gistfile1.txt

With the sample Open Metrics SLOC scrape, how to represent that in a Grafana table with these headers?
Baseline, Release, Total Baseline SLOC Ada, Total Release SLOC C++, Added SLOC Ada, Added SLOC C++, Modified SLOC Ada, Modified SLOC C++, Deleted SLOC Ada, Deleted SLOC C++
ChatGPT said:

To represent the OpenMetrics SLOC data in a Grafana table with your specified headers, follow this plan:
🪄 Grafana Table Setup Plan
📋 Desired Headers:

| Baseline | Release | Total Baseline SLOC Ada | Total Baseline SLOC C++ | Added SLOC Ada | Added SLOC C++ | Modified SLOC Ada | Modified SLOC C++ | Deleted SLOC Ada | Deleted SLOC C++ |
🧮 Step 1: Use Prometheus as a Data Source

In Grafana:

    Add your Prometheus server as a data source.

    Create a new dashboard panel with Visualization → Table.

🧠 Step 2: Prometheus Queries Per Column

For each metric, you’ll query using label_values to filter by language, baseline_version, and release.

Use Grafana's instant queries to get single-point values for a snapshot table.

Example queries for each column:
Column	Query
Baseline	label_values(sloc_total_baseline_lines, baseline_version) (use Transform later)
Release	label_values(sloc_total_baseline_lines, release) (use Transform later)
Total Baseline SLOC Ada	sloc_total_baseline_lines{language="ada"}
Total Baseline SLOC C++	sloc_total_baseline_lines{language="cpp"}
Added SLOC Ada	sloc_added_lines{language="ada"}
Added SLOC C++	sloc_added_lines{language="cpp"}
Modified SLOC Ada	sloc_modified_lines{language="ada"}
Modified SLOC C++	sloc_modified_lines{language="cpp"}
Deleted SLOC Ada	sloc_deleted_lines{language="ada"}
Deleted SLOC C++	sloc_deleted_lines{language="cpp"}
🛠️ Step 3: Use Transformations in Grafana

Once all queries are added:

    Add a transformation → "Outer join" by baseline_version and release labels.

    Rename the fields to match your header titles exactly (e.g., "Added SLOC Ada").

    Optionally, use Format → Table and remove timestamp columns if you don’t need them.

🎯 Result: A single Grafana table like:
Baseline	Release	Total Baseline SLOC Ada	Total Baseline SLOC C++	Added SLOC Ada	...
1.2.3	R45	12345	67890	100	...