3DT
3DT is a monitoring agent which exposes a HTTP API for querying from the /system/health/v1 DC/OS api. 3DT puller collects the data from 3dt agents and represents individual node health for things like system resources as well as DC/OS-specific services.
Build
go get github.com/dcos/3dt
cd $GOPATH/src/github.com/dcos/3dt
make install
./3dt -version
Run
Run 3DT once, on a DC/OS host to check systemd units:
3dt -diag
Get verbose log output:
3dt -diag -verbose
Run the 3DT aggregation service to query all cluster hosts for health state:
3dt -pull
Start the 3DT health API endpoint:
3dt
3DT CLI Arguments
-verbose | Verbose Logging.
-diag | Diagnostics mode. This will execute health checks once, return the output and exit.
-version | Print version, revision and exit.
-pull | Run the aggregation service and expose the /system/health/v1/* api.
-port | Web server TCP port. (default 1050)
-pull-interval | Set pull interval, default 60 sec.
Test
make test
Or from any submodule:
go test