moved Reverse Engineering Notes to separate project
ref.: https://git.collinwebdesigns.de/nvidia/nls
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# Database structure
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## `request_routing.service_instance`
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| xid | org_name |
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|----------------------------------------|--------------------------|
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| `10000000-0000-0000-0000-000000000000` | `lic-000000000000000000` |
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- `xid` is used as `SERVICE_INSTANCE_XID`
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## `request_routing.license_allotment_service_instance`
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| xid | service_instance_xid | license_allotment_xid |
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|----------------------------------------|----------------------------------------|----------------------------------------|
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| `90000000-0000-0000-0000-000000000001` | `10000000-0000-0000-0000-000000000000` | `80000000-0000-0000-0000-000000000001` |
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- `xid` is only a primary-key and never used as foreign-key or reference
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- `license_allotment_xid` must be used to fetch `xid`'s from `request_routing.license_allotment_reference`
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## `request_routing.license_allotment_reference`
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| xid | license_allotment_xid |
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|----------------------------------------|----------------------------------------|
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| `20000000-0000-0000-0000-000000000001` | `80000000-0000-0000-0000-000000000001` |
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- `xid` is used as `scope_ref_list` on token request
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# Reverse Engineering Notes
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[[_TOC_]]
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# NLS Docker Stack
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- More about Docker Images https://git.collinwebdesigns.de/nvidia/nls
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## Appliance
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### Configuration data
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- Most variables and configs are stored in `/var/lib/docker/volumes/configurations/_data`.
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- Config-Variables are in `etc/dls/config/service_env.conf`.
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### NLS Logs
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Logs are found in `/var/lib/docker/volumes/logs/_data`.
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Most interesting logs are:
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- `fileInstallation.log`
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- `serviceInstance.log`
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### File manipulation and copy
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- Files can be copied with `docker cp <container-id>:/venv/... /opt/localfile/...`.
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- Files can be directly edited via Docker-Volume mounts
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- see `df -h` (one is nls, the other postgres container)
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```
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overlay 16G 11G 5.6G 66% /var/lib/docker/overlay2/<hash>/merged
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overlay 16G 11G 5.6G 66% /var/lib/docker/overlay2/<hash>/merged
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```
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- then you can edit files with e.g. `nano venv/lib/python3.12/site-packages/...`
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### Other tools / files
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Other tools / files which may can helpful, but not known for what they are used.
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- `/etc/dls/config/decryptor/decryptor`
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- `/etc/dls/config/site_key_uri.bin`
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- `/etc/dls/config/dls_db_password.bin`
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## Database
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- It's enough to manipulate database licenses. There must not be changed any line of code to bypass licensing
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validations.
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Valid users are `dls_writer` and `postgres`.
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```shell
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docker exec -it <dls:pgsql> psql -h localhost -U postgres
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```
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If you want external access to database, you have to add `ports: [ 5432:5432 ]` to postgres section in
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`docker-compose.yml`.
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Then you can *exec* into container with `psql` and add a new superuser:
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```sql
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CREATE
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USER admin WITH LOGIN SUPERUSER PASSWORD 'admin';
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```
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# Logging / Stack Trace
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- https://docs.nvidia.com/license-system/latest/nvidia-license-system-user-guide/index.html#troubleshooting-dls-instance
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# Nginx
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- NGINX uses `/opt/certs/cert.pem` and `/opt/certs/key.pem`
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# Usefully commands on Client
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## Check licensing status
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- `nvidia-smi -q | grep "License"`
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**Output**
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```
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vGPU Software Licensed Product
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License Status : Licensed (Expiry: 2023-1-14 12:59:52 GMT)
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```
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## Track licensing progress
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- NVIDIA Grid Log: `journalctl -u nvidia-gridd -f`
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```
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systemd: Started NVIDIA Grid Daemon.
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nvidia-gridd: Configuration parameter ( ServerAddress ) not set
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nvidia-gridd: vGPU Software package (0)
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nvidia-gridd: Ignore service provider and node-locked licensing
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nvidia-gridd: NLS initialized
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nvidia-gridd: Acquiring license. (Info: license.nvidia.space; NVIDIA RTX Virtual Workstation)
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nvidia-gridd: License acquired successfully. (Info: license.nvidia.space, NVIDIA RTX Virtual Workstation; Expiry: 2023-1-29 22:3:0 GMT)
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```
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