add dbgate and mssql

README.md

@@ -25,6 +25,7 @@ SilverLinux is the primary self-hosted platform for Silver Solutions and hosts s
 ### Running
 
 * PostgreSQL
+* Microsoft SQL Server 2022 Express
 * Gitea
 * OpenProject
 * Jitsi Meet
@@ -32,6 +33,7 @@ SilverLinux is the primary self-hosted platform for Silver Solutions and hosts s
 * Nginx Proxy Manager
 * BaGet
 * Gitea Actions Runner
+* DbGate
 
 ### Planned
 
@@ -66,9 +68,11 @@ Secrets are stored outside the repository:
 
 ```text
 baget/
+dbgate/
 docs/
 gitea/
 jitsi/
+mssql/
 nginx-proxy-manager/
 openproject/
 portainer/

SUMMARY.md

@@ -1,6 +1,6 @@
 # SilverLinux Infrastructure Summary
 
-Last Updated: 2026-06-21
+Last Updated: 2026-06-22
 
 ## Overview
 
@@ -19,6 +19,7 @@ The platform hosts source control, project management, video conferencing, conta
 | Portainer   | https://portainer.silveressence.net |
 | Jitsi Meet  | https://meet.silveressence.net      |
 | BaGet       | https://nuget.silveressence.net     |
+| DbGate      | https://dbgate.silveressence.net    |
 
 ---
 
@@ -91,6 +92,24 @@ Purpose:
 
 ---
 
+### Microsoft SQL Server Express
+
+Purpose:
+
+* Support projects requiring Microsoft SQL Server
+* Provide a private SQL Server 2022 Express platform
+
+Access:
+
+* Docker `internal` network only
+* Port 1433 is not publicly exposed
+
+Status:
+
+* Operational
+
+---
+
 ### Portainer
 
 Purpose:
@@ -139,6 +158,24 @@ Status:
 
 ---
 
+### DbGate
+
+Purpose:
+
+* Browser-based MSSQL and PostgreSQL administration
+
+Access:
+
+* https://dbgate.silveressence.net
+* HTTPS through Nginx Proxy Manager
+* Username and password required
+
+Status:
+
+* Operational
+
+---
+
 ## Shared Infrastructure
 
 ### Docker
@@ -166,7 +203,9 @@ Contains:
 
 * SMTP credentials
 * PostgreSQL passwords
+* MSSQL SA password
 * OpenProject secrets
+* Future DbGate password
 * Future OAuth secrets
 
 This file must never be committed to Git.

dbgate/README.md

@@ -0,0 +1,135 @@
+# DbGate
+
+## Overview
+
+DbGate is the HTTPS-accessible database administration portal for SilverLinux.
+
+URL:
+
+```text
+https://dbgate.silveressence.net
+```
+
+Status:
+
+```text
+Operational
+```
+
+It administers private Microsoft SQL Server and PostgreSQL instances without exposing either database server directly to the internet.
+
+---
+
+## Service Information
+
+| Property | Value |
+| --- | --- |
+| Container | `dbgate` |
+| Image | `dbgate/dbgate:latest` |
+| Application port | `3000` |
+| Networks | `internal`, `proxy` |
+| Compose location | `/srv/docker/dbgate/docker-compose.yml` |
+| Data location | `/srv/docker/dbgate/data` |
+
+The `internal` network provides database access. The `proxy` network connects DbGate to Nginx Proxy Manager.
+
+---
+
+## Reverse Proxy
+
+| Setting | Value |
+| --- | --- |
+| Domain | `dbgate.silveressence.net` |
+| Scheme | `http` |
+| Forward host | `dbgate` |
+| Forward port | `3000` |
+| SSL | Let's Encrypt |
+| Force SSL | Enabled |
+| HTTP/2 | Enabled |
+
+Only DbGate is publicly accessible. MSSQL port `1433` and PostgreSQL port `5432` remain private.
+
+---
+
+## Authentication
+
+DbGate requires a username and password before granting access. The initial unauthenticated deployment was corrected by configuring `LOGIN` and `PASSWORD`.
+
+The running server currently stores the DbGate credentials directly in its Compose configuration. The repository intentionally does not contain the password; its Compose definition resolves `DBGATE_PASSWORD` from the deployment environment.
+
+Planned improvement:
+
+* Add `DBGATE_PASSWORD` to `/srv/secrets/company.env`.
+* Deploy with `docker compose --env-file /srv/secrets/company.env up -d`.
