment in the email body instead. |
+| `enabled_git_access_protocol`            | string           | no                                   | Enabled protocols for Git access. Allowed values are: `ssh`, `http`, and `nil` to allow both protocols. |
+| `enforce_terms`                          | boolean          | no                                   | (**If enabled, requires:** `terms`) Enforce application ToS to all users. |
+| `gitaly_timeout_default`                 | integer          | no                                   | Default Gitaly timeout, in seconds. This timeout is not enforced for git fetch/push operations or Sidekiq jobs. Set to `0` to disable timeouts. |
+| `gitaly_timeout_fast`                    | integer          | no                                   | Gitaly fast operation timeout, in seconds. Some Gitaly operations are expected to be fast. If they exceed this threshold, there may be a problem with a storage shard and 'failing fast' can help maintain the stability of the GitLab instance. Set to `0` to disable timeouts. |
+| `gitaly_timeout_medium`                  | integer          | no                                   | Medium Gitaly timeout, in seconds. This should be a value between the Fast and the Default timeout. Set to `0` to disable timeouts. |
+| `gravatar_enabled`                       | boolean          | no                                   | Enable Gravatar. |
+| `hashed_storage_enabled`                 | boolean          | no                                   | Create new projects using hashed storage paths: Enable immutable, hash-based paths and repository names to store repositories on disk. This prevents repositories from having to be moved or renamed when the Project URL changes and may improve disk I/O performance. (EXPERIMENTAL) |
+| `help_page_hide_commercial_content`      | boolean          | no                                   | Hide marketing-related entries from help. |
+| `help_page_support_url`                  | string           | no                                   | Alternate support URL for help page. |
+| `help_page_text`                         | string           | no                                   | Custom text displayed on the help page. |
+| `hide_third_party_offers`                | boolean          | no                                   | Do not display offers from third parties within GitLab. |
+| `home_page_url`                          | string           | no                                   | Redirect to this URL when not logged in. |
+| `housekeeping_bitmaps_enabled`           | boolean          | required by: `housekeeping_enabled`  | Enable Git pack file bitmap creation. |
+| `housekeeping_enabled`                   | boolean          | no                                   | (**If enabled, requires:** `housekeeping_bitmaps_enabled`, `housekeeping_full_repack_period`, `housekeeping_gc_period`, and `housekeeping_incremental_repack_period`) Enable or disable git housekeeping. |
+| `housekeeping_full_repack_period`        | integer          | required by: `housekeeping_enabled`  | Number of Git pushes after which an incremental `git repack` is run. |
+| `housekeeping_gc_period`                 | integer          | required by: `housekeeping_enabled`  | Number of Git pushes after which `git gc` is run. |
+| `housekeeping_incremental_repack_period` | integer          | required by: `housekeeping_enabled`  | Number of Git pushes after which an incremental `git repack` is run. |
+| `html_emails_enabled`                    | boolean          | no                                   | Enable HTML emails. |
+| `instance_statistics_visibility_private` | boolean          | no                                   | When set to `true` Instance statistics will only be available to admins. |
+| `import_sources`                         | array of strings | no                                   | Sources to allow project import from, possible values: `github`, `bitbucket`, `gitlab`, `google_code`, `fogbugz`, `git`, and `gitlab_project`. |
+| `koding_enabled`                         | boolean          | no                                   | (If enabled, requires: `koding_url`) Enable Koding integration. Default is `false`. |
+| `koding_url`                             | string           | required by: `koding_enabled`        | The Koding instance URL for integration. |
+| `max_artifacts_size`                     | integer          | no                                   | Maximum artifacts size in MB |
+| `max_attachment_size`                    | integer          | no                                   | Limit attachment size in MB |
+| `max_pages_size`                         | integer          | no                                   | Maximum size of pages repositories in MB |
+| `metrics_enabled`                        | boolean          | no                                   | (**If enabled, requires:** `metrics_host`, `metrics_method_call_threshold`, `metrics_packet_size`, `metrics_pool_size`, `metrics_port`, `metrics_sample_interval` and `metrics_timeout`) Enable influxDB metrics. |
+| `metrics_host`                           | string           | required by: `metrics_enabled`       | InfluxDB host. |
+| `metrics_method_call_threshold`          | integer          | required by: `metrics_enabled`       | A method call is only tracked when it takes longer than the given amount of milliseconds. |
