Add air-gap adaptation documentation for Qt6 framework

- Document key changes from public to air-gapped environment - Include build instructions with proxy configuration - Add verification commands and security considerations - Reference related files and SBOM generation Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Entire-Checkpoint: 01M6PCAZ0X5197XH30FG4FXHRE
2026-11-05 17:33:05 +00:00
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+# Air-Gapped Environment Adaptation
+
+This document summarizes the adaptations made to the Qt6 framework Dockerfile for air-gapped environments.
+
+## Key Changes from Public to Air-Gapped Environment
+
+### 1. Repository Configuration
+- **Before**: Default Ubuntu repositories
+- **After**: Internal Nexus repositories
+  - APT: `http://remote-repo.sl.defence-elec.de:8081/repository/ubuntu`
+  - PyPI: `http://remote-repo.sl.defence-elec.de:8081/repository/proxypipy/`
+
+### 2. Proxy Configuration
+```bash
+http_proxy="http://10.198.80.130:3128"
+no_proxy="localhost,127.0.0.1,defence-elec.de,.defence-elec.de,sl.defence-elec.de,10.198.80.0/23,192.168.133.0/24,141.200.0.0/16,10.184.0.0/15,10.199.101.35,10.199.101.36,10.199.101.158"
+```
+
+### 3. Security Infrastructure
+- CA certificates installed from `http://10.198.80.75/rme/SL-Netz.crt`
+- APT signing keys from `http://10.198.80.75/rme/deb_and_rpm_signage_key.pub`
+
+### 4. User Management
+- User `ctc` (uid 1445, gid 1445) with home `/shd/CTC/TOOLS`
+- User `rme` (uid 1001, gid 1001) with home `/home/rme`
+
+### 5. Base Image
+- **Before**: `ubuntu:26.04`
+- **After**: `harbor.sl.defence-elec.de/proxydockerhub/library/ubuntu:26.04`
+
+### 6. Python Environment
+- Uses Python virtual environment (`/opt/venv`) instead of system pip
+- Prevents conflicts with system packages
+- Ensures reproducible aqtinstall version
+
+### 7. Runtime Mount Points
+- ArcGIS SDK: `/opt/ArcGIS/MapsSDK_Qt_300.0.0` (via `ARCGIS_SDK_ROOT`)
+- RTI Connext DDS: `/opt/RTI` (via `DDS_PATH`)
+
+## Build Instructions
+
+### Standard Build
+```bash
+docker build -t legatus-qt6-framework:6.10.2 \
+  --build-arg RME_USERPASS=your_password \
+  external-dependencies/qt6-framework/
+```
+
+### Air-Gapped Build with Proxy
+```bash
+docker build -t legatus-qt6-framework:6.10.2 \
+  --build-arg RME_USERPASS=your_password \
+  --build-arg http_proxy="http://10.198.80.130:3128" \
+  --build-arg https_proxy="http://10.198.80.130:3128" \
+  external-dependencies/qt6-framework/
+```
+
+### Runtime Usage
+```bash
+docker run -it \
+  -v /path/to/ArcGIS:/opt/ArcGIS \
+  -v /path/to/rti:/opt/RTI \
+  legatus-qt6-framework:6.10.2
+```
+
+## Verification
+
+After building, verify the installation:
+```bash
+docker run --rm legatus-qt6-framework:6.10.2 qmake6 --version
+docker run --rm legatus-qt6-framework:6.10.2 cmake --find-package \
+  -DNAME=Qt6 -DCOMPILER_ID=GNU -DLANGUAGE=CXX -DMODE=EXIST
+```
+
+## Security Considerations
+
+1. **Password Management**: Use Docker secrets or environment variables for `RME_USERPASS`
+2. **Certificate Validation**: Ensure CA certificates are valid and up-to-date
+3. **Network Isolation**: Container runs as non-root user `ctc`
+4. **SBOM Generation**: Run `generate-sbom.sh` after build for compliance
+
+## Related Files
+
+- `Dockerfile` - Main Dockerfile with air-gapped configuration
+- `Jenkinsfile` - CI/CD pipeline with SBOM generation
+- `README.md` - Usage documentation
+- `../scripts/generate-sbom.sh` - SBOM generation script