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.
go get github.com/dcos/3dt
cd $GOPATH/src/github.com/dcos/3dt
make install
./3dt -version
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
-agent-port int
Use TCP port to connect to agents. (default 1050)
-ca-cert string
Use certificate authority.
-command-exec-timeout int
Set command executing timeout (default 120)
-diag
Get diagnostics output once on the CLI. Does not expose API.
-diagnostics-bundle-dir string
Set a path to store diagnostic bundles (default "/var/run/dcos/3dt/diagnostic_bundles")
-diagnostics-job-timeout int
Set a global diagnostics job timeout (default 720)
-diagnostics-units-since string
Collect systemd units logs since (default "24 hours ago")
-diagnostics-url-timeout int
Set a local timeout for every single GET request to a log endpoint (default 2)
-endpoint-config string
Use endpoints_config.json (default "/opt/mesosphere/endpoints_config.json")
-exhibitor-ip string
Use Exhibitor IP address to discover master nodes. (default "http://127.0.0.1:8181/exhibitor/v1/cluster/status")
-force-tls
Use HTTPS to do all requests.
-health-update-interval int
Set update health interval in seconds. (default 60)
-master-port int
Use TCP port to connect to masters. (default 1050)
-port int
Web server TCP port. (default 1050)
-pull
Try to pull checks from DC/OS hosts.
-pull-interval int
Set pull interval in seconds. (default 60)
-pull-timeout int
Set pull timeout. (default 3)
-verbose
Use verbose debug output.
-version
Print version.
make test
Or from any submodule:
go test