Grafana with Influxdb and python client

Recently I came across this tool called Grafana. Its a tool that you can use to show graphs and statistics of all kinds. The most popular combination for setup , is Grafana with influxdb as a database. 

I am sharing my setup steps, and supporting python scripts that can be used to generate information and write back to the database. And finally we get to see some nice graphs.

Note: I am using a Mac with Catalina OS 10.15. Python 3.6+.

Installation Plan:

1. Influxdb

2. Grafana

3. influxdb client module for Python.

• influxdb_client (for influxdb 1.8 or 2.x)
• influxdb (for 1.1.1 or less)
  

Docker : Most useful commands

Docker has a lot to talk about. But I am going to list a few commands here that come handy while working with it on a daily basis. We will list them in a sequence that looks like a tutorial.

1. List all docker containers

docker container ls

2. List all images

docker image ls

docker images

3. Spawn & run from an image, a new container.

docker run image_name COMMAND

Setting your first Jenkins project.

Setup Jenkins on your local PC in minutes

Since you are here, I am assuming that you are trying to find out ,  how to start with Jenkins and you have no clue about it . If it's true, then you are in the best place possible .

This is a blog on Jenkins setup for those guys who have absolutely no idea what to do or where to start.

How to work on a Python Project when modules versions needed are different? Use virtualenv

Gone are the days when you need to create a VM for working on a different set of tools.  People work on different projects which might need a special version of a module. (Or python itself) . The problem aggravates when  multiple users work on a single shared machine (Test environments or Build machines ) .Virtual Environments help solve problem . And its easy to use and share among fellow teammates.

SVN commands you must know as an Test Automation Engineer

In the course of automation and continuous integration , you will someday come across a stage where you have to perform svn operations . And obviously, using command line (forget fancy UIs to do your business) using command line. And then you will have to start digging in,  which will take a substantial amount time ...believe me.

GIT Essential Tips

GIT has become one of those tools in e business that you can't ignore anymore. So I suggest you learn to use the basics of the idea called GIT. For my tester friends, as you enter the automation phase, git is going to come around sooner or later. So watch out.

Important everyday command with GIT

1. How to revert to an old commit both on local and remote

git reset --hard HEAD~1

git push -f origin master

2. How to get all branches of a git project

git fetch --all

3. How to delete a branch from local computer

git branch -d name

4. How to delete a remote branch

git push origin --delete branch

5. How to shift changes from one branch to another

git stash

git checkout branch

git stash pop

How to run a Python program on the internet from anywhere?

I want to run a python program whenever I need and get some information out of it. The problem is, I want to call that through internet. And I want to show the content on a web page or some UI container. That's it. Let put this as a requirement.

Problem: Display some information on my web page calculated by a python program

How do we do it on our local computer? We run our program as : python my_program.py.

So maybe I can do something like: www.mywebsite.com/my_program.py . Can we? No idea.

I expect to collect the response in some variable (no idea how I can create a variable in the first place on html) and then display the contents of this variable. Displaying a simple text on html is known, so that should be easy.