A CLI for running a core dump session on kubernetes using the zipfile generated by core-dump-handler
This tool is still under active development but the core functionality is in place. Currently it support nodejs, java or default lldb tools.
Ensure core-dump-handler is installed on your cluster.
Install the cli cargo install core-dump-client
If you don't have rust installed you can get it with rustup
Ensure your kubectl client is logged into the cluster
kubectl install instructions are available here
Create a debug environment with
cdc -c [name-of-zipfile] -i [crashed-image-name]
e.g.
./cdc.sh 36c0d272-3295-4474-a16e-00885ba04fed-dump-1631477784-crashing-app-848dc79df4-srqkv-node-8-4.zip quay.io/number9/example-crashing-nodejs-app
This will log you into a running container with lldb tools and core file info available to you.
To start a debug session in the environment runrundebug.sh command.
./rundebug
To inspect the metadata that was saved with crash ls will list the folder container your core file and the metadata json.