postgres_hc

Executes a collection of SQL queries and compiles the results in a nicely formatted html page. Perfect to use for monthly health checks, or to investigate a new postgres database.

Example pictures: https://imgur.com/a/tdFh89G

Requierements

You need python and the psycopg2 module for this script. On linux simply use:

pip install psycopg2-binary

On windows:

follow this guide to install pip:

https://www.liquidweb.com/kb/install-pip-windows/

and then

pip install psycopg2-binary

Requirements if you want to generate a pdf version of the report: (for debian based system)

sudo apt install wkhtmltopdf && pip install pdfkit

Example use:

python doctor.py -ip 192.168.56.1 -p 5432 -d dbname -U username -W "password" -o

To generate pdf version:

python doctor.py -P -o -ip 192.168.56.1 -p 5432 -d dbname -U username -W "password"

List of options and commands:

python doctor.py -h
./doctor.py --help

PS: if there are special characters, like $ or &, in the password use backslash! ('\')

The report will be placed in the output directory, if you use the -o command it will open in the browser automatically.

Adding your own queries

1. Save the new query in the 'sql' directory
2. in the script doctor.py, go to the "createHtmlBody" function
3. Add a new line using this format: html += htmltable("Title to display","filename_of_query.sql")

Would appreciate it if you share any cool queries with me so I can add them to this repo.

Heads Up:

Some of the used SQL queries do not work with old postgres versions.

Sources:

I took several queries from these guys:

https://www.citusdata.com/blog/2019/03/29/health-checks-for-your-postgres-database/

https://github.com/NikolayS/postgres_dba