A core dump handler program for kubernetes cluster.
It works on the host machine of every k8s node by the way of "Piping core dumps to a program" (See man 5 core for details).
The installation and configuration to the host machine are managed by a privileged pod deployed via k8s daemonset.
When a core dump occurred, it will collect the k8s related information such as k8s namespace, pod uid and container name as a label to store the coredump files. The other part of this project provides the authorized user downloading according it. (See github.com/fenggw-fnst/coredump-detector)
Currently the container runtimes it supports are docker and cri-o.
- Prerequisites:
- k8s cluster must be --allow-privileged=true
- libcurl
- Deploy: Complete the k8s daemonset configuration file refer to sample.yaml. $ kubectl create -f sample.yaml
- Prerequisites:
- libcurl
- cJSON (static compilation)
- procps (static compilation)
-
Compile: $ gcc kcdt.c -o build/kcdt -lcurl -l:libcjson.a -l:libprocps.a -Wall
-
Build docker image: $ cd build $ docker build --no-cache -t repo/name:tag .
-
Update build.env with your image tag options
-
$ make image
-
Other build options are available - Just type
maketo see them.
- cURL: MIT/X derivate license
- cJSON: MIT
- procps: GNU GPLv2
Copyright (c) 2019 FUJITSU LIMITED. All rights reserved. Author: Guangwen Feng [email protected]
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.