+| `metrics_packet_size`                    | integer          | required by: `metrics_enabled`       | The amount of datapoints to send in a single UDP packet. |
+| `metrics_pool_size`                      | integer          | required by: `metrics_enabled`       | The amount of InfluxDB connections to keep open. |
+| `metrics_port`                           | integer          | required by: `metrics_enabled`       | The UDP port to use for connecting to InfluxDB. |
+| `metrics_sample_interval`                | integer          | required by: `metrics_enabled`       | The sampling interval in seconds. |
+| `metrics_timeout`                        | integer          | required by: `metrics_enabled`       | The amount of seconds after which InfluxDB will time out. |
+| `mirror_available`                       | boolean          | no                                   | Allow mirrors to be setup for projects. If disabled, only admins will be able to setup mirrors in projects. |
+| `pages_domain_verification_enabled`      | boolean          | no                                   | Require users to prove ownership of custom domains. Domain verification is an essential security measure for public GitLab sites. Users are required to demonstrate they control a domain before it is enabled. |
+| `password_authentication_enabled_for_git` | boolean         | no                                   | Enable authentication for Git over HTTP(S) via a GitLab account password. Default is `true`. |
+| `password_authentication_enabled_for_web` | boolean         | no                                   | Enable authentication for the web interface via a GitLab account password. Default is `true`. |
+| `performance_bar_allowed_group_id`       | string           | no                                   | (Deprecated: Use `performance_bar_allowed_group_path` instead) Path of the group that is allowed to toggle the performance bar. |
+| `performance_bar_allowed_group_path`     | string           | no                                   | Path of the group that is allowed to toggle the performance bar. |
+| `performance_bar_enabled`                | boolean          | no                                   | (Deprecated: Pass `performance_bar_allowed_group_path: nil` instead) Allow enabling the performance bar. |
+| `plantuml_enabled`                       | boolean          | no                                   | (**If enabled, requires:** `plantuml_url`) Enable PlantUML integration. Default is `false`. |
+| `plantuml_url`                           | string           | required by: `plantuml_enabled`      | The PlantUML instance URL for integration. |
+| `polling_interval_multiplier`            | decimal          | no                                   | Interval multiplier used by endpoints that perform polling. Set to `0` to disable polling. |
+| `project_export_enabled`                 | boolean          | no                                   | Enable project export. |
+| `prometheus_metrics_enabled`             | boolean          | no                                   | Enable prometheus metrics. |
+| `recaptcha_enabled`                      | boolean          | no                                   | (**If enabled, requires:** `recaptcha_private_key` and `recaptcha_site_key`) Enable recaptcha. |
+| `recaptcha_private_key`                  | string           | required by: `recaptcha_enabled`     | Private key for recaptcha. |
+| `recaptcha_site_key`                     | string           | required by: `recaptcha_enabled`     | Site key for recaptcha. |
+| `repository_checks_enabled`              | boolean          | no                                   | GitLab will periodically run `git fsck` in all project and wiki repositories to look for silent disk corruption issues. |
+| `repository_storages`                    | array of strings | no                                   | A list of names of enabled storage paths, taken from `gitlab.yml`. New projects will be created in one of these stores, chosen at random. |
+| `require_two_factor_authentication`      | boolean          | no                                   | (**If enabled, requires:** `two_factor_grace_period`) Require all users to set up Two-factor authentication. |
+| `restricted_visibility_levels`           | array of strings | no                                   | Selected levels cannot be used by non-admin users for groups, projects or snippets. Can take `private`, `internal` and `public` as a parameter. Default is `null` which means there is no restriction. |
+| `rsa_key_restriction`                    | integer          | no                                   | The minimum allowed bit length of an uploaded RSA key. Default is `0` (no restriction). `-1` disables RSA keys. |
+| `send_user_confirmation_email`           | boolean          | no                                   | Send confirmation email on sign-up. |
+| `sentry_dsn`                             | string           | required by: `sentry_enabled`        | Sentry Data Source Name. |
+| `sentry_enabled`                         | boolean          | no                                   | (**If enabled, requires:** `sentry_dsn`) Sentry is an error reporting and logging tool which is currently not shipped with GitLab, available at https://getsentry.com. |
+| `session_expire_delay`                   | integer          | no                                   | Session duration in minutes. GitLab restart is required to apply changes |