+* Remove the credential from the server-side Compose file.
+
+---
+
+## Database Connections
+
+### SilverLinux MSSQL
+
+| Setting | Value |
+| --- | --- |
+| Engine | SQL Server |
+| Server | `mssql` |
+| Port | `1433` |
+| Default database | `master` |
+| User | `sa` |
+| Encrypt | Yes |
+| Trust server certificate | Yes |
+
+The connection was validated against `master`, `model`, `msdb` and `tempdb`.
+
+PostgreSQL is also reachable through the shared `internal` network using hostname `postgres` and port `5432`.
+
+---
+
+## Validation
+
+```bash
+docker ps
+docker logs dbgate
+```
+
+Expected log message:
+
+```text
+DbGate API listening on port 3000
+```
+
+---
+
+## Architecture
+
+```text
+Internet
+  -> Nginx Proxy Manager
+  -> DbGate
+       -> MSSQL 2022 Express
+       -> PostgreSQL 17
+```
+
+---
+
+## Backup Requirements
+
+Back up:
+
+```text
+/srv/docker/dbgate/data
+```
+
+Also retain the Compose definition, Nginx Proxy Manager configuration and DbGate credential through the centralized secrets backup after migration.
+
+---
+
+## Related Documentation
+
+* mssql/README.md
+* postgres/README.md
+* nginx-proxy-manager/README.md
+* docs/domains.md
+* docs/security.md
+* docs/secrets.md
+* docs/backups.md

dbgate/docker-compose.yml

@@ -0,0 +1,19 @@
+services:
+  dbgate:
+    image: dbgate/dbgate:latest
+    container_name: dbgate
+    restart: unless-stopped
+    environment:
+      LOGIN: admin
+      PASSWORD: ${DBGATE_PASSWORD}
+    volumes:
+      - /srv/docker/dbgate/data:/root/.dbgate
+    networks:
+      - internal
+      - proxy
+
+networks:
+  internal:
+    external: true
+  proxy:
+    external: true

docs/AI_CONTEXT.md

@@ -19,6 +19,7 @@ Public IP: 51.255.83.140
 ## Core Services
 
 * PostgreSQL
+* Microsoft SQL Server 2022 Express
 * Gitea
 * OpenProject
 * Jitsi Meet
@@ -26,6 +27,7 @@ Public IP: 51.255.83.140
 * Nginx Proxy Manager
 * BaGet
 * Gitea Actions Runner (`silverlinux-runner`)
+* DbGate
 
 ## Domains
 
@@ -39,6 +41,8 @@ portainer.silveressence.net -> Portainer
 
 nuget.silveressence.net -> BaGet (through Nginx Proxy Manager)
 
+dbgate.silveressence.net -> DbGate (through Nginx Proxy Manager)
+
 ## Secrets
 
 Secrets are stored in:
@@ -54,10 +58,19 @@ Always use env_file.
 proxy
 internal
 
+MSSQL is attached only to `internal`. DbGate is attached to both `internal` and `proxy`.
+
 ## Authentication
 
 Gitea:
 
+* Local accounts
+* OpenID disabled
+* Google OAuth planned
+* GitHub OAuth planned
+
+OpenProject:
+
 * Local accounts
 
 ## CI/CD
@@ -69,13 +82,14 @@ The global self-hosted runner is operational at `/srv/docker/gitea-runner` with
 Silver 2.0 uses `.gitea/workflows/package.yml` to publish NuGet packages to BaGet when a push to `net-8-version` has a commit message containing `[Package]`.
 
 The runner registration token is stored in `/srv/secrets/company.env`. The BaGet publishing key is stored as the repository Actions secret `BAGET_API_KEY`.
-* OpenID disabled
-* Google OAuth planned
-* GitHub OAuth planned
 
-OpenProject:
+## Databases
 
-* Local accounts
+PostgreSQL 17 and Microsoft SQL Server 2022 Express are operational.
+
+MSSQL uses hostname `mssql` on the `internal` Docker network. Port 1433 is not published.
+
+DbGate provides authenticated HTTPS administration for MSSQL and PostgreSQL at `https://dbgate.silveressence.net`.
 
 ## Documentation
 
@@ -94,3 +108,5 @@ and the README.md of each service folder before making infrastructure recommenda
 * PostgreSQL selected as shared database platform
 * BaGet deployed at nuget.silveressence.net through Nginx Proxy Manager
 * Gitea Actions and a global self-hosted runner selected for package publishing
