Deploy with a package

Install

Tetragon will be managed as a systemd service. Tarballs are built and distributed along the assets in the releases.

1. First download the latest binary tarball, using curl for example to download the amd64 release:

   curl -LO https://github.com/cilium/tetragon/releases/download/v1.1.0/tetragon-v1.1.0-amd64.tar.gz
   

2. Extract the downloaded archive, and start the install script to install Tetragon. Feel free to inspect the script before starting it.

   tar -xvf tetragon-v1.1.0-amd64.tar.gz
   cd tetragon-v1.1.0-amd64/
   sudo ./install.sh
   

   If Tetragon was successfully installed, the final output should be similar to:

   Tetragon installed successfully!
   

3. Finally, you can check the Tetragon systemd service.

   sudo systemctl status tetragon
   

   The output should be similar to:

   ● tetragon.service - Tetragon eBPF-based Security Observability and Runtime Enforcement
    Loaded: loaded (/lib/systemd/system/tetragon.service; enabled; vendor preset: enabled)
    Active: active (running) since Mon 2023-01-23 20:08:16 CET; 5s ago
      Docs: https://github.com/cilium/tetragon/
   Main PID: 138819 (tetragon)
     Tasks: 17 (limit: 18985)
    Memory: 151.7M
       CPU: 913ms
    CGroup: /system.slice/tetragon.service
            └─138819 /usr/local/bin/tetragon
   

Configuration

The default Tetragon configuration shipped with the Tetragon package will be installed in /usr/local/lib/tetragon/tetragon.conf.d/. Local administrators can change the configuration by adding drop-ins inside /etc/tetragon/tetragon.conf.d/ to override the default settings or use the command line flags. To restore default settings, remove any added configuration inside /etc/tetragon/tetragon.conf.d/.

See Tetragon daemon configuration for further details.

Upgrade

To upgrade Tetragon:

1. Download the new tarball.

   curl -LO https://github.com/cilium/tetragon/releases/download/v1.1.0/tetragon-v1.1.0-amd64.tar.gz
   

2. Stop the Tetragon service.

   sudo systemctl stop tetragon
   

3. Remove the old Tetragon version.

   sudo rm -fr /usr/lib/systemd/system/tetragon.service
   sudo rm -fr /usr/local/bin/tetragon
   sudo rm -fr /usr/local/lib/tetragon/
   

4. Install the upgraded Tetragon version.

   tar -xvf tetragon-v1.1.0-amd64.tar.gz
   cd tetragon-v1.1.0-amd64/
   sudo ./install.sh
   

Uninstall

To completely remove Tetragon run the uninstall.sh script that is provided inside the tarball.

sudo ./uninstall.sh

Or remove it manually.

sudo systemctl stop tetragon
sudo systemctl disable tetragon
sudo rm -fr /usr/lib/systemd/system/tetragon.service
sudo systemctl daemon-reload
sudo rm -fr /usr/local/bin/tetragon
sudo rm -fr /usr/local/bin/tetra
sudo rm -fr /usr/local/lib/tetragon/

To just purge custom settings:

sudo rm -fr /etc/tetragon/

Operating

gRPC API access

To access the gRPC API with tetra client, set --server-address to point to the corresponding address:

sudo tetra --server-address unix:///var/run/tetragon/tetragon.sock getevents

See restrict gRPC API access for further details.

Tetragon Events

By default JSON events are logged to /var/log/tetragon/tetragon.log unless this location is changed. Logs are always rotated into the same directory.

To read real-time JSON events, tailing the logs file is enough.

sudo tail -f /var/log/tetragon/tetragon.log

Tetragon also ships a gRPC client that can be used to receive events.

1. To print events in json format using tetra gRPC client:

   sudo tetra --server-address "unix:///var/run/tetragon/tetragon.sock" getevents
   

2. To print events in human compact format:

   sudo tetra --server-address "unix:///var/run/tetragon/tetragon.sock" getevents -o compact
   

What’s next

See Explore security observability events to learn more about how to see the Tetragon events.