diff --git a/docs/development/application-architecture/README.md b/docs/development/application-architecture/README.md
index bf329411039a..fc5e31efff3a 100644
--- a/docs/development/application-architecture/README.md
+++ b/docs/development/application-architecture/README.md
@@ -28,6 +28,7 @@ flowchart TD
idp["Identity provider (idp)"]
nex["Nextcloud (nex)"]
gih["GitHub (gih)"]
+ gil["GitLab (gil)"]
cal["Calendar (cal)"]
O["API integrations (api)"]
W["Outgoing webhooks"]
@@ -57,25 +58,26 @@ end
## Involved services
-| Service | Relationship to OpenProject | Communication interfaces and mechanisms | Access modes
(R - read)
(W - write) | References |
-|-------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| Web browser | Performs requests to the application | HTTPS | RW | n/a |
-| Native client | Performs requests to the application | HTTPS | RW | n/a |
-| SVN client | Performs SVN requests to the application web server | HTTPS | RW | [Repository integrations](../../user-guide/repository/) |
-| Git client | Performs Git Smart HTTP requests to the application server | HTTPS | RW | [Repository integrations](../../user-guide/repository/) |
-| Load balancer / Proxy | Depending on installation mechanism, terminates TLS/SSL, accepts and proxies or load balances web requests to the different OpenProject web application servers | HTTPS / PROXY | - | [Configuration for packaged installations](../../installation-and-operations/installation/packaged/#step-3-apache2-web-server-and-ssl-termination)
[Configuration for Docker/Kubernetes](../../installation-and-operations/installation/docker/#disabling-https-mode) |
-| Puma application server | Accepts web requests, runs the OpenProject web facing application | Web requests (HTTP/HTTPS)
Database (TCP)
Memcached (TCP)
Email gateways (SMTP)
External integration requests (HTTPS) | RW | [Database TLS setup](../../installation-and-operations/configuration/#database-configuration-and-ssl)
[Cache configuration](../../installation-and-operations/configuration/#cache-configuration-options)
[SMTP configuration](../../installation-and-operations/configuration/outbound-emails/)
[Integrations guide](../../system-admin-guide/integrations/) |
-| Memcached / Redis / File cache | Application-level cache (if enabled) | TCP connections | RW | [Cache configuration](../../installation-and-operations/configuration/#cache-configuration-options) |
-| PostgreSQL | Database management system | (Encrypted) TCP connections between web and background workers | | [Database TLS setup](../../installation-and-operations/configuration/#database-configuration-and-ssl)
|
-| Background worker | Handles asynchronous jobs, such as backup requests, email delivery, | Database (TCP)
Memcached (TCP)
Email gateways (SMTP)
External integration requests (HTTPS) | RW | [Database TLS setup](../../installation-and-operations/configuration/#database-configuration-and-ssl)
[Cache configuration](../../installation-and-operations/configuration/#cache-configuration-options)
[SMTP configuration](../../installation-and-operations/configuration/outbound-emails/)
[Integrations guide](../../system-admin-guide/integrations/) |
-| Attached storages or Object storage | Access for attachments for the OpenProject application.
Either directly (or networked) attached storages, or configuration of an S3-compatible Object store | Local filesystem access (local drives, NFS)
HTTPS (S3-compatible storage) | RW | [Configuration of the attachment storage](../../installation-and-operations/configuration/#attachments-storage) |
-| Email gateways | Send emails (e.g., notifications) from OpenProject application | SMTP | W (deliver mails to relay) | [SMTP configuration](../../installation-and-operations/configuration/outbound-emails/) |
-| Identity providers | External authentication providers (e.g., Keycloak, ADFS, etc.) | HTTPS through standard protocols (OpenID connect, SAML, OAuth 2.0) | R (Redirect and read user info) | [OpenID connect provider configuration](../../system-admin-guide/authentication/openid-providers/)
[SAML provider configuration](../../system-admin-guide/authentication/saml/)
[OAuth 2.0 application configuration](../../system-admin-guide/authentication/oauth-applications/) |
-| Nextcloud | External bilateral integration | HTTPS | RW | [Nextcloud integration guide](../../system-admin-guide/integrations/nextcloud/) |
-| GitHub | Pull Request / Issue referencing Integration into OpenProject | HTTPS (Webhooks) | R (Incoming webhook from GitHub) | [GitHub integration guide](../../system-admin-guide/integrations/github-integration/) |
-| Calendars | External calendars requesting dynamic ICS calendar files from OpenProject | HTTPS (iCalendar/webdav) | R (Outgoing calendar data) | [Calendar subscriptions configuration](../../system-admin-guide/calendars-and-dates/#calendar-subscriptions) |
-| API integrations | Structural access to OpenProject through API endpoints. Optional access to users and third party organizations depending on authorized scopes | HTTPS | (Optional) R
(Optional) W
| [API configuration](../../system-admin-guide/api-and-webhooks/) |
-| Outgoing Webhooks | Outgoing requests for changes within the application | HTTPS | R (Outgoing webhook data) | [Webhook configuration an administration](../../system-admin-guide/api-and-webhooks/#webhooks) |
