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scadalink-design/test_infra.md

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# Test Infrastructure
This document describes the local Docker-based test infrastructure for ScadaLink development. Five services provide the external dependencies needed to run and test the system locally.
## Services
| Service | Image | Port(s) | Config |
|---------|-------|---------|--------|
| OPC UA Server | `mcr.microsoft.com/iotedge/opc-plc:latest` | 50000 (OPC UA), 8080 (web) | `infra/opcua/nodes.json` |
| LDAP Server | `glauth/glauth:latest` | 3893 | `infra/glauth/config.toml` |
| MS SQL 2022 | `mcr.microsoft.com/mssql/server:2022-latest` | 1433 | `infra/mssql/setup.sql` |
| SMTP (Mailpit) | `axllent/mailpit:latest` | 1025 (SMTP), 8025 (web) | Environment vars |
| REST API (Flask) | Custom build (`infra/restapi/Dockerfile`) | 5200 | `infra/restapi/app.py` |
## Quick Start
```bash
cd infra
docker compose up -d
```
After the first startup, run the SQL setup and seed scripts:
```bash
docker exec -i scadalink-mssql /opt/mssql-tools18/bin/sqlcmd \
-S localhost -U sa -P 'ScadaLink_Dev1#' -C \
-i /docker-entrypoint-initdb.d/setup.sql
docker exec -i scadalink-mssql /opt/mssql-tools18/bin/sqlcmd \
-S localhost -U sa -P 'ScadaLink_Dev1#' -C \
-i /docker-entrypoint-initdb.d/machinedata_seed.sql
```
## Per-Service Documentation
Each service has a dedicated document with configuration details, verification steps, and troubleshooting:
- [test_infra_opcua.md](test_infra_opcua.md) — OPC UA test server (Azure IoT OPC PLC)
- [test_infra_ldap.md](test_infra_ldap.md) — LDAP test server (GLAuth)
- [test_infra_db.md](test_infra_db.md) — MS SQL 2022 database
- [test_infra_smtp.md](test_infra_smtp.md) — SMTP test server (Mailpit)
- [test_infra_restapi.md](test_infra_restapi.md) — REST API test server (Flask)
## Connection Strings
For use in `appsettings.Development.json`:
```json
{
"ConnectionStrings": {
"ScadaLinkConfig": "Server=localhost,1433;Database=ScadaLinkConfig;User Id=scadalink_app;Password=ScadaLink_Dev1#;TrustServerCertificate=true",
"ScadaLinkMachineData": "Server=localhost,1433;Database=ScadaLinkMachineData;User Id=scadalink_app;Password=ScadaLink_Dev1#;TrustServerCertificate=true"
},
"Ldap": {
"Server": "localhost",
"Port": 3893,
"BaseDN": "dc=scadalink,dc=local",
"UseSsl": false
},
"OpcUa": {
"EndpointUrl": "opc.tcp://localhost:50000"
},
"Smtp": {
"Server": "localhost",
"Port": 1025,
"AuthMode": "None",
"FromAddress": "scada-notifications@company.com",
"ConnectionTimeout": 30
},
"ExternalSystems": {
"TestApi": {
"BaseUrl": "http://localhost:5200",
"AuthMode": "ApiKey",
"ApiKey": "scadalink-test-key-1"
}
}
}
```
## Stopping & Teardown
```bash
cd infra
docker compose down # stop containers, preserve SQL data volume
docker compose stop opcua # stop a single service (also: ldap, mssql, smtp, restapi)
```
**Full teardown** (removes volumes, optionally images and venv):
```bash
cd infra
./teardown.sh # stop containers + delete SQL data volume
./teardown.sh --images # also remove downloaded Docker images
./teardown.sh --all # also remove the Python venv
```
After a full teardown, the next `docker compose up -d` starts fresh — re-run the SQL setup script.
## Files
```
infra/
docker-compose.yml # All five services
teardown.sh # Teardown script (volumes, images, venv)
glauth/config.toml # LDAP users and groups
mssql/setup.sql # Database and user creation
mssql/machinedata_seed.sql # Machine Data tables, stored procedures, sample data
opcua/nodes.json # Custom OPC UA tag definitions
restapi/app.py # Flask REST API server
restapi/Dockerfile # REST API container build
tools/ # Python CLI tools (opcua, ldap, mssql, smtp, restapi)
README.md # Quick-start for the infra folder
```