+| `shared_runners_enabled`                 | boolean          | no                                   | (**If enabled, requires:** `shared_runners_text`) Enable shared runners for new projects. |
+| `shared_runners_text`                    | string           | required by: `shared_runners_enabled` | Shared runners text. |
+| `sidekiq_throttling_enabled`             | boolean          | no                                   | (**If enabled, requires:** `sidekiq_throttling_factor` and `sidekiq_throttling_queues`) Enable Sidekiq Job Throttling. |
+| `sidekiq_throttling_factor`              | decimal          | required by: `sidekiq_throttling_enabled` | The factor by which the queues should be throttled. A value between `0.0` and `1.0`, exclusive. |
+| `sidekiq_throttling_queues`              | array of strings | required by: `sidekiq_throttling_enabled` | Choose which queues you wish to throttle. |
+| `sign_in_text`                           | string           | no                                   | Text on the login page. |
+| `signin_enabled`                         | string           | no                                   | (Deprecated: Use `password_authentication_enabled_for_web` instead) Flag indicating if password authentication is enabled for the web interface. |
+| `signup_enabled`                         | boolean          | no                                   | Enable registration. Default is `true`. |
+| `terminal_max_session_time`              | integer          | no                                   | Maximum time for web terminal websocket connection (in seconds). Set to `0` for unlimited time. |
+| `terms`                                  | text             | required by: `enforce_terms`         | (**Required by:** `enforce_terms`) Markdown content for the ToS. |
+| `throttle_authenticated_api_enabled`     | boolean          | no                                   | (**If enabled, requires:** `throttle_authenticated_api_period_in_seconds` and `throttle_authenticated_api_requests_per_period`) Enable authenticated API request rate limit. Helps reduce request volume (e.g. from crawlers or abusive bots). |
+| `throttle_authenticated_api_period_in_seconds` | integer    | required by: `throttle_authenticated_api_enabled` | Rate limit period in seconds.  |
+| `throttle_authenticated_api_requests_per_period` | integer  | required by: `throttle_authenticated_api_enabled` | Max requests per period per user. |
+| `throttle_authenticated_web_enabled`     | boolean          | no                                   | (**If enabled, requires:** `throttle_authenticated_web_period_in_seconds` and `throttle_authenticated_web_requests_per_period`) Enable authenticated web request rate limit. Helps reduce request volume (e.g. from crawlers or abusive bots). |
+| `throttle_authenticated_web_period_in_seconds` | integer    | required by: `throttle_authenticated_web_enabled` | Rate limit period in seconds. |
+| `throttle_authenticated_web_requests_per_period` | integer  | required by: `throttle_authenticated_web_enabled` | Max requests per period per user. |
+| `throttle_unauthenticated_enabled`       | boolean          | no                                   | (**If enabled, requires:** `throttle_unauthenticated_period_in_seconds` and `throttle_unauthenticated_requests_per_period`) Enable unauthenticated request rate limit. Helps reduce request volume (e.g. from crawlers or abusive bots). |
+| `throttle_unauthenticated_period_in_seconds` | integer      | required by: `throttle_unauthenticated_enabled` | Rate limit period in seconds.  |
+| `throttle_unauthenticated_requests_per_period` | integer    | required by: `throttle_unauthenticated_enabled` | Max requests per period per IP. |
+| `two_factor_grace_period`                | integer          | required by: `require_two_factor_authentication` | Amount of time (in hours) that users are allowed to skip forced configuration of two-factor authentication. |
+| `unique_ips_limit_enabled`               | boolean          | no                                   | (**If enabled, requires:** `unique_ips_limit_per_user` and `unique_ips_limit_time_window`) Limit sign in from multiple ips. |
+| `unique_ips_limit_per_user`              | integer          | required by: `unique_ips_limit_enabled` | Maximum number of ips per user. |
+| `unique_ips_limit_time_window`           | integer          | required by: `unique_ips_limit_enabled` | How many seconds an IP will be counted towards the limit. |
+| `usage_ping_enabled`                     | boolean          | no                                   | Every week GitLab will report license usage back to GitLab, Inc. |
+| `user_default_external`                  | boolean          | no                                   | Newly registered users will be external by default. |
+| `user_oauth_applications`                | boolean          | no                                   | Allow users to register any application to use GitLab as an OAuth provider. |
+| `user_show_add_ssh_key_message`          | boolean          | no                                   | When set to `false` disable the "You won't be able to pull or push project code via SSH" warning shown to users with no uploaded SSH key. |
+| `version_check_enabled`                  | boolean          | no                                   | Let GitLab inform you when an update is available. |