+* MSSQL Express deployed alongside PostgreSQL
+* DbGate selected as the database administration portal

docs/backups.md

@@ -28,6 +28,28 @@ Critical
 
 ---
 
+#### Microsoft SQL Server
+
+Data location:
+
+```text
+/srv/docker/mssql/data
+```
+
+Required:
+
+* Native SQL Server database backups
+* MSSQL Compose configuration
+* `MSSQL_SA_PASSWORD` from the shared secrets backup
+
+Importance:
+
+Critical
+
+Do not rely on copying live database files as the only backup method.
+
+---
+
 #### Gitea Data
 
 Location:
@@ -81,7 +103,9 @@ Contains:
 
 * SMTP credentials
 * PostgreSQL passwords
+* MSSQL SA password
 * OpenProject secrets
+* Future DbGate password
 * Future OAuth secrets
 
 Importance:
@@ -196,6 +220,27 @@ Medium
 
 ---
 
+#### DbGate Data
+
+Location:
+
+```text
+/srv/docker/dbgate/data
+```
+
+Contains:
+
+* Saved connections
+* DbGate application state
+
+Also retain the Nginx Proxy Manager route and DbGate authentication credential.
+
+Importance:
+
+Medium
+
+---
+
 ## Backup Storage
 
 Current Location:
@@ -247,15 +292,17 @@ Keep:
 
 Restore order:
 
-1. PostgreSQL
+1. Shared secrets
-2. Shared secrets
+2. PostgreSQL
-3. Nginx Proxy Manager
+3. Microsoft SQL Server
-4. Gitea
+4. Nginx Proxy Manager
-5. OpenProject
+5. Gitea
-6. Portainer
+6. OpenProject
-7. Jitsi
+7. Portainer
-8. BaGet
+8. Jitsi
-9. Gitea Actions Runner
+9. BaGet
+10. Gitea Actions Runner
+11. DbGate
 
 ---
 
@@ -289,7 +336,7 @@ data directories.
 
 ### Step 4
 
-Restore PostgreSQL databases.
+Restore PostgreSQL and Microsoft SQL Server databases.
 
 ### Step 5
 
@@ -314,3 +361,5 @@ Verify:
 * postgres/README.md
 * gitea/README.md
 * openproject/README.md
+* mssql/README.md
+* dbgate/README.md

docs/decisions.md

@@ -274,6 +274,54 @@ when additional services begin consuming the same secret management approach.
 
 ---
 
+## 2026-06-22 - Deploy Microsoft SQL Server Express Alongside PostgreSQL
+
+Decision:
+
+* Run Microsoft SQL Server 2022 Express alongside PostgreSQL.
+* Attach MSSQL only to the `internal` Docker network.
+* Do not publish port `1433` or route MSSQL through the reverse proxy.
+* Store `MSSQL_SA_PASSWORD` in `/srv/secrets/company.env`.
+
+Reason:
+
+* Support Silver projects that require Microsoft SQL Server compatibility.
+* Allow both database platforms to coexist without exposing database ports.
+
+Status:
+
+```text
+Implemented
+```
+
+---
+
+## 2026-06-22 - Select DbGate for Database Administration
+
+Decision:
+
+* Use DbGate to administer Microsoft SQL Server and PostgreSQL.
+* Connect DbGate to both the `internal` and `proxy` Docker networks.
+* Publish only the DbGate web interface through Nginx Proxy Manager.
+* Require DbGate authentication and HTTPS.
+
+Reason:
+
+* Provides one lightweight, modern browser interface for both database platforms.
+* Keeps PostgreSQL and MSSQL private.
+
+Follow-up:
+
+Move the DbGate password from the server-side Compose configuration to `/srv/secrets/company.env`.
+
+Status:
+
+```text
+Implemented
+```
+
+---
+
 ## Future Decisions
 
 Document future decisions using the following template:

docs/domains.md

@@ -145,6 +145,38 @@ Active
 
 ---
 
+### DbGate
+
+Domain:
+
+```text
+dbgate.silveressence.net
+```
+
+Purpose:
+
+* HTTPS database administration portal
+
+Container:
+
+```text
+dbgate
+```
+
+Routing:
+
+```text
+Nginx Proxy Manager -> dbgate:3000
+```
+
+Status:
+
+```text
+Active
+```
+
+---
+
 ## DNS
 
 DNS records should point to:

docs/secrets.md

@@ -67,6 +67,19 @@ Used by:
 
 ---
 
+### Microsoft SQL Server
+
+```text
+MSSQL_SA_PASSWORD
+```
+
+Used by:
+
+* Microsoft SQL Server 2022 Express
+* DbGate's MSSQL connection
+
+---
+
 ### OpenProject
 
 ```text
@@ -132,6 +145,25 @@ Future use:
 
 ---
 
+### DbGate Credential Migration
+
+The running DbGate deployment currently has its login credential in the server-side Compose configuration. Move the password to:
+
+```text
+/srv/secrets/company.env
+DBGATE_PASSWORD
+```
+
+The repository Compose definition already references `DBGATE_PASSWORD` and contains no real password.
+
+Status:
+
+```text
+Migration pending
+```
+
+---
+
 ## Rules
 
 * Never commit secrets to Git.

docs/security.md

@@ -72,6 +72,7 @@ Examples:
 
 * SMTP credentials
 * PostgreSQL passwords
+* MSSQL SA password
 * OpenProject secrets
 * Future OAuth secrets
 
@@ -169,11 +170,13 @@ Priority:
 
 ## Database Security
 
-PostgreSQL is not exposed publicly.
+PostgreSQL and Microsoft SQL Server are not exposed publicly.
 
 Database access is restricted to Docker internal networks.
 
-Applications communicate with PostgreSQL through the internal Docker network.
+Applications and DbGate communicate with the database containers through the `internal` Docker network.
+
+DbGate is the public administration entry point and must require authentication and HTTPS. Its web interface is routed through Nginx Proxy Manager; database ports `5432` and `1433` remain private.
 
 ---
 

docs/server.md

@@ -50,7 +50,13 @@ Purpose:
 
 Purpose:
 
-* Shared database platform
+* Primary PostgreSQL database platform
+
+### Microsoft SQL Server Express
+
+Purpose:
+
+* Private SQL Server platform for compatible applications
 
 ### Fail2Ban
 
@@ -93,6 +99,7 @@ Examples:
 * OpenProject
 * Jitsi Meet
 * Portainer
+* DbGate
 
 ---
 
@@ -106,6 +113,8 @@ Examples:
 * Nginx Proxy Manager
 * BaGet
 * Gitea Actions Runner
+* Microsoft SQL Server 2022 Express
+* DbGate
 
 ---
 
@@ -128,6 +137,8 @@ Contains:
 /srv/docker/nginx-proxy-manager
 /srv/docker/baget
 /srv/docker/gitea-runner
+/srv/docker/mssql
+/srv/docker/dbgate
 ```
 
 ---
@@ -143,6 +154,8 @@ Contains:
 * SMTP credentials
 * Database passwords
 * Application secrets
+* MSSQL SA password
+* Future DbGate password
 * Future OAuth credentials
 
 ---
@@ -189,6 +202,22 @@ Suggested structure:
 
 ---
 
+### Microsoft SQL Server Express
+
+```text
+/srv/docker/mssql/data
+```
+
+---
+
+### DbGate
+
+```text
+/srv/docker/dbgate/data
+```
+
+---
+
 ### Nginx Proxy Manager
 
 ```text
@@ -252,6 +281,8 @@ Implemented:
 * Shared secrets stored outside Git repositories
 * SSL certificates managed through Nginx Proxy Manager
 * PostgreSQL not exposed publicly
+* MSSQL port 1433 not exposed publicly
+* Database administration is available only through authenticated HTTPS access to DbGate
 * OpenID disabled in Gitea
 
 ---

docs/services.md

@@ -135,6 +135,38 @@ Running
 
 ---
 
+### Microsoft SQL Server Express
+
+Purpose:
+
+* Support applications requiring Microsoft SQL Server
+* Run alongside PostgreSQL as a private database platform
+
+Image:
+
+```text
+mcr.microsoft.com/mssql/server:2022-latest
+```
+
+Network:
+
+```text
+internal
+```
+
+Exposure:
+
+* Port 1433 is not published
+* Not routed through Nginx Proxy Manager
+
+Status:
+
+```text
+Operational
+```
+
+---
+
 ### BaGet
 
 URL:
@@ -202,6 +234,38 @@ Operational
 
 ---
 
+### DbGate
+
+URL:
+
+```text
+https://dbgate.silveressence.net
+```
+
+Purpose:
+
+* Browser-based MSSQL administration
+* Browser-based PostgreSQL administration
+
+Networks:
+
+* `internal` for private database connectivity
+* `proxy` for Nginx Proxy Manager
+
+Security:
+
+* HTTPS enforced
+* DbGate username and password required
+* Database ports remain private
+
+Status:
+
+```text
+Operational
+```
+
+---
+
 ## Shared Infrastructure
 
