New env var CTOP_DEBUG_FILE to specify a path to log file
2.0 KiB
Debug Mode
ctop
comes with a built-in logging facility and local socket server to simplify debugging at run time.
Quick Start
If running ctop
via Docker, debug logging can be most easily enabled as below:
docker run -ti --rm \
--name=ctop \
-e CTOP_DEBUG=1 \
-e CTOP_DEBUG_TCP=1 \
-p 9000:9000 \
-v /var/run/docker.sock:/var/run/docker.sock \
quay.io/vektorlab/ctop:latest
Log messages can be followed by connecting to the default listen address:
curl -s localhost:9000
example output:
15:06:43.881 ▶ NOTI 002 logger initialized
15:06:43.881 ▶ INFO 003 loaded config param: "filterStr": ""
15:06:43.881 ▶ INFO 004 loaded config param: "sortField": "state"
15:06:43.881 ▶ INFO 005 loaded config switch: "sortReversed": false
15:06:43.881 ▶ INFO 006 loaded config switch: "allContainers": true
15:06:43.881 ▶ INFO 007 loaded config switch: "enableHeader": true
15:06:43.883 ▶ INFO 008 collector started for container: 7120f83ca...
...
Unix Socket
Debug mode is enabled via the CTOP_DEBUG
environment variable:
CTOP_DEBUG=1 ./ctop
While ctop
is running, you can connect to the logging socket via socat or similar tools:
socat unix-connect:./ctop.sock stdio
TCP Logging Socket
In lieu of using a local unix socket, TCP logging can be enabled via the CTOP_DEBUG_TCP
environment variable:
CTOP_DEBUG=1 CTOP_DEBUG_TCP=1 ./ctop
A TCP listener for streaming log messages will be started on the default listen address(0.0.0.0:9000
)
Log to file
You can also log to a file by specifying CTOP_DEBUG_FILE=/path/to/ctop.log
environment variable:
CTOP_DEBUG=1 CTOP_DEBUG_FILE=ctop.log ./ctop
This is useful for GoLand to see logs right in debug panel:
- Edit Run configuration
- Go to Logs tab
- Specify this log file in "Log file to be shown in console". Then during debugging you'll see the log tab in debug panel: