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Log Management

The tedge-agent service provides out of the box support for requesting log files from a device directly from your Cumulocity UI.

If you go to Cumulocity, you should see that you are able to see the logs tab. However, no log type is yet available. To add a new log type, you need to edit the tedge-log-plugin.toml in /etc/tedge/plugins/tedge-log-plugin.toml.

In this toml file you specify the log type and log path of the logs wished to be retrieved from Cumulocity UI. For example, if you wish to request thin-edge.io software logs and mosquitto logs an example toml file would be:

file: /etc/tedge/plugins/tedge-log-plugin.toml
files = [
{ type = "software-management", path = "/var/log/tedge/agent/software-*" },
{ type = "mosquitto", path = "/var/log/mosquitto/mosquitto.log" }
]

Note that path need not be a complete path. It can be a full path to a log file or a glob pattern. For example the "software-management" type is a glob pattern that groups any file inside "/var/log/tedge/agent/" that starts with "software-".

The type key in the toml is the name of the log with you will see in the Cumulocity UI:

Log request dropdown