Render interesting charts from CI/CD and infrastructure logs

buildchart-ag is a command line tool for generating SVG images from log files. Currently, it expects Jenkins console log file output in HTML form (saved directly from the Jenkins web UI). The HTML logs are required in order to properly thread parallel task output. You can also feed it kubernetes event logs, and buildchart-ag will attempt to correlate the events with the logs visually. Generate the event logs like so: kubectl get event -n NAMEPACE -o json.

By default, buildchart-ag will not render any tasks that take less than 3 seconds. You can change this with the --filter option. Using --filter 0 will have buildchart-ag include everything.

Here is the default CLI output:

buildchart-ag - copyright (C) 2023 Anthony Green <green@redhat.com>
Usage: buildchart-ag [-v|--verbose] [-s|--scale SCALE] [-t|--timestamps]
                     [-f|--filter FILTER] logs-file [log-file]*
Available options:
  -v, --verbose            produce verbose output
  -s, --scale SCALE        scale multiplier (default: 10)
  -t, --timestamps         show timestamps
  -f, --filter FILTER      filter seconds (default: 3)
Distributed under the terms of the MIT license.

buildchart-ag has been tested on Linux with sbcl and uses ocicl for dependency management. Run ocicl install to download dependencies, and make to build.

Here's sample output that shows kubernetes events overlayed on the Jenkins events. Note that the shaded rectangles represent nested elements in Jenkins. The darker the box, the deeper the nesting. This makes it easy to quickly identify the section that you are looking at.

This next example shows a visualization of parallel Jenkins tasks. In every case you must feed buildchart-ag the full HTML console output from the Jenkins web UI. This example was built from https://ci.jenkins.io/job/Core/job/jenkins/job/master/5558/consoleFull. This also shows full timestamps enabled via the -t option.

buildchart-ag was written by Anthony Green.

• email : green@redhat.com
• linkedin : https://linkedin.com/in/green
• twitter : @antgreen