 ### Docker

mssql/README.md

@@ -0,0 +1,117 @@
+# Microsoft SQL Server Express
+
+## Overview
+
+Microsoft SQL Server 2022 Express runs alongside PostgreSQL for Silver projects that require Microsoft SQL Server compatibility.
+
+Status:
+
+```text
+Operational
+```
+
+Verified version:
+
+```text
+Microsoft SQL Server 2022 Express Edition (64-bit)
+Linux
+Version 16.0.4255.1
+```
+
+---
+
+## Service Information
+
+| Property | Value |
+| --- | --- |
+| Container | `mssql` |
+| Image | `mcr.microsoft.com/mssql/server:2022-latest` |
+| Edition | Express |
+| Docker network | `internal` |
+| Compose location | `/srv/docker/mssql/docker-compose.yml` |
+| Data location | `/srv/docker/mssql/data` |
+
+Port `1433` is not published by Docker or exposed through Nginx Proxy Manager. Applications connect privately over the `internal` Docker network using hostname `mssql`.
+
+Server-side administration must use `docker exec` or another container attached to `internal`; there is no host-bound SQL port in the current configuration.
+
+---
+
+## Secrets
+
+The SA password is stored outside the repository:
+
+```text
+/srv/secrets/company.env
+MSSQL_SA_PASSWORD
+```
+
+Never commit the value to Git or place it directly in the Compose file.
+
+---
+
+## Deployment
+
+Docker Compose must be given the secrets file for interpolation:
+
+```bash
+cd /srv/docker/mssql
+docker compose --env-file /srv/secrets/company.env up -d
+```
+
+The Compose `env_file:` setting passes variables into the container. It does not make them available while Compose resolves `${MSSQL_SA_PASSWORD}`, which is why `--env-file` is required.
+
+Validate startup:
+
+```bash
+docker ps
+docker logs mssql
+```
+
+Expected log message:
+
+```text
+SQL Server is now ready for client connections.
+```
+
+---
+
+## Data Directory Permissions
+
+The SQL Server container runs as UID and GID `10001`. For a new, empty deployment, initialize the bind-mounted directory with:
+
+```bash
+sudo mkdir -p /srv/docker/mssql/data
+sudo chown -R 10001:10001 /srv/docker/mssql/data
+sudo chmod -R 700 /srv/docker/mssql/data
+```
+
+Do not delete or recreate the directory after databases exist. Removing `/srv/docker/mssql/data` destroys the persisted SQL Server data.
+
+---
+
+## Troubleshooting
+
+### Variable Is Not Set
+
+If Compose reports that `MSSQL_SA_PASSWORD` is unset and defaults to a blank string, use the required `docker compose --env-file /srv/secrets/company.env up -d` command.
+
+### System Directory Permission Denied
+
+If `[/.system]` cannot be created, verify that `/srv/docker/mssql/data` is owned by `10001:10001` with mode `700`.
+
+### Password Validation Failed
+
+Confirm that the password meets SQL Server complexity requirements and that Compose resolved `MSSQL_SA_PASSWORD` from the secrets file.
+
+---
+
+## Related Documentation
+
+* docs/server.md
+* docs/services.md
+* docs/security.md
+* docs/secrets.md
+* docs/backups.md
+* dbgate/README.md
+* postgres/README.md

mssql/docker-compose.yml

@@ -0,0 +1,19 @@
+services:
+  mssql:
+    image: mcr.microsoft.com/mssql/server:2022-latest
+    container_name: mssql
+    restart: unless-stopped
+    env_file:
+      - /srv/secrets/company.env
+    environment:
+      ACCEPT_EULA: Y
+      MSSQL_PID: Express
+      MSSQL_SA_PASSWORD: ${MSSQL_SA_PASSWORD}
+    volumes:
+      - /srv/docker/mssql/data:/var/opt/mssql
+    networks:
+      - internal
+
+networks:
+  internal:
+    external: true

nginx-proxy-manager/README.md

@@ -99,6 +99,7 @@ Examples:
 | meet.silveressence.net      | Jitsi          |
 | portainer.silveressence.net | Portainer      |
 | nuget.silveressence.net     | BaGet          |
+| dbgate.silveressence.net    | DbGate         |
 
 ---
 
@@ -195,6 +196,7 @@ Without these directories:
 * Jitsi Meet
 * Portainer
 * BaGet
+* DbGate
 
 ---
 

postgres/README.md

@@ -2,7 +2,7 @@
 
 ## Overview
 
-PostgreSQL is the central database platform for SilverLinux.
+PostgreSQL is the primary open-source database platform for SilverLinux and coexists with Microsoft SQL Server 2022 Express.
 
 Multiple applications use the same PostgreSQL instance while maintaining separate databases and database users.
 
@@ -278,6 +278,8 @@ Without the secrets file, applications may not be able to reconnect to their dat
 
 * Gitea
 * OpenProject
+* DbGate
+* Microsoft SQL Server Express
 
 ## Related Documentation