+| Service | Relationship to OpenProject | Communication interfaces and mechanisms | Access modes
(R - read)
(W - write) | References |
+| ----------------------------------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ----------------------------------------- | ------------------------------------------------------------ |
+| Web browser | Performs requests to the application | HTTPS | RW | n/a |
+| Native client | Performs requests to the application | HTTPS | RW | n/a |
+| SVN client | Performs SVN requests to the application web server | HTTPS | RW | [Repository integrations](../../user-guide/repository/) |
+| Git client | Performs Git Smart HTTP requests to the application server | HTTPS | RW | [Repository integrations](../../user-guide/repository/) |
+| Load balancer / Proxy | Depending on installation mechanism, terminates TLS/SSL, accepts and proxies or load balances web requests to the different OpenProject web application servers | HTTPS / PROXY | - | [Configuration for packaged installations](../../installation-and-operations/installation/packaged/#step-3-apache2-web-server-and-ssl-termination)
[Configuration for Docker/Kubernetes](../../installation-and-operations/installation/docker/#disabling-https-mode) |
+| Puma application server | Accepts web requests, runs the OpenProject web facing application | Web requests (HTTP/HTTPS)
Database (TCP)
Memcached (TCP)
Email gateways (SMTP)
External integration requests (HTTPS) | RW | [Database TLS setup](../../installation-and-operations/configuration/#database-configuration-and-ssl)
[Cache configuration](../../installation-and-operations/configuration/#cache-configuration-options)
[SMTP configuration](../../installation-and-operations/configuration/outbound-emails/)
[Integrations guide](../../system-admin-guide/integrations/) |
+| Memcached / Redis / File cache | Application-level cache (if enabled) | TCP connections | RW | [Cache configuration](../../installation-and-operations/configuration/#cache-configuration-options) |
+| PostgreSQL | Database management system | (Encrypted) TCP connections between web and background workers | | [Database TLS setup](../../installation-and-operations/configuration/#database-configuration-and-ssl)
|
+| Background worker | Handles asynchronous jobs, such as backup requests, email delivery, | Database (TCP)
Memcached (TCP)
Email gateways (SMTP)
External integration requests (HTTPS) | RW | [Database TLS setup](../../installation-and-operations/configuration/#database-configuration-and-ssl)
[Cache configuration](../../installation-and-operations/configuration/#cache-configuration-options)
[SMTP configuration](../../installation-and-operations/configuration/outbound-emails/)
[Integrations guide](../../system-admin-guide/integrations/) |
+| Attached storages or Object storage | Access for attachments for the OpenProject application.
Either directly (or networked) attached storages, or configuration of an S3-compatible Object store | Local filesystem access (local drives, NFS)
HTTPS (S3-compatible storage) | RW | [Configuration of the attachment storage](../../installation-and-operations/configuration/#attachments-storage) |
+| Email gateways | Send emails (e.g., notifications) from OpenProject application | SMTP | W (deliver mails to relay) | [SMTP configuration](../../installation-and-operations/configuration/outbound-emails/) |
+| Identity providers | External authentication providers (e.g., Keycloak, ADFS, etc.) | HTTPS through standard protocols (OpenID connect, SAML, OAuth 2.0) | R (Redirect and read user info) | [OpenID connect provider configuration](../../system-admin-guide/authentication/openid-providers/)
[SAML provider configuration](../../system-admin-guide/authentication/saml/)
[OAuth 2.0 application configuration](../../system-admin-guide/authentication/oauth-applications/) |
+| Nextcloud | External bilateral integration | HTTPS | RW | [Nextcloud integration guide](../../system-admin-guide/integrations/nextcloud/) |
+| GitHub | Pull Request / Issue referencing Integration into OpenProject | HTTPS (Webhooks) | R (Incoming webhook from GitHub) | [GitHub integration guide](../../system-admin-guide/integrations/github-integration/) |
+| GitLab | Merge Request / Issue referencing Integration into OpenProject | HTTPS (Webhooks) | R (Incoming webhook from GitLab) | [GitLab integration guide](../../system-admin-guide/integrations/gitlab-integration/) |
+| Calendars | External calendars requesting dynamic ICS calendar files from OpenProject | HTTPS (iCalendar/webdav) | R (Outgoing calendar data) | [Calendar subscriptions configuration](../../system-admin-guide/calendars-and-dates/#calendar-subscriptions) |
+| API integrations | Structural access to OpenProject through API endpoints. Optional access to users and third party organizations depending on authorized scopes | HTTPS | (Optional) R
(Optional) W
| [API configuration](../../system-admin-guide/api-and-webhooks/) |
+| Outgoing Webhooks | Outgoing requests for changes within the application | HTTPS | R (Outgoing webhook data) | [Webhook configuration an administration](../../system-admin-guide/api-and-webhooks/#webhooks) |
# Software