Problem statement : Cells in a Grafana table visualization are not displaying red-colored text for the value “FAIL” despite applying value mappings and column-specific overrides. The expected background color change is not occurring, and the configuration seems ineffective.
Step to Light up cells in a table visualization panel with red coloured text when their value is equal to “FAIL”.
Step 1: Create table in postgreSQL using these query
Step 2 : Create new dashboard in grafana and select table visualization.
Step 3 : In dashboard panel query (Code area) write the query to fetch data from database.
Step 4 : In right side dashboard panel configuration scroll down then click on Add field override.
Now follow these path:
Add field override > Fields with name >Choose the column(in my case result)
Now click on Add override property and then select Value Mapping
Step 5 :Now map the value and update it.
Note : Cell options → Cell type Colored text and Color scheme ->Single color(Black).
Final output
Light up cells in a table visualization panel with red coloured text when their value is equal to “FAIL”and green when value is “PASS”.