LoTAF (Level of Trust Assessment Function)

LoTAF is an open-source trustworthy function for designing, deploying and ensuring that end-users' trust requirements are fulfilling during an end-to-end business relationship. By using LoTAF, you may declare trust as an intent to orchestrate 6G network services and guarantee a Trust Level Agreement in a multi-domain and multi-stakeholder scenario.

🔧 Features

• 📡 Real-time trust assurance reports
• 🔍 Structured data representation using JSON and YANG data models
• 🧠 Customized ontology for trust management and Computing Continuum
• 🔗 Interoperability with Service Assurance IBN RFC 9417
• 🚀 RESTful Public API for programmatic access
• 🐳 Dockerized deployment for easy setup

⚙️ Installation

1. Clone the repository:

   git clone https://github.com/CyberDataLab/level-of-trust-framework.git
   

2. Navigate to the project directory:

   cd intent-assurance/dxagent-master/
   

3. Determine your installation approach:

Option 1 (Recommended): Run our ad-hoc shell which contemplates your central processing unit, your deployment preferences, and create a virtual environment, and set required certificates for gNMI exporter and Kafka Bus. The installation and deploy is as follows:

📊 DxAgent setup

This is the enhanced monitoring agent contemplated in LoTAF to continuously get real-time data. It is highly recommended to run sudo ./setup.sh to install every necessary dependency.

Afterwards, the script describes the next steps to activate the virtual environment previously created and to run the DxAgent after its proper installation.

Activete virtual environment:

 source $VENV_DIR/bin/activate

Run DxAgent:

sudo $VENV_DIR/bin/python dxagent (start|stop|status)

After launching the DxAgent, it is highly recommended to check the status via

• sudo $VENV_DIR/bin/python dxagent status

The logs associated with DxAgent can be found at

• /var/log/dxagent.log

In order to uninstall everything installed in setup.sh except python3, run sudo ./uninstall.sh.

Option 2: Use the installation and deployment configuration from the baseline DxAgent. Follow the README.md file inside cd intent-assurance/dxagent-master/.

🕹️ Usage

1. Start the DxCollector service:

After running the DxAgent, it is required to launch DxCollector to observe health scores. DxCollector is an interface that collects the DxAgent data and stores it in json/yaml files while sending it to Kafka to process the information. The DxCollector must be launched in another terminal.

🔍 DxCollector -- Commands

Note that both Kafka and JSON options can be activated at the same time.

• ./dxcollector [-h] [-f <json|yaml>] [-o <filename>] [--kafka]
  • filename defaults to datos_exporter.{json/yaml}
  • --kafka enables kafka export.

💻 DxCollector -- Important code

The following parameters should be configured on intent-assurance/dxagent-master/agent/dxcollector.py. This version deploys Kafka and GNMI server in local mode, but if you want to use an external Kafka Cluster, you will need to update the KAFKA_BROKER and KAFKA_TOPIC options.

• GNMI_SERVER: gNMI address.
• GNMI_MODE: Subscription mode:
  • SAMPLE: Receive data in time intervals.
  • ON_CHANGE: Receive data when data is different.
• KAFKA_BROKER: Address of the Kafka Broker.
• KAFKA_TOPIC: Topic to send the DxAgent data.
• XPATHS: See agent/gnmi/README.md.

📋 Requirements

The list of requirements are automatically installed during the sudo ./setup.sh script.

• Protobuf 3.20.0
  • pip install protobuf == 3.20.0
• Pyyaml
  • pip install pyyaml
• Cisco-gnmi
  • pip install cisco-gnmi
• Confluent_kafka
  • pip install confluent_kafka

📜 License

LoTAF is open-source under the GPL-3.0 license. See the LICENSE file for details.