Install Rudder relay on Debian or Ubuntu
When using syslog reporting, Rudder agent requires that a syslog server is installed on the node. This syslog server can be either:
One of them is generally installed by default, but it may not be the case with minimal images. In this case you should install one (preferably syslog-ng or rsyslog).
Each official package is signed with our GPG signature. To ensure the packages you will install are official builds and have not been altered, import our key into apt using the following command:
wget --quiet -O- "https://repository.rudder.io/apt/rudder_apt_key.pub" | sudo apt-key add -
Our key fingerprint is:
pub 4096R/474A19E8 2011-12-15 Rudder Project (release key) <firstname.lastname@example.org> Key fingerprint = 7C16 9817 7904 212D D58C B4D1 9322 C330 474A 19E8
Add Rudder’s package repository:
echo "deb http://repository.rudder.io/apt/5.1/ $(lsb_release -cs) main" > /etc/apt/sources.list.d/rudder.list
Update your local package database to retrieve the list of packages available on our repository:
Install the package:
apt-get install rudder-server-relay
To complete this step, please make sure that your node is configured successfully and appears in your Rudder web interface.
You have to tell the Rudder root server that a node will be a relay. To do so,
launch the rudder-node-to-relay script on the root server, supplying the UUID of the
host to be considered as a relay. You can find the UUID of your node with the
rudder agent info command.
When every step has completed successfully:
The Rudder root server will recognize the new node as a relay
It will generate specific policies for the relay
The relay will update and switch to his new role
This is an example of node details pane showing a relay server. Note the "Role: Rudder relay server" part that shows that the machine has successfully changed from a node to a relay.
When you have at least one relay, you will likely want to add nodes on it.
You then have two possible cases:
You want to switch an already existing node to the relay
You want to add a new one
The procedure on both cases is the same, you have to:
Create / update the file /var/rudder/cfengine-community/policy_server.dat with the IP address or the fully qualified domain name of the relay server (instead of the root server)
echo "rudder-relay.example.com" > /var/rudder/cfengine-community/policy_server.dat
Trigger an inventory immediately to make sure the node is registered correctly
rudder agent inventory
After those steps, the node should be registered correctly on your Rudder infrastructure.
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