| `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 masters can push new commits, force push, or delete the branch)_, `1`_(partially protected, developers and masters can push new commits, but cannot force push or delete the branch)_ or `2`_(fully protected, developers cannot push new commits, but masters 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 |
| `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_id` | string | no | The group that is allowed to enable the performance bar |
| `performance_bar_enabled` | boolean | no | 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. |
| `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 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